Add support for using with both wl12xx and wl18xx.
- all wilink family needs special init command for entering wspi mode.
extra clock cycles should be sent after the spi init command while the
cs pin is high.
- Use inverted chip select for sending a dummy 4 bytes command that
completes the init stage.
Signed-off-by: Eyal Reizer <[email protected]>
---
v1->v2:update device tree bindings configuration
v2->v3:revert from manual gpio manipulation. use inverted chip select instead
for sending the extra init cycle which, achieves the same hardware purpose.
update device tree bindings docucmentation accordingly
v3->v4: Remove redundant data form binding documentation and fix chip select
number mismatch in wl1271 example
v4->v5: Rebase on top of head of wireless-drivers-next
.../bindings/net/wireless/ti,wlcore,spi.txt | 41 +++++--
drivers/net/wireless/ti/wlcore/spi.c | 123 ++++++++++++++++++---
2 files changed, 137 insertions(+), 27 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
index 9180724..8f9ced0 100644
--- a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
+++ b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
@@ -1,19 +1,30 @@
-* Texas Instruments wl1271 wireless lan controller
+* Texas Instruments wl12xx/wl18xx wireless lan controller
-The wl1271 chip can be connected via SPI or via SDIO. This
+The wl12xx/wl18xx chips can be connected via SPI or via SDIO. This
document describes the binding for the SPI connected chip.
Required properties:
-- compatible : Should be "ti,wl1271"
+- compatible : Should be one of the following:
+ * "ti,wl1271"
+ * "ti,wl1273"
+ * "ti,wl1281"
+ * "ti,wl1283"
+ * "ti,wl1801"
+ * "ti,wl1805"
+ * "ti,wl1807"
+ * "ti,wl1831"
+ * "ti,wl1835"
+ * "ti,wl1837"
- reg : Chip select address of device
- spi-max-frequency : Maximum SPI clocking speed of device in Hz
-- ref-clock-frequency : Reference clock frequency
- interrupt-parent, interrupts :
Should contain parameters for 1 interrupt line.
Interrupt parameters: parent, line number, type.
-- vwlan-supply : Point the node of the regulator that powers/enable the wl1271 chip
+- vwlan-supply : Point the node of the regulator that powers/enable the
+ wl12xx/wl18xx chip
Optional properties:
+- ref-clock-frequency : Reference clock frequency (should be set for wl12xx)
- clock-xtal : boolean, clock is generated from XTAL
- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -21,16 +32,28 @@ Optional properties:
Examples:
+For wl12xx family:
&spi1 {
- wl1271@1 {
+ wlcore: wlcore@1 {
compatible = "ti,wl1271";
-
reg = <1>;
spi-max-frequency = <48000000>;
- clock-xtal;
- ref-clock-frequency = <38400000>;
interrupt-parent = <&gpio3>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
vwlan-supply = <&vwlan_fixed>;
+ clock-xtal;
+ ref-clock-frequency = <38400000>;
+ };
+};
+
+For wl18xx family:
+&spi0 {
+ wlcore: wlcore@0 {
+ compatible = "ti,wl1835";
+ reg = <0>;
+ spi-max-frequency = <48000000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <27 IRQ_TYPE_EDGE_RISING>;
+ vwlan-supply = <&vwlan_fixed>;
};
};
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index cea9443..73fbcf1 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -70,16 +70,30 @@
#define WSPI_MAX_CHUNK_SIZE 4092
/*
- * only support SPI for 12xx - this code should be reworked when 18xx
- * support is introduced
+ * wl18xx driver aggregation buffer size is (13 * PAGE_SIZE) compared to
+ * (4 * PAGE_SIZE) for wl12xx, so use the larger buffer needed for wl18xx
*/
-#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+#define SPI_AGGR_BUFFER_SIZE (13 * PAGE_SIZE)
/* Maximum number of SPI write chunks */
#define WSPI_MAX_NUM_OF_CHUNKS \
((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1)
+struct wilink_familiy_data {
+ char name[8];
+};
+
+const struct wilink_familiy_data *wilink_data;
+
+static const struct wilink_familiy_data wl18xx_data = {
+ .name = "wl18xx",
+};
+
+static const struct wilink_familiy_data wl12xx_data = {
+ .name = "wl12xx",
+};
+
struct wl12xx_spi_glue {
struct device *dev;
struct platform_device *core;
@@ -119,6 +133,7 @@ static void wl12xx_spi_init(struct device *child)
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
struct spi_transfer t;
struct spi_message m;
+ struct spi_device *spi = to_spi_device(glue->dev);
u8 *cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
if (!cmd) {
@@ -151,6 +166,7 @@ static void wl12xx_spi_init(struct device *child)
cmd[6] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
cmd[7] = crc7_be(0, cmd+2, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
+
/*
* The above is the logical order; it must actually be stored
* in the buffer byte-swapped.
