2023-03-26 23:39:42

by Steev Klimaszewski

[permalink] [raw]
Subject: [PATCH v8 2/4] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855

Add regulators, GPIOs and changes required to power on/off wcn6855.
Add support for firmware download for wcn6855 which is in the
linux-firmware repository as hpbtfw21.tlv and hpnv21.bin.

Based on the assumption that this is similar to the wcn6750

Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1

Signed-off-by: Steev Klimaszewski <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Tested-by: Bjorn Andersson <[email protected]>
---
Changes since v7:
* None

Changes since v6:
* Update commit message.
* Add Johan's R-b and T-b.

Changes since v5:
* Revert Set qcadev->initspeed since 6855 doesn't use it, don't touch.
* Convert get_fw_build_info to a switch statement
* Add poweroff handling
* Fix up line alignments
* Drop from microsoft extensions check since I don't actually know if we need

Changes since v4:
* Remove unused firmware check because we don't have mbn firmware.
* Set qcadev->init_speed if it hasn't been set.

Changes since v3:
* drop unused regulators

Changes since v2:
* drop unnecessary commit info

Changes since v1:
* None

drivers/bluetooth/btqca.c | 14 ++++++++-
drivers/bluetooth/btqca.h | 10 +++++++
drivers/bluetooth/hci_qca.c | 57 ++++++++++++++++++++++++++++---------
3 files changed, 66 insertions(+), 15 deletions(-)

diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index c9064d34d830..fd0941fe8608 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -614,6 +614,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
config.type = ELF_TYPE_PATCH;
snprintf(config.fwname, sizeof(config.fwname),
"qca/msbtfw%02x.mbn", rom_ver);
+ } else if (soc_type == QCA_WCN6855) {
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/hpbtfw%02x.tlv", rom_ver);
} else {
snprintf(config.fwname, sizeof(config.fwname),
"qca/rampatch_%08x.bin", soc_ver);
@@ -648,6 +651,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
else if (soc_type == QCA_WCN6750)
snprintf(config.fwname, sizeof(config.fwname),
"qca/msnv%02x.bin", rom_ver);
+ else if (soc_type == QCA_WCN6855)
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/hpnv%02x.bin", rom_ver);
else
snprintf(config.fwname, sizeof(config.fwname),
"qca/nvm_%08x.bin", soc_ver);
@@ -685,11 +691,17 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
return err;
}

- if (soc_type == QCA_WCN3991 || soc_type == QCA_WCN6750) {
+ switch (soc_type) {
+ case QCA_WCN3991:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
/* get fw build info */
err = qca_read_fw_build_info(hdev);
if (err < 0)
return err;
+ break;
+ default:
+ break;
}

bt_dev_info(hdev, "QCA setup on UART is completed");
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index 61e9a50e66ae..b884095bcd9d 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -147,6 +147,7 @@ enum qca_btsoc_type {
QCA_WCN3991,
QCA_QCA6390,
QCA_WCN6750,
+ QCA_WCN6855,
};

#if IS_ENABLED(CONFIG_BT_QCA)
@@ -168,6 +169,10 @@ static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type)
{
return soc_type == QCA_WCN6750;
}
+static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type)
+{
+ return soc_type == QCA_WCN6855;
+}

#else

@@ -206,6 +211,11 @@ static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type)
return false;
}

+static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type)
+{
+ return false;
+}
+
static inline int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
{
return -EOPNOTSUPP;
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 3df8c3606e93..38ff962662ff 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1317,7 +1317,8 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)

/* Give the controller time to process the request */
if (qca_is_wcn399x(qca_soc_type(hu)) ||
- qca_is_wcn6750(qca_soc_type(hu)))
+ qca_is_wcn6750(qca_soc_type(hu)) ||
+ qca_is_wcn6855(qca_soc_type(hu)))
usleep_range(1000, 10000);
else
msleep(300);
@@ -1394,7 +1395,8 @@ static unsigned int qca_get_speed(struct hci_uart *hu,
static int qca_check_speeds(struct hci_uart *hu)
{
if (qca_is_wcn399x(qca_soc_type(hu)) ||
- qca_is_wcn6750(qca_soc_type(hu))) {
+ qca_is_wcn6750(qca_soc_type(hu)) ||
+ qca_is_wcn6855(qca_soc_type(hu))) {
if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
!qca_get_speed(hu, QCA_OPER_SPEED))
return -EINVAL;
@@ -1428,7 +1430,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
* changing the baudrate of chip and host.
*/
if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type))
+ qca_is_wcn6750(soc_type) ||
+ qca_is_wcn6855(soc_type))
hci_uart_set_flow_control(hu, true);

