Add analogix PD chip anx7411 device binding
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Xin Ji <[email protected]>
---
.../bindings/usb/analogix,anx7411.yaml | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/analogix,anx7411.yaml
diff --git a/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml b/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml
new file mode 100644
index 000000000000..c5c6d5a9dc17
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/analogix,anx7411.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Analogix ANX7411 Type-C controller bindings
+
+maintainers:
+ - Xin Ji <[email protected]>
+
+properties:
+ compatible:
+ enum:
+ - analogix,anx7411
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ connector:
+ type: object
+
+ allOf:
+ - $ref: ../connector/usb-connector.yaml
+
+ properties:
+ compatible:
+ const: usb-c-connector
+
+ power-role: true
+
+ data-role: true
+
+ try-power-role: true
+
+ required:
+ - compatible
+
+required:
+ - compatible
+ - reg
+ - connector
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec: anx7411@2C {
+ compatible = "analogix,anx7411";
+ reg = <0x2C>;
+ interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio0>;
+
+ typec_con: connector {
+ compatible = "usb-c-connector";
+ power-role = "dual";
+ data-role = "dual";
+ try-power-role = "source";
+
+ port {
+ typec_con_ep: endpoint {
+ remote-endpoint = <&usbotg_hs_ep>;
+ };
+ };
+ };
+ };
+ };
+...
--
2.25.1
Add driver for analogix ANX7411 USB Type-C DRP port controller.
Signed-off-by: Xin Ji <[email protected]>
---
V4 -> V5: Fix Greg h-k comment, remove DEBUG define
V3 -> V4: Fix compiling waring
V2 -> V3: Add changelog history
V1 -> V2: Fix compiling warning issue
---
drivers/usb/typec/Kconfig | 11 +
drivers/usb/typec/Makefile | 1 +
drivers/usb/typec/anx7411.c | 1471 +++++++++++++++++++++++++++++++++++
drivers/usb/typec/anx7411.h | 271 +++++++
4 files changed, 1754 insertions(+)
create mode 100644 drivers/usb/typec/anx7411.c
create mode 100644 drivers/usb/typec/anx7411.h
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index ab480f38523a..615183f46405 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -52,6 +52,17 @@ source "drivers/usb/typec/ucsi/Kconfig"
source "drivers/usb/typec/tipd/Kconfig"
+config TYPEC_ANX7411
+ tristate "Analogix ANX7411 Type-C DRP Port controller driver"
+ depends on I2C
+ depends on USB_ROLE_SWITCH
+ help
+ Say Y or M here if your system has Analogix ANX7411 Type-C DRP Port
+ controller driver.
+
+ If you choose to build this driver as a dynamically linked module, the
+ module will be called anx7411.ko.
+
config TYPEC_HD3SS3220
tristate "TI HD3SS3220 Type-C DRP Port controller driver"
depends on I2C
diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
index a0adb8947a30..f4e7188f174a 100644
--- a/drivers/usb/typec/Makefile
+++ b/drivers/usb/typec/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_TYPEC) += altmodes/
obj-$(CONFIG_TYPEC_TCPM) += tcpm/
obj-$(CONFIG_TYPEC_UCSI) += ucsi/
obj-$(CONFIG_TYPEC_TPS6598X) += tipd/
+obj-$(CONFIG_TYPEC_ANX7411) += anx7411.o
obj-$(CONFIG_TYPEC_HD3SS3220) += hd3ss3220.o
obj-$(CONFIG_TYPEC_QCOM_PMIC) += qcom-pmic-typec.o
obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o
diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
new file mode 100644
index 000000000000..fb9adda037b5
--- /dev/null
+++ b/drivers/usb/typec/anx7411.c
@@ -0,0 +1,1471 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright(c) 2022, Analogix Semiconductor. All rights reserved.
+ *
+ */
+#include <linux/gcd.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/usb/pd.h>
+#include <linux/usb/role.h>
+#include <linux/usb/typec.h>
+#include <linux/usb/typec_dp.h>
+#include <linux/usb/typec_mux.h>
+#include <linux/workqueue.h>
+#include <linux/power_supply.h>
+
+#include "anx7411.h"
+
+static u8 snk_identity[] = {
+ VENDOR_ID & 0xFF, (VENDOR_ID >> 8) & 0xFF, 0x00, 0x82, /* snk_id_hdr */
+ 0x00, 0x00, 0x00, 0x00, /* snk_cert */
+ 0x00, 0x00, PRODUCT_ID & 0xFF, (PRODUCT_ID >> 8) & 0xFF,/* 5snk_ama */
+};
+
+static u8 dp_caps[4] = {0xC6, 0x00, 0x00, 0x00};
+
+static int anx7411_reg_read(struct i2c_client *client,
+ u8 reg_addr)
+{
+ return i2c_smbus_read_byte_data(client, reg_addr);
+}
+
+static int anx7411_reg_block_read(struct i2c_client *client,
+ u8 reg_addr, u8 len, u8 *buf)
+{
+ return i2c_smbus_read_i2c_block_data(client, reg_addr, len, buf);
+}
+
+static int anx7411_reg_write(struct i2c_client *client,
+ u8 reg_addr, u8 reg_val)
+{
+ return i2c_smbus_write_byte_data(client, reg_addr, reg_val);
+}
+
+static int anx7411_reg_block_write(struct i2c_client *client,
+ u8 reg_addr, u8 len, u8 *buf)
+{
+ return i2c_smbus_write_i2c_block_data(client, reg_addr, len, buf);
+}
+
+static struct anx7411_i2c_select anx7411_i2c_addr[] = {
+ {TCPC_ADDRESS1, SPI_ADDRESS1},
+ {TCPC_ADDRESS2, SPI_ADDRESS2},
+ {TCPC_ADDRESS3, SPI_ADDRESS3},
+ {TCPC_ADDRESS4, SPI_ADDRESS4},
+};
+
+static int anx7411_detect_power_mode(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ int ret;
+ int mode;
+
+ ret = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
+ if (ret < 0) {
+ dev_info(dev, "failed to read request current.\n");
+ return ret;
+ }
+ ctx->typec.request_current = ret * CURRENT_UNIT; /* 50ma per unit */
+
+ ret = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
+ if (ret < 0) {
+ dev_info(dev, "failed to read voltage.\n");
+ return ret;
+ }
+ ctx->typec.request_voltage = ret * VOLTAGE_UNIT; /* 100mv per unit */
+
+ if (ctx->psy_online == ANX7411_PSY_OFFLINE) {
+ ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
+ ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
+ power_supply_changed(ctx->psy);
+ }
+
+ if (!ctx->typec.cc_orientation_valid) {
+ dev_info(dev, "cc orientation is 0(debug cable plug in).\n");
+ return 0;
+ }
+
+ if (ctx->typec.cc_connect == CC1_CONNECTED)
+ mode = CC1_RP(ctx->typec.cc_status);
+ else
+ mode = CC2_RP(ctx->typec.cc_status);
+ if (mode) {
+ dev_info(dev, "set power opmode as %d.\n", mode - 1);
+ typec_set_pwr_opmode(ctx->typec.port, mode - 1);
+ return 0;
+ }
+
+ typec_set_pwr_opmode(ctx->typec.port, TYPEC_PWR_MODE_PD);
+
+ return 0;
+}
+
+static int anx7411_register_partner(struct anx7411_data *ctx,
+ int pd, int accessory)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ struct typec_partner_desc desc;
+
+ if (ctx->typec.partner) {
+ dev_info(dev, "ignore register typec partner request.\n");
+ return 0;
+ }
+
+ dev_info(dev, "register typec partner port.\n");
+
+ desc.usb_pd = pd;
+ desc.accessory = accessory;
+ desc.identity = NULL;
+ ctx->typec.partner = typec_register_partner(ctx->typec.port, &desc);
+ if (IS_ERR(ctx->typec.partner)) {
+ dev_err(dev, "failed to register partner\n");
+ ctx->typec.partner = NULL;
+ return PTR_ERR(ctx->typec.partner);
+ }
+
+ return 0;
+}
+
+static int anx7411_detect_cc_orientation(struct anx7411_data *ctx)
+{
+ int ret;
+ int cc1_rd, cc2_rd;
+ int cc1_ra, cc2_ra;
+ int cc1_rp, cc2_rp;
+ struct device *dev = &ctx->spi_client->dev;
+
+ ret = anx7411_reg_read(ctx->spi_client, CC_STATUS);
+ if (ret < 0) {
+ dev_info(dev, "failed to read cc status.\n");
+ return ret;
+ }
+
+ dev_info(dev, "cc status %.02x\n", ret);
+
+ ctx->typec.cc_status = ret;
+
+ cc1_rd = ret & CC1_RD ? 1 : 0;
+ cc2_rd = ret & CC2_RD ? 1 : 0;
+ cc1_ra = ret & CC1_RA ? 1 : 0;
+ cc2_ra = ret & CC2_RA ? 1 : 0;
+ cc1_rp = CC1_RP(ret);
+ cc2_rp = CC2_RP(ret);
+
+ /* Debug cable, nothing to do */
+ if (cc1_rd && cc2_rd) {
+ ctx->typec.cc_orientation_valid = 0;
+ anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_DEBUG);
+ return 0;
+ }
+
+ if (cc1_ra && cc2_ra) {
+ ctx->typec.cc_orientation_valid = 0;
+ anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_AUDIO);
+ return 0;
+ }
+
+ ctx->typec.cc_orientation_valid = 1;
+
+ anx7411_register_partner(ctx, 1, TYPEC_ACCESSORY_NONE);
+
+ if (cc1_rd || cc1_rp) {
+ dev_info(dev, "set orientation to normal\n");
+ typec_set_orientation(ctx->typec.port,
+ TYPEC_ORIENTATION_NORMAL);
+ ctx->typec.cc_connect = CC1_CONNECTED;
+ }
+
+ if (cc2_rd || cc2_rp) {
+ dev_info(dev, "set orientation to reverse\n");
+ typec_set_orientation(ctx->typec.port,
+ TYPEC_ORIENTATION_REVERSE);
+ ctx->typec.cc_connect = CC2_CONNECTED;
+ }
+
+ dev_info(dev, "cc1_rp(%d), cc2_rp(%d)", cc1_rp, cc2_rp);
+ dev_info(dev, "\tcc1_rd(%d), cc2_rd(%d), cc_connected(%d).\n",
+ cc1_rd, cc2_rd, ctx->typec.cc_connect);
+
+ return 0;
+}
+
+static int anx7411_set_mux(struct anx7411_data *ctx, int pin_assignment)
+{
+ int mode = TYPEC_STATE_SAFE;
+ struct device *dev = &ctx->spi_client->dev;
+
+ switch (pin_assignment) {
+ case SELECT_PIN_ASSIGMENT_U:
+ /* default 4 line USB 3.1 */
+ mode = TYPEC_STATE_MODAL;
+ break;
+ case SELECT_PIN_ASSIGMENT_C:
+ case SELECT_PIN_ASSIGMENT_E:
+ /* 4 line DP */
+ mode = TYPEC_STATE_SAFE;
+ break;
+ case SELECT_PIN_ASSIGMENT_D:
+ /* 2 line DP, 2 line USB */
+ mode = TYPEC_MODE_USB3;
+ break;
+ default:
+ mode = TYPEC_STATE_SAFE;
+ break;
+ }
+
+ ctx->typec.pin_assignment = pin_assignment;
+
+ dev_info(dev, "pin assignment %d, mux mode %d.\n",
+ pin_assignment, mode);
+
+ return typec_set_mode(ctx->typec.port, mode);
+}
+
+static void anx7411_set_usb_role(struct anx7411_data *ctx, enum usb_role role)
+{
+ struct device *dev = &ctx->spi_client->dev;
+
+ if (!ctx->typec.role_sw) {
+ dev_info(dev, "no usb role switch");
+ return;
+ }
+
+ usb_role_switch_set_role(ctx->typec.role_sw, role);
+}
+
+static int anx7411_data_role_detect(struct anx7411_data *ctx)
+{
+ int ret;
+ struct device *dev = &ctx->spi_client->dev;
+
+ ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
+ if (ret < 0) {
+ dev_err(dev, "read system status failed: %d.\n", ret);
+ return ret;
+ }
+
+ ctx->typec.data_role = (ret & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
+ ctx->typec.vconn_role = (ret & VCONN_STATUS) ? TYPEC_SOURCE : TYPEC_SINK;
+
+ typec_set_data_role(ctx->typec.port, ctx->typec.data_role);
+ typec_set_vconn_role(ctx->typec.port, ctx->typec.vconn_role);
+
+ if (ctx->typec.data_role == TYPEC_HOST)
+ anx7411_set_usb_role(ctx, USB_ROLE_HOST);
+ else
+ anx7411_set_usb_role(ctx, USB_ROLE_DEVICE);
+
+ dev_info(dev, "data role change, status(0x%.02x), data role(%d)\n",
+ ret, ctx->typec.data_role);
+
+ return 0;
+}
+
+static int anx7411_power_role_detect(struct anx7411_data *ctx)
+{
+ int ret;
+ struct device *dev = &ctx->spi_client->dev;
+
+ ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
+ if (ret < 0) {
+ dev_err(dev, "read system status failed: %d.\n", ret);
+ return ret;
+ }
+
+ ctx->typec.power_role = (ret & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
+
+ if (ctx->typec.power_role == TYPEC_SOURCE) {
+ ctx->typec.request_current = DEF_1_5A;
+ ctx->typec.request_voltage = DEF_5V;
+ }
+
+ dev_info(dev, "power role change, status(0x%.02x), power role(%d).\n",
+ ret, ctx->typec.power_role);
+ typec_set_pwr_role(ctx->typec.port, ctx->typec.power_role);
+
+ return 0;
+}
+
+static int anx7411_cc_status_detect(struct anx7411_data *ctx)
+{
+ anx7411_detect_cc_orientation(ctx);
+ anx7411_detect_power_mode(ctx);
+
+ return 0;
+}
+
+static int anx7411_partner_unregister_altmode(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ int i;
+
+ dev_info(dev, "unregister typec altmode.\n");
+
+ ctx->typec.dp_altmode_enter = 0;
+ ctx->typec.cust_altmode_enter = 0;
+
+ for (i = 0; i < MAX_ALTMODE; i++)
+ if (ctx->typec.amode[i]) {
+ typec_unregister_altmode(ctx->typec.amode[i]);
+ ctx->typec.amode[i] = NULL;
+ }
+
+ ctx->typec.pin_assignment = 0;
+ return 0;
+}
+
+static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
+ int svid, int vdo)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ struct typec_altmode_desc desc;
+ int i;
+
+ dev_info(dev, "register typec altmode -> vdo = 0x%x.\n", vdo);
+ desc.svid = svid;
+ desc.vdo = vdo;
+
+ for (i = 0; i < MAX_ALTMODE; i++)
+ if (!ctx->typec.amode[i])
+ break;
+
+ desc.mode = i + 1; /* start with 1 */
+
+ if (i >= MAX_ALTMODE) {
+ dev_info(dev, "no altmode space for registering\n");
+ return -ENOMEM;
+ }
+
+ ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner,
+ &desc);
+ if (IS_ERR(ctx->typec.amode[i])) {
+ dev_err(dev, "failed to register altmode\n");
+ ctx->typec.amode[i] = NULL;
+ return PTR_ERR(ctx->typec.amode);
+ }
+
+ return 0;
+}
+
+static int anx7411_unregister_partner(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+
+ dev_info(dev, "unregister typec partner port.\n");
+ if (ctx->typec.partner) {
+ typec_unregister_partner(ctx->typec.partner);
+ ctx->typec.partner = NULL;
+ }
+
+ return 0;
+}
+
+static int anx7411_update_altmode(struct anx7411_data *ctx, int svid)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ int i;
+
+ dev_info(dev, "update typec altmode to true.\n");
+
+ if (svid == DP_SVID)
+ ctx->typec.dp_altmode_enter = 1;
+ else
+ ctx->typec.cust_altmode_enter = 1;
+
+ for (i = 0; i < MAX_ALTMODE; i++) {
+ if (!ctx->typec.amode[i])
+ continue;
+
+ if (ctx->typec.amode[i]->svid == svid) {
+ typec_altmode_update_active(ctx->typec.amode[i], true);
+ typec_altmode_notify(ctx->typec.amode[i],
+ ctx->typec.pin_assignment,
+ &ctx->typec.data);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int anx7411_register_altmode(struct anx7411_data *ctx,
+ bool dp_altmode, u8 *buf)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ int ret;
+ int svid;
+ int mid;
+
+ if (!ctx->typec.partner) {
+ dev_info(dev, "partner not register yet, ignore altmode(%d)\n",
+ dp_altmode);
+ return 0;
+ }
+
+ svid = DP_SVID;
+ if (dp_altmode) {
+ dev_info(dev, "register DP altmode\n");
+ mid = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
+
+ return anx7411_typec_register_altmode(ctx, svid, mid);
+ }
+
+ svid = (buf[3] << 8) | buf[2];
+ if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_ENTER_MODE)) {
+ dev_info(dev, "svid(0x%x) enter mode\n", svid);
+ return anx7411_update_altmode(ctx, svid);
+ }
+
+ if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_DIS_MOD)) {
+ dev_info(dev, "ignore VDM message 0x%.02x%.02x\n",
+ buf[0], buf[1]);
+ return 0;
+ }
+
+ mid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24);
+
+ ret = anx7411_typec_register_altmode(ctx, svid, mid);
+ if (ctx->typec.cust_altmode_enter)
+ ret |= anx7411_update_altmode(ctx, svid);
+
+ return ret;
+}
+
+static int anx7411_parse_cmd(struct anx7411_data *ctx, u8 type, u8 *buf, u8 len)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ u8 cur_50ma, vol_100mv;
+
+ dev_info(dev, "received message: type:0x%.02x, len:%d, buf[0]:%d\n",
+ type, len, buf[0]);
+
+ switch (type) {
+ case TYPE_SRC_CAP:
+ cur_50ma = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
+ vol_100mv = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
+ dev_info(dev, "get current(%dma), voltage(%dmv), power(%dmw)\n",
+ cur_50ma * CURRENT_UNIT, vol_100mv * VOLTAGE_UNIT,
+ cur_50ma * vol_100mv * 5);
+
+ ctx->typec.request_voltage = vol_100mv * VOLTAGE_UNIT;
+ ctx->typec.request_current = cur_50ma * CURRENT_UNIT;
+
+#ifndef CUST_SINK_CTRL_EN
+ ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
+ ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
+ power_supply_changed(ctx->psy);
+#else
+ /* Enable OCM automatically control sink_ctrl pin*/
+ dev_info(dev, "Enable OCM auto control sink_ctrl pin\n");
+ anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
+ anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) &
+ ~SINK_CTRL_DIS_FLAG);
+ if (vol_100mv != REQ_VOL_20V_IN_100MV)
+ break;
+
+ if (cur_50ma != REQ_CUR_2_25A_IN_50MA &&
+ cur_50ma != REQ_CUR_3_25A_IN_50MA)
+ break;
+
+ /* Disable OCM automatically control sink_ctrl pin*/
+ dev_info(dev, "Disable OCM auto control sink_ctrl pin\n");
+ anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
+ anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) |
+ SINK_CTRL_DIS_FLAG);
+
+ ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
+ ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
+ power_supply_changed(ctx->psy);
+#endif
+ break;
+ case TYPE_SNK_CAP:
+ break;
+ case TYPE_SVID:
+ break;
+ case TYPE_SNK_IDENTITY:
+ break;
+ case TYPE_GET_DP_ALT_ENTER:
+ /* DP alt mode enter success */
+ if (buf[0])
+ anx7411_update_altmode(ctx, DP_SVID);
+ break;
+ case TYPE_DP_ALT_ENTER:
+ /* Update DP altmode */
+ anx7411_update_altmode(ctx, DP_SVID);
+ break;
+ case TYPE_OBJ_REQ:
+ anx7411_detect_power_mode(ctx);
+ break;
+ case TYPE_DP_CONFIGURE:
+ anx7411_set_mux(ctx, buf[1]);
+ break;
+ case TYPE_DP_DISCOVER_MODES_INFO:
+ /* Make sure discover modes valid */
+ if (buf[0] | buf[1])
+ /* Register DP Altmode */
+ anx7411_register_altmode(ctx, 1, buf);
+ break;
+ case TYPE_VDM:
+ /* Register other altmode */
+ anx7411_register_altmode(ctx, 0, buf);
+ break;
+ default:
+ dev_info(dev, "ignore message(0x%.02x).\n", type);
+ break;
+ }
+
+ return 0;
+}
+
+static u8 checksum(struct device *dev, u8 *buf, u8 len)
+{
+ u8 ret;
+ u8 i;
+
+ ret = 0;
+ for (i = 0; i < len; i++)
+ ret += buf[i];
+
+ return ret;
+}
+
+static int anx7411_read_msg_ctrl_status(struct i2c_client *client)
+{
+ return anx7411_reg_read(client, CMD_SEND_BUF);
+}
+
+static int anx7411_wait_msg_empty(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ int ret, val;
+
+ ret = readx_poll_timeout(anx7411_read_msg_ctrl_status,
+ client, val, (val < 0) || (val == 0),
+ 2000, 2000 * 150);
+ if (ret)
+ dev_info(dev, "msg buffer busy\n");
+
+ return ret;
+}
+
+static int anx7411_send_msg(struct anx7411_data *ctx, u8 type, u8 *buf, u8 size)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ u8 msg[MSG_LEN];
+ u8 crc;
+ int ret;
+