@@ -163,6 +179,28 @@ static void wl12xx_spi_init(struct device *child)
spi_message_add_tail(&t, &m);
spi_sync(to_spi_device(glue->dev), &m);
+
+ /* Send extra clocks with inverted CS (high). this is required
+ * by the wilink family in order to successfully enter WSPI mode.
+ */
+ spi->mode ^= SPI_CS_HIGH;
+ memset(&m, 0, sizeof(m));
+ spi_message_init(&m);
+
+ cmd[0] = 0xff;
+ cmd[1] = 0xff;
+ cmd[2] = 0xff;
+ cmd[3] = 0xff;
+ __swab32s((u32 *)cmd);
+
+ t.tx_buf = cmd;
+ t.len = 4;
+ spi_message_add_tail(&t, &m);
+
+ spi_sync(to_spi_device(glue->dev), &m);
+
+ /* Restore chip select configration to normal */
+ spi->mode ^= SPI_CS_HIGH;
kfree(cmd);
}
@@ -270,22 +308,25 @@ static int __must_check wl12xx_spi_raw_read(struct device *child, int addr,
return 0;
}
-static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
- void *buf, size_t len, bool fixed)
+static int __wl12xx_spi_raw_write(struct device *child, int addr,
+ void *buf, size_t len, bool fixed)
{
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
- /* SPI write buffers - 2 for each chunk */
- struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS];
+ struct spi_transfer *t;
struct spi_message m;
u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */
u32 *cmd;
u32 chunk_len;
int i;
+ /* SPI write buffers - 2 for each chunk */
+ t = kzalloc(sizeof(*t) * 2 * WSPI_MAX_NUM_OF_CHUNKS, GFP_KERNEL);
+ if (!t)
+ return -ENOMEM;
+
WARN_ON(len > SPI_AGGR_BUFFER_SIZE);
spi_message_init(&m);
- memset(t, 0, sizeof(t));
cmd = &commands[0];
i = 0;
@@ -318,9 +359,26 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
spi_sync(to_spi_device(glue->dev), &m);
+ kfree(t);
return 0;
}
+static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
+ void *buf, size_t len, bool fixed)
+{
+ int ret;
+
+ /* The ELP wakeup write may fail the first time due to internal
+ * hardware latency. It is safer to send the wakeup command twice to
+ * avoid unexpected failures.
+ */
+ if (addr == HW_ACCESS_ELP_CTRL_REG)
+ ret = __wl12xx_spi_raw_write(child, addr, buf, len, fixed);
+ ret = __wl12xx_spi_raw_write(child, addr, buf, len, fixed);
+
+ return ret;
+}
+
/**
* wl12xx_spi_set_power - power on/off the wl12xx unit
* @child: wl12xx device handle.
@@ -349,17 +407,38 @@ static int wl12xx_spi_set_power(struct device *child, bool enable)
return ret;
}
+/**
+ * wl12xx_spi_set_block_size
+ *
+ * This function is not needed for spi mode, but need to be present.
+ * Without it defined the wlcore fallback to use the wrong packet
+ * allignment on tx.
+ */
+static void wl12xx_spi_set_block_size(struct device *child,
+ unsigned int blksz)
+{
+}
+
static struct wl1271_if_operations spi_ops = {
.read = wl12xx_spi_raw_read,
.write = wl12xx_spi_raw_write,
.reset = wl12xx_spi_reset,
.init = wl12xx_spi_init,
.power = wl12xx_spi_set_power,
- .set_block_size = NULL,
+ .set_block_size = wl12xx_spi_set_block_size,
};
static const struct of_device_id wlcore_spi_of_match_table[] = {
- { .compatible = "ti,wl1271" },
+ { .compatible = "ti,wl1271", .data = &wl12xx_data},
+ { .compatible = "ti,wl1273", .data = &wl12xx_data},
+ { .compatible = "ti,wl1281", .data = &wl12xx_data},
+ { .compatible = "ti,wl1283", .data = &wl12xx_data},
+ { .compatible = "ti,wl1801", .data = &wl18xx_data},
+ { .compatible = "ti,wl1805", .data = &wl18xx_data},
+ { .compatible = "ti,wl1807", .data = &wl18xx_data},
+ { .compatible = "ti,wl1831", .data = &wl18xx_data},
+ { .compatible = "ti,wl1835", .data = &wl18xx_data},
+ { .compatible = "ti,wl1837", .data = &wl18xx_data},
{ }
};
MODULE_DEVICE_TABLE(of, wlcore_spi_of_match_table);
@@ -376,17 +455,24 @@ static int wlcore_probe_of(struct spi_device *spi, struct wl12xx_spi_glue *glue,
{
struct device_node *dt_node = spi->dev.of_node;
int ret;
+ const struct of_device_id *of_id;
+
+ of_id = of_match_node(wlcore_spi_of_match_table, dt_node);
+ if (!of_id)
+ return -ENODEV;
+
+ wilink_data = of_id->data;
+ dev_info(&spi->dev, "selected chip familiy is %s\n",
+ wilink_data->name);
if (of_find_property(dt_node, "clock-xtal", NULL))
pdev_data->ref_clock_xtal = true;
- ret = of_property_read_u32(dt_node, "ref-clock-frequency",
- &pdev_data->ref_clock_freq);
- if (ret) {
- dev_err(glue->dev,
- "can't get reference clock frequency (%d)\n", ret);
- return ret;
- }
+ /* optional clock frequency params */
+ of_property_read_u32(dt_node, "ref-clock-frequency",
+ &pdev_data->ref_clock_freq);
+ of_property_read_u32(dt_node, "tcxo-clock-frequency",
+ &pdev_data->tcxo_clock_freq);
return 0;
}
@@ -437,7 +523,8 @@ static int wl1271_probe(struct spi_device *spi)
return ret;
}
- glue->core = platform_device_alloc("wl12xx", PLATFORM_DEVID_AUTO);
+ glue->core = platform_device_alloc(wilink_data->name,
+ PLATFORM_DEVID_AUTO);
if (!glue->core) {
dev_err(glue->dev, "can't allocate platform_device\n");
return -ENOMEM;
--
2.7.4
Add support for using with both wl12xx and wl18xx.
- all wilink family needs special init command for entering wspi mode.
extra clock cycles should be sent after the spi init command while the
cs pin is high.
- Use inverted chip select for sending a dummy 4 bytes command that
completes the init stage.
Signed-off-by: Eyal Reizer <[email protected]>
Acked-by: Rob Herring <[email protected]>
---
v1->v2:update device tree bindings configuration
v2->v3:revert from manual gpio manipulation. use inverted chip select
instead for sending the extra init cycle which, achieves the same hardware
purpose.
update device tree bindings docucmentation accordingly
v3->v4: Remove redundant data form binding documentation and fix chip
select number mismatch in wl1271 example
v4->v5: Rebase on top of head of wireless-drivers-next
.../bindings/net/wireless/ti,wlcore,spi.txt | 41 +++++--
drivers/net/wireless/ti/wlcore/spi.c | 123 ++++++++++++++++++---
2 files changed, 137 insertions(+), 27 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
index 9180724..8f9ced0 100644
--- a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
+++ b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
@@ -1,19 +1,30 @@
-* Texas Instruments wl1271 wireless lan controller
+* Texas Instruments wl12xx/wl18xx wireless lan controller
-The wl1271 chip can be connected via SPI or via SDIO. This
+The wl12xx/wl18xx chips can be connected via SPI or via SDIO. This
document describes the binding for the SPI connected chip.
Required properties:
-- compatible : Should be "ti,wl1271"
+- compatible : Should be one of the following:
+ * "ti,wl1271"
+ * "ti,wl1273"
+ * "ti,wl1281"
+ * "ti,wl1283"
+ * "ti,wl1801"
+ * "ti,wl1805"
+ * "ti,wl1807"
+ * "ti,wl1831"
+ * "ti,wl1835"
+ * "ti,wl1837"
- reg : Chip select address of device
- spi-max-frequency : Maximum SPI clocking speed of device in Hz
-- ref-clock-frequency : Reference clock frequency
- interrupt-parent, interrupts :
Should contain parameters for 1 interrupt line.
Interrupt parameters: parent, line number, type.
-- vwlan-supply : Point the node of the regulator that powers/enable the wl1271 chip
+- vwlan-supply : Point the node of the regulator that powers/enable the
+ wl12xx/wl18xx chip
Optional properties:
+- ref-clock-frequency : Reference clock frequency (should be set for
+wl12xx)
- clock-xtal : boolean, clock is generated from XTAL
- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -21,16 +32,28 @@ Optional properties:
Examples:
+For wl12xx family:
&spi1 {
- wl1271@1 {
+ wlcore: wlcore@1 {
compatible = "ti,wl1271";
-
reg = <1>;
spi-max-frequency = <48000000>;
- clock-xtal;
- ref-clock-frequency = <38400000>;
interrupt-parent = <&gpio3>;
interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
vwlan-supply = <&vwlan_fixed>;
+ clock-xtal;
+ ref-clock-frequency = <38400000>;
+ };
+};
+
+For wl18xx family:
+&spi0 {
+ wlcore: wlcore@0 {
+ compatible = "ti,wl1835";
+ reg = <0>;
+ spi-max-frequency = <48000000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <27 IRQ_TYPE_EDGE_RISING>;
+ vwlan-supply = <&vwlan_fixed>;
};
};
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index cea9443..73fbcf1 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -70,16 +70,30 @@
#define WSPI_MAX_CHUNK_SIZE 4092
/*
- * only support SPI for 12xx - this code should be reworked when 18xx
- * support is introduced
+ * wl18xx driver aggregation buffer size is (13 * PAGE_SIZE) compared
+ to
+ * (4 * PAGE_SIZE) for wl12xx, so use the larger buffer needed for
+ wl18xx
*/
-#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+#define SPI_AGGR_BUFFER_SIZE (13 * PAGE_SIZE)
/* Maximum number of SPI write chunks */ #define WSPI_MAX_NUM_OF_CHUNKS \
((SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE) + 1)
+struct wilink_familiy_data {
+ char name[8];
+};
+
+const struct wilink_familiy_data *wilink_data;
+
+static const struct wilink_familiy_data wl18xx_data = {
+ .name = "wl18xx",
+};
+
+static const struct wilink_familiy_data wl12xx_data = {
+ .name = "wl12xx",
+};
+
struct wl12xx_spi_glue {
struct device *dev;
struct platform_device *core;
@@ -119,6 +133,7 @@ static void wl12xx_spi_init(struct device *child)
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
struct spi_transfer t;
struct spi_message m;
+ struct spi_device *spi = to_spi_device(glue->dev);
u8 *cmd = kzalloc(WSPI_INIT_CMD_LEN, GFP_KERNEL);
if (!cmd) {
@@ -151,6 +166,7 @@ static void wl12xx_spi_init(struct device *child)
cmd[6] |= WSPI_INIT_CMD_EN_FIXEDBUSY;
cmd[7] = crc7_be(0, cmd+2, WSPI_INIT_CMD_CRC_LEN) | WSPI_INIT_CMD_END;
+
/*
* The above is the logical order; it must actually be stored
* in the buffer byte-swapped.
@@ -163,6 +179,28 @@ static void wl12xx_spi_init(struct device *child)
spi_message_add_tail(&t, &m);
spi_sync(to_spi_device(glue->dev), &m);
+
+ /* Send extra clocks with inverted CS (high). this is required
+ * by the wilink family in order to successfully enter WSPI mode.
+ */
+ spi->mode ^= SPI_CS_HIGH;
+ memset(&m, 0, sizeof(m));
+ spi_message_init(&m);
+
+ cmd[0] = 0xff;
+ cmd[1] = 0xff;
+ cmd[2] = 0xff;
+ cmd[3] = 0xff;
+ __swab32s((u32 *)cmd);
+
+ t.tx_buf = cmd;
+ t.len = 4;
+ spi_message_add_tail(&t, &m);
+
+ spi_sync(to_spi_device(glue->dev), &m);
+
+ /* Restore chip select configration to normal */
+ spi->mode ^= SPI_CS_HIGH;
kfree(cmd);
}
@@ -270,22 +308,25 @@ static int __must_check wl12xx_spi_raw_read(struct device *child, int addr,
return 0;
}
-static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
- void *buf, size_t len, bool fixed)
+static int __wl12xx_spi_raw_write(struct device *child, int addr,
+ void *buf, size_t len, bool fixed)
{
struct wl12xx_spi_glue *glue = dev_get_drvdata(child->parent);
- /* SPI write buffers - 2 for each chunk */
- struct spi_transfer t[2 * WSPI_MAX_NUM_OF_CHUNKS];
+ struct spi_transfer *t;
struct spi_message m;
u32 commands[WSPI_MAX_NUM_OF_CHUNKS]; /* 1 command per chunk */
u32 *cmd;
u32 chunk_len;
int i;
+ /* SPI write buffers - 2 for each chunk */
+ t = kzalloc(sizeof(*t) * 2 * WSPI_MAX_NUM_OF_CHUNKS, GFP_KERNEL);
+ if (!t)
+ return -ENOMEM;
+
WARN_ON(len > SPI_AGGR_BUFFER_SIZE);
spi_message_init(&m);
- memset(t, 0, sizeof(t));
cmd = &commands[0];
i = 0;
@@ -318,9 +359,26 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
spi_sync(to_spi_device(glue->dev), &m);
+ kfree(t);
return 0;
}
+static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
+ void *buf, size_t len, bool
+fixed) {
+ int ret;
+
+ /* The ELP wakeup write may fail the first time due to internal
+ * hardware latency. It is safer to send the wakeup command twice to
+ * avoid unexpected failures.
+ */
+ if (addr == HW_ACCESS_ELP_CTRL_REG)
+ ret = __wl12xx_spi_raw_write(child, addr, buf, len, fixed);
+ ret = __wl12xx_spi_raw_write(child, addr, buf, len, fixed);
+
+ return ret;
+}
+
/**
* wl12xx_spi_set_power - power on/off the wl12xx unit
* @child: wl12xx device handle.
@@ -349,17 +407,38 @@ static int wl12xx_spi_set_power(struct device *child, bool enable)
return ret;
}
+/**
+ * wl12xx_spi_set_block_size
+ *
+ * This function is not needed for spi mode, but need to be present.
+ * Without it defined the wlcore fallback to use the wrong packet
+ * allignment on tx.
+ */
+static void wl12xx_spi_set_block_size(struct device *child,
+ unsigned int blksz) { }
+
static struct wl1271_if_operations spi_ops = {
.read = wl12xx_spi_raw_read,
.write = wl12xx_spi_raw_write,
.reset = wl12xx_spi_reset,
.init = wl12xx_spi_init,
.power = wl12xx_spi_set_power,
- .set_block_size = NULL,
+ .set_block_size = wl12xx_spi_set_block_size,
};
static const struct of_device_id wlcore_spi_of_match_table[] = {
- { .compatible = "ti,wl1271" },
+ { .compatible = "ti,wl1271", .data = &wl12xx_data},
+ { .compatible = "ti,wl1273", .data = &wl12xx_data},
+ { .compatible = "ti,wl1281", .data = &wl12xx_data},
+ { .compatible = "ti,wl1283", .data = &wl12xx_data},
+ { .compatible = "ti,wl1801", .data = &wl18xx_data},
+ { .compatible = "ti,wl1805", .data = &wl18xx_data},
+ { .compatible = "ti,wl1807", .data = &wl18xx_data},
+ { .compatible = "ti,wl1831", .data = &wl18xx_data},
+ { .compatible = "ti,wl1835", .data = &wl18xx_data},
+ { .compatible = "ti,wl1837", .data = &wl18xx_data},
{ }
};
MODULE_DEVICE_TABLE(of, wlcore_spi_of_match_table); @@ -376,17 +455,24 @@ static int wlcore_probe_of(struct spi_device *spi, struct wl12xx_spi_glue *glue, {
struct device_node *dt_node = spi->dev.of_node;
int ret;
+ const struct of_device_id *of_id;
+
+ of_id = of_match_node(wlcore_spi_of_match_table, dt_node);
+ if (!of_id)
+ return -ENODEV;
+
+ wilink_data = of_id->data;
+ dev_info(&spi->dev, "selected chip familiy is %s\n",
+ wilink_data->name);
if (of_find_property(dt_node, "clock-xtal", NULL))
pdev_data->ref_clock_xtal = true;
- ret = of_property_read_u32(dt_node, "ref-clock-frequency",
- &pdev_data->ref_clock_freq);
- if (ret) {
- dev_err(glue->dev,
- "can't get reference clock frequency (%d)\n", ret);
- return ret;
- }
+ /* optional clock frequency params */
+ of_property_read_u32(dt_node, "ref-clock-frequency",
+ &pdev_data->ref_clock_freq);
+ of_property_read_u32(dt_node, "tcxo-clock-frequency",
+ &pdev_data->tcxo_clock_freq);
return 0;
}
@@ -437,7 +523,8 @@ static int wl1271_probe(struct spi_device *spi)
return ret;
}
- glue->core = platform_device_alloc("wl12xx", PLATFORM_DEVID_AUTO);
+ glue->core = platform_device_alloc(wilink_data->name,
+ PLATFORM_DEVID_AUTO);
if (!glue->core) {
dev_err(glue->dev, "can't allocate platform_device\n");
return -ENOMEM;
--
2.7.4
On Sun, Jul 10, 2016 at 08:32:40AM +0000, Reizer, Eyal wrote:
> Add support for using with both wl12xx and wl18xx.
>
> - all wilink family needs special init command for entering wspi mode.
> extra clock cycles should be sent after the spi init command while the
> cs pin is high.
> - Use inverted chip select for sending a dummy 4 bytes command that
> completes the init stage.
>
> Signed-off-by: Eyal Reizer <[email protected]>
> ---
> v1->v2:update device tree bindings configuration
> v2->v3:revert from manual gpio manipulation. use inverted chip select instead
> for sending the extra init cycle which, achieves the same hardware purpose.
> update device tree bindings docucmentation accordingly
> v3->v4: Remove redundant data form binding documentation and fix chip select
> number mismatch in wl1271 example
> v4->v5: Rebase on top of head of wireless-drivers-next
Please add acks when reposting.
Rob
"Reizer, Eyal" <[email protected]> writes:
> Add support for using with both wl12xx and wl18xx.
>
> - all wilink family needs special init command for entering wspi mode.
> extra clock cycles should be sent after the spi init command while the
> cs pin is high.
> - Use inverted chip select for sending a dummy 4 bytes command that
> completes the init stage.
>
> Signed-off-by: Eyal Reizer <[email protected]>
> Acked-by: Rob Herring <[email protected]>
> ---
> v1->v2:update device tree bindings configuration
> v2->v3:revert from manual gpio manipulation. use inverted chip select
> instead for sending the extra init cycle which, achieves the same hardware
> purpose.
> update device tree bindings docucmentation accordingly
> v3->v4: Remove redundant data form binding documentation and fix chip
> select number mismatch in wl1271 example
> v4->v5: Rebase on top of head of wireless-drivers-next
You now sent me two patches with v5 which is just confusing. To make the
life of maintainers easier ALWAYS increase the revision number, no
matter how small the change is.
But the "latter" v5 is corrupted somehow in patchwork:
https://patchwork.kernel.org/patch/9233597/
The "former" v5 again looks ok:
https://patchwork.kernel.org/patch/9222403/
I can't immeaditely see why that happened, but please resend.
--
Kalle Valo