if (soc_type == QCA_WCN3990) {
@@ -1446,7 +1449,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)

error:
if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type))
+ qca_is_wcn6750(soc_type) ||
+ qca_is_wcn6855(soc_type))
hci_uart_set_flow_control(hu, false);

if (soc_type == QCA_WCN3990) {
@@ -1682,7 +1686,8 @@ static int qca_power_on(struct hci_dev *hdev)
return 0;

if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type)) {
+ qca_is_wcn6750(soc_type) ||
+ qca_is_wcn6855(soc_type)) {
ret = qca_regulator_init(hu);
} else {
qcadev = serdev_device_get_drvdata(hu->serdev);
@@ -1723,7 +1728,8 @@ static int qca_setup(struct hci_uart *hu)

bt_dev_info(hdev, "setting up %s",
qca_is_wcn399x(soc_type) ? "wcn399x" :
- (soc_type == QCA_WCN6750) ? "wcn6750" : "ROME/QCA6390");
+ (soc_type == QCA_WCN6750) ? "wcn6750" :
+ (soc_type == QCA_WCN6855) ? "wcn6855" : "ROME/QCA6390");

qca->memdump_state = QCA_MEMDUMP_IDLE;

@@ -1735,7 +1741,8 @@ static int qca_setup(struct hci_uart *hu)
clear_bit(QCA_SSR_TRIGGERED, &qca->flags);

if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type)) {
+ qca_is_wcn6750(soc_type) ||
+ qca_is_wcn6855(soc_type)) {
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
hci_set_aosp_capable(hdev);

@@ -1757,7 +1764,8 @@ static int qca_setup(struct hci_uart *hu)
}

if (!(qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type))) {
+ qca_is_wcn6750(soc_type) ||
+ qca_is_wcn6855(soc_type))) {
/* Get QCA version information */
ret = qca_read_soc_version(hdev, &ver, soc_type);
if (ret)
@@ -1883,6 +1891,20 @@ static const struct qca_device_data qca_soc_data_wcn6750 = {
.capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
};

+static const struct qca_device_data qca_soc_data_wcn6855 = {
+ .soc_type = QCA_WCN6855,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 5000 },
+ { "vddbtcxmx", 126000 },
+ { "vddrfacmn", 12500 },
+ { "vddrfa0p8", 102000 },
+ { "vddrfa1p7", 302000 },
+ { "vddrfa1p2", 257000 },
+ },
+ .num_vregs = 6,
+ .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
static void qca_power_shutdown(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
@@ -1912,7 +1934,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
host_set_baudrate(hu, 2400);
qca_send_power_pulse(hu, false);
qca_regulator_disable(qcadev);
- } else if (soc_type == QCA_WCN6750) {
+ } else if (soc_type == QCA_WCN6750 || soc_type == QCA_WCN6855) {
gpiod_set_value_cansleep(qcadev->bt_en, 0);
msleep(100);
qca_regulator_disable(qcadev);
@@ -2047,7 +2069,8 @@ static int qca_serdev_probe(struct serdev_device *serdev)

if (data &&
(qca_is_wcn399x(data->soc_type) ||
- qca_is_wcn6750(data->soc_type))) {
+ qca_is_wcn6750(data->soc_type) ||
+ qca_is_wcn6855(data->soc_type))) {
qcadev->btsoc_type = data->soc_type;
qcadev->bt_power = devm_kzalloc(&serdev->dev,
sizeof(struct qca_power),
@@ -2067,14 +2090,18 @@ static int qca_serdev_probe(struct serdev_device *serdev)

qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
GPIOD_OUT_LOW);
- if (IS_ERR_OR_NULL(qcadev->bt_en) && data->soc_type == QCA_WCN6750) {
+ if (IS_ERR_OR_NULL(qcadev->bt_en) &&
+ (data->soc_type == QCA_WCN6750 ||
+ data->soc_type == QCA_WCN6855)) {
dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n");
power_ctrl_enabled = false;
}

qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl",
GPIOD_IN);
- if (IS_ERR_OR_NULL(qcadev->sw_ctrl) && data->soc_type == QCA_WCN6750)
+ if (IS_ERR_OR_NULL(qcadev->sw_ctrl) &&
+ (data->soc_type == QCA_WCN6750 ||
+ data->soc_type == QCA_WCN6855))
dev_warn(&serdev->dev, "failed to acquire SW_CTRL gpio\n");

qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
@@ -2150,8 +2177,9 @@ static void qca_serdev_remove(struct serdev_device *serdev)
struct qca_power *power = qcadev->bt_power;

if ((qca_is_wcn399x(qcadev->btsoc_type) ||
- qca_is_wcn6750(qcadev->btsoc_type)) &&
- power->vregs_on)
+ qca_is_wcn6750(qcadev->btsoc_type) ||
+ qca_is_wcn6855(qcadev->btsoc_type)) &&
+ power->vregs_on)
qca_power_shutdown(&qcadev->serdev_hu);
else if (qcadev->susclk)
clk_disable_unprepare(qcadev->susclk);
@@ -2335,6 +2363,7 @@ static const struct of_device_id qca_bluetooth_of_match[] = {
{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},
{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
{ .compatible = "qcom,wcn6750-bt", .data = &qca_soc_data_wcn6750},
+ { .compatible = "qcom,wcn6855-bt", .data = &qca_soc_data_wcn6855},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
--
2.39.2


2023-03-30 10:18:41

by Johan Hovold

[permalink] [raw]
Subject: Re: [PATCH v8 2/4] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855

On Sun, Mar 26, 2023 at 06:38:10PM -0500, Steev Klimaszewski wrote:
> Add regulators, GPIOs and changes required to power on/off wcn6855.
> Add support for firmware download for wcn6855 which is in the
> linux-firmware repository as hpbtfw21.tlv and hpnv21.bin.
>
> Based on the assumption that this is similar to the wcn6750
>
> Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1
>
> Signed-off-by: Steev Klimaszewski <[email protected]>
> Reviewed-by: Bjorn Andersson <[email protected]>
> Tested-by: Bjorn Andersson <[email protected]>
> ---
> Changes since v7:
> * None

Only noticed now when Luiz applied the patches, but why did you drop my
reviewed-by and tested-by tags from this patch when submitting v8?

For the record:

Reviewed-by: Johan Hovold <[email protected]>
Tested-by: Johan Hovold <[email protected]>

> Changes since v6:
> * Update commit message.
> * Add Johan's R-b and T-b.
>
> Changes since v5:
> * Revert Set qcadev->initspeed since 6855 doesn't use it, don't touch.
> * Convert get_fw_build_info to a switch statement
> * Add poweroff handling
> * Fix up line alignments
> * Drop from microsoft extensions check since I don't actually know if we need
>
> Changes since v4:
> * Remove unused firmware check because we don't have mbn firmware.
> * Set qcadev->init_speed if it hasn't been set.
>
> Changes since v3:
> * drop unused regulators
>
> Changes since v2:
> * drop unnecessary commit info
>
> Changes since v1:
> * None

Johan

2023-03-30 16:37:16

by Steev Klimaszewski

[permalink] [raw]
Subject: Re: [PATCH v8 2/4] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855

Hi Johan,

On Thu, Mar 30, 2023 at 5:10 AM Johan Hovold <[email protected]> wrote:
>
> On Sun, Mar 26, 2023 at 06:38:10PM -0500, Steev Klimaszewski wrote:
> > Add regulators, GPIOs and changes required to power on/off wcn6855.
> > Add support for firmware download for wcn6855 which is in the
> > linux-firmware repository as hpbtfw21.tlv and hpnv21.bin.
> >
> > Based on the assumption that this is similar to the wcn6750
> >
> > Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1
> >
> > Signed-off-by: Steev Klimaszewski <[email protected]>
> > Reviewed-by: Bjorn Andersson <[email protected]>
> > Tested-by: Bjorn Andersson <[email protected]>
> > ---
> > Changes since v7:
> > * None
>
> Only noticed now when Luiz applied the patches, but why did you drop my
> reviewed-by and tested-by tags from this patch when submitting v8?
>
> For the record:
>
> Reviewed-by: Johan Hovold <[email protected]>
> Tested-by: Johan Hovold <[email protected]>
>
Oops, that wasn't intentional! I only meant to drop it on the dts bits
as that part I wanted to make sure I got right based on your comments,
my apologies!
--steev

2023-04-12 20:10:37

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: Re: [PATCH v8 2/4] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855

Hi Steev,

On Thu, Mar 30, 2023 at 9:35 AM Steev Klimaszewski <[email protected]> wrote:
>
> Hi Johan,
>
> On Thu, Mar 30, 2023 at 5:10 AM Johan Hovold <[email protected]> wrote:
> >
> > On Sun, Mar 26, 2023 at 06:38:10PM -0500, Steev Klimaszewski wrote:
> > > Add regulators, GPIOs and changes required to power on/off wcn6855.
> > > Add support for firmware download for wcn6855 which is in the
> > > linux-firmware repository as hpbtfw21.tlv and hpnv21.bin.
> > >
> > > Based on the assumption that this is similar to the wcn6750
> > >
> > > Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1
> > >
> > > Signed-off-by: Steev Klimaszewski <[email protected]>
> > > Reviewed-by: Bjorn Andersson <[email protected]>
> > > Tested-by: Bjorn Andersson <[email protected]>
> > > ---
> > > Changes since v7:
> > > * None
> >
> > Only noticed now when Luiz applied the patches, but why did you drop my
> > reviewed-by and tested-by tags from this patch when submitting v8?
> >
> > For the record:
> >
> > Reviewed-by: Johan Hovold <[email protected]>
> > Tested-by: Johan Hovold <[email protected]>
> >
> Oops, that wasn't intentional! I only meant to drop it on the dts bits
> as that part I wanted to make sure I got right based on your comments,
> my apologies!
> --steev

This one seems to be causing a new warning:

drivers/bluetooth/hci_qca.c:18
94:37: warning: unused variable 'qca_soc_data_wcn6855' [-Wunused-const-variable]

--
Luiz Augusto von Dentz

2023-04-12 23:39:46

by Steev Klimaszewski

[permalink] [raw]
Subject: Re: [PATCH v8 2/4] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855

Hi Luiz,

On Wed, Apr 12, 2023 at 3:00 PM Luiz Augusto von Dentz
<[email protected]> wrote:
>
> Hi Steev,
>
> On Thu, Mar 30, 2023 at 9:35 AM Steev Klimaszewski <[email protected]> wrote:
> >
> > Hi Johan,
> >
> > On Thu, Mar 30, 2023 at 5:10 AM Johan Hovold <[email protected]> wrote:
> > >
> > > On Sun, Mar 26, 2023 at 06:38:10PM -0500, Steev Klimaszewski wrote:
> > > > Add regulators, GPIOs and changes required to power on/off wcn6855.
> > > > Add support for firmware download for wcn6855 which is in the
> > > > linux-firmware repository as hpbtfw21.tlv and hpnv21.bin.
> > > >
> > > > Based on the assumption that this is similar to the wcn6750
> > > >
> > > > Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1
> > > >
> > > > Signed-off-by: Steev Klimaszewski <[email protected]>
> > > > Reviewed-by: Bjorn Andersson <[email protected]>
> > > > Tested-by: Bjorn Andersson <[email protected]>
> > > > ---
> > > > Changes since v7:
> > > > * None
> > >
> > > Only noticed now when Luiz applied the patches, but why did you drop my
> > > reviewed-by and tested-by tags from this patch when submitting v8?
> > >
> > > For the record:
> > >
> > > Reviewed-by: Johan Hovold <[email protected]>
> > > Tested-by: Johan Hovold <[email protected]>
> > >
> > Oops, that wasn't intentional! I only meant to drop it on the dts bits
> > as that part I wanted to make sure I got right based on your comments,
> > my apologies!
> > --steev
>
> This one seems to be causing a new warning:
>
> drivers/bluetooth/hci_qca.c:18
> 94:37: warning: unused variable 'qca_soc_data_wcn6855' [-Wunused-const-variable]
>
I had seen this as well and I just noticed that the others were marked
as __maybe_unused and I forgot to. Will send a fix up for that!


> --
> Luiz Augusto von Dentz
-- steev