+ if (size)
+ memcpy(&msg[MSG_RAWDATA], buf, size);
+ msg[MSG_TYPE] = type;
+ msg[MSG_HEADER] = size + 1;
+
+ crc = checksum(dev, msg, size + HEADER_LEN);
+ msg[size + HEADER_LEN] = 0 - crc;
+
+ ret = anx7411_wait_msg_empty(ctx->spi_client);
+ if (ret) {
+ dev_info(dev, "firmware busy, ret(0x%.02x)\n", ret);
+ return ret;
+ }
+
+ anx7411_reg_block_write(ctx->spi_client,
+ CMD_SEND_BUF + 1, size + HEADER_LEN,
+ &msg[MSG_TYPE]);
+ return anx7411_reg_write(ctx->spi_client, CMD_SEND_BUF,
+ msg[MSG_HEADER]);
+}
+
+static int anx7411_process_cmd(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ u8 msg[MSG_LEN];
+ u8 len;
+ u8 crc;
+
+ /* Read message from firmware */
+ anx7411_reg_block_read(ctx->spi_client, CMD_RECV_BUF, MSG_LEN, msg);
+ anx7411_reg_write(ctx->spi_client, CMD_RECV_BUF, 0);
+
+ if (!msg[MSG_HEADER]) {
+ dev_info(dev, "message empty\n");
+ return 0;
+ }
+
+ len = msg[MSG_HEADER] & MSG_LEN_MASK;
+ crc = checksum(dev, msg, len + HEADER_LEN);
+ if (crc) {
+ dev_err(dev, "message error crc(0x%.02x)\n", crc);
+ return -1;
+ }
+
+ return anx7411_parse_cmd(ctx, msg[MSG_TYPE],
+ &msg[MSG_RAWDATA], len - 1);
+}
+
+static void anx7411_translate_payload(struct device *dev, __le32 *payload,
+ u32 *pdo, int nr, const char *type)
+{
+ int i;
+
+ dev_info(dev, "convert %s pdos to little endian format\n", type);
+ if (nr > PDO_MAX_OBJECTS) {
+ dev_err(dev, "nr(%d) exceed PDO_MAX_OBJECTS(%d)\n",
+ nr, PDO_MAX_OBJECTS);
+
+ return;
+ }
+
+ for (i = 0; i < nr; i++)
+ payload[i] = cpu_to_le32(pdo[i]);
+}
+
+static void anx7411_config(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ struct typec_params *typecp = &ctx->typec;
+ __le32 payload[PDO_MAX_OBJECTS];
+
+ dev_info(dev, "initial anx7411\n");
+ /* Config PD FW work under PD 2.0 */
+ anx7411_reg_write(ctx->spi_client, PD_REV_INIT, PD_REV20);
+ anx7411_reg_write(ctx->tcpc_client, FW_CTRL_0,
+ UNSTRUCT_VDM_EN | DELAY_200MS |
+ VSAFE1 | FRS_EN);
+ anx7411_reg_write(ctx->spi_client, FW_CTRL_1,
+ AUTO_PD_EN | FORCE_SEND_RDO);
+
+ /* Set VBUS current threshold */
+ anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_H, 0xff);
+ anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_L, 0x03);
+
+ /* Fix dongle compatible issue */
+ anx7411_reg_write(ctx->tcpc_client, FW_PARAM,
+ anx7411_reg_read(ctx->tcpc_client, FW_PARAM) |
+ DONGLE_IOP);
+ anx7411_reg_write(ctx->spi_client, INT_MASK, 0);
+
+ anx7411_reg_write(ctx->spi_client, PD_EXT_MSG_CTRL, 0xFF);
+
+ if (typecp->caps_flags & HAS_SOURCE_CAP) {
+ anx7411_translate_payload(dev, payload, typecp->src_pdo,
+ typecp->src_pdo_nr, "source");
+ anx7411_send_msg(ctx, TYPE_SRC_CAP, (u8 *)&payload,
+ typecp->src_pdo_nr * 4);
+ anx7411_send_msg(ctx, TYPE_SNK_IDENTITY, snk_identity,
+ sizeof(snk_identity));
+ anx7411_send_msg(ctx, TYPE_SET_SNK_DP_CAP, dp_caps,
+ sizeof(dp_caps));
+ }
+
+ if (typecp->caps_flags & HAS_SINK_CAP) {
+ anx7411_translate_payload(dev, payload, typecp->sink_pdo,
+ typecp->sink_pdo_nr, "sink");
+ anx7411_send_msg(ctx, TYPE_SNK_CAP, (u8 *)&payload,
+ typecp->sink_pdo_nr * 4);
+ }
+
+ if (typecp->caps_flags & HAS_SINK_WATT) {
+ if (typecp->sink_watt) {
+ anx7411_reg_write(ctx->spi_client, MAX_POWER,
+ typecp->sink_watt);
+ /* Set min power to 1W */
+ anx7411_reg_write(ctx->spi_client, MIN_POWER, 2);
+ }
+
+ if (typecp->sink_voltage)
+ anx7411_reg_write(ctx->spi_client, MAX_VOLTAGE,
+ typecp->sink_voltage);
+ }
+
+ if (!typecp->caps_flags)
+ usleep_range(5000, 6000);
+
+ ctx->fw_version = anx7411_reg_read(ctx->spi_client, FW_VER);
+ ctx->fw_subversion = anx7411_reg_read(ctx->spi_client,
+ FW_SUBVER);
+ dev_info(dev, "power on, ocm version %.02x%.02x\n",
+ ctx->fw_version, ctx->fw_subversion);
+}
+
+static void anx7411_chip_standby(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->tcpc_client->dev;
+
+ dev_info(dev, "Anx7411 enter into standby mode.\n");
+
+ anx7411_reg_write(ctx->spi_client, OCM_CTRL_0,
+ anx7411_reg_read(ctx->spi_client, OCM_CTRL_0) |
+ OCM_RESET);
+ anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80);
+ /* Set TCPC to RD and DRP enable */
+ anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CONTROL, 0x4A);
+ /* Send DRP toggle command */
+ anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0x99);
+
+ /* Send TCPC enter standby command */
+ anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0xFF);
+}
+
+static void anx7411_work_func(struct work_struct *work)
+{
+ int ret;
+ u8 buf[STATUS_LEN];
+ u8 int_change, int_status, alert0, alert1;
+ struct anx7411_data *ctx = container_of(work,
+ struct anx7411_data, work);
+ struct device *dev = &ctx->spi_client->dev;
+
+ mutex_lock(&ctx->lock);
+
+ /* Read interrupt change status */
+ ret = anx7411_reg_block_read(ctx->spi_client, INT_STS,
+ STATUS_LEN, buf);
+ if (ret < 0) {
+ /* Power standby mode, just return */
+ goto unlock;
+ }
+ int_change = buf[0];
+ int_status = buf[1];
+
+ /* Read alert register */
+ ret = anx7411_reg_block_read(ctx->tcpc_client, ALERT_0,
+ STATUS_LEN, buf);
+ if (ret < 0) {
+ dev_err(dev, "failed to read register(%d)\n", ALERT_0);
+ goto unlock;
+ }
+ alert0 = buf[0];
+ alert1 = buf[1];
+
+ /* Clear interrupt and alert status */
+ anx7411_reg_write(ctx->spi_client, INT_STS, 0);
+ anx7411_reg_write(ctx->tcpc_client, ALERT_0, alert0);
+ anx7411_reg_write(ctx->tcpc_client, ALERT_1, alert1);
+
+ dev_info(dev, "int_change(0x%.02x), int_status(0x%.02x).\n",
+ int_change, int_status);
+ dev_info(dev, "alert0(0x%.02x), alert1(0x%.02x).\n", alert0, alert1);
+
+ if (alert1 & INTP_POW_OFF) {
+ anx7411_partner_unregister_altmode(ctx);
+ anx7411_set_usb_role(ctx, USB_ROLE_NONE);
+ anx7411_unregister_partner(ctx);
+ ctx->psy_online = ANX7411_PSY_OFFLINE;
+ ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
+ ctx->typec.request_voltage = 0;
+ ctx->typec.request_current = 0;
+ power_supply_changed(ctx->psy);
+ anx7411_chip_standby(ctx);
+ goto unlock;
+ }
+
+ if ((alert0 & SOFTWARE_INT) && (int_change & OCM_BOOT_UP)) {
+ anx7411_config(ctx);
+ anx7411_data_role_detect(ctx);
+ anx7411_power_role_detect(ctx);
+ anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
+ }
+
+ if (alert0 & RECEIVED_MSG)
+ anx7411_process_cmd(ctx);
+
+ ret = (int_status & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
+ if (ctx->typec.data_role != ret)
+ anx7411_data_role_detect(ctx);
+
+ ret = (int_status & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
+ if (ctx->typec.power_role != ret)
+ anx7411_power_role_detect(ctx);
+
+ if ((alert0 & SOFTWARE_INT) && (int_change & CC_STATUS_CHANGE))
+ anx7411_cc_status_detect(ctx);
+
+unlock:
+ mutex_unlock(&ctx->lock);
+}
+
+static irqreturn_t anx7411_intr_isr(int irq, void *data)
+{
+ struct anx7411_data *ctx = (struct anx7411_data *)data;
+
+ queue_work(ctx->workqueue, &ctx->work);
+
+ return IRQ_HANDLED;
+}
+
+static int anx7411_register_i2c_dummy_clients(struct anx7411_data *ctx,
+ struct i2c_client *client)
+{
+ int i;
+ u8 spi_addr;
+
+ for (i = 0; i < sizeof(anx7411_i2c_addr); i++) {
+ if (client->addr == (anx7411_i2c_addr[i].tcpc_address >> 1)) {
+ spi_addr = anx7411_i2c_addr[i].spi_address >> 1;
+ ctx->spi_client = i2c_new_dummy_device(client->adapter,
+ spi_addr);
+ if (ctx->spi_client) {
+ dev_info(&client->dev, "found spi slave\n");
+ return 0;
+ }
+ }
+ }
+
+ dev_err(&client->dev, "unable to get SPI slave\n");
+ return -ENOMEM;
+}
+
+static void anx7411_port_unregister_altmodes(struct typec_altmode **adev)
+{
+ int i;
+
+ for (i = 0; i < MAX_ALTMODE; i++)
+ if (adev[i]) {
+ typec_unregister_altmode(adev[i]);
+ adev[i] = NULL;
+ }
+}
+
+static int anx7411_usb_mux_set(struct typec_mux *mux,
+ struct typec_mux_state *state)
+{
+ struct anx7411_data *ctx = typec_mux_get_drvdata(mux);
+ struct device *dev = &ctx->spi_client->dev;
+ int has_dp;
+
+ has_dp = (state->alt && state->alt->svid == USB_TYPEC_DP_SID &&
+ state->alt->mode == USB_TYPEC_DP_MODE);
+ dev_info(dev, "callback: mux set: %d", has_dp);
+ if (!has_dp) {
+ dev_info(dev, "dp altmode not register\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+static int anx7411_usb_set_orientation(struct typec_switch *sw,
+ enum typec_orientation orientation)
+{
+ struct anx7411_data *ctx = typec_switch_get_drvdata(sw);
+ struct device *dev = &ctx->spi_client->dev;
+
+ dev_info(dev, "callback: orientation set %d\n", orientation);
+
+ return 0;
+}
+
+static int anx7411_register_switch(struct anx7411_data *ctx,
+ struct device *dev,
+ struct fwnode_handle *fwnode)
+{
+ struct typec_switch_desc sw_desc = { };
+
+ sw_desc.fwnode = fwnode;
+ sw_desc.drvdata = ctx;
+ sw_desc.name = fwnode_get_name(fwnode);
+ sw_desc.set = anx7411_usb_set_orientation;
+
+ ctx->typec.typec_switch = typec_switch_register(dev, &sw_desc);
+ if (IS_ERR(ctx->typec.typec_switch)) {
+ dev_err(dev, "switch register failed\n");
+ return PTR_ERR(ctx->typec.typec_switch);
+ }
+
+ return 0;
+}
+
+static int anx7411_register_mux(struct anx7411_data *ctx,
+ struct device *dev,
+ struct fwnode_handle *fwnode)
+{
+ struct typec_mux_desc mux_desc = { };
+
+ mux_desc.fwnode = fwnode;
+ mux_desc.drvdata = ctx;
+ mux_desc.name = fwnode_get_name(fwnode);
+ mux_desc.set = anx7411_usb_mux_set;
+
+ ctx->typec.typec_mux = typec_mux_register(dev, &mux_desc);
+ if (IS_ERR(ctx->typec.typec_mux)) {
+ dev_err(dev, "mux register failed\n");
+ return PTR_ERR(ctx->typec.typec_mux);
+ }
+
+ return 0;
+}
+
+static void anx7411_unregister_mux(struct anx7411_data *ctx)
+{
+ if (ctx->typec.typec_mux) {
+ typec_mux_unregister(ctx->typec.typec_mux);
+ ctx->typec.typec_mux = NULL;
+ }
+}
+
+static void anx7411_unregister_switch(struct anx7411_data *ctx)
+{
+ if (ctx->typec.typec_switch) {
+ typec_switch_unregister(ctx->typec.typec_switch);
+ ctx->typec.typec_switch = NULL;
+ }
+}
+
+static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
+ struct device *dev)
+{
+ int ret;
+ struct device_node *node;
+
+ node = of_find_node_by_name(dev->of_node, "orientation_switch");
+ if (!node) {
+ dev_info(dev, "no typec switch exist\n");
+ return 0;
+ }
+
+ dev_info(dev, "register switch\n");
+ ret = anx7411_register_switch(ctx, dev, &node->fwnode);
+ if (ret) {
+ dev_err(dev, "failed register switch");
+ return ret;
+ }
+
+ node = of_find_node_by_name(dev->of_node, "mode_switch");
+ if (!node) {
+ dev_err(dev, "no typec mux exist");
+ ret = -ENODEV;
+ goto unregister_switch;
+ }
+
+ dev_info(dev, "register mode switch\n");
+ ret = anx7411_register_mux(ctx, dev, &node->fwnode);
+ if (ret) {
+ dev_err(dev, "failed register mode switch");
+ ret = -ENODEV;
+ goto unregister_switch;
+ }
+
+ return 0;
+
+unregister_switch:
+ anx7411_unregister_switch(ctx);
+
+ return ret;
+}
+
+static int anx7411_typec_port_probe(struct anx7411_data *ctx,
+ struct device *dev)
+{
+ struct typec_capability *cap = &ctx->typec.caps;
+ struct typec_params *typecp = &ctx->typec;
+ struct fwnode_handle *fwnode;
+ const char *buf;
+ int ret, i;
+
+ fwnode = device_get_named_child_node(dev, "connector");
+ if (!fwnode)
+ return -EINVAL;
+
+ ret = fwnode_property_read_string(fwnode, "power-role", &buf);
+ if (ret) {
+ dev_err(dev, "power-role not found: %d\n", ret);
+ return ret;
+ }
+
+ ret = typec_find_port_power_role(buf);
+ if (ret < 0)
+ return ret;
+ cap->type = ret;
+
+ ret = fwnode_property_read_string(fwnode, "data-role", &buf);
+ if (ret) {
+ dev_err(dev, "data-role not found: %d\n", ret);
+ return ret;
+ }
+
+ ret = typec_find_port_data_role(buf);
+ if (ret < 0)
+ return ret;
+ cap->data = ret;
+
+ ret = fwnode_property_read_string(fwnode, "try-power-role", &buf);
+ if (ret) {
+ dev_err(dev, "try-power-role not found: %d\n", ret);
+ return ret;
+ }
+
+ ret = typec_find_power_role(buf);
+ if (ret < 0)
+ return ret;
+ cap->prefer_role = ret;
+
+ /* Get source pdos */
+ ret = fwnode_property_count_u32(fwnode, "source-pdos");
+ if (ret > 0) {
+ dev_info(dev, "%d source-pdos found\n", ret);
+ typecp->src_pdo_nr = min(ret, PDO_MAX_OBJECTS);
+ ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
+ typecp->src_pdo,
+ typecp->src_pdo_nr);
+ if (ret < 0) {
+ dev_err(dev, "source cap validate failed: %d\n", ret);
+ return -EINVAL;
+ }
+
+ typecp->caps_flags |= HAS_SOURCE_CAP;
+ }
+
+ ret = fwnode_property_count_u32(fwnode, "sink-pdos");
+ if (ret > 0) {
+ dev_info(dev, "%d sink-pdos found\n", ret);
+ typecp->sink_pdo_nr = min(ret, PDO_MAX_OBJECTS);
+ ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
+ typecp->sink_pdo,
+ typecp->sink_pdo_nr);
+ if (ret < 0) {
+ dev_err(dev, "sink cap validate failed: %d\n", ret);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < typecp->sink_pdo_nr; i++) {
+ ret = 0;
+ switch (pdo_type(typecp->sink_pdo[i])) {
+ case PDO_TYPE_FIXED:
+ ret = pdo_fixed_voltage(typecp->sink_pdo[i]);
+ break;
+ case PDO_TYPE_BATT:
+ case PDO_TYPE_VAR:
+ ret = pdo_max_voltage(typecp->sink_pdo[i]);
+ break;
+ case PDO_TYPE_APDO:
+ default:
+ ret = 0;
+ break;
+ }
+
+ /* 100mv per unit */
+ typecp->sink_voltage = max(5000, ret) / 100;
+ }
+
+ typecp->caps_flags |= HAS_SINK_CAP;
+ }
+
+ if (!fwnode_property_read_u32(fwnode, "op-sink-microwatt", &ret)) {
+ dev_info(dev, "%d sink-microwat found\n", ret);
+ typecp->sink_watt = ret / 500000; /* 500mw per unit */
+ typecp->caps_flags |= HAS_SINK_WATT;
+ }
+
+ cap->fwnode = fwnode;
+
+ ctx->typec.role_sw = usb_role_switch_get(dev);
+ if (IS_ERR(ctx->typec.role_sw)) {
+ dev_err(dev, "USB role switch not found.\n");
+ ctx->typec.role_sw = NULL;
+ }
+
+ ctx->typec.port = typec_register_port(dev, cap);
+ if (IS_ERR(ctx->typec.port)) {
+ ret = PTR_ERR(ctx->typec.port);
+ ctx->typec.port = NULL;
+ dev_err(dev, "Failed to register type c port %d\n", ret);
+ return ret;
+ }
+
+ typec_port_register_altmodes(ctx->typec.port, NULL, ctx,
+ ctx->typec.port_amode,
+ MAX_ALTMODE);
+
+ return 0;
+}
+
+static int anx7411_typec_check_connection(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->spi_client->dev;
+ int ret;
+
+ ret = anx7411_reg_read(ctx->spi_client, FW_VER);
+ if (ret < 0) {
+ /* No device attached in typec port */
+ dev_info(dev, "no connection detect.\n");
+ return 0;
+ }
+
+ dev_info(dev, "detected typec connected, ocm ver:0x%.02x.\n", ret);
+ dev_info(dev, "force clear interrupt and alert.\n");
+ /* Clear interrupt and alert status */
+ anx7411_reg_write(ctx->spi_client, INT_STS, 0);
+ anx7411_reg_write(ctx->tcpc_client, ALERT_0, 0xFF);
+ anx7411_reg_write(ctx->tcpc_client, ALERT_1, 0xFF);
+
+ anx7411_cc_status_detect(ctx);
+
+ anx7411_power_role_detect(ctx);
+
+ dev_info(dev, "PD %s voltage(%d), current(%d).\n",
+ ctx->typec.power_role == TYPEC_SOURCE ? "supply" : "request",
+ ctx->typec.request_voltage, ctx->typec.request_current);
+
+ anx7411_data_role_detect(ctx);
+
+ anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
+
+ anx7411_send_msg(ctx, TYPE_GET_DP_ALT_ENTER, NULL, 0);
+
+ anx7411_send_msg(ctx, TYPE_GET_DP_DISCOVER_MODES_INFO, NULL, 0);
+
+ return 0;
+}
+
+static int __maybe_unused anx7411_runtime_pm_suspend(struct device *dev)
+{
+ struct anx7411_data *ctx = dev_get_drvdata(dev);
+
+ mutex_lock(&ctx->lock);
+
+ anx7411_partner_unregister_altmode(ctx);
+
+ if (ctx->typec.partner)
+ anx7411_unregister_partner(ctx);
+
+ mutex_unlock(&ctx->lock);
+
+ return 0;
+}
+
+static int __maybe_unused anx7411_runtime_pm_resume(struct device *dev)
+{
+ struct anx7411_data *ctx = dev_get_drvdata(dev);
+
+ mutex_lock(&ctx->lock);
+ /* Detect PD connection */
+ anx7411_typec_check_connection(ctx);
+
+ mutex_unlock(&ctx->lock);
+
+ return 0;
+}
+
+static const struct dev_pm_ops anx7411_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(anx7411_runtime_pm_suspend,
+ anx7411_runtime_pm_resume, NULL)
+};
+
+static void anx7411_get_gpio_irq(struct anx7411_data *ctx)
+{
+ struct device *dev = &ctx->tcpc_client->dev;
+
+ ctx->intp_gpiod = devm_gpiod_get_optional(dev, "interrupt", GPIOD_IN);
+ if (!ctx->intp_gpiod) {
+ dev_info(dev, "no interrupt gpio property\n");
+ return;
+ }
+
+ ctx->intp_irq = gpiod_to_irq(ctx->intp_gpiod);
+ dev_info(dev, "request gpio(%d) irq(%d)\n",
+ desc_to_gpio(ctx->intp_gpiod), ctx->intp_irq);
+
+ if (!ctx->intp_irq)
+ dev_err(dev, "failed to get GPIO IRQ\n");
+}
+
+static const char *anx7411_psy_name_prefix = "anx7411-source-psy-";
+
+static enum power_supply_usb_type anx7411_psy_usb_types[] = {
+ POWER_SUPPLY_USB_TYPE_C,
+ POWER_SUPPLY_USB_TYPE_PD,
+ POWER_SUPPLY_USB_TYPE_PD_PPS,
+};
+
+static enum power_supply_property anx7411_psy_props[] = {
+ POWER_SUPPLY_PROP_USB_TYPE,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static int anx7411_psy_set_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct anx7411_data *ctx = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ if (psp == POWER_SUPPLY_PROP_ONLINE) {
+ pr_info("[DEBUG] set prop -> %d\n", val->intval);
+ ctx->psy_online = val->intval;
+#ifdef CUST_SINK_CTRL_EN
+ if (ctx->psy_online == ANX7411_PSY_HANG)
+ anx7411_reg_write(ctx->tcpc_client,
+ TCPC_COMMAND,
+ SINK_CTRL_DIS);
+ else if (ctx->psy_online)
+ anx7411_reg_write(ctx->tcpc_client,
+ TCPC_COMMAND,
+ SINK_CTRL_EN);
+#endif
+ } else {
+ ret = -EINVAL;
+ }
+
+ power_supply_changed(ctx->psy);
+ return ret;
+}
+
+static int anx7411_psy_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ return (psp == POWER_SUPPLY_PROP_ONLINE) ? 1 : 0;
+}
+
+static int anx7411_psy_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct anx7411_data *ctx = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_USB_TYPE:
+ val->intval = ctx->usb_type;
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = ctx->psy_online;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+ val->intval = (ctx->psy_online) ?
+ ctx->typec.request_voltage * 1000 : 0;
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ val->intval = (ctx->psy_online) ?
+ ctx->typec.request_current * 1000 : 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int anx7411_psy_register(struct anx7411_data *ctx)
+{
+ struct power_supply_config psy_cfg = {};
+ const char *port_dev_name = dev_name(ctx->dev);
+ size_t psy_name_len = strlen(anx7411_psy_name_prefix) +
+ strlen(port_dev_name) + 1;
+ char *psy_name;
+ struct power_supply_desc *psy_desc = &ctx->psy_desc;
+
+ psy_cfg.drv_data = ctx;
+ psy_cfg.fwnode = dev_fwnode(ctx->dev);
+ psy_name = devm_kzalloc(ctx->dev, psy_name_len, GFP_KERNEL);
+ if (!psy_name) {
+ dev_warn(ctx->dev, "unable to alloc psy memory\n");
+ return -ENOMEM;
+ }
+
+ snprintf(psy_name, psy_name_len, "%s%s", anx7411_psy_name_prefix,
+ port_dev_name);
+
+ psy_desc->name = psy_name;
+ psy_desc->type = POWER_SUPPLY_TYPE_USB;
+ psy_desc->usb_types = anx7411_psy_usb_types;
+ psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types);
+ psy_desc->properties = anx7411_psy_props,
+ psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props),
+
+ psy_desc->get_property = anx7411_psy_get_prop,
+ psy_desc->set_property = anx7411_psy_set_prop,
+ psy_desc->property_is_writeable = anx7411_psy_prop_writeable,
+
+ ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
+ ctx->psy = devm_power_supply_register(ctx->dev, psy_desc, &psy_cfg);
+
+ if (IS_ERR(ctx->psy))
+ dev_warn(ctx->dev, "unable to register psy\n");
+
+ return PTR_ERR_OR_ZERO(ctx->psy);
+}
+
+static int anx7411_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct anx7411_data *plat;
+ struct device *dev = &client->dev;
+ int ret;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
+ return -ENODEV;
+
+ plat = kzalloc(sizeof(*plat), GFP_KERNEL);
+ if (!plat)
+ return -ENOMEM;
+
+ plat->tcpc_client = client;
+ i2c_set_clientdata(client, plat);
+
+ mutex_init(&plat->lock);
+
+ ret = anx7411_register_i2c_dummy_clients(plat, client);
+ if (ret) {
+ dev_err(dev, "fail to reserve I2C bus\n");
+ return ret;
+ }
+
+ ret = anx7411_typec_switch_probe(plat, dev);
+ if (ret) {
+ dev_err(dev, "fail to probe typec switch\n");
+ goto free_i2c_dummy;
+ }
+
+ ret = anx7411_typec_port_probe(plat, dev);
+ if (ret) {
+ dev_err(dev, "fail to probe typec property.\n");
+ ret = -ENODEV;
+ goto free_typec_switch;
+ }
+
+ plat->intp_irq = client->irq;
+ if (!client->irq) {
+ dev_info(dev, "no default interrupt IRQ, probe GPIO interrupt");
+ anx7411_get_gpio_irq(plat);
+ }
+
+ if (!plat->intp_irq) {
+ dev_err(dev, "fail to get interrupt IRQ\n");
+ goto free_typec_port;
+ }
+
+ plat->dev = dev;
+ plat->psy_online = ANX7411_PSY_OFFLINE;
+ anx7411_psy_register(plat);
+
+ if (plat->intp_irq) {
+ INIT_WORK(&plat->work, anx7411_work_func);
+ plat->workqueue = alloc_workqueue("anx7411_work",
+ WQ_FREEZABLE |
+ WQ_MEM_RECLAIM,
+ 1);
+ if (!plat->workqueue) {
+ dev_err(dev, "fail to create work queue\n");
+ ret = -ENOMEM;
+ goto free_typec_port;
+ }
+
+ ret = devm_request_threaded_irq(dev, plat->intp_irq,
+ NULL, anx7411_intr_isr,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ "anx7411-intp", plat);
+ if (ret) {
+ dev_err(dev, "fail to request irq\n");
+ goto free_wq;
+ }
+
+ dev_info(dev, "registered irq %d handler\n", plat->intp_irq);
+ }
+
+ anx7411_typec_check_connection(plat);
+
+ pm_runtime_enable(dev);
+
+ return 0;
+
+free_wq:
+ destroy_workqueue(plat->workqueue);
+
+free_typec_port:
+ typec_unregister_port(plat->typec.port);
+ anx7411_port_unregister_altmodes(plat->typec.port_amode);
+
+free_typec_switch:
+ anx7411_unregister_switch(plat);
+ anx7411_unregister_mux(plat);
+
+free_i2c_dummy:
+ i2c_unregister_device(plat->spi_client);
+
+ return ret;
+}
+
+static int anx7411_i2c_remove(struct i2c_client *client)
+{
+ struct anx7411_data *plat = i2c_get_clientdata(client);
+
+ anx7411_partner_unregister_altmode(plat);
+ anx7411_unregister_partner(plat);
+
+ if (plat->workqueue)
+ destroy_workqueue(plat->workqueue);
+
+ if (plat->spi_client)
+ i2c_unregister_device(plat->spi_client);
+
+ if (plat->typec.role_sw)
+ usb_role_switch_put(plat->typec.role_sw);
+
+ anx7411_unregister_mux(plat);
+
+ anx7411_unregister_switch(plat);
+
+ if (plat->typec.port)
+ typec_unregister_port(plat->typec.port);
+
+ anx7411_port_unregister_altmodes(plat->typec.port_amode);
+
+ return 0;
+}
+
+static const struct i2c_device_id anx7411_id[] = {
+ {"anx7411", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, anx7411_id);
+
+static const struct of_device_id anx_match_table[] = {
+ {.compatible = "analogix,anx7411",},
+ {},
+};
+
+static struct i2c_driver anx7411_driver = {
+ .driver = {
+ .name = "anx7411",
+ .of_match_table = anx_match_table,
+ .pm = &anx7411_pm_ops,
+ },
+ .probe = anx7411_i2c_probe,
+ .remove = anx7411_i2c_remove,
+
+ .id_table = anx7411_id,
+};
+
+module_i2c_driver(anx7411_driver);
+
+MODULE_DESCRIPTION("Anx7411 USB Type-C PD driver");
+MODULE_AUTHOR("Xin Ji <[email protected]>");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("0.1.4");
diff --git a/drivers/usb/typec/anx7411.h b/drivers/usb/typec/anx7411.h
new file mode 100644
index 000000000000..97bd670a4d0c
--- /dev/null
+++ b/drivers/usb/typec/anx7411.h
@@ -0,0 +1,271 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * Copyright(c) 2022, Analogix Semiconductor. All rights reserved.
+ *
+ */
+
+#ifndef __ANX7411_H__
+#define __ANX7411_H__
+
+#define TCPC_ADDRESS1 0x58
+#define TCPC_ADDRESS2 0x56
+#define TCPC_ADDRESS3 0x54
+#define TCPC_ADDRESS4 0x52
+#define SPI_ADDRESS1 0x7e
+#define SPI_ADDRESS2 0x6e
+#define SPI_ADDRESS3 0x64
+#define SPI_ADDRESS4 0x62
+
+struct anx7411_i2c_select {
+ u8 tcpc_address;
+ u8 spi_address;
+};
+
+#define VENDOR_ID 0x1F29
+#define PRODUCT_ID 0x7411
+
+/* TCPC register define */
+
+#define TCPC_ROLE_CONTROL 0x1A
+
+#define TCPC_COMMAND 0x23
+#define SINK_CTRL_EN 0x55
+#define SINK_CTRL_DIS 0x44
+
+#define ANALOG_CTRL_10 0xAA
+
+#define STATUS_LEN 2
+#define ALERT_0 0xCB
+#define RECEIVED_MSG BIT(7)
+#define SOFTWARE_INT BIT(6)
+#define MSG_LEN 32
+#define HEADER_LEN 2
+#define MSG_HEADER 0x00
+#define MSG_TYPE 0x01
+#define MSG_RAWDATA 0x02
+#define MSG_LEN_MASK 0x1F
+
+#define ALERT_1 0xCC
+#define INTP_POW_ON BIT(7)
+#define INTP_POW_OFF BIT(6)
+
+#define VBUS_THRESHOLD_H 0xDD
+#define VBUS_THRESHOLD_L 0xDE
+
+#define FW_CTRL_0 0xF0
+#define UNSTRUCT_VDM_EN BIT(0)
+#define DELAY_200MS BIT(1)
+#define VSAFE0 0
+#define VSAFE1 BIT(2)
+#define VSAFE2 BIT(3)
+#define VSAFE3 (BIT(2) | BIT(3))
+#define FRS_EN BIT(7)
+
+#define FW_PARAM 0xF1
+#define DONGLE_IOP BIT(0)
+
+#define FW_CTRL_2 0xF7
+#define SINK_CTRL_DIS_FLAG BIT(5)
+
+/* SPI register define */
+#define OCM_CTRL_0 0x6E
+#define OCM_RESET BIT(6)
+
+#define MAX_VOLTAGE 0xAC
+#define MAX_POWER 0xAD
+#define MIN_POWER 0xAE
+
+#define REQUEST_VOLTAGE 0xAF
+#define VOLTAGE_UNIT 100 /* mV per unit */
+
+#define REQUEST_CURRENT 0xB1
+#define CURRENT_UNIT 50 /* mA per unit */
+
+#define CMD_SEND_BUF 0xC0
+#define CMD_RECV_BUF 0xE0
+
+#define REQ_VOL_20V_IN_100MV 0xC8
+#define REQ_CUR_2_25A_IN_50MA 0x2D
+#define REQ_CUR_3_25A_IN_50MA 0x41
+
+#define DEF_5V 5000
+#define DEF_1_5A 1500
+
+enum anx7411_typec_message_type {
+ TYPE_SRC_CAP = 0x00,
+ TYPE_SNK_CAP = 0x01,
+ TYPE_SNK_IDENTITY = 0x02,
+ TYPE_SVID = 0x03,
+ TYPE_SET_SNK_DP_CAP = 0x08,
+ TYPE_PSWAP_REQ = 0x10,
+ TYPE_DSWAP_REQ = 0x11,
+ TYPE_VDM = 0x14,
+ TYPE_OBJ_REQ = 0x16,
+ TYPE_DP_ALT_ENTER = 0x19,
+ TYPE_DP_DISCOVER_MODES_INFO = 0x27,
+ TYPE_GET_DP_CONFIG = 0x29,
+ TYPE_DP_CONFIGURE = 0x2A,
+ TYPE_GET_DP_DISCOVER_MODES_INFO = 0x2E,
+ TYPE_GET_DP_ALT_ENTER = 0x2F,
+};
+
+#define REQUEST_CURRENT 0xB1
+#define REQUEST_VOLTAGE 0xAF
+
+#define FW_CTRL_1 0xB2
+#define AUTO_PD_EN BIT(1)
+#define TRYSRC_EN BIT(2)
+#define TRYSNK_EN BIT(3)
+#define FORCE_SEND_RDO BIT(6)
+
+#define FW_VER 0xB4
+#define FW_SUBVER 0xB5
+
+#define INT_MASK 0xB6
+#define INT_STS 0xB7
+#define OCM_BOOT_UP BIT(0)
+#define OC_OV_EVENT BIT(1)
+#define VCONN_CHANGE BIT(2)
+#define VBUS_CHANGE BIT(3)
+#define CC_STATUS_CHANGE BIT(4)
+#define DATA_ROLE_CHANGE BIT(5)
+#define PR_CONSUMER_GOT_POWER BIT(6)
+#define HPD_STATUS_CHANGE BIT(7)
+
+#define SYSTEM_STSTUS 0xB8
+/* 0: SINK off; 1: SINK on */
+#define SINK_STATUS BIT(1)
+/* 0: VCONN off; 1: VCONN on*/
+#define VCONN_STATUS BIT(2)
+/* 0: vbus off; 1: vbus on*/
+#define VBUS_STATUS BIT(3)
+/* 1: host; 0:device*/
+#define DATA_ROLE BIT(5)
+/* 0: Chunking; 1: Unchunked*/
+#define SUPPORT_UNCHUNKING BIT(6)
+/* 0: HPD low; 1: HPD high*/
+#define HPD_STATUS BIT(7)
+
+#define DATA_DFP 1
+#define DATA_UFP 2
+#define POWER_SOURCE 1
+#define POWER_SINK 2
+
+#define CC_STATUS 0xB9
+#define CC1_RD BIT(0)
+#define CC2_RD BIT(4)
+#define CC1_RA BIT(1)
+#define CC2_RA BIT(5)
+#define CC1_RD BIT(0)
+#define CC1_RP(cc) (((cc) >> 2) & 0x03)
+#define CC2_RP(cc) (((cc) >> 6) & 0x03)
+
+#define PD_REV_INIT 0xBA
+
+#define PD_EXT_MSG_CTRL 0xBB
+#define SRC_CAP_EXT_REPLY BIT(0)
+#define MANUFACTURER_INFO_REPLY BIT(1)
+#define BATTERY_STS_REPLY BIT(2)
+#define BATTERY_CAP_REPLY BIT(3)
+#define ALERT_REPLY BIT(4)
+#define STATUS_REPLY BIT(5)
+#define PPS_STATUS_REPLY BIT(6)
+#define SNK_CAP_EXT_REPLY BIT(7)
+
+#define NO_CONNECT 0x00
+#define USB3_1_CONNECTED 0x01
+#define DP_ALT_4LANES 0x02
+#define USB3_1_DP_2LANES 0x03
+#define CC1_CONNECTED 0x01
+#define CC2_CONNECTED 0x02
+#define SELECT_PIN_ASSIGMENT_C 0x04
+#define SELECT_PIN_ASSIGMENT_D 0x08
+#define SELECT_PIN_ASSIGMENT_E 0x10
+#define SELECT_PIN_ASSIGMENT_U 0x00
+#define REDRIVER_ADDRESS 0x20
+#define REDRIVER_OFFSET 0x00
+
+#define DP_SVID 0xFF01
+#define VDM_ACK 0x40
+#define VDM_CMD_RES 0x00
+#define VDM_CMD_DIS_ID 0x01
+#define VDM_CMD_DIS_SVID 0x02
+#define VDM_CMD_DIS_MOD 0x03
+#define VDM_CMD_ENTER_MODE 0x04
+#define VDM_CMD_EXIT_MODE 0x05
+#define VDM_CMD_ATTENTION 0x06
+#define VDM_CMD_GET_STS 0x10
+#define VDM_CMD_AND_ACK_MASK 0x5F
+
+#define MAX_ALTMODE 2
+
+#define HAS_SOURCE_CAP BIT(0)
+#define HAS_SINK_CAP BIT(1)
+#define HAS_SINK_WATT BIT(2)
+
+enum anx7411_psy_state {
+ /* copy from drivers/usb/typec/tcpm */
+ ANX7411_PSY_OFFLINE = 0,
+ ANX7411_PSY_FIXED_ONLINE,
+
+ /* private */
+ /* PD keep in, but disconnct power to bq25700,
+ * this state can be active when higher capacity adapter plug in,
+ * and change to ONLINE state when higher capacity adapter plug out
+ */
+ ANX7411_PSY_HANG = 0xff,
+};
+
+struct typec_params {
+ int request_current; /* ma */
+ int request_voltage; /* mv */
+ int cc_connect;
+ int cc_orientation_valid;
+ int cc_status;
+ int data_role;
+ int power_role;
+ int vconn_role;
+ int dp_altmode_enter;
+ int cust_altmode_enter;
+ struct usb_role_switch *role_sw;
+ struct typec_port *port;
+ struct typec_partner *partner;
+ struct typec_mux *typec_mux;
+ struct typec_switch *typec_switch;
+ struct typec_altmode *amode[MAX_ALTMODE];
+ struct typec_altmode *port_amode[MAX_ALTMODE];
+ struct typec_displayport_data data;
+ int pin_assignment;
+ struct typec_capability caps;
+ u32 src_pdo[PDO_MAX_OBJECTS];
+ u32 sink_pdo[PDO_MAX_OBJECTS];
+ u8 caps_flags;
+ u8 src_pdo_nr;
+ u8 sink_pdo_nr;
+ u8 sink_watt;
+ u8 sink_voltage;
+};
+
+struct anx7411_data {
+ int fw_version;
+ int fw_subversion;
+ struct i2c_client *tcpc_client;
+ struct i2c_client *spi_client;
+ struct gpio_desc *intp_gpiod;
+ struct fwnode_handle *connector_fwnode;
+ struct typec_params typec;
+ int intp_irq;
+ struct work_struct work;
+ struct workqueue_struct *workqueue;
+ /* Lock for interrupt work queue */
+ struct mutex lock;
+
+ enum anx7411_psy_state psy_online;
+ enum power_supply_usb_type usb_type;
+ struct power_supply *psy;
+ struct power_supply_desc psy_desc;
+ struct device *dev;
+};
+
+#endif /* __ANX7411_H__ */
--
2.25.1
On Tue, Feb 08, 2022 at 05:16:21PM +0800, Xin Ji wrote:
> Add driver for analogix ANX7411 USB Type-C DRP port controller.
We already have the driver drivers/usb/typec/tcpm/tcpci.c for port
controllers.
If you need a glue layer - if there is something specific that you
need to do with ANX7411 that is not completely TCPC compliant - use
drivers/usb/typec/tcpm/tcpci_*.c as examples.
thanks,
--
heikki
On Wed, Feb 09, 2022 at 03:31:26PM +0200, Heikki Krogerus wrote:
> On Tue, Feb 08, 2022 at 05:16:21PM +0800, Xin Ji wrote:
> > Add driver for analogix ANX7411 USB Type-C DRP port controller.
>
> We already have the driver drivers/usb/typec/tcpm/tcpci.c for port
> controllers.
>
> If you need a glue layer - if there is something specific that you
> need to do with ANX7411 that is not completely TCPC compliant - use
> drivers/usb/typec/tcpm/tcpci_*.c as examples.
Hi heikki, ANX7411 PD controller has 2 applications, the one has embeded
internal firmware, the other is not have. The currently upstream patch
is for the first way, driver mustn't use TCPCI framework(embeded firmware
will control all the TCPCI register). The second way(erased internaly
firmware) can work under TCPCI framework.
Thanks,
Xin
>
> thanks,
>
> --
> heikki
On Tue, Feb 15, 2022 at 01:43:00PM +0800, Xin Ji wrote:
> On Wed, Feb 09, 2022 at 03:31:26PM +0200, Heikki Krogerus wrote:
> > On Tue, Feb 08, 2022 at 05:16:21PM +0800, Xin Ji wrote:
> > > Add driver for analogix ANX7411 USB Type-C DRP port controller.
> >
> > We already have the driver drivers/usb/typec/tcpm/tcpci.c for port
> > controllers.
> >
> > If you need a glue layer - if there is something specific that you
> > need to do with ANX7411 that is not completely TCPC compliant - use
> > drivers/usb/typec/tcpm/tcpci_*.c as examples.
> Hi heikki, ANX7411 PD controller has 2 applications, the one has embeded
> internal firmware, the other is not have. The currently upstream patch
> is for the first way, driver mustn't use TCPCI framework(embeded firmware
> will control all the TCPCI register). The second way(erased internaly
> firmware) can work under TCPCI framework.
Ah, so it has a microcontroller. Fair enough. I'll take another
look at your patch.
thanks,
--
heikki
Hi,
Where is patch 1/2 ?
On Tue, Feb 08, 2022 at 05:16:21PM +0800, Xin Ji wrote:
> Add driver for analogix ANX7411 USB Type-C DRP port controller.
>
> Signed-off-by: Xin Ji <[email protected]>
>
> ---
> V4 -> V5: Fix Greg h-k comment, remove DEBUG define
> V3 -> V4: Fix compiling waring
> V2 -> V3: Add changelog history
> V1 -> V2: Fix compiling warning issue
> ---
> drivers/usb/typec/Kconfig | 11 +
> drivers/usb/typec/Makefile | 1 +
> drivers/usb/typec/anx7411.c | 1471 +++++++++++++++++++++++++++++++++++
> drivers/usb/typec/anx7411.h | 271 +++++++
> 4 files changed, 1754 insertions(+)
> create mode 100644 drivers/usb/typec/anx7411.c
> create mode 100644 drivers/usb/typec/anx7411.h
>
> diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
> index ab480f38523a..615183f46405 100644
> --- a/drivers/usb/typec/Kconfig
> +++ b/drivers/usb/typec/Kconfig
> @@ -52,6 +52,17 @@ source "drivers/usb/typec/ucsi/Kconfig"
>
> source "drivers/usb/typec/tipd/Kconfig"
>
> +config TYPEC_ANX7411
> + tristate "Analogix ANX7411 Type-C DRP Port controller driver"
> + depends on I2C
> + depends on USB_ROLE_SWITCH
> + help
> + Say Y or M here if your system has Analogix ANX7411 Type-C DRP Port
> + controller driver.
> +
> + If you choose to build this driver as a dynamically linked module, the
> + module will be called anx7411.ko.
> +
> config TYPEC_HD3SS3220
> tristate "TI HD3SS3220 Type-C DRP Port controller driver"
> depends on I2C
> diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
> index a0adb8947a30..f4e7188f174a 100644
> --- a/drivers/usb/typec/Makefile
> +++ b/drivers/usb/typec/Makefile
> @@ -5,6 +5,7 @@ obj-$(CONFIG_TYPEC) += altmodes/
> obj-$(CONFIG_TYPEC_TCPM) += tcpm/
> obj-$(CONFIG_TYPEC_UCSI) += ucsi/
> obj-$(CONFIG_TYPEC_TPS6598X) += tipd/
> +obj-$(CONFIG_TYPEC_ANX7411) += anx7411.o
> obj-$(CONFIG_TYPEC_HD3SS3220) += hd3ss3220.o
> obj-$(CONFIG_TYPEC_QCOM_PMIC) += qcom-pmic-typec.o
> obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o
> diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
> new file mode 100644
> index 000000000000..fb9adda037b5
> --- /dev/null
> +++ b/drivers/usb/typec/anx7411.c
> @@ -0,0 +1,1471 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +
> +/*
> + * Copyright(c) 2022, Analogix Semiconductor. All rights reserved.
> + *
> + */
> +#include <linux/gcd.h>
Do you actually need that?
> +#include <linux/gpio/consumer.h>
> +#include <linux/i2c.h>
> +#include <linux/interrupt.h>
> +#include <linux/iopoll.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/of_gpio.h>
And that?
> +#include <linux/of_graph.h>
> +#include <linux/of_platform.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/slab.h>
> +#include <linux/types.h>
> +#include <linux/usb/pd.h>
> +#include <linux/usb/role.h>
> +#include <linux/usb/typec.h>
> +#include <linux/usb/typec_dp.h>
> +#include <linux/usb/typec_mux.h>
> +#include <linux/workqueue.h>
> +#include <linux/power_supply.h>
> +
> +#include "anx7411.h"
> +
> +static u8 snk_identity[] = {
> + VENDOR_ID & 0xFF, (VENDOR_ID >> 8) & 0xFF, 0x00, 0x82, /* snk_id_hdr */
> + 0x00, 0x00, 0x00, 0x00, /* snk_cert */
> + 0x00, 0x00, PRODUCT_ID & 0xFF, (PRODUCT_ID >> 8) & 0xFF,/* 5snk_ama */
> +};
Hardcoded identity? I would have really expected that the firmware
provides that thing.
In any case, use the helpers from include/linux/usb/pd_vdo.h to fill
that thing.
> +static u8 dp_caps[4] = {0xC6, 0x00, 0x00, 0x00};
What is that?
> +static int anx7411_reg_read(struct i2c_client *client,
> + u8 reg_addr)
> +{
> + return i2c_smbus_read_byte_data(client, reg_addr);
> +}
> +
> +static int anx7411_reg_block_read(struct i2c_client *client,
> + u8 reg_addr, u8 len, u8 *buf)
> +{
> + return i2c_smbus_read_i2c_block_data(client, reg_addr, len, buf);
> +}
> +
> +static int anx7411_reg_write(struct i2c_client *client,
> + u8 reg_addr, u8 reg_val)
> +{
> + return i2c_smbus_write_byte_data(client, reg_addr, reg_val);
> +}
> +
> +static int anx7411_reg_block_write(struct i2c_client *client,
> + u8 reg_addr, u8 len, u8 *buf)
> +{
> + return i2c_smbus_write_i2c_block_data(client, reg_addr, len, buf);
> +}
> +
> +static struct anx7411_i2c_select anx7411_i2c_addr[] = {
> + {TCPC_ADDRESS1, SPI_ADDRESS1},
> + {TCPC_ADDRESS2, SPI_ADDRESS2},
> + {TCPC_ADDRESS3, SPI_ADDRESS3},
> + {TCPC_ADDRESS4, SPI_ADDRESS4},
> +};
What are those?
> +static int anx7411_detect_power_mode(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
spi_client ?
> + int ret;
> + int mode;
> +
> + ret = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
> + if (ret < 0) {
> + dev_info(dev, "failed to read request current.\n");
dev_err()?
> + return ret;
> + }
> + ctx->typec.request_current = ret * CURRENT_UNIT; /* 50ma per unit */
> +
> + ret = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
> + if (ret < 0) {
> + dev_info(dev, "failed to read voltage.\n");
Ditto.
> + return ret;
> + }
> + ctx->typec.request_voltage = ret * VOLTAGE_UNIT; /* 100mv per unit */
> +
> + if (ctx->psy_online == ANX7411_PSY_OFFLINE) {
> + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> + power_supply_changed(ctx->psy);
> + }
> +
> + if (!ctx->typec.cc_orientation_valid) {
> + dev_info(dev, "cc orientation is 0(debug cable plug in).\n");
That is just noise.
What does cc_orientation_valid mean here? If it's just indicating is
the connector in accessory mode, then why not name it like that?
> + return 0;
> + }
> +
> + if (ctx->typec.cc_connect == CC1_CONNECTED)
> + mode = CC1_RP(ctx->typec.cc_status);
> + else
> + mode = CC2_RP(ctx->typec.cc_status);
> + if (mode) {
> + dev_info(dev, "set power opmode as %d.\n", mode - 1);
More noise.
> + typec_set_pwr_opmode(ctx->typec.port, mode - 1);
> + return 0;
> + }
> +
> + typec_set_pwr_opmode(ctx->typec.port, TYPEC_PWR_MODE_PD);
> +
> + return 0;
> +}
> +
> +static int anx7411_register_partner(struct anx7411_data *ctx,
> + int pd, int accessory)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + struct typec_partner_desc desc;
> +
> + if (ctx->typec.partner) {
> + dev_info(dev, "ignore register typec partner request.\n");
Noise.
> + return 0;
> + }
> +
> + dev_info(dev, "register typec partner port.\n");
Noise.
> + desc.usb_pd = pd;
> + desc.accessory = accessory;
> + desc.identity = NULL;
> + ctx->typec.partner = typec_register_partner(ctx->typec.port, &desc);
> + if (IS_ERR(ctx->typec.partner)) {
> + dev_err(dev, "failed to register partner\n");
> + ctx->typec.partner = NULL;
> + return PTR_ERR(ctx->typec.partner);
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_detect_cc_orientation(struct anx7411_data *ctx)
> +{
> + int ret;
> + int cc1_rd, cc2_rd;
> + int cc1_ra, cc2_ra;
> + int cc1_rp, cc2_rp;
> + struct device *dev = &ctx->spi_client->dev;
> +
> + ret = anx7411_reg_read(ctx->spi_client, CC_STATUS);
> + if (ret < 0) {
> + dev_info(dev, "failed to read cc status.\n");
dev_err().
> + return ret;
> + }
> +
> + dev_info(dev, "cc status %.02x\n", ret);
Noise.
> + ctx->typec.cc_status = ret;
> +
> + cc1_rd = ret & CC1_RD ? 1 : 0;
> + cc2_rd = ret & CC2_RD ? 1 : 0;
> + cc1_ra = ret & CC1_RA ? 1 : 0;
> + cc2_ra = ret & CC2_RA ? 1 : 0;
Do you need all of those here?
cc_rd = !!((ret & CC1_RD) || (ret & CC2_RD))
cc_ra = !!((ret & CC1_RA) || (ret & CC2_RA))
> + cc1_rp = CC1_RP(ret);
> + cc2_rp = CC2_RP(ret);
> +
> + /* Debug cable, nothing to do */
> + if (cc1_rd && cc2_rd) {
> + ctx->typec.cc_orientation_valid = 0;
> + anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_DEBUG);
> + return 0;
> + }
> +
> + if (cc1_ra && cc2_ra) {
> + ctx->typec.cc_orientation_valid = 0;
> + anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_AUDIO);
> + return 0;
> + }
> +
> + ctx->typec.cc_orientation_valid = 1;
> +
> + anx7411_register_partner(ctx, 1, TYPEC_ACCESSORY_NONE);
> +
> + if (cc1_rd || cc1_rp) {
> + dev_info(dev, "set orientation to normal\n");
Noise.
> + typec_set_orientation(ctx->typec.port,
> + TYPEC_ORIENTATION_NORMAL);
> + ctx->typec.cc_connect = CC1_CONNECTED;
> + }
> +
> + if (cc2_rd || cc2_rp) {
> + dev_info(dev, "set orientation to reverse\n");
Noise.
> + typec_set_orientation(ctx->typec.port,
> + TYPEC_ORIENTATION_REVERSE);
> + ctx->typec.cc_connect = CC2_CONNECTED;
> + }
> +
> + dev_info(dev, "cc1_rp(%d), cc2_rp(%d)", cc1_rp, cc2_rp);
> + dev_info(dev, "\tcc1_rd(%d), cc2_rd(%d), cc_connected(%d).\n",
> + cc1_rd, cc2_rd, ctx->typec.cc_connect);
Noise!
I'll stop commenting on the dev_info() lines. You need to drop
all of them.
> + return 0;
> +}
> +
> +static int anx7411_set_mux(struct anx7411_data *ctx, int pin_assignment)
> +{
> + int mode = TYPEC_STATE_SAFE;
> + struct device *dev = &ctx->spi_client->dev;
> +
> + switch (pin_assignment) {
> + case SELECT_PIN_ASSIGMENT_U:
> + /* default 4 line USB 3.1 */
> + mode = TYPEC_STATE_MODAL;
> + break;
> + case SELECT_PIN_ASSIGMENT_C:
> + case SELECT_PIN_ASSIGMENT_E:
> + /* 4 line DP */
> + mode = TYPEC_STATE_SAFE;
> + break;
> + case SELECT_PIN_ASSIGMENT_D:
> + /* 2 line DP, 2 line USB */
> + mode = TYPEC_MODE_USB3;
> + break;
> + default:
> + mode = TYPEC_STATE_SAFE;
> + break;
> + }
> +
> + ctx->typec.pin_assignment = pin_assignment;
> +
> + dev_info(dev, "pin assignment %d, mux mode %d.\n",
> + pin_assignment, mode);
> +
> + return typec_set_mode(ctx->typec.port, mode);
> +}
> +
> +static void anx7411_set_usb_role(struct anx7411_data *ctx, enum usb_role role)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> +
> + if (!ctx->typec.role_sw) {
> + dev_info(dev, "no usb role switch");
> + return;
> + }
> +
> + usb_role_switch_set_role(ctx->typec.role_sw, role);
> +}
> +
> +static int anx7411_data_role_detect(struct anx7411_data *ctx)
> +{
> + int ret;
> + struct device *dev = &ctx->spi_client->dev;
> +
> + ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
> + if (ret < 0) {
> + dev_err(dev, "read system status failed: %d.\n", ret);
> + return ret;
> + }
> +
> + ctx->typec.data_role = (ret & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
> + ctx->typec.vconn_role = (ret & VCONN_STATUS) ? TYPEC_SOURCE : TYPEC_SINK;
> +
> + typec_set_data_role(ctx->typec.port, ctx->typec.data_role);
> + typec_set_vconn_role(ctx->typec.port, ctx->typec.vconn_role);
> +
> + if (ctx->typec.data_role == TYPEC_HOST)
> + anx7411_set_usb_role(ctx, USB_ROLE_HOST);
> + else
> + anx7411_set_usb_role(ctx, USB_ROLE_DEVICE);
> +
> + dev_info(dev, "data role change, status(0x%.02x), data role(%d)\n",
> + ret, ctx->typec.data_role);
> +
> + return 0;
> +}
> +
> +static int anx7411_power_role_detect(struct anx7411_data *ctx)
> +{
> + int ret;
> + struct device *dev = &ctx->spi_client->dev;
> +
> + ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
> + if (ret < 0) {
> + dev_err(dev, "read system status failed: %d.\n", ret);
> + return ret;
> + }
> +
> + ctx->typec.power_role = (ret & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
> +
> + if (ctx->typec.power_role == TYPEC_SOURCE) {
> + ctx->typec.request_current = DEF_1_5A;
> + ctx->typec.request_voltage = DEF_5V;
> + }
> +
> + dev_info(dev, "power role change, status(0x%.02x), power role(%d).\n",
> + ret, ctx->typec.power_role);
> + typec_set_pwr_role(ctx->typec.port, ctx->typec.power_role);
> +
> + return 0;
> +}
> +
> +static int anx7411_cc_status_detect(struct anx7411_data *ctx)
> +{
> + anx7411_detect_cc_orientation(ctx);
> + anx7411_detect_power_mode(ctx);
> +
> + return 0;
> +}
> +
> +static int anx7411_partner_unregister_altmode(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + int i;
> +
> + dev_info(dev, "unregister typec altmode.\n");
> +
> + ctx->typec.dp_altmode_enter = 0;
> + ctx->typec.cust_altmode_enter = 0;
> +
> + for (i = 0; i < MAX_ALTMODE; i++)
> + if (ctx->typec.amode[i]) {
> + typec_unregister_altmode(ctx->typec.amode[i]);
> + ctx->typec.amode[i] = NULL;
> + }
> +
> + ctx->typec.pin_assignment = 0;
> + return 0;
> +}
> +
> +static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
> + int svid, int vdo)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + struct typec_altmode_desc desc;
> + int i;
> +
> + dev_info(dev, "register typec altmode -> vdo = 0x%x.\n", vdo);
> + desc.svid = svid;
> + desc.vdo = vdo;
> +
> + for (i = 0; i < MAX_ALTMODE; i++)
> + if (!ctx->typec.amode[i])
> + break;
> +
> + desc.mode = i + 1; /* start with 1 */
> +
> + if (i >= MAX_ALTMODE) {
> + dev_info(dev, "no altmode space for registering\n");
> + return -ENOMEM;
> + }
> +
> + ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner,
> + &desc);
> + if (IS_ERR(ctx->typec.amode[i])) {
> + dev_err(dev, "failed to register altmode\n");
> + ctx->typec.amode[i] = NULL;
> + return PTR_ERR(ctx->typec.amode);
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_unregister_partner(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> +
> + dev_info(dev, "unregister typec partner port.\n");
> + if (ctx->typec.partner) {
> + typec_unregister_partner(ctx->typec.partner);
> + ctx->typec.partner = NULL;
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_update_altmode(struct anx7411_data *ctx, int svid)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + int i;
> +
> + dev_info(dev, "update typec altmode to true.\n");
> +
> + if (svid == DP_SVID)
> + ctx->typec.dp_altmode_enter = 1;
> + else
> + ctx->typec.cust_altmode_enter = 1;
> +
> + for (i = 0; i < MAX_ALTMODE; i++) {
> + if (!ctx->typec.amode[i])
> + continue;
> +
> + if (ctx->typec.amode[i]->svid == svid) {
> + typec_altmode_update_active(ctx->typec.amode[i], true);
> + typec_altmode_notify(ctx->typec.amode[i],
> + ctx->typec.pin_assignment,
> + &ctx->typec.data);
> + break;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_register_altmode(struct anx7411_data *ctx,
> + bool dp_altmode, u8 *buf)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + int ret;
> + int svid;
> + int mid;
> +
> + if (!ctx->typec.partner) {
> + dev_info(dev, "partner not register yet, ignore altmode(%d)\n",
> + dp_altmode);
> + return 0;
> + }
> +
> + svid = DP_SVID;
> + if (dp_altmode) {
> + dev_info(dev, "register DP altmode\n");
> + mid = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
> +
> + return anx7411_typec_register_altmode(ctx, svid, mid);
> + }
> +
> + svid = (buf[3] << 8) | buf[2];
> + if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_ENTER_MODE)) {
> + dev_info(dev, "svid(0x%x) enter mode\n", svid);
> + return anx7411_update_altmode(ctx, svid);
> + }
> +
> + if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_DIS_MOD)) {
> + dev_info(dev, "ignore VDM message 0x%.02x%.02x\n",
> + buf[0], buf[1]);
> + return 0;
> + }
> +
> + mid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24);
> +
> + ret = anx7411_typec_register_altmode(ctx, svid, mid);
> + if (ctx->typec.cust_altmode_enter)
> + ret |= anx7411_update_altmode(ctx, svid);
> +
> + return ret;
> +}
> +
> +static int anx7411_parse_cmd(struct anx7411_data *ctx, u8 type, u8 *buf, u8 len)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + u8 cur_50ma, vol_100mv;
> +
> + dev_info(dev, "received message: type:0x%.02x, len:%d, buf[0]:%d\n",
> + type, len, buf[0]);
> +
> + switch (type) {
> + case TYPE_SRC_CAP:
> + cur_50ma = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
> + vol_100mv = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
> + dev_info(dev, "get current(%dma), voltage(%dmv), power(%dmw)\n",
> + cur_50ma * CURRENT_UNIT, vol_100mv * VOLTAGE_UNIT,
> + cur_50ma * vol_100mv * 5);
> +
> + ctx->typec.request_voltage = vol_100mv * VOLTAGE_UNIT;
> + ctx->typec.request_current = cur_50ma * CURRENT_UNIT;
> +
> +#ifndef CUST_SINK_CTRL_EN
> + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> + power_supply_changed(ctx->psy);
I can not find that definition anywhere, which means this is dead
block. Please drop this code, and the ifdef with it. Do the same for
the other places where use the definition too.
> +#else
> + /* Enable OCM automatically control sink_ctrl pin*/
> + dev_info(dev, "Enable OCM auto control sink_ctrl pin\n");
> + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
> + anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) &
> + ~SINK_CTRL_DIS_FLAG);
> + if (vol_100mv != REQ_VOL_20V_IN_100MV)
> + break;
> +
> + if (cur_50ma != REQ_CUR_2_25A_IN_50MA &&
> + cur_50ma != REQ_CUR_3_25A_IN_50MA)
> + break;
> +
> + /* Disable OCM automatically control sink_ctrl pin*/
> + dev_info(dev, "Disable OCM auto control sink_ctrl pin\n");
> + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
> + anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) |
> + SINK_CTRL_DIS_FLAG);
> +
> + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> + power_supply_changed(ctx->psy);
> +#endif
> + break;
> + case TYPE_SNK_CAP:
> + break;
> + case TYPE_SVID:
> + break;
> + case TYPE_SNK_IDENTITY:
> + break;
> + case TYPE_GET_DP_ALT_ENTER:
> + /* DP alt mode enter success */
> + if (buf[0])
> + anx7411_update_altmode(ctx, DP_SVID);
> + break;
> + case TYPE_DP_ALT_ENTER:
> + /* Update DP altmode */
> + anx7411_update_altmode(ctx, DP_SVID);
> + break;
> + case TYPE_OBJ_REQ:
> + anx7411_detect_power_mode(ctx);
> + break;
> + case TYPE_DP_CONFIGURE:
> + anx7411_set_mux(ctx, buf[1]);
> + break;
> + case TYPE_DP_DISCOVER_MODES_INFO:
> + /* Make sure discover modes valid */
> + if (buf[0] | buf[1])
> + /* Register DP Altmode */
> + anx7411_register_altmode(ctx, 1, buf);
> + break;
> + case TYPE_VDM:
> + /* Register other altmode */
> + anx7411_register_altmode(ctx, 0, buf);
> + break;
> + default:
> + dev_info(dev, "ignore message(0x%.02x).\n", type);
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static u8 checksum(struct device *dev, u8 *buf, u8 len)
> +{
> + u8 ret;
> + u8 i;
> +
> + ret = 0;
u8 ret = 0;
> + for (i = 0; i < len; i++)
> + ret += buf[i];
> +
> + return ret;
> +}
This looks like some kind of a helper for something (not sure for
what yet). You don't need to pass the device to it since you are not
using it.
> +static int anx7411_read_msg_ctrl_status(struct i2c_client *client)
> +{
> + return anx7411_reg_read(client, CMD_SEND_BUF);
> +}
> +
> +static int anx7411_wait_msg_empty(struct i2c_client *client)
> +{
> + struct device *dev = &client->dev;
> + int ret, val;
> +
> + ret = readx_poll_timeout(anx7411_read_msg_ctrl_status,
> + client, val, (val < 0) || (val == 0),
> + 2000, 2000 * 150);
> + if (ret)
> + dev_info(dev, "msg buffer busy\n");
> +
> + return ret;
> +}
> +
> +static int anx7411_send_msg(struct anx7411_data *ctx, u8 type, u8 *buf, u8 size)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + u8 msg[MSG_LEN];
> + u8 crc;
> + int ret;
> +
> + if (size)
> + memcpy(&msg[MSG_RAWDATA], buf, size);
> + msg[MSG_TYPE] = type;
> + msg[MSG_HEADER] = size + 1;
> +
> + crc = checksum(dev, msg, size + HEADER_LEN);
> + msg[size + HEADER_LEN] = 0 - crc;
That looks a bit odd...
What is the checksum here? We have build-in crc function in kernel.
Can't you use those?
> + ret = anx7411_wait_msg_empty(ctx->spi_client);
> + if (ret) {
> + dev_info(dev, "firmware busy, ret(0x%.02x)\n", ret);
> + return ret;
> + }
> +
> + anx7411_reg_block_write(ctx->spi_client,
> + CMD_SEND_BUF + 1, size + HEADER_LEN,
> + &msg[MSG_TYPE]);
> + return anx7411_reg_write(ctx->spi_client, CMD_SEND_BUF,
> + msg[MSG_HEADER]);
> +}
> +
> +static int anx7411_process_cmd(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + u8 msg[MSG_LEN];
> + u8 len;
> + u8 crc;
> +
> + /* Read message from firmware */
> + anx7411_reg_block_read(ctx->spi_client, CMD_RECV_BUF, MSG_LEN, msg);
> + anx7411_reg_write(ctx->spi_client, CMD_RECV_BUF, 0);
> +
> + if (!msg[MSG_HEADER]) {
> + dev_info(dev, "message empty\n");
> + return 0;
> + }
> +
> + len = msg[MSG_HEADER] & MSG_LEN_MASK;
> + crc = checksum(dev, msg, len + HEADER_LEN);
> + if (crc) {
> + dev_err(dev, "message error crc(0x%.02x)\n", crc);
> + return -1;
What does -1 mean here?
> + }
> +
> + return anx7411_parse_cmd(ctx, msg[MSG_TYPE],
> + &msg[MSG_RAWDATA], len - 1);
> +}
> +
> +static void anx7411_translate_payload(struct device *dev, __le32 *payload,
> + u32 *pdo, int nr, const char *type)
> +{
> + int i;
> +
> + dev_info(dev, "convert %s pdos to little endian format\n", type);
> + if (nr > PDO_MAX_OBJECTS) {
> + dev_err(dev, "nr(%d) exceed PDO_MAX_OBJECTS(%d)\n",
> + nr, PDO_MAX_OBJECTS);
> +
> + return;
> + }
> +
> + for (i = 0; i < nr; i++)
> + payload[i] = cpu_to_le32(pdo[i]);
> +}
> +
> +static void anx7411_config(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + struct typec_params *typecp = &ctx->typec;
> + __le32 payload[PDO_MAX_OBJECTS];
> +
> + dev_info(dev, "initial anx7411\n");
> + /* Config PD FW work under PD 2.0 */
> + anx7411_reg_write(ctx->spi_client, PD_REV_INIT, PD_REV20);
> + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_0,
> + UNSTRUCT_VDM_EN | DELAY_200MS |
> + VSAFE1 | FRS_EN);
> + anx7411_reg_write(ctx->spi_client, FW_CTRL_1,
> + AUTO_PD_EN | FORCE_SEND_RDO);
> +
> + /* Set VBUS current threshold */
> + anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_H, 0xff);
> + anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_L, 0x03);
> +
> + /* Fix dongle compatible issue */
> + anx7411_reg_write(ctx->tcpc_client, FW_PARAM,
> + anx7411_reg_read(ctx->tcpc_client, FW_PARAM) |
> + DONGLE_IOP);
> + anx7411_reg_write(ctx->spi_client, INT_MASK, 0);
> +
> + anx7411_reg_write(ctx->spi_client, PD_EXT_MSG_CTRL, 0xFF);
> +
> + if (typecp->caps_flags & HAS_SOURCE_CAP) {
> + anx7411_translate_payload(dev, payload, typecp->src_pdo,
> + typecp->src_pdo_nr, "source");
> + anx7411_send_msg(ctx, TYPE_SRC_CAP, (u8 *)&payload,
> + typecp->src_pdo_nr * 4);
> + anx7411_send_msg(ctx, TYPE_SNK_IDENTITY, snk_identity,
> + sizeof(snk_identity));
> + anx7411_send_msg(ctx, TYPE_SET_SNK_DP_CAP, dp_caps,
> + sizeof(dp_caps));
> + }
> +
> + if (typecp->caps_flags & HAS_SINK_CAP) {
> + anx7411_translate_payload(dev, payload, typecp->sink_pdo,
> + typecp->sink_pdo_nr, "sink");
> + anx7411_send_msg(ctx, TYPE_SNK_CAP, (u8 *)&payload,
> + typecp->sink_pdo_nr * 4);
> + }
> +
> + if (typecp->caps_flags & HAS_SINK_WATT) {
> + if (typecp->sink_watt) {
> + anx7411_reg_write(ctx->spi_client, MAX_POWER,
> + typecp->sink_watt);
> + /* Set min power to 1W */
> + anx7411_reg_write(ctx->spi_client, MIN_POWER, 2);
> + }
> +
> + if (typecp->sink_voltage)
> + anx7411_reg_write(ctx->spi_client, MAX_VOLTAGE,
> + typecp->sink_voltage);
> + }
> +
> + if (!typecp->caps_flags)
> + usleep_range(5000, 6000);
> +
> + ctx->fw_version = anx7411_reg_read(ctx->spi_client, FW_VER);
> + ctx->fw_subversion = anx7411_reg_read(ctx->spi_client,
> + FW_SUBVER);
> + dev_info(dev, "power on, ocm version %.02x%.02x\n",
> + ctx->fw_version, ctx->fw_subversion);
> +}
> +
> +static void anx7411_chip_standby(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->tcpc_client->dev;
> +
> + dev_info(dev, "Anx7411 enter into standby mode.\n");
> +
> + anx7411_reg_write(ctx->spi_client, OCM_CTRL_0,
> + anx7411_reg_read(ctx->spi_client, OCM_CTRL_0) |
> + OCM_RESET);
> + anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80);
> + /* Set TCPC to RD and DRP enable */
> + anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CONTROL, 0x4A);
> + /* Send DRP toggle command */
> + anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0x99);
So that would be Look4Connection command, no?
> + /* Send TCPC enter standby command */
> + anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0xFF);
And that is the I2C Idle command.
Those commands are already defined in drivers/usb/typec/tcpm/tcpci.h.
I would really prefer that we use the same definitions everywhere. We
probable should have them in a file include/linux/usb/tcpci.h.
> +}
> +
> +static void anx7411_work_func(struct work_struct *work)
> +{
> + int ret;
> + u8 buf[STATUS_LEN];
> + u8 int_change, int_status, alert0, alert1;
Sorry to be picky here, but it would be easier to read this code if
you introduced each of those registers on its own line. And please try
to use the same style also when introducing the variable in every
function.
> + struct anx7411_data *ctx = container_of(work,
> + struct anx7411_data, work);
One line is enough here.
> + struct device *dev = &ctx->spi_client->dev;
> +
> + mutex_lock(&ctx->lock);
> +
> + /* Read interrupt change status */
> + ret = anx7411_reg_block_read(ctx->spi_client, INT_STS,
> + STATUS_LEN, buf);
Ditto.
> + if (ret < 0) {
> + /* Power standby mode, just return */
> + goto unlock;
> + }
> + int_change = buf[0];
> + int_status = buf[1];
> +
> + /* Read alert register */
> + ret = anx7411_reg_block_read(ctx->tcpc_client, ALERT_0,
> + STATUS_LEN, buf);
> + if (ret < 0) {
> + dev_err(dev, "failed to read register(%d)\n", ALERT_0);
> + goto unlock;
> + }
> + alert0 = buf[0];
> + alert1 = buf[1];
> +
> + /* Clear interrupt and alert status */
> + anx7411_reg_write(ctx->spi_client, INT_STS, 0);
> + anx7411_reg_write(ctx->tcpc_client, ALERT_0, alert0);
> + anx7411_reg_write(ctx->tcpc_client, ALERT_1, alert1);
> +
> + dev_info(dev, "int_change(0x%.02x), int_status(0x%.02x).\n",
> + int_change, int_status);
> + dev_info(dev, "alert0(0x%.02x), alert1(0x%.02x).\n", alert0, alert1);
> +
> + if (alert1 & INTP_POW_OFF) {
> + anx7411_partner_unregister_altmode(ctx);
> + anx7411_set_usb_role(ctx, USB_ROLE_NONE);
> + anx7411_unregister_partner(ctx);
> + ctx->psy_online = ANX7411_PSY_OFFLINE;
> + ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
> + ctx->typec.request_voltage = 0;
> + ctx->typec.request_current = 0;
> + power_supply_changed(ctx->psy);
> + anx7411_chip_standby(ctx);
> + goto unlock;
> + }
> +
> + if ((alert0 & SOFTWARE_INT) && (int_change & OCM_BOOT_UP)) {
> + anx7411_config(ctx);
> + anx7411_data_role_detect(ctx);
> + anx7411_power_role_detect(ctx);
> + anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
> + }
> +
> + if (alert0 & RECEIVED_MSG)
> + anx7411_process_cmd(ctx);
> +
> + ret = (int_status & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
> + if (ctx->typec.data_role != ret)
> + anx7411_data_role_detect(ctx);
> +
> + ret = (int_status & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
> + if (ctx->typec.power_role != ret)
> + anx7411_power_role_detect(ctx);
> +
> + if ((alert0 & SOFTWARE_INT) && (int_change & CC_STATUS_CHANGE))
> + anx7411_cc_status_detect(ctx);
> +
> +unlock:
> + mutex_unlock(&ctx->lock);
> +}
> +
> +static irqreturn_t anx7411_intr_isr(int irq, void *data)
> +{
> + struct anx7411_data *ctx = (struct anx7411_data *)data;
> +
> + queue_work(ctx->workqueue, &ctx->work);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static int anx7411_register_i2c_dummy_clients(struct anx7411_data *ctx,
> + struct i2c_client *client)
> +{
> + int i;
> + u8 spi_addr;
> +
> + for (i = 0; i < sizeof(anx7411_i2c_addr); i++) {
> + if (client->addr == (anx7411_i2c_addr[i].tcpc_address >> 1)) {
> + spi_addr = anx7411_i2c_addr[i].spi_address >> 1;
> + ctx->spi_client = i2c_new_dummy_device(client->adapter,
> + spi_addr);
> + if (ctx->spi_client) {
> + dev_info(&client->dev, "found spi slave\n");
> + return 0;
> + }
> + }
> + }
> +
> + dev_err(&client->dev, "unable to get SPI slave\n");
> + return -ENOMEM;
> +}
To which bus is the device actually attached to, SPI or I2C?
I'm not sure I understand what is going on here?
> +static void anx7411_port_unregister_altmodes(struct typec_altmode **adev)
> +{
> + int i;
> +
> + for (i = 0; i < MAX_ALTMODE; i++)
> + if (adev[i]) {
> + typec_unregister_altmode(adev[i]);
> + adev[i] = NULL;
> + }
> +}
> +
> +static int anx7411_usb_mux_set(struct typec_mux *mux,
> + struct typec_mux_state *state)
> +{
> + struct anx7411_data *ctx = typec_mux_get_drvdata(mux);
> + struct device *dev = &ctx->spi_client->dev;
> + int has_dp;
> +
> + has_dp = (state->alt && state->alt->svid == USB_TYPEC_DP_SID &&
> + state->alt->mode == USB_TYPEC_DP_MODE);
> + dev_info(dev, "callback: mux set: %d", has_dp);
> + if (!has_dp) {
> + dev_info(dev, "dp altmode not register\n");
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_usb_set_orientation(struct typec_switch *sw,
> + enum typec_orientation orientation)
> +{
> + struct anx7411_data *ctx = typec_switch_get_drvdata(sw);
> + struct device *dev = &ctx->spi_client->dev;
> +
> + dev_info(dev, "callback: orientation set %d\n", orientation);
> +
> + return 0;
> +}
> +
> +static int anx7411_register_switch(struct anx7411_data *ctx,
> + struct device *dev,
> + struct fwnode_handle *fwnode)
> +{
> + struct typec_switch_desc sw_desc = { };
> +
> + sw_desc.fwnode = fwnode;
> + sw_desc.drvdata = ctx;
> + sw_desc.name = fwnode_get_name(fwnode);
> + sw_desc.set = anx7411_usb_set_orientation;
> +
> + ctx->typec.typec_switch = typec_switch_register(dev, &sw_desc);
> + if (IS_ERR(ctx->typec.typec_switch)) {
> + dev_err(dev, "switch register failed\n");
> + return PTR_ERR(ctx->typec.typec_switch);
> + }
> +
> + return 0;
> +}
> +
> +static int anx7411_register_mux(struct anx7411_data *ctx,
> + struct device *dev,
> + struct fwnode_handle *fwnode)
> +{
> + struct typec_mux_desc mux_desc = { };
> +
> + mux_desc.fwnode = fwnode;
> + mux_desc.drvdata = ctx;
> + mux_desc.name = fwnode_get_name(fwnode);
> + mux_desc.set = anx7411_usb_mux_set;
> +
> + ctx->typec.typec_mux = typec_mux_register(dev, &mux_desc);
> + if (IS_ERR(ctx->typec.typec_mux)) {
> + dev_err(dev, "mux register failed\n");
> + return PTR_ERR(ctx->typec.typec_mux);
> + }
> +
> + return 0;
> +}
> +
> +static void anx7411_unregister_mux(struct anx7411_data *ctx)
> +{
> + if (ctx->typec.typec_mux) {
> + typec_mux_unregister(ctx->typec.typec_mux);
> + ctx->typec.typec_mux = NULL;
> + }
> +}
> +
> +static void anx7411_unregister_switch(struct anx7411_data *ctx)
> +{
> + if (ctx->typec.typec_switch) {
> + typec_switch_unregister(ctx->typec.typec_switch);
> + ctx->typec.typec_switch = NULL;
> + }
> +}
> +
> +static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
> + struct device *dev)
> +{
> + int ret;
> + struct device_node *node;
> +
> + node = of_find_node_by_name(dev->of_node, "orientation_switch");
> + if (!node) {
> + dev_info(dev, "no typec switch exist\n");
> + return 0;
> + }
> +
> + dev_info(dev, "register switch\n");
> + ret = anx7411_register_switch(ctx, dev, &node->fwnode);
> + if (ret) {
> + dev_err(dev, "failed register switch");
> + return ret;
> + }
> +
> + node = of_find_node_by_name(dev->of_node, "mode_switch");
> + if (!node) {
> + dev_err(dev, "no typec mux exist");
> + ret = -ENODEV;
> + goto unregister_switch;
> + }
> +
> + dev_info(dev, "register mode switch\n");
> + ret = anx7411_register_mux(ctx, dev, &node->fwnode);
> + if (ret) {
> + dev_err(dev, "failed register mode switch");
> + ret = -ENODEV;
> + goto unregister_switch;
> + }
> +
> + return 0;
> +
> +unregister_switch:
> + anx7411_unregister_switch(ctx);
> +
> + return ret;
> +}
> +
> +static int anx7411_typec_port_probe(struct anx7411_data *ctx,
> + struct device *dev)
> +{
> + struct typec_capability *cap = &ctx->typec.caps;
> + struct typec_params *typecp = &ctx->typec;
> + struct fwnode_handle *fwnode;
> + const char *buf;
> + int ret, i;
> +
> + fwnode = device_get_named_child_node(dev, "connector");
> + if (!fwnode)
> + return -EINVAL;
> +
> + ret = fwnode_property_read_string(fwnode, "power-role", &buf);
> + if (ret) {
> + dev_err(dev, "power-role not found: %d\n", ret);
> + return ret;
> + }
> +
> + ret = typec_find_port_power_role(buf);
> + if (ret < 0)
> + return ret;
> + cap->type = ret;
> +
> + ret = fwnode_property_read_string(fwnode, "data-role", &buf);
> + if (ret) {
> + dev_err(dev, "data-role not found: %d\n", ret);
> + return ret;
> + }
> +
> + ret = typec_find_port_data_role(buf);
> + if (ret < 0)
> + return ret;
> + cap->data = ret;
> +
> + ret = fwnode_property_read_string(fwnode, "try-power-role", &buf);
> + if (ret) {
> + dev_err(dev, "try-power-role not found: %d\n", ret);
> + return ret;
> + }
> +
> + ret = typec_find_power_role(buf);
> + if (ret < 0)
> + return ret;
> + cap->prefer_role = ret;
> +
> + /* Get source pdos */
> + ret = fwnode_property_count_u32(fwnode, "source-pdos");
> + if (ret > 0) {
> + dev_info(dev, "%d source-pdos found\n", ret);
> + typecp->src_pdo_nr = min(ret, PDO_MAX_OBJECTS);
> + ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
> + typecp->src_pdo,
> + typecp->src_pdo_nr);
> + if (ret < 0) {
> + dev_err(dev, "source cap validate failed: %d\n", ret);
> + return -EINVAL;
> + }
> +
> + typecp->caps_flags |= HAS_SOURCE_CAP;
> + }
> +
> + ret = fwnode_property_count_u32(fwnode, "sink-pdos");
> + if (ret > 0) {
> + dev_info(dev, "%d sink-pdos found\n", ret);
> + typecp->sink_pdo_nr = min(ret, PDO_MAX_OBJECTS);
> + ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
> + typecp->sink_pdo,
> + typecp->sink_pdo_nr);
> + if (ret < 0) {
> + dev_err(dev, "sink cap validate failed: %d\n", ret);
> + return -EINVAL;
> + }
> +
> + for (i = 0; i < typecp->sink_pdo_nr; i++) {
> + ret = 0;
> + switch (pdo_type(typecp->sink_pdo[i])) {
> + case PDO_TYPE_FIXED:
> + ret = pdo_fixed_voltage(typecp->sink_pdo[i]);
> + break;
> + case PDO_TYPE_BATT:
> + case PDO_TYPE_VAR:
> + ret = pdo_max_voltage(typecp->sink_pdo[i]);
> + break;
> + case PDO_TYPE_APDO:
> + default:
> + ret = 0;
> + break;
> + }
> +
> + /* 100mv per unit */
> + typecp->sink_voltage = max(5000, ret) / 100;
> + }
> +
> + typecp->caps_flags |= HAS_SINK_CAP;
> + }
> +
> + if (!fwnode_property_read_u32(fwnode, "op-sink-microwatt", &ret)) {
> + dev_info(dev, "%d sink-microwat found\n", ret);
> + typecp->sink_watt = ret / 500000; /* 500mw per unit */
> + typecp->caps_flags |= HAS_SINK_WATT;
> + }
> +
> + cap->fwnode = fwnode;
> +
> + ctx->typec.role_sw = usb_role_switch_get(dev);
> + if (IS_ERR(ctx->typec.role_sw)) {
> + dev_err(dev, "USB role switch not found.\n");
> + ctx->typec.role_sw = NULL;
> + }
> +
> + ctx->typec.port = typec_register_port(dev, cap);
> + if (IS_ERR(ctx->typec.port)) {
> + ret = PTR_ERR(ctx->typec.port);
> + ctx->typec.port = NULL;
> + dev_err(dev, "Failed to register type c port %d\n", ret);
> + return ret;
> + }
> +
> + typec_port_register_altmodes(ctx->typec.port, NULL, ctx,
> + ctx->typec.port_amode,
> + MAX_ALTMODE);
> +
> + return 0;
> +}
> +
> +static int anx7411_typec_check_connection(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->spi_client->dev;
> + int ret;
> +
> + ret = anx7411_reg_read(ctx->spi_client, FW_VER);
> + if (ret < 0) {
> + /* No device attached in typec port */
> + dev_info(dev, "no connection detect.\n");
> + return 0;
> + }
> +
> + dev_info(dev, "detected typec connected, ocm ver:0x%.02x.\n", ret);
> + dev_info(dev, "force clear interrupt and alert.\n");
> + /* Clear interrupt and alert status */
> + anx7411_reg_write(ctx->spi_client, INT_STS, 0);
> + anx7411_reg_write(ctx->tcpc_client, ALERT_0, 0xFF);
> + anx7411_reg_write(ctx->tcpc_client, ALERT_1, 0xFF);
> +
> + anx7411_cc_status_detect(ctx);
> +
> + anx7411_power_role_detect(ctx);
> +
> + dev_info(dev, "PD %s voltage(%d), current(%d).\n",
> + ctx->typec.power_role == TYPEC_SOURCE ? "supply" : "request",
> + ctx->typec.request_voltage, ctx->typec.request_current);
> +
> + anx7411_data_role_detect(ctx);
> +
> + anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
> +
> + anx7411_send_msg(ctx, TYPE_GET_DP_ALT_ENTER, NULL, 0);
> +
> + anx7411_send_msg(ctx, TYPE_GET_DP_DISCOVER_MODES_INFO, NULL, 0);
> +
> + return 0;
> +}
> +
> +static int __maybe_unused anx7411_runtime_pm_suspend(struct device *dev)
> +{
> + struct anx7411_data *ctx = dev_get_drvdata(dev);
> +
> + mutex_lock(&ctx->lock);
> +
> + anx7411_partner_unregister_altmode(ctx);
> +
> + if (ctx->typec.partner)
> + anx7411_unregister_partner(ctx);
> +
> + mutex_unlock(&ctx->lock);
> +
> + return 0;
> +}
> +
> +static int __maybe_unused anx7411_runtime_pm_resume(struct device *dev)
> +{
> + struct anx7411_data *ctx = dev_get_drvdata(dev);
> +
> + mutex_lock(&ctx->lock);
> + /* Detect PD connection */
> + anx7411_typec_check_connection(ctx);
> +
> + mutex_unlock(&ctx->lock);
> +
> + return 0;
> +}
> +
> +static const struct dev_pm_ops anx7411_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> + pm_runtime_force_resume)
> + SET_RUNTIME_PM_OPS(anx7411_runtime_pm_suspend,
> + anx7411_runtime_pm_resume, NULL)
> +};
> +
> +static void anx7411_get_gpio_irq(struct anx7411_data *ctx)
> +{
> + struct device *dev = &ctx->tcpc_client->dev;
> +
> + ctx->intp_gpiod = devm_gpiod_get_optional(dev, "interrupt", GPIOD_IN);
> + if (!ctx->intp_gpiod) {
> + dev_info(dev, "no interrupt gpio property\n");
> + return;
> + }
> +
> + ctx->intp_irq = gpiod_to_irq(ctx->intp_gpiod);
> + dev_info(dev, "request gpio(%d) irq(%d)\n",
> + desc_to_gpio(ctx->intp_gpiod), ctx->intp_irq);
> +
> + if (!ctx->intp_irq)
> + dev_err(dev, "failed to get GPIO IRQ\n");
> +}
> +
> +static const char *anx7411_psy_name_prefix = "anx7411-source-psy-";
> +
> +static enum power_supply_usb_type anx7411_psy_usb_types[] = {
> + POWER_SUPPLY_USB_TYPE_C,
> + POWER_SUPPLY_USB_TYPE_PD,
> + POWER_SUPPLY_USB_TYPE_PD_PPS,
> +};
> +
> +static enum power_supply_property anx7411_psy_props[] = {
> + POWER_SUPPLY_PROP_USB_TYPE,
> + POWER_SUPPLY_PROP_ONLINE,
> + POWER_SUPPLY_PROP_VOLTAGE_MIN,
> + POWER_SUPPLY_PROP_VOLTAGE_MAX,
> + POWER_SUPPLY_PROP_VOLTAGE_NOW,
> + POWER_SUPPLY_PROP_CURRENT_MAX,
> + POWER_SUPPLY_PROP_CURRENT_NOW,
> +};
> +
> +static int anx7411_psy_set_prop(struct power_supply *psy,
> + enum power_supply_property psp,
> + const union power_supply_propval *val)
> +{
> + struct anx7411_data *ctx = power_supply_get_drvdata(psy);
> + int ret = 0;
> +
> + if (psp == POWER_SUPPLY_PROP_ONLINE) {
> + pr_info("[DEBUG] set prop -> %d\n", val->intval);
> + ctx->psy_online = val->intval;
> +#ifdef CUST_SINK_CTRL_EN
> + if (ctx->psy_online == ANX7411_PSY_HANG)
> + anx7411_reg_write(ctx->tcpc_client,
> + TCPC_COMMAND,
> + SINK_CTRL_DIS);
> + else if (ctx->psy_online)
> + anx7411_reg_write(ctx->tcpc_client,
> + TCPC_COMMAND,
> + SINK_CTRL_EN);
> +#endif
> + } else {
> + ret = -EINVAL;
> + }
> +
> + power_supply_changed(ctx->psy);
> + return ret;
> +}
> +
> +static int anx7411_psy_prop_writeable(struct power_supply *psy,
> + enum power_supply_property psp)
> +{
> + return (psp == POWER_SUPPLY_PROP_ONLINE) ? 1 : 0;
return psp == POWER_SUPPLY_PROP_ONLINE;
> +}
> +
> +static int anx7411_psy_get_prop(struct power_supply *psy,
> + enum power_supply_property psp,
> + union power_supply_propval *val)
> +{
> + struct anx7411_data *ctx = power_supply_get_drvdata(psy);
> + int ret = 0;
> +
> + switch (psp) {
> + case POWER_SUPPLY_PROP_USB_TYPE:
> + val->intval = ctx->usb_type;
> + break;
> + case POWER_SUPPLY_PROP_ONLINE:
> + val->intval = ctx->psy_online;
> + break;
> + case POWER_SUPPLY_PROP_VOLTAGE_NOW:
> + case POWER_SUPPLY_PROP_VOLTAGE_MIN:
> + case POWER_SUPPLY_PROP_VOLTAGE_MAX:
> + val->intval = (ctx->psy_online) ?
> + ctx->typec.request_voltage * 1000 : 0;
> + break;
> + case POWER_SUPPLY_PROP_CURRENT_NOW:
> + case POWER_SUPPLY_PROP_CURRENT_MAX:
> + val->intval = (ctx->psy_online) ?
> + ctx->typec.request_current * 1000 : 0;
> + break;
> + default:
> + ret = -EINVAL;
> + break;
> + }
> + return ret;
> +}
> +
> +static int anx7411_psy_register(struct anx7411_data *ctx)
> +{
> + struct power_supply_config psy_cfg = {};
> + const char *port_dev_name = dev_name(ctx->dev);
> + size_t psy_name_len = strlen(anx7411_psy_name_prefix) +
> + strlen(port_dev_name) + 1;
> + char *psy_name;
> + struct power_supply_desc *psy_desc = &ctx->psy_desc;
> +
> + psy_cfg.drv_data = ctx;
> + psy_cfg.fwnode = dev_fwnode(ctx->dev);
> + psy_name = devm_kzalloc(ctx->dev, psy_name_len, GFP_KERNEL);
> + if (!psy_name) {
> + dev_warn(ctx->dev, "unable to alloc psy memory\n");
> + return -ENOMEM;
> + }
> +
> + snprintf(psy_name, psy_name_len, "%s%s", anx7411_psy_name_prefix,
> + port_dev_name);
> +
> + psy_desc->name = psy_name;
> + psy_desc->type = POWER_SUPPLY_TYPE_USB;
> + psy_desc->usb_types = anx7411_psy_usb_types;
> + psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types);
> + psy_desc->properties = anx7411_psy_props,
> + psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props),
> +
> + psy_desc->get_property = anx7411_psy_get_prop,
> + psy_desc->set_property = anx7411_psy_set_prop,
> + psy_desc->property_is_writeable = anx7411_psy_prop_writeable,
> +
> + ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
> + ctx->psy = devm_power_supply_register(ctx->dev, psy_desc, &psy_cfg);
> +
> + if (IS_ERR(ctx->psy))
> + dev_warn(ctx->dev, "unable to register psy\n");
> +
> + return PTR_ERR_OR_ZERO(ctx->psy);
> +}
> +
> +static int anx7411_i2c_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct anx7411_data *plat;
> + struct device *dev = &client->dev;
> + int ret;
> +
> + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
> + return -ENODEV;
> +
> + plat = kzalloc(sizeof(*plat), GFP_KERNEL);
> + if (!plat)
> + return -ENOMEM;
Memory leak. I think you wanted to use devm_kzalloc() here, right?
> + plat->tcpc_client = client;
> + i2c_set_clientdata(client, plat);
> +
> + mutex_init(&plat->lock);
> +
> + ret = anx7411_register_i2c_dummy_clients(plat, client);
> + if (ret) {
> + dev_err(dev, "fail to reserve I2C bus\n");
> + return ret;
> + }
> +
> + ret = anx7411_typec_switch_probe(plat, dev);
> + if (ret) {
> + dev_err(dev, "fail to probe typec switch\n");
> + goto free_i2c_dummy;
> + }
> +
> + ret = anx7411_typec_port_probe(plat, dev);
> + if (ret) {
> + dev_err(dev, "fail to probe typec property.\n");
> + ret = -ENODEV;
> + goto free_typec_switch;
> + }
> +
> + plat->intp_irq = client->irq;
> + if (!client->irq) {
> + dev_info(dev, "no default interrupt IRQ, probe GPIO interrupt");
> + anx7411_get_gpio_irq(plat);
> + }
> +
> + if (!plat->intp_irq) {
> + dev_err(dev, "fail to get interrupt IRQ\n");
> + goto free_typec_port;
> + }
> +
> + plat->dev = dev;
> + plat->psy_online = ANX7411_PSY_OFFLINE;
> + anx7411_psy_register(plat);
> +
> + if (plat->intp_irq) {
> + INIT_WORK(&plat->work, anx7411_work_func);
> + plat->workqueue = alloc_workqueue("anx7411_work",
> + WQ_FREEZABLE |
> + WQ_MEM_RECLAIM,
> + 1);
> + if (!plat->workqueue) {
> + dev_err(dev, "fail to create work queue\n");
> + ret = -ENOMEM;
> + goto free_typec_port;
> + }
> +
> + ret = devm_request_threaded_irq(dev, plat->intp_irq,
> + NULL, anx7411_intr_isr,
> + IRQF_TRIGGER_FALLING |
> + IRQF_ONESHOT,
> + "anx7411-intp", plat);
> + if (ret) {
> + dev_err(dev, "fail to request irq\n");
> + goto free_wq;
> + }
> +
> + dev_info(dev, "registered irq %d handler\n", plat->intp_irq);
> + }
> +
> + anx7411_typec_check_connection(plat);
> +
> + pm_runtime_enable(dev);
> +
> + return 0;
> +
> +free_wq:
> + destroy_workqueue(plat->workqueue);
> +
> +free_typec_port:
> + typec_unregister_port(plat->typec.port);
> + anx7411_port_unregister_altmodes(plat->typec.port_amode);
> +
> +free_typec_switch:
> + anx7411_unregister_switch(plat);
> + anx7411_unregister_mux(plat);
> +
> +free_i2c_dummy:
> + i2c_unregister_device(plat->spi_client);
> +
> + return ret;
> +}
> +
> +static int anx7411_i2c_remove(struct i2c_client *client)
> +{
> + struct anx7411_data *plat = i2c_get_clientdata(client);
> +
Empty line.
> + anx7411_partner_unregister_altmode(plat);
> + anx7411_unregister_partner(plat);
> +
> + if (plat->workqueue)
> + destroy_workqueue(plat->workqueue);
> +
> + if (plat->spi_client)
> + i2c_unregister_device(plat->spi_client);
> +
> + if (plat->typec.role_sw)
> + usb_role_switch_put(plat->typec.role_sw);
> +
> + anx7411_unregister_mux(plat);
> +
> + anx7411_unregister_switch(plat);
> +
> + if (plat->typec.port)
> + typec_unregister_port(plat->typec.port);
> +
> + anx7411_port_unregister_altmodes(plat->typec.port_amode);
> +
> + return 0;
> +}
> +
> +static const struct i2c_device_id anx7411_id[] = {
> + {"anx7411", 0},
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, anx7411_id);
> +
> +static const struct of_device_id anx_match_table[] = {
> + {.compatible = "analogix,anx7411",},
> + {},
> +};
> +
> +static struct i2c_driver anx7411_driver = {
> + .driver = {
> + .name = "anx7411",
> + .of_match_table = anx_match_table,
> + .pm = &anx7411_pm_ops,
> + },
> + .probe = anx7411_i2c_probe,
> + .remove = anx7411_i2c_remove,
> +
> + .id_table = anx7411_id,
> +};
> +
> +module_i2c_driver(anx7411_driver);
> +
> +MODULE_DESCRIPTION("Anx7411 USB Type-C PD driver");
> +MODULE_AUTHOR("Xin Ji <[email protected]>");
> +MODULE_LICENSE("GPL v2");
> +MODULE_VERSION("0.1.4");
It seems that there are a few quality issues, and some duplication with
the tcpci.c driver.
thanks,
--
heikki
On Tue, Feb 15, 2022 at 05:41:58PM +0200, Heikki Krogerus wrote:
> Hi,
>
> Where is patch 1/2 ?
Hi, please check 1/2 please check
https://patchwork.kernel.org/project/linux-usb/list/?series=612104
Thanks,
Xin
>
> On Tue, Feb 08, 2022 at 05:16:21PM +0800, Xin Ji wrote:
> > Add driver for analogix ANX7411 USB Type-C DRP port controller.
> >
> > Signed-off-by: Xin Ji <[email protected]>
> >
> > ---
> > V4 -> V5: Fix Greg h-k comment, remove DEBUG define
> > V3 -> V4: Fix compiling waring
> > V2 -> V3: Add changelog history
> > V1 -> V2: Fix compiling warning issue
> > ---
> > drivers/usb/typec/Kconfig | 11 +
> > drivers/usb/typec/Makefile | 1 +
> > drivers/usb/typec/anx7411.c | 1471 +++++++++++++++++++++++++++++++++++
> > drivers/usb/typec/anx7411.h | 271 +++++++
> > 4 files changed, 1754 insertions(+)
> > create mode 100644 drivers/usb/typec/anx7411.c
> > create mode 100644 drivers/usb/typec/anx7411.h
> >
> > diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
> > index ab480f38523a..615183f46405 100644
> > --- a/drivers/usb/typec/Kconfig
> > +++ b/drivers/usb/typec/Kconfig
> > @@ -52,6 +52,17 @@ source "drivers/usb/typec/ucsi/Kconfig"
> >
> > source "drivers/usb/typec/tipd/Kconfig"
> >
> > +config TYPEC_ANX7411
> > + tristate "Analogix ANX7411 Type-C DRP Port controller driver"
> > + depends on I2C
> > + depends on USB_ROLE_SWITCH
> > + help
> > + Say Y or M here if your system has Analogix ANX7411 Type-C DRP Port
> > + controller driver.
> > +
> > + If you choose to build this driver as a dynamically linked module, the
> > + module will be called anx7411.ko.
> > +
> > config TYPEC_HD3SS3220
> > tristate "TI HD3SS3220 Type-C DRP Port controller driver"
> > depends on I2C
> > diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
> > index a0adb8947a30..f4e7188f174a 100644
> > --- a/drivers/usb/typec/Makefile
> > +++ b/drivers/usb/typec/Makefile
> > @@ -5,6 +5,7 @@ obj-$(CONFIG_TYPEC) += altmodes/
> > obj-$(CONFIG_TYPEC_TCPM) += tcpm/
> > obj-$(CONFIG_TYPEC_UCSI) += ucsi/
> > obj-$(CONFIG_TYPEC_TPS6598X) += tipd/
> > +obj-$(CONFIG_TYPEC_ANX7411) += anx7411.o
> > obj-$(CONFIG_TYPEC_HD3SS3220) += hd3ss3220.o
> > obj-$(CONFIG_TYPEC_QCOM_PMIC) += qcom-pmic-typec.o
> > obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o
> > diff --git a/drivers/usb/typec/anx7411.c b/drivers/usb/typec/anx7411.c
> > new file mode 100644
> > index 000000000000..fb9adda037b5
> > --- /dev/null
> > +++ b/drivers/usb/typec/anx7411.c
> > @@ -0,0 +1,1471 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +
> > +/*
> > + * Copyright(c) 2022, Analogix Semiconductor. All rights reserved.
> > + *
> > + */
> > +#include <linux/gcd.h>
>
> Do you actually need that?
I'll remove it
>
> > +#include <linux/gpio/consumer.h>
> > +#include <linux/i2c.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/iopoll.h>
> > +#include <linux/kernel.h>
> > +#include <linux/module.h>
> > +#include <linux/mutex.h>
> > +#include <linux/of_gpio.h>
>
> And that?
Will remove it
>
> > +#include <linux/of_graph.h>
> > +#include <linux/of_platform.h>
> > +#include <linux/pm_runtime.h>
> > +#include <linux/regulator/consumer.h>
> > +#include <linux/slab.h>
> > +#include <linux/types.h>
> > +#include <linux/usb/pd.h>
> > +#include <linux/usb/role.h>
> > +#include <linux/usb/typec.h>
> > +#include <linux/usb/typec_dp.h>
> > +#include <linux/usb/typec_mux.h>
> > +#include <linux/workqueue.h>
> > +#include <linux/power_supply.h>
> > +
> > +#include "anx7411.h"
> > +
> > +static u8 snk_identity[] = {
> > + VENDOR_ID & 0xFF, (VENDOR_ID >> 8) & 0xFF, 0x00, 0x82, /* snk_id_hdr */
> > + 0x00, 0x00, 0x00, 0x00, /* snk_cert */
> > + 0x00, 0x00, PRODUCT_ID & 0xFF, (PRODUCT_ID >> 8) & 0xFF,/* 5snk_ama */
> > +};
>
> Hardcoded identity? I would have really expected that the firmware
> provides that thing.
>
> In any case, use the helpers from include/linux/usb/pd_vdo.h to fill
> that thing.
pd_vdo.h didn't have property data structure to declare.
>
> > +static u8 dp_caps[4] = {0xC6, 0x00, 0x00, 0x00};
>
> What is that?
This vdo used as snk, while DFP send "DP Discover Mode", anx7411 will
return this status to partner side.
>
> > +static int anx7411_reg_read(struct i2c_client *client,
> > + u8 reg_addr)
> > +{
> > + return i2c_smbus_read_byte_data(client, reg_addr);
> > +}
> > +
> > +static int anx7411_reg_block_read(struct i2c_client *client,
> > + u8 reg_addr, u8 len, u8 *buf)
> > +{
> > + return i2c_smbus_read_i2c_block_data(client, reg_addr, len, buf);
> > +}
> > +
> > +static int anx7411_reg_write(struct i2c_client *client,
> > + u8 reg_addr, u8 reg_val)
> > +{
> > + return i2c_smbus_write_byte_data(client, reg_addr, reg_val);
> > +}
> > +
> > +static int anx7411_reg_block_write(struct i2c_client *client,
> > + u8 reg_addr, u8 len, u8 *buf)
> > +{
> > + return i2c_smbus_write_i2c_block_data(client, reg_addr, len, buf);
> > +}
> > +
> > +static struct anx7411_i2c_select anx7411_i2c_addr[] = {
> > + {TCPC_ADDRESS1, SPI_ADDRESS1},
> > + {TCPC_ADDRESS2, SPI_ADDRESS2},
> > + {TCPC_ADDRESS3, SPI_ADDRESS3},
> > + {TCPC_ADDRESS4, SPI_ADDRESS4},
> > +};
>
> What are those?
This is I2C address group, anx7411 support 4 group address.
>
> > +static int anx7411_detect_power_mode(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
>
>
> spi_client ?
it represent i2c registers device, this dummy I2C device created at
"anx7411_register_i2c_dummy_clients()"
>
> > + int ret;
> > + int mode;
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
> > + if (ret < 0) {
> > + dev_info(dev, "failed to read request current.\n");
>
> dev_err()?
OK
>
> > + return ret;
> > + }
> > + ctx->typec.request_current = ret * CURRENT_UNIT; /* 50ma per unit */
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
> > + if (ret < 0) {
> > + dev_info(dev, "failed to read voltage.\n");
>
> Ditto.
>
OK
> > + return ret;
> > + }
> > + ctx->typec.request_voltage = ret * VOLTAGE_UNIT; /* 100mv per unit */
> > +
> > + if (ctx->psy_online == ANX7411_PSY_OFFLINE) {
> > + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> > + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> > + power_supply_changed(ctx->psy);
> > + }
> > +
> > + if (!ctx->typec.cc_orientation_valid) {
> > + dev_info(dev, "cc orientation is 0(debug cable plug in).\n");
>
> That is just noise.
>
> What does cc_orientation_valid mean here? If it's just indicating is
> the connector in accessory mode, then why not name it like that?
Just check whether is accessory debug/audio cable.
>
> > + return 0;
> > + }
> > +
> > + if (ctx->typec.cc_connect == CC1_CONNECTED)
> > + mode = CC1_RP(ctx->typec.cc_status);
> > + else
> > + mode = CC2_RP(ctx->typec.cc_status);
> > + if (mode) {
> > + dev_info(dev, "set power opmode as %d.\n", mode - 1);
>
> More noise.
>
OK
> > + typec_set_pwr_opmode(ctx->typec.port, mode - 1);
> > + return 0;
> > + }
> > +
> > + typec_set_pwr_opmode(ctx->typec.port, TYPEC_PWR_MODE_PD);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_register_partner(struct anx7411_data *ctx,
> > + int pd, int accessory)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + struct typec_partner_desc desc;
> > +
> > + if (ctx->typec.partner) {
> > + dev_info(dev, "ignore register typec partner request.\n");
>
> Noise.
OK
>
> > + return 0;
> > + }
> > +
> > + dev_info(dev, "register typec partner port.\n");
>
> Noise.
OK
>
> > + desc.usb_pd = pd;
> > + desc.accessory = accessory;
> > + desc.identity = NULL;
> > + ctx->typec.partner = typec_register_partner(ctx->typec.port, &desc);
> > + if (IS_ERR(ctx->typec.partner)) {
> > + dev_err(dev, "failed to register partner\n");
> > + ctx->typec.partner = NULL;
> > + return PTR_ERR(ctx->typec.partner);
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_detect_cc_orientation(struct anx7411_data *ctx)
> > +{
> > + int ret;
> > + int cc1_rd, cc2_rd;
> > + int cc1_ra, cc2_ra;
> > + int cc1_rp, cc2_rp;
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, CC_STATUS);
> > + if (ret < 0) {
> > + dev_info(dev, "failed to read cc status.\n");
>
> dev_err().
OK
>
> > + return ret;
> > + }
> > +
> > + dev_info(dev, "cc status %.02x\n", ret);
>
> Noise.
Remove
>
> > + ctx->typec.cc_status = ret;
> > +
> > + cc1_rd = ret & CC1_RD ? 1 : 0;
> > + cc2_rd = ret & CC2_RD ? 1 : 0;
> > + cc1_ra = ret & CC1_RA ? 1 : 0;
> > + cc2_ra = ret & CC2_RA ? 1 : 0;
>
> Do you need all of those here?
>
> cc_rd = !!((ret & CC1_RD) || (ret & CC2_RD))
> cc_ra = !!((ret & CC1_RA) || (ret & CC2_RA))
need these value to check whether partner device is Accessory
debug/audio cable.
>
> > + cc1_rp = CC1_RP(ret);
> > + cc2_rp = CC2_RP(ret);
> > +
> > + /* Debug cable, nothing to do */
> > + if (cc1_rd && cc2_rd) {
> > + ctx->typec.cc_orientation_valid = 0;
> > + anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_DEBUG);
> > + return 0;
> > + }
> > +
> > + if (cc1_ra && cc2_ra) {
> > + ctx->typec.cc_orientation_valid = 0;
> > + anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_AUDIO);
> > + return 0;
> > + }
> > +
> > + ctx->typec.cc_orientation_valid = 1;
> > +
> > + anx7411_register_partner(ctx, 1, TYPEC_ACCESSORY_NONE);
> > +
> > + if (cc1_rd || cc1_rp) {
> > + dev_info(dev, "set orientation to normal\n");
>
> Noise.
Remove
>
> > + typec_set_orientation(ctx->typec.port,
> > + TYPEC_ORIENTATION_NORMAL);
> > + ctx->typec.cc_connect = CC1_CONNECTED;
> > + }
> > +
> > + if (cc2_rd || cc2_rp) {
> > + dev_info(dev, "set orientation to reverse\n");
>
> Noise.
Remove
>
> > + typec_set_orientation(ctx->typec.port,
> > + TYPEC_ORIENTATION_REVERSE);
> > + ctx->typec.cc_connect = CC2_CONNECTED;
> > + }
> > +
> > + dev_info(dev, "cc1_rp(%d), cc2_rp(%d)", cc1_rp, cc2_rp);
> > + dev_info(dev, "\tcc1_rd(%d), cc2_rd(%d), cc_connected(%d).\n",
> > + cc1_rd, cc2_rd, ctx->typec.cc_connect);
>
> Noise!
>
> I'll stop commenting on the dev_info() lines. You need to drop
> all of them.
OK, I'll remove it.
>
> > + return 0;
> > +}
> > +
> > +static int anx7411_set_mux(struct anx7411_data *ctx, int pin_assignment)
> > +{
> > + int mode = TYPEC_STATE_SAFE;
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + switch (pin_assignment) {
> > + case SELECT_PIN_ASSIGMENT_U:
> > + /* default 4 line USB 3.1 */
> > + mode = TYPEC_STATE_MODAL;
> > + break;
> > + case SELECT_PIN_ASSIGMENT_C:
> > + case SELECT_PIN_ASSIGMENT_E:
> > + /* 4 line DP */
> > + mode = TYPEC_STATE_SAFE;
> > + break;
> > + case SELECT_PIN_ASSIGMENT_D:
> > + /* 2 line DP, 2 line USB */
> > + mode = TYPEC_MODE_USB3;
> > + break;
> > + default:
> > + mode = TYPEC_STATE_SAFE;
> > + break;
> > + }
> > +
> > + ctx->typec.pin_assignment = pin_assignment;
> > +
> > + dev_info(dev, "pin assignment %d, mux mode %d.\n",
> > + pin_assignment, mode);
> > +
> > + return typec_set_mode(ctx->typec.port, mode);
> > +}
> > +
> > +static void anx7411_set_usb_role(struct anx7411_data *ctx, enum usb_role role)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + if (!ctx->typec.role_sw) {
> > + dev_info(dev, "no usb role switch");
> > + return;
> > + }
> > +
> > + usb_role_switch_set_role(ctx->typec.role_sw, role);
> > +}
> > +
> > +static int anx7411_data_role_detect(struct anx7411_data *ctx)
> > +{
> > + int ret;
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
> > + if (ret < 0) {
> > + dev_err(dev, "read system status failed: %d.\n", ret);
> > + return ret;
> > + }
> > +
> > + ctx->typec.data_role = (ret & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
> > + ctx->typec.vconn_role = (ret & VCONN_STATUS) ? TYPEC_SOURCE : TYPEC_SINK;
> > +
> > + typec_set_data_role(ctx->typec.port, ctx->typec.data_role);
> > + typec_set_vconn_role(ctx->typec.port, ctx->typec.vconn_role);
> > +
> > + if (ctx->typec.data_role == TYPEC_HOST)
> > + anx7411_set_usb_role(ctx, USB_ROLE_HOST);
> > + else
> > + anx7411_set_usb_role(ctx, USB_ROLE_DEVICE);
> > +
> > + dev_info(dev, "data role change, status(0x%.02x), data role(%d)\n",
> > + ret, ctx->typec.data_role);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_power_role_detect(struct anx7411_data *ctx)
> > +{
> > + int ret;
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS);
> > + if (ret < 0) {
> > + dev_err(dev, "read system status failed: %d.\n", ret);
> > + return ret;
> > + }
> > +
> > + ctx->typec.power_role = (ret & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
> > +
> > + if (ctx->typec.power_role == TYPEC_SOURCE) {
> > + ctx->typec.request_current = DEF_1_5A;
> > + ctx->typec.request_voltage = DEF_5V;
> > + }
> > +
> > + dev_info(dev, "power role change, status(0x%.02x), power role(%d).\n",
> > + ret, ctx->typec.power_role);
> > + typec_set_pwr_role(ctx->typec.port, ctx->typec.power_role);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_cc_status_detect(struct anx7411_data *ctx)
> > +{
> > + anx7411_detect_cc_orientation(ctx);
> > + anx7411_detect_power_mode(ctx);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_partner_unregister_altmode(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + int i;
> > +
> > + dev_info(dev, "unregister typec altmode.\n");
> > +
> > + ctx->typec.dp_altmode_enter = 0;
> > + ctx->typec.cust_altmode_enter = 0;
> > +
> > + for (i = 0; i < MAX_ALTMODE; i++)
> > + if (ctx->typec.amode[i]) {
> > + typec_unregister_altmode(ctx->typec.amode[i]);
> > + ctx->typec.amode[i] = NULL;
> > + }
> > +
> > + ctx->typec.pin_assignment = 0;
> > + return 0;
> > +}
> > +
> > +static int anx7411_typec_register_altmode(struct anx7411_data *ctx,
> > + int svid, int vdo)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + struct typec_altmode_desc desc;
> > + int i;
> > +
> > + dev_info(dev, "register typec altmode -> vdo = 0x%x.\n", vdo);
> > + desc.svid = svid;
> > + desc.vdo = vdo;
> > +
> > + for (i = 0; i < MAX_ALTMODE; i++)
> > + if (!ctx->typec.amode[i])
> > + break;
> > +
> > + desc.mode = i + 1; /* start with 1 */
> > +
> > + if (i >= MAX_ALTMODE) {
> > + dev_info(dev, "no altmode space for registering\n");
> > + return -ENOMEM;
> > + }
> > +
> > + ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner,
> > + &desc);
> > + if (IS_ERR(ctx->typec.amode[i])) {
> > + dev_err(dev, "failed to register altmode\n");
> > + ctx->typec.amode[i] = NULL;
> > + return PTR_ERR(ctx->typec.amode);
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_unregister_partner(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + dev_info(dev, "unregister typec partner port.\n");
> > + if (ctx->typec.partner) {
> > + typec_unregister_partner(ctx->typec.partner);
> > + ctx->typec.partner = NULL;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_update_altmode(struct anx7411_data *ctx, int svid)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + int i;
> > +
> > + dev_info(dev, "update typec altmode to true.\n");
> > +
> > + if (svid == DP_SVID)
> > + ctx->typec.dp_altmode_enter = 1;
> > + else
> > + ctx->typec.cust_altmode_enter = 1;
> > +
> > + for (i = 0; i < MAX_ALTMODE; i++) {
> > + if (!ctx->typec.amode[i])
> > + continue;
> > +
> > + if (ctx->typec.amode[i]->svid == svid) {
> > + typec_altmode_update_active(ctx->typec.amode[i], true);
> > + typec_altmode_notify(ctx->typec.amode[i],
> > + ctx->typec.pin_assignment,
> > + &ctx->typec.data);
> > + break;
> > + }
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_register_altmode(struct anx7411_data *ctx,
> > + bool dp_altmode, u8 *buf)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + int ret;
> > + int svid;
> > + int mid;
> > +
> > + if (!ctx->typec.partner) {
> > + dev_info(dev, "partner not register yet, ignore altmode(%d)\n",
> > + dp_altmode);
> > + return 0;
> > + }
> > +
> > + svid = DP_SVID;
> > + if (dp_altmode) {
> > + dev_info(dev, "register DP altmode\n");
> > + mid = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
> > +
> > + return anx7411_typec_register_altmode(ctx, svid, mid);
> > + }
> > +
> > + svid = (buf[3] << 8) | buf[2];
> > + if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_ENTER_MODE)) {
> > + dev_info(dev, "svid(0x%x) enter mode\n", svid);
> > + return anx7411_update_altmode(ctx, svid);
> > + }
> > +
> > + if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_DIS_MOD)) {
> > + dev_info(dev, "ignore VDM message 0x%.02x%.02x\n",
> > + buf[0], buf[1]);
> > + return 0;
> > + }
> > +
> > + mid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24);
> > +
> > + ret = anx7411_typec_register_altmode(ctx, svid, mid);
> > + if (ctx->typec.cust_altmode_enter)
> > + ret |= anx7411_update_altmode(ctx, svid);
> > +
> > + return ret;
> > +}
> > +
> > +static int anx7411_parse_cmd(struct anx7411_data *ctx, u8 type, u8 *buf, u8 len)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + u8 cur_50ma, vol_100mv;
> > +
> > + dev_info(dev, "received message: type:0x%.02x, len:%d, buf[0]:%d\n",
> > + type, len, buf[0]);
> > +
> > + switch (type) {
> > + case TYPE_SRC_CAP:
> > + cur_50ma = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT);
> > + vol_100mv = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE);
> > + dev_info(dev, "get current(%dma), voltage(%dmv), power(%dmw)\n",
> > + cur_50ma * CURRENT_UNIT, vol_100mv * VOLTAGE_UNIT,
> > + cur_50ma * vol_100mv * 5);
> > +
> > + ctx->typec.request_voltage = vol_100mv * VOLTAGE_UNIT;
> > + ctx->typec.request_current = cur_50ma * CURRENT_UNIT;
> > +
> > +#ifndef CUST_SINK_CTRL_EN
> > + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> > + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> > + power_supply_changed(ctx->psy);
>
> I can not find that definition anywhere, which means this is dead
> block. Please drop this code, and the ifdef with it. Do the same for
> the other places where use the definition too.
OK
>
> > +#else
> > + /* Enable OCM automatically control sink_ctrl pin*/
> > + dev_info(dev, "Enable OCM auto control sink_ctrl pin\n");
> > + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
> > + anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) &
> > + ~SINK_CTRL_DIS_FLAG);
> > + if (vol_100mv != REQ_VOL_20V_IN_100MV)
> > + break;
> > +
> > + if (cur_50ma != REQ_CUR_2_25A_IN_50MA &&
> > + cur_50ma != REQ_CUR_3_25A_IN_50MA)
> > + break;
> > +
> > + /* Disable OCM automatically control sink_ctrl pin*/
> > + dev_info(dev, "Disable OCM auto control sink_ctrl pin\n");
> > + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_2,
> > + anx7411_reg_read(ctx->tcpc_client, FW_CTRL_2) |
> > + SINK_CTRL_DIS_FLAG);
> > +
> > + ctx->psy_online = ANX7411_PSY_FIXED_ONLINE;
> > + ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD;
> > + power_supply_changed(ctx->psy);
> > +#endif
> > + break;
> > + case TYPE_SNK_CAP:
> > + break;
> > + case TYPE_SVID:
> > + break;
> > + case TYPE_SNK_IDENTITY:
> > + break;
> > + case TYPE_GET_DP_ALT_ENTER:
> > + /* DP alt mode enter success */
> > + if (buf[0])
> > + anx7411_update_altmode(ctx, DP_SVID);
> > + break;
> > + case TYPE_DP_ALT_ENTER:
> > + /* Update DP altmode */
> > + anx7411_update_altmode(ctx, DP_SVID);
> > + break;
> > + case TYPE_OBJ_REQ:
> > + anx7411_detect_power_mode(ctx);
> > + break;
> > + case TYPE_DP_CONFIGURE:
> > + anx7411_set_mux(ctx, buf[1]);
> > + break;
> > + case TYPE_DP_DISCOVER_MODES_INFO:
> > + /* Make sure discover modes valid */
> > + if (buf[0] | buf[1])
> > + /* Register DP Altmode */
> > + anx7411_register_altmode(ctx, 1, buf);
> > + break;
> > + case TYPE_VDM:
> > + /* Register other altmode */
> > + anx7411_register_altmode(ctx, 0, buf);
> > + break;
> > + default:
> > + dev_info(dev, "ignore message(0x%.02x).\n", type);
> > + break;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static u8 checksum(struct device *dev, u8 *buf, u8 len)
> > +{
> > + u8 ret;
> > + u8 i;
> > +
> > + ret = 0;
>
> u8 ret = 0;
OK
>
> > + for (i = 0; i < len; i++)
> > + ret += buf[i];
> > +
> > + return ret;
> > +}
>
> This looks like some kind of a helper for something (not sure for
> what yet). You don't need to pass the device to it since you are not
> using it.
The crc is not compatible with kernel crc.
>
> > +static int anx7411_read_msg_ctrl_status(struct i2c_client *client)
> > +{
> > + return anx7411_reg_read(client, CMD_SEND_BUF);
> > +}
> > +
> > +static int anx7411_wait_msg_empty(struct i2c_client *client)
> > +{
> > + struct device *dev = &client->dev;
> > + int ret, val;
> > +
> > + ret = readx_poll_timeout(anx7411_read_msg_ctrl_status,
> > + client, val, (val < 0) || (val == 0),
> > + 2000, 2000 * 150);
> > + if (ret)
> > + dev_info(dev, "msg buffer busy\n");
> > +
> > + return ret;
> > +}
> > +
> > +static int anx7411_send_msg(struct anx7411_data *ctx, u8 type, u8 *buf, u8 size)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + u8 msg[MSG_LEN];
> > + u8 crc;
> > + int ret;
> > +
> > + if (size)
> > + memcpy(&msg[MSG_RAWDATA], buf, size);
> > + msg[MSG_TYPE] = type;
> > + msg[MSG_HEADER] = size + 1;
> > +
> > + crc = checksum(dev, msg, size + HEADER_LEN);
> > + msg[size + HEADER_LEN] = 0 - crc;
>
> That looks a bit odd...
>
> What is the checksum here? We have build-in crc function in kernel.
> Can't you use those?
Here we just used simple 8 bit crc checksum, not compatible with kernel
crc library.
>
> > + ret = anx7411_wait_msg_empty(ctx->spi_client);
> > + if (ret) {
> > + dev_info(dev, "firmware busy, ret(0x%.02x)\n", ret);
> > + return ret;
> > + }
> > +
> > + anx7411_reg_block_write(ctx->spi_client,
> > + CMD_SEND_BUF + 1, size + HEADER_LEN,
> > + &msg[MSG_TYPE]);
> > + return anx7411_reg_write(ctx->spi_client, CMD_SEND_BUF,
> > + msg[MSG_HEADER]);
> > +}
> > +
> > +static int anx7411_process_cmd(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + u8 msg[MSG_LEN];
> > + u8 len;
> > + u8 crc;
> > +
> > + /* Read message from firmware */
> > + anx7411_reg_block_read(ctx->spi_client, CMD_RECV_BUF, MSG_LEN, msg);
> > + anx7411_reg_write(ctx->spi_client, CMD_RECV_BUF, 0);
> > +
> > + if (!msg[MSG_HEADER]) {
> > + dev_info(dev, "message empty\n");
> > + return 0;
> > + }
> > +
> > + len = msg[MSG_HEADER] & MSG_LEN_MASK;
> > + crc = checksum(dev, msg, len + HEADER_LEN);
> > + if (crc) {
> > + dev_err(dev, "message error crc(0x%.02x)\n", crc);
> > + return -1;
>
> What does -1 mean here?
I'll change it.
>
> > + }
> > +
> > + return anx7411_parse_cmd(ctx, msg[MSG_TYPE],
> > + &msg[MSG_RAWDATA], len - 1);
> > +}
> > +
> > +static void anx7411_translate_payload(struct device *dev, __le32 *payload,
> > + u32 *pdo, int nr, const char *type)
> > +{
> > + int i;
> > +
> > + dev_info(dev, "convert %s pdos to little endian format\n", type);
> > + if (nr > PDO_MAX_OBJECTS) {
> > + dev_err(dev, "nr(%d) exceed PDO_MAX_OBJECTS(%d)\n",
> > + nr, PDO_MAX_OBJECTS);
> > +
> > + return;
> > + }
> > +
> > + for (i = 0; i < nr; i++)
> > + payload[i] = cpu_to_le32(pdo[i]);
> > +}
> > +
> > +static void anx7411_config(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + struct typec_params *typecp = &ctx->typec;
> > + __le32 payload[PDO_MAX_OBJECTS];
> > +
> > + dev_info(dev, "initial anx7411\n");
> > + /* Config PD FW work under PD 2.0 */
> > + anx7411_reg_write(ctx->spi_client, PD_REV_INIT, PD_REV20);
> > + anx7411_reg_write(ctx->tcpc_client, FW_CTRL_0,
> > + UNSTRUCT_VDM_EN | DELAY_200MS |
> > + VSAFE1 | FRS_EN);
> > + anx7411_reg_write(ctx->spi_client, FW_CTRL_1,
> > + AUTO_PD_EN | FORCE_SEND_RDO);
> > +
> > + /* Set VBUS current threshold */
> > + anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_H, 0xff);
> > + anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_L, 0x03);
> > +
> > + /* Fix dongle compatible issue */
> > + anx7411_reg_write(ctx->tcpc_client, FW_PARAM,
> > + anx7411_reg_read(ctx->tcpc_client, FW_PARAM) |
> > + DONGLE_IOP);
> > + anx7411_reg_write(ctx->spi_client, INT_MASK, 0);
> > +
> > + anx7411_reg_write(ctx->spi_client, PD_EXT_MSG_CTRL, 0xFF);
> > +
> > + if (typecp->caps_flags & HAS_SOURCE_CAP) {
> > + anx7411_translate_payload(dev, payload, typecp->src_pdo,
> > + typecp->src_pdo_nr, "source");
> > + anx7411_send_msg(ctx, TYPE_SRC_CAP, (u8 *)&payload,
> > + typecp->src_pdo_nr * 4);
> > + anx7411_send_msg(ctx, TYPE_SNK_IDENTITY, snk_identity,
> > + sizeof(snk_identity));
> > + anx7411_send_msg(ctx, TYPE_SET_SNK_DP_CAP, dp_caps,
> > + sizeof(dp_caps));
> > + }
> > +
> > + if (typecp->caps_flags & HAS_SINK_CAP) {
> > + anx7411_translate_payload(dev, payload, typecp->sink_pdo,
> > + typecp->sink_pdo_nr, "sink");
> > + anx7411_send_msg(ctx, TYPE_SNK_CAP, (u8 *)&payload,
> > + typecp->sink_pdo_nr * 4);
> > + }
> > +
> > + if (typecp->caps_flags & HAS_SINK_WATT) {
> > + if (typecp->sink_watt) {
> > + anx7411_reg_write(ctx->spi_client, MAX_POWER,
> > + typecp->sink_watt);
> > + /* Set min power to 1W */
> > + anx7411_reg_write(ctx->spi_client, MIN_POWER, 2);
> > + }
> > +
> > + if (typecp->sink_voltage)
> > + anx7411_reg_write(ctx->spi_client, MAX_VOLTAGE,
> > + typecp->sink_voltage);
> > + }
> > +
> > + if (!typecp->caps_flags)
> > + usleep_range(5000, 6000);
> > +
> > + ctx->fw_version = anx7411_reg_read(ctx->spi_client, FW_VER);
> > + ctx->fw_subversion = anx7411_reg_read(ctx->spi_client,
> > + FW_SUBVER);
> > + dev_info(dev, "power on, ocm version %.02x%.02x\n",
> > + ctx->fw_version, ctx->fw_subversion);
> > +}
> > +
> > +static void anx7411_chip_standby(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->tcpc_client->dev;
> > +
> > + dev_info(dev, "Anx7411 enter into standby mode.\n");
> > +
> > + anx7411_reg_write(ctx->spi_client, OCM_CTRL_0,
> > + anx7411_reg_read(ctx->spi_client, OCM_CTRL_0) |
> > + OCM_RESET);
> > + anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80);
> > + /* Set TCPC to RD and DRP enable */
> > + anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CONTROL, 0x4A);
> > + /* Send DRP toggle command */
> > + anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0x99);
>
> So that would be Look4Connection command, no?
Yes it is Look4Connection command
>
> > + /* Send TCPC enter standby command */
> > + anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, 0xFF);
>
> And that is the I2C Idle command.
>
> Those commands are already defined in drivers/usb/typec/tcpm/tcpci.h.
> I would really prefer that we use the same definitions everywhere. We
> probable should have them in a file include/linux/usb/tcpci.h.
The tcpci.h is not in include/linux/usb/tcpci.h, it exist at
drivers/usb/typec/tcpm/tcpci.h
>
> > +}
> > +
> > +static void anx7411_work_func(struct work_struct *work)
> > +{
> > + int ret;
> > + u8 buf[STATUS_LEN];
> > + u8 int_change, int_status, alert0, alert1;
>
> Sorry to be picky here, but it would be easier to read this code if
> you introduced each of those registers on its own line. And please try
> to use the same style also when introducing the variable in every
> function.
These are interrupt status registers.
>
> > + struct anx7411_data *ctx = container_of(work,
> > + struct anx7411_data, work);
>
> One line is enough here.
OK
>
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + mutex_lock(&ctx->lock);
> > +
> > + /* Read interrupt change status */
> > + ret = anx7411_reg_block_read(ctx->spi_client, INT_STS,
> > + STATUS_LEN, buf);
>
> Ditto.
OK
>
> > + if (ret < 0) {
> > + /* Power standby mode, just return */
> > + goto unlock;
> > + }
> > + int_change = buf[0];
> > + int_status = buf[1];
> > +
> > + /* Read alert register */
> > + ret = anx7411_reg_block_read(ctx->tcpc_client, ALERT_0,
> > + STATUS_LEN, buf);
> > + if (ret < 0) {
> > + dev_err(dev, "failed to read register(%d)\n", ALERT_0);
> > + goto unlock;
> > + }
> > + alert0 = buf[0];
> > + alert1 = buf[1];
> > +
> > + /* Clear interrupt and alert status */
> > + anx7411_reg_write(ctx->spi_client, INT_STS, 0);
> > + anx7411_reg_write(ctx->tcpc_client, ALERT_0, alert0);
> > + anx7411_reg_write(ctx->tcpc_client, ALERT_1, alert1);
> > +
> > + dev_info(dev, "int_change(0x%.02x), int_status(0x%.02x).\n",
> > + int_change, int_status);
> > + dev_info(dev, "alert0(0x%.02x), alert1(0x%.02x).\n", alert0, alert1);
> > +
> > + if (alert1 & INTP_POW_OFF) {
> > + anx7411_partner_unregister_altmode(ctx);
> > + anx7411_set_usb_role(ctx, USB_ROLE_NONE);
> > + anx7411_unregister_partner(ctx);
> > + ctx->psy_online = ANX7411_PSY_OFFLINE;
> > + ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
> > + ctx->typec.request_voltage = 0;
> > + ctx->typec.request_current = 0;
> > + power_supply_changed(ctx->psy);
> > + anx7411_chip_standby(ctx);
> > + goto unlock;
> > + }
> > +
> > + if ((alert0 & SOFTWARE_INT) && (int_change & OCM_BOOT_UP)) {
> > + anx7411_config(ctx);
> > + anx7411_data_role_detect(ctx);
> > + anx7411_power_role_detect(ctx);
> > + anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
> > + }
> > +
> > + if (alert0 & RECEIVED_MSG)
> > + anx7411_process_cmd(ctx);
> > +
> > + ret = (int_status & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE;
> > + if (ctx->typec.data_role != ret)
> > + anx7411_data_role_detect(ctx);
> > +
> > + ret = (int_status & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE;
> > + if (ctx->typec.power_role != ret)
> > + anx7411_power_role_detect(ctx);
> > +
> > + if ((alert0 & SOFTWARE_INT) && (int_change & CC_STATUS_CHANGE))
> > + anx7411_cc_status_detect(ctx);
> > +
> > +unlock:
> > + mutex_unlock(&ctx->lock);
> > +}
> > +
> > +static irqreturn_t anx7411_intr_isr(int irq, void *data)
> > +{
> > + struct anx7411_data *ctx = (struct anx7411_data *)data;
> > +
> > + queue_work(ctx->workqueue, &ctx->work);
> > +
> > + return IRQ_HANDLED;
> > +}
> > +
> > +static int anx7411_register_i2c_dummy_clients(struct anx7411_data *ctx,
> > + struct i2c_client *client)
> > +{
> > + int i;
> > + u8 spi_addr;
> > +
> > + for (i = 0; i < sizeof(anx7411_i2c_addr); i++) {
> > + if (client->addr == (anx7411_i2c_addr[i].tcpc_address >> 1)) {
> > + spi_addr = anx7411_i2c_addr[i].spi_address >> 1;
> > + ctx->spi_client = i2c_new_dummy_device(client->adapter,
> > + spi_addr);
> > + if (ctx->spi_client) {
> > + dev_info(&client->dev, "found spi slave\n");
> > + return 0;
> > + }
> > + }
> > + }
> > +
> > + dev_err(&client->dev, "unable to get SPI slave\n");
> > + return -ENOMEM;
> > +}
>
> To which bus is the device actually attached to, SPI or I2C?
>
> I'm not sure I understand what is going on here?
I2C bus, our internal named this 256 registers as spi space(these
register attached on internal SPI bus, so we named it spi_client)
>
> > +static void anx7411_port_unregister_altmodes(struct typec_altmode **adev)
> > +{
> > + int i;
> > +
> > + for (i = 0; i < MAX_ALTMODE; i++)
> > + if (adev[i]) {
> > + typec_unregister_altmode(adev[i]);
> > + adev[i] = NULL;
> > + }
> > +}
> > +
> > +static int anx7411_usb_mux_set(struct typec_mux *mux,
> > + struct typec_mux_state *state)
> > +{
> > + struct anx7411_data *ctx = typec_mux_get_drvdata(mux);
> > + struct device *dev = &ctx->spi_client->dev;
> > + int has_dp;
> > +
> > + has_dp = (state->alt && state->alt->svid == USB_TYPEC_DP_SID &&
> > + state->alt->mode == USB_TYPEC_DP_MODE);
> > + dev_info(dev, "callback: mux set: %d", has_dp);
> > + if (!has_dp) {
> > + dev_info(dev, "dp altmode not register\n");
> > + return 0;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_usb_set_orientation(struct typec_switch *sw,
> > + enum typec_orientation orientation)
> > +{
> > + struct anx7411_data *ctx = typec_switch_get_drvdata(sw);
> > + struct device *dev = &ctx->spi_client->dev;
> > +
> > + dev_info(dev, "callback: orientation set %d\n", orientation);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_register_switch(struct anx7411_data *ctx,
> > + struct device *dev,
> > + struct fwnode_handle *fwnode)
> > +{
> > + struct typec_switch_desc sw_desc = { };
> > +
> > + sw_desc.fwnode = fwnode;
> > + sw_desc.drvdata = ctx;
> > + sw_desc.name = fwnode_get_name(fwnode);
> > + sw_desc.set = anx7411_usb_set_orientation;
> > +
> > + ctx->typec.typec_switch = typec_switch_register(dev, &sw_desc);
> > + if (IS_ERR(ctx->typec.typec_switch)) {
> > + dev_err(dev, "switch register failed\n");
> > + return PTR_ERR(ctx->typec.typec_switch);
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_register_mux(struct anx7411_data *ctx,
> > + struct device *dev,
> > + struct fwnode_handle *fwnode)
> > +{
> > + struct typec_mux_desc mux_desc = { };
> > +
> > + mux_desc.fwnode = fwnode;
> > + mux_desc.drvdata = ctx;
> > + mux_desc.name = fwnode_get_name(fwnode);
> > + mux_desc.set = anx7411_usb_mux_set;
> > +
> > + ctx->typec.typec_mux = typec_mux_register(dev, &mux_desc);
> > + if (IS_ERR(ctx->typec.typec_mux)) {
> > + dev_err(dev, "mux register failed\n");
> > + return PTR_ERR(ctx->typec.typec_mux);
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static void anx7411_unregister_mux(struct anx7411_data *ctx)
> > +{
> > + if (ctx->typec.typec_mux) {
> > + typec_mux_unregister(ctx->typec.typec_mux);
> > + ctx->typec.typec_mux = NULL;
> > + }
> > +}
> > +
> > +static void anx7411_unregister_switch(struct anx7411_data *ctx)
> > +{
> > + if (ctx->typec.typec_switch) {
> > + typec_switch_unregister(ctx->typec.typec_switch);
> > + ctx->typec.typec_switch = NULL;
> > + }
> > +}
> > +
> > +static int anx7411_typec_switch_probe(struct anx7411_data *ctx,
> > + struct device *dev)
> > +{
> > + int ret;
> > + struct device_node *node;
> > +
> > + node = of_find_node_by_name(dev->of_node, "orientation_switch");
> > + if (!node) {
> > + dev_info(dev, "no typec switch exist\n");
> > + return 0;
> > + }
> > +
> > + dev_info(dev, "register switch\n");
> > + ret = anx7411_register_switch(ctx, dev, &node->fwnode);
> > + if (ret) {
> > + dev_err(dev, "failed register switch");
> > + return ret;
> > + }
> > +
> > + node = of_find_node_by_name(dev->of_node, "mode_switch");
> > + if (!node) {
> > + dev_err(dev, "no typec mux exist");
> > + ret = -ENODEV;
> > + goto unregister_switch;
> > + }
> > +
> > + dev_info(dev, "register mode switch\n");
> > + ret = anx7411_register_mux(ctx, dev, &node->fwnode);
> > + if (ret) {
> > + dev_err(dev, "failed register mode switch");
> > + ret = -ENODEV;
> > + goto unregister_switch;
> > + }
> > +
> > + return 0;
> > +
> > +unregister_switch:
> > + anx7411_unregister_switch(ctx);
> > +
> > + return ret;
> > +}
> > +
> > +static int anx7411_typec_port_probe(struct anx7411_data *ctx,
> > + struct device *dev)
> > +{
> > + struct typec_capability *cap = &ctx->typec.caps;
> > + struct typec_params *typecp = &ctx->typec;
> > + struct fwnode_handle *fwnode;
> > + const char *buf;
> > + int ret, i;
> > +
> > + fwnode = device_get_named_child_node(dev, "connector");
> > + if (!fwnode)
> > + return -EINVAL;
> > +
> > + ret = fwnode_property_read_string(fwnode, "power-role", &buf);
> > + if (ret) {
> > + dev_err(dev, "power-role not found: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = typec_find_port_power_role(buf);
> > + if (ret < 0)
> > + return ret;
> > + cap->type = ret;
> > +
> > + ret = fwnode_property_read_string(fwnode, "data-role", &buf);
> > + if (ret) {
> > + dev_err(dev, "data-role not found: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = typec_find_port_data_role(buf);
> > + if (ret < 0)
> > + return ret;
> > + cap->data = ret;
> > +
> > + ret = fwnode_property_read_string(fwnode, "try-power-role", &buf);
> > + if (ret) {
> > + dev_err(dev, "try-power-role not found: %d\n", ret);
> > + return ret;
> > + }
> > +
> > + ret = typec_find_power_role(buf);
> > + if (ret < 0)
> > + return ret;
> > + cap->prefer_role = ret;
> > +
> > + /* Get source pdos */
> > + ret = fwnode_property_count_u32(fwnode, "source-pdos");
> > + if (ret > 0) {
> > + dev_info(dev, "%d source-pdos found\n", ret);
> > + typecp->src_pdo_nr = min(ret, PDO_MAX_OBJECTS);
> > + ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
> > + typecp->src_pdo,
> > + typecp->src_pdo_nr);
> > + if (ret < 0) {
> > + dev_err(dev, "source cap validate failed: %d\n", ret);
> > + return -EINVAL;
> > + }
> > +
> > + typecp->caps_flags |= HAS_SOURCE_CAP;
> > + }
> > +
> > + ret = fwnode_property_count_u32(fwnode, "sink-pdos");
> > + if (ret > 0) {
> > + dev_info(dev, "%d sink-pdos found\n", ret);
> > + typecp->sink_pdo_nr = min(ret, PDO_MAX_OBJECTS);
> > + ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
> > + typecp->sink_pdo,
> > + typecp->sink_pdo_nr);
> > + if (ret < 0) {
> > + dev_err(dev, "sink cap validate failed: %d\n", ret);
> > + return -EINVAL;
> > + }
> > +
> > + for (i = 0; i < typecp->sink_pdo_nr; i++) {
> > + ret = 0;
> > + switch (pdo_type(typecp->sink_pdo[i])) {
> > + case PDO_TYPE_FIXED:
> > + ret = pdo_fixed_voltage(typecp->sink_pdo[i]);
> > + break;
> > + case PDO_TYPE_BATT:
> > + case PDO_TYPE_VAR:
> > + ret = pdo_max_voltage(typecp->sink_pdo[i]);
> > + break;
> > + case PDO_TYPE_APDO:
> > + default:
> > + ret = 0;
> > + break;
> > + }
> > +
> > + /* 100mv per unit */
> > + typecp->sink_voltage = max(5000, ret) / 100;
> > + }
> > +
> > + typecp->caps_flags |= HAS_SINK_CAP;
> > + }
> > +
> > + if (!fwnode_property_read_u32(fwnode, "op-sink-microwatt", &ret)) {
> > + dev_info(dev, "%d sink-microwat found\n", ret);
> > + typecp->sink_watt = ret / 500000; /* 500mw per unit */
> > + typecp->caps_flags |= HAS_SINK_WATT;
> > + }
> > +
> > + cap->fwnode = fwnode;
> > +
> > + ctx->typec.role_sw = usb_role_switch_get(dev);
> > + if (IS_ERR(ctx->typec.role_sw)) {
> > + dev_err(dev, "USB role switch not found.\n");
> > + ctx->typec.role_sw = NULL;
> > + }
> > +
> > + ctx->typec.port = typec_register_port(dev, cap);
> > + if (IS_ERR(ctx->typec.port)) {
> > + ret = PTR_ERR(ctx->typec.port);
> > + ctx->typec.port = NULL;
> > + dev_err(dev, "Failed to register type c port %d\n", ret);
> > + return ret;
> > + }
> > +
> > + typec_port_register_altmodes(ctx->typec.port, NULL, ctx,
> > + ctx->typec.port_amode,
> > + MAX_ALTMODE);
> > +
> > + return 0;
> > +}
> > +
> > +static int anx7411_typec_check_connection(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->spi_client->dev;
> > + int ret;
> > +
> > + ret = anx7411_reg_read(ctx->spi_client, FW_VER);
> > + if (ret < 0) {
> > + /* No device attached in typec port */
> > + dev_info(dev, "no connection detect.\n");
> > + return 0;
> > + }
> > +
> > + dev_info(dev, "detected typec connected, ocm ver:0x%.02x.\n", ret);
> > + dev_info(dev, "force clear interrupt and alert.\n");
> > + /* Clear interrupt and alert status */
> > + anx7411_reg_write(ctx->spi_client, INT_STS, 0);
> > + anx7411_reg_write(ctx->tcpc_client, ALERT_0, 0xFF);
> > + anx7411_reg_write(ctx->tcpc_client, ALERT_1, 0xFF);
> > +
> > + anx7411_cc_status_detect(ctx);
> > +
> > + anx7411_power_role_detect(ctx);
> > +
> > + dev_info(dev, "PD %s voltage(%d), current(%d).\n",
> > + ctx->typec.power_role == TYPEC_SOURCE ? "supply" : "request",
> > + ctx->typec.request_voltage, ctx->typec.request_current);
> > +
> > + anx7411_data_role_detect(ctx);
> > +
> > + anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C);
> > +
> > + anx7411_send_msg(ctx, TYPE_GET_DP_ALT_ENTER, NULL, 0);
> > +
> > + anx7411_send_msg(ctx, TYPE_GET_DP_DISCOVER_MODES_INFO, NULL, 0);
> > +
> > + return 0;
> > +}
> > +
> > +static int __maybe_unused anx7411_runtime_pm_suspend(struct device *dev)
> > +{
> > + struct anx7411_data *ctx = dev_get_drvdata(dev);
> > +
> > + mutex_lock(&ctx->lock);
> > +
> > + anx7411_partner_unregister_altmode(ctx);
> > +
> > + if (ctx->typec.partner)
> > + anx7411_unregister_partner(ctx);
> > +
> > + mutex_unlock(&ctx->lock);
> > +
> > + return 0;
> > +}
> > +
> > +static int __maybe_unused anx7411_runtime_pm_resume(struct device *dev)
> > +{
> > + struct anx7411_data *ctx = dev_get_drvdata(dev);
> > +
> > + mutex_lock(&ctx->lock);
> > + /* Detect PD connection */
> > + anx7411_typec_check_connection(ctx);
> > +
> > + mutex_unlock(&ctx->lock);
> > +
> > + return 0;
> > +}
> > +
> > +static const struct dev_pm_ops anx7411_pm_ops = {
> > + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> > + pm_runtime_force_resume)
> > + SET_RUNTIME_PM_OPS(anx7411_runtime_pm_suspend,
> > + anx7411_runtime_pm_resume, NULL)
> > +};
> > +
> > +static void anx7411_get_gpio_irq(struct anx7411_data *ctx)
> > +{
> > + struct device *dev = &ctx->tcpc_client->dev;
> > +
> > + ctx->intp_gpiod = devm_gpiod_get_optional(dev, "interrupt", GPIOD_IN);
> > + if (!ctx->intp_gpiod) {
> > + dev_info(dev, "no interrupt gpio property\n");
> > + return;
> > + }
> > +
> > + ctx->intp_irq = gpiod_to_irq(ctx->intp_gpiod);
> > + dev_info(dev, "request gpio(%d) irq(%d)\n",
> > + desc_to_gpio(ctx->intp_gpiod), ctx->intp_irq);
> > +
> > + if (!ctx->intp_irq)
> > + dev_err(dev, "failed to get GPIO IRQ\n");
> > +}
> > +
> > +static const char *anx7411_psy_name_prefix = "anx7411-source-psy-";
> > +
> > +static enum power_supply_usb_type anx7411_psy_usb_types[] = {
> > + POWER_SUPPLY_USB_TYPE_C,
> > + POWER_SUPPLY_USB_TYPE_PD,
> > + POWER_SUPPLY_USB_TYPE_PD_PPS,
> > +};
> > +
> > +static enum power_supply_property anx7411_psy_props[] = {
> > + POWER_SUPPLY_PROP_USB_TYPE,
> > + POWER_SUPPLY_PROP_ONLINE,
> > + POWER_SUPPLY_PROP_VOLTAGE_MIN,
> > + POWER_SUPPLY_PROP_VOLTAGE_MAX,
> > + POWER_SUPPLY_PROP_VOLTAGE_NOW,
> > + POWER_SUPPLY_PROP_CURRENT_MAX,
> > + POWER_SUPPLY_PROP_CURRENT_NOW,
> > +};
> > +
> > +static int anx7411_psy_set_prop(struct power_supply *psy,
> > + enum power_supply_property psp,
> > + const union power_supply_propval *val)
> > +{
> > + struct anx7411_data *ctx = power_supply_get_drvdata(psy);
> > + int ret = 0;
> > +
> > + if (psp == POWER_SUPPLY_PROP_ONLINE) {
> > + pr_info("[DEBUG] set prop -> %d\n", val->intval);
> > + ctx->psy_online = val->intval;
> > +#ifdef CUST_SINK_CTRL_EN
> > + if (ctx->psy_online == ANX7411_PSY_HANG)
> > + anx7411_reg_write(ctx->tcpc_client,
> > + TCPC_COMMAND,
> > + SINK_CTRL_DIS);
> > + else if (ctx->psy_online)
> > + anx7411_reg_write(ctx->tcpc_client,
> > + TCPC_COMMAND,
> > + SINK_CTRL_EN);
> > +#endif
> > + } else {
> > + ret = -EINVAL;
> > + }
> > +
> > + power_supply_changed(ctx->psy);
> > + return ret;
> > +}
> > +
> > +static int anx7411_psy_prop_writeable(struct power_supply *psy,
> > + enum power_supply_property psp)
> > +{
> > + return (psp == POWER_SUPPLY_PROP_ONLINE) ? 1 : 0;
>
> return psp == POWER_SUPPLY_PROP_ONLINE;
OK
>
> > +}
> > +
> > +static int anx7411_psy_get_prop(struct power_supply *psy,
> > + enum power_supply_property psp,
> > + union power_supply_propval *val)
> > +{
> > + struct anx7411_data *ctx = power_supply_get_drvdata(psy);
> > + int ret = 0;
> > +
> > + switch (psp) {
> > + case POWER_SUPPLY_PROP_USB_TYPE:
> > + val->intval = ctx->usb_type;
> > + break;
> > + case POWER_SUPPLY_PROP_ONLINE:
> > + val->intval = ctx->psy_online;
> > + break;
> > + case POWER_SUPPLY_PROP_VOLTAGE_NOW:
> > + case POWER_SUPPLY_PROP_VOLTAGE_MIN:
> > + case POWER_SUPPLY_PROP_VOLTAGE_MAX:
> > + val->intval = (ctx->psy_online) ?
> > + ctx->typec.request_voltage * 1000 : 0;
> > + break;
> > + case POWER_SUPPLY_PROP_CURRENT_NOW:
> > + case POWER_SUPPLY_PROP_CURRENT_MAX:
> > + val->intval = (ctx->psy_online) ?
> > + ctx->typec.request_current * 1000 : 0;
> > + break;
> > + default:
> > + ret = -EINVAL;
> > + break;
> > + }
> > + return ret;
> > +}
> > +
> > +static int anx7411_psy_register(struct anx7411_data *ctx)
> > +{
> > + struct power_supply_config psy_cfg = {};
> > + const char *port_dev_name = dev_name(ctx->dev);
> > + size_t psy_name_len = strlen(anx7411_psy_name_prefix) +
> > + strlen(port_dev_name) + 1;
> > + char *psy_name;
> > + struct power_supply_desc *psy_desc = &ctx->psy_desc;
> > +
> > + psy_cfg.drv_data = ctx;
> > + psy_cfg.fwnode = dev_fwnode(ctx->dev);
> > + psy_name = devm_kzalloc(ctx->dev, psy_name_len, GFP_KERNEL);
> > + if (!psy_name) {
> > + dev_warn(ctx->dev, "unable to alloc psy memory\n");
> > + return -ENOMEM;
> > + }
> > +
> > + snprintf(psy_name, psy_name_len, "%s%s", anx7411_psy_name_prefix,
> > + port_dev_name);
> > +
> > + psy_desc->name = psy_name;
> > + psy_desc->type = POWER_SUPPLY_TYPE_USB;
> > + psy_desc->usb_types = anx7411_psy_usb_types;
> > + psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types);
> > + psy_desc->properties = anx7411_psy_props,
> > + psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props),
> > +
> > + psy_desc->get_property = anx7411_psy_get_prop,
> > + psy_desc->set_property = anx7411_psy_set_prop,
> > + psy_desc->property_is_writeable = anx7411_psy_prop_writeable,
> > +
> > + ctx->usb_type = POWER_SUPPLY_USB_TYPE_C;
> > + ctx->psy = devm_power_supply_register(ctx->dev, psy_desc, &psy_cfg);
> > +
> > + if (IS_ERR(ctx->psy))
> > + dev_warn(ctx->dev, "unable to register psy\n");
> > +
> > + return PTR_ERR_OR_ZERO(ctx->psy);
> > +}
> > +
> > +static int anx7411_i2c_probe(struct i2c_client *client,
> > + const struct i2c_device_id *id)
> > +{
> > + struct anx7411_data *plat;
> > + struct device *dev = &client->dev;
> > + int ret;
> > +
> > + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
> > + return -ENODEV;
> > +
> > + plat = kzalloc(sizeof(*plat), GFP_KERNEL);
> > + if (!plat)
> > + return -ENOMEM;
>
> Memory leak. I think you wanted to use devm_kzalloc() here, right?
>
OK
> > + plat->tcpc_client = client;
> > + i2c_set_clientdata(client, plat);
> > +
> > + mutex_init(&plat->lock);
> > +
> > + ret = anx7411_register_i2c_dummy_clients(plat, client);
> > + if (ret) {
> > + dev_err(dev, "fail to reserve I2C bus\n");
> > + return ret;
> > + }
> > +
> > + ret = anx7411_typec_switch_probe(plat, dev);
> > + if (ret) {
> > + dev_err(dev, "fail to probe typec switch\n");
> > + goto free_i2c_dummy;
> > + }
> > +
> > + ret = anx7411_typec_port_probe(plat, dev);
> > + if (ret) {
> > + dev_err(dev, "fail to probe typec property.\n");
> > + ret = -ENODEV;
> > + goto free_typec_switch;
> > + }
> > +
> > + plat->intp_irq = client->irq;
> > + if (!client->irq) {
> > + dev_info(dev, "no default interrupt IRQ, probe GPIO interrupt");
> > + anx7411_get_gpio_irq(plat);
> > + }
> > +
> > + if (!plat->intp_irq) {
> > + dev_err(dev, "fail to get interrupt IRQ\n");
> > + goto free_typec_port;
> > + }
> > +
> > + plat->dev = dev;
> > + plat->psy_online = ANX7411_PSY_OFFLINE;
> > + anx7411_psy_register(plat);
> > +
> > + if (plat->intp_irq) {
> > + INIT_WORK(&plat->work, anx7411_work_func);
> > + plat->workqueue = alloc_workqueue("anx7411_work",
> > + WQ_FREEZABLE |
> > + WQ_MEM_RECLAIM,
> > + 1);
> > + if (!plat->workqueue) {
> > + dev_err(dev, "fail to create work queue\n");
> > + ret = -ENOMEM;
> > + goto free_typec_port;
> > + }
> > +
> > + ret = devm_request_threaded_irq(dev, plat->intp_irq,
> > + NULL, anx7411_intr_isr,
> > + IRQF_TRIGGER_FALLING |
> > + IRQF_ONESHOT,
> > + "anx7411-intp", plat);
> > + if (ret) {
> > + dev_err(dev, "fail to request irq\n");
> > + goto free_wq;
> > + }
> > +
> > + dev_info(dev, "registered irq %d handler\n", plat->intp_irq);
> > + }
> > +
> > + anx7411_typec_check_connection(plat);
> > +
> > + pm_runtime_enable(dev);
> > +
> > + return 0;
> > +
> > +free_wq:
> > + destroy_workqueue(plat->workqueue);
> > +
> > +free_typec_port:
> > + typec_unregister_port(plat->typec.port);
> > + anx7411_port_unregister_altmodes(plat->typec.port_amode);
> > +
> > +free_typec_switch:
> > + anx7411_unregister_switch(plat);
> > + anx7411_unregister_mux(plat);
> > +
> > +free_i2c_dummy:
> > + i2c_unregister_device(plat->spi_client);
> > +
> > + return ret;
> > +}
> > +
> > +static int anx7411_i2c_remove(struct i2c_client *client)
> > +{
> > + struct anx7411_data *plat = i2c_get_clientdata(client);
> > +
>
> Empty line.
>
> > + anx7411_partner_unregister_altmode(plat);
> > + anx7411_unregister_partner(plat);
> > +
> > + if (plat->workqueue)
> > + destroy_workqueue(plat->workqueue);
> > +
> > + if (plat->spi_client)
> > + i2c_unregister_device(plat->spi_client);
> > +
> > + if (plat->typec.role_sw)
> > + usb_role_switch_put(plat->typec.role_sw);
> > +
> > + anx7411_unregister_mux(plat);
> > +
> > + anx7411_unregister_switch(plat);
> > +
> > + if (plat->typec.port)
> > + typec_unregister_port(plat->typec.port);
> > +
> > + anx7411_port_unregister_altmodes(plat->typec.port_amode);
> > +
> > + return 0;
> > +}
> > +
> > +static const struct i2c_device_id anx7411_id[] = {
> > + {"anx7411", 0},
> > + {}
> > +};
> > +
> > +MODULE_DEVICE_TABLE(i2c, anx7411_id);
> > +
> > +static const struct of_device_id anx_match_table[] = {
> > + {.compatible = "analogix,anx7411",},
> > + {},
> > +};
> > +
> > +static struct i2c_driver anx7411_driver = {
> > + .driver = {
> > + .name = "anx7411",
> > + .of_match_table = anx_match_table,
> > + .pm = &anx7411_pm_ops,
> > + },
> > + .probe = anx7411_i2c_probe,
> > + .remove = anx7411_i2c_remove,
> > +
> > + .id_table = anx7411_id,
> > +};
> > +
> > +module_i2c_driver(anx7411_driver);
> > +
> > +MODULE_DESCRIPTION("Anx7411 USB Type-C PD driver");
> > +MODULE_AUTHOR("Xin Ji <[email protected]>");
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_VERSION("0.1.4");
>
> It seems that there are a few quality issues, and some duplication with
> the tcpci.c driver.
Yes, but the driver cannot call the tcpci interface.
Thanks for review, I'll update the next patch this week after tested.
Thanks,
Xin
>
> thanks,
>
> --
> heikki