[PATCH v1] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[PATCH v1] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---
 drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 9392cc7f9908..f6555bd1adbc 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		if (hu->serdev) {
+			qcadev = serdev_device_get_drvdata(hu->serdev);
+			gpiod_set_value_cansleep(qcadev->bt_en, 1);
+			/* Controller needs time to bootup. */
+			msleep(150);
+		}
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v1] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Matthias Kaehlcke]

Hi Rocky,

On Tue, Jan 07, 2020 at 01:26:01PM +0800, Rocky Liao wrote:
> This patch adds a unified API qca_power_on() to support both wcn399x and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> ---
>  drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 9392cc7f9908..f6555bd1adbc 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
>  
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;

another option would be to return directly from the if/else branches,
but either way is fine.

> +
> +	if (qca_is_wcn399x(soc_type)) {
> +		ret = qca_wcn3990_init(hu);
> +	} else {
> +		if (hu->serdev) {
> +			qcadev = serdev_device_get_drvdata(hu->serdev);
> +			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +			/* Controller needs time to bootup. */
> +			msleep(150);
> +		}
> +	}
> +
> +	return ret;
> +}
> +

I expected qca_power_on() would be called from qca_open(), but as is
this would only work for ROME, and not WCN399x, which only enables
the regulators in qca_open(), qca_wcn3990_init() is called from
qca_setup(). Is there a particular reason for this assymmetry between
the ROME and WCN399x initialization (i.e. one is fully powered up after
open(), the other not)?

Re: [PATCH v1] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

Hi Matt,

在 2020-01-08 01:31，Matthias Kaehlcke 写道：
> Hi Rocky,
> 
> On Tue, Jan 07, 2020 at 01:26:01PM +0800, Rocky Liao wrote:
>> This patch adds a unified API qca_power_on() to support both wcn399x 
>> and
>> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
>> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
>> btsoc.
>> 
>> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
>> ---
>>  drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
>>  1 file changed, 21 insertions(+)
>> 
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 9392cc7f9908..f6555bd1adbc 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart 
>> *hu)
>>  	return 0;
>>  }
>> 
>> +static int qca_power_on(struct hci_dev *hdev)
>> +{
>> +	struct hci_uart *hu = hci_get_drvdata(hdev);
>> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
>> +	struct qca_serdev *qcadev;
>> +	int ret = 0;
> 
> another option would be to return directly from the if/else branches,
> but either way is fine.
> 
>> +
>> +	if (qca_is_wcn399x(soc_type)) {
>> +		ret = qca_wcn3990_init(hu);
>> +	} else {
>> +		if (hu->serdev) {
>> +			qcadev = serdev_device_get_drvdata(hu->serdev);
>> +			gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> +			/* Controller needs time to bootup. */
>> +			msleep(150);
>> +		}
>> +	}
>> +
>> +	return ret;
>> +}
>> +
> 
> I expected qca_power_on() would be called from qca_open(), but as is
> this would only work for ROME, and not WCN399x, which only enables
> the regulators in qca_open(), qca_wcn3990_init() is called from
> qca_setup(). Is there a particular reason for this assymmetry between
> the ROME and WCN399x initialization (i.e. one is fully powered up after
> open(), the other not)?

I prefer to move the power on call from qca_open() to qca_setup() for 
Rome,
I don't see any reason for this difference with wcn399x.I will send 
patch for
this if you have no concern.

[PATCH v2 1/3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---

Changes in v2: None

 drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 9392cc7f9908..f6555bd1adbc 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		if (hu->serdev) {
+			qcadev = serdev_device_get_drvdata(hu->serdev);
+			gpiod_set_value_cansleep(qcadev->bt_en, 1);
+			/* Controller needs time to bootup. */
+			msleep(150);
+		}
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH v2 2/3] Bluetooth: hci_qca: Move the power on from open() to setup() for QCA Rome

[Rocky Liao]

This patch moves the btsoc power on from hdev->open() to hdev->setup() for
QCA Rome. And it calls the unified qca_power_on() API to perform the Rome
power on operation.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---

Changes in v2: Added this patch

 drivers/bluetooth/hci_qca.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index f6555bd1adbc..8fc8c9bce9ee 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -582,13 +582,8 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-
 		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
-			gpiod_set_value_cansleep(qcadev->bt_en, 1);
-			/* Controller needs time to bootup. */
-			msleep(150);
-		} else {
+		if (qca_is_wcn399x(qcadev->btsoc_type)) {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
 			ret = qca_regulator_enable(qcadev);
@@ -1593,6 +1588,9 @@ static int qca_setup(struct hci_uart *hu)
 			return ret;
 	} else {
 		bt_dev_info(hdev, "ROME setup");
+		ret = qca_power_on(hdev);
+		if (ret)
+			return ret;
 		qca_set_speed(hu, QCA_INIT_SPEED);
 	}
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

[PATCH v2 3/3] Bluetooth: hci_qca: Use unified API qca_power_on() to power up wcn399x

[Rocky Liao]

This patch replaces wcn399x power on with unified API qca_power_on(),
which supports both wcn399x and Rome.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---

Changes in v2: Added this patch

 drivers/bluetooth/hci_qca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 8fc8c9bce9ee..7cc82d048558 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1579,7 +1579,7 @@ static int qca_setup(struct hci_uart *hu)
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
 		hu->hdev->shutdown = qca_power_off;
-		ret = qca_wcn3990_init(hu);
+		ret = qca_power_on(hdev);
 		if (ret)
 			return ret;
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v2 1/3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Matthias Kaehlcke]

Hi Rocky,

On Wed, Jan 08, 2020 at 05:08:02PM +0800, Rocky Liao wrote:
> This patch adds a unified API qca_power_on() to support both wcn399x and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> ---
> 
> Changes in v2: None
> 
>  drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 9392cc7f9908..f6555bd1adbc 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
>  
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;
> +
> +	if (qca_is_wcn399x(soc_type)) {

Why not include the qca_regulator_enable() call from qca_open() here?
It is clearly part of power on.

> +		ret = qca_wcn3990_init(hu);
> +	} else {
> +		if (hu->serdev) {

nit: you could save a level of indentation (and IMO improve
readability) by doing:

     	       if (!hu->serdev)
	            	return 0;

> +			qcadev = serdev_device_get_drvdata(hu->serdev);
> +			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +			/* Controller needs time to bootup. */
> +			msleep(150);
> +		}
> +	}
> +
> +	return ret;
> +}
> +

I think common practice would be to combine the 3 patches of this series
into one. The new function doesn't really add any new functionality, but
is a refactoring. This is more evident if you see in a single diff that
the pieces in qca_power_on() are removed elsewhere.

Re: [PATCH v2 1/3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

Hi Matt,

在 2020-01-09 02:34，Matthias Kaehlcke 写道：
> Hi Rocky,
> 
> On Wed, Jan 08, 2020 at 05:08:02PM +0800, Rocky Liao wrote:
>> This patch adds a unified API qca_power_on() to support both wcn399x 
>> and
>> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
>> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
>> btsoc.
>> 
>> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
>> ---
>> 
>> Changes in v2: None
>> 
>>  drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
>>  1 file changed, 21 insertions(+)
>> 
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 9392cc7f9908..f6555bd1adbc 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart 
>> *hu)
>>  	return 0;
>>  }
>> 
>> +static int qca_power_on(struct hci_dev *hdev)
>> +{
>> +	struct hci_uart *hu = hci_get_drvdata(hdev);
>> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
>> +	struct qca_serdev *qcadev;
>> +	int ret = 0;
>> +
>> +	if (qca_is_wcn399x(soc_type)) {
> 
> Why not include the qca_regulator_enable() call from qca_open() here?
> It is clearly part of power on.
> 
OK

>> +		ret = qca_wcn3990_init(hu);
>> +	} else {
>> +		if (hu->serdev) {
> 
> nit: you could save a level of indentation (and IMO improve
> readability) by doing:
> 
>      	       if (!hu->serdev)
> 	            	return 0;
> 
OK

>> +			qcadev = serdev_device_get_drvdata(hu->serdev);
>> +			gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> +			/* Controller needs time to bootup. */
>> +			msleep(150);
>> +		}
>> +	}
>> +
>> +	return ret;
>> +}
>> +
> 
> I think common practice would be to combine the 3 patches of this 
> series
> into one. The new function doesn't really add any new functionality, 
> but
> is a refactoring. This is more evident if you see in a single diff that
> the pieces in qca_power_on() are removed elsewhere.
OK

Re: [PATCH v2 1/3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

在 2020-01-09 11:22，Rocky Liao 写道：
> Hi Matt,
> 
> 在 2020-01-09 02:34，Matthias Kaehlcke 写道：
>> Hi Rocky,
>> 
>> On Wed, Jan 08, 2020 at 05:08:02PM +0800, Rocky Liao wrote:
>>> This patch adds a unified API qca_power_on() to support both wcn399x 
>>> and
>>> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init 
>>> the
>>> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
>>> btsoc.
>>> 
>>> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
>>> ---
>>> 
>>> Changes in v2: None
>>> 
>>>  drivers/bluetooth/hci_qca.c | 21 +++++++++++++++++++++
>>>  1 file changed, 21 insertions(+)
>>> 
>>> diff --git a/drivers/bluetooth/hci_qca.c 
>>> b/drivers/bluetooth/hci_qca.c
>>> index 9392cc7f9908..f6555bd1adbc 100644
>>> --- a/drivers/bluetooth/hci_qca.c
>>> +++ b/drivers/bluetooth/hci_qca.c
>>> @@ -1532,6 +1532,27 @@ static int qca_wcn3990_init(struct hci_uart 
>>> *hu)
>>>  	return 0;
>>>  }
>>> 
>>> +static int qca_power_on(struct hci_dev *hdev)
>>> +{
>>> +	struct hci_uart *hu = hci_get_drvdata(hdev);
>>> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
>>> +	struct qca_serdev *qcadev;
>>> +	int ret = 0;
>>> +
>>> +	if (qca_is_wcn399x(soc_type)) {
>> 
>> Why not include the qca_regulator_enable() call from qca_open() here?
>> It is clearly part of power on.
>> 
> OK
> 
qca_wcn3990_init() already have the qca_regulator_enable() call, so we 
just
need to remove it from qca_open().

>>> +		ret = qca_wcn3990_init(hu);
>>> +	} else {
>>> +		if (hu->serdev) {
>> 
>> nit: you could save a level of indentation (and IMO improve
>> readability) by doing:
>> 
>>      	       if (!hu->serdev)
>> 	            	return 0;
>> 
> OK
> 
>>> +			qcadev = serdev_device_get_drvdata(hu->serdev);
>>> +			gpiod_set_value_cansleep(qcadev->bt_en, 1);
>>> +			/* Controller needs time to bootup. */
>>> +			msleep(150);
>>> +		}
>>> +	}
>>> +
>>> +	return ret;
>>> +}
>>> +
>> 
>> I think common practice would be to combine the 3 patches of this 
>> series
>> into one. The new function doesn't really add any new functionality, 
>> but
>> is a refactoring. This is more evident if you see in a single diff 
>> that
>> the pieces in qca_power_on() are removed elsewhere.
> OK

[PATCH v3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
---

Changes in v2: None
Changes in v3:
  -combined the changes of patch 2 and 3 into this patch
  -updated the commit message

 drivers/bluetooth/hci_qca.c | 46 ++++++++++++++++++++++++-------------
 1 file changed, 30 insertions(+), 16 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 82e4cd4b6663..427e381a08b4 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
 	struct qca_data *qca;
-	int ret;
 
 	BT_DBG("hu %p qca_open", hu);
 
@@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-
 		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
-			gpiod_set_value_cansleep(qcadev->bt_en, 1);
-			/* Controller needs time to bootup. */
-			msleep(150);
-		} else {
+		if (qca_is_wcn399x(qcadev->btsoc_type)) {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
-			ret = qca_regulator_enable(qcadev);
-			if (ret) {
-				destroy_workqueue(qca->workqueue);
-				kfree_skb(qca->rx_skb);
-				hu->priv = NULL;
-				kfree(qca);
-				return ret;
-			}
 		}
 	}
 
@@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	/* Non-serdev device usually is powered by external power
+	 * and don't need additional action in driver for power on
+	 */
+	if (!hu->serdev)
+		return 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+		gpiod_set_value_cansleep(qcadev->bt_en, 1);
+		/* Controller needs time to bootup. */
+		msleep(150);
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
@@ -1562,7 +1573,7 @@ static int qca_setup(struct hci_uart *hu)
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
 		hu->hdev->shutdown = qca_power_off;
-		ret = qca_wcn3990_init(hu);
+		ret = qca_power_on(hdev);
 		if (ret)
 			return ret;
 
@@ -1571,6 +1582,9 @@ static int qca_setup(struct hci_uart *hu)
 			return ret;
 	} else {
 		bt_dev_info(hdev, "ROME setup");
+		ret = qca_power_on(hdev);
+		if (ret)
+			return ret;
 		qca_set_speed(hu, QCA_INIT_SPEED);
 	}
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Matthias Kaehlcke]

Hi Rocky,

On Thu, Jan 09, 2020 at 01:14:27PM +0800, Rocky Liao wrote:
> This patch adds a unified API qca_power_on() to support both wcn399x and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
> It also moves all the power up operation from hdev->open() to
> hdev->setup().
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> ---
> 
> Changes in v2: None
> Changes in v3:
>   -combined the changes of patch 2 and 3 into this patch

it would be better to actually describe what was done, "patch 2 and 3"
doesn't provide much useful information.

>   -updated the commit message
> 
>  drivers/bluetooth/hci_qca.c | 46 ++++++++++++++++++++++++-------------
>  1 file changed, 30 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 82e4cd4b6663..427e381a08b4 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>  {
>  	struct qca_serdev *qcadev;
>  	struct qca_data *qca;
> -	int ret;
>  
>  	BT_DBG("hu %p qca_open", hu);
>  
> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>  	hu->priv = qca;
>  
>  	if (hu->serdev) {
> -
>  		qcadev = serdev_device_get_drvdata(hu->serdev);
> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> -			/* Controller needs time to bootup. */
> -			msleep(150);
> -		} else {
> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>  			hu->init_speed = qcadev->init_speed;
>  			hu->oper_speed = qcadev->oper_speed;
> -			ret = qca_regulator_enable(qcadev);
> -			if (ret) {
> -				destroy_workqueue(qca->workqueue);
> -				kfree_skb(qca->rx_skb);
> -				hu->priv = NULL;
> -				kfree(qca);
> -				return ret;
> -			}
>  		}
>  	}
>  
> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
>  
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;
> +
> +	/* Non-serdev device usually is powered by external power
> +	 * and don't need additional action in driver for power on
> +	 */
> +	if (!hu->serdev)
> +		return 0;
> +
> +	if (qca_is_wcn399x(soc_type)) {
> +		ret = qca_wcn3990_init(hu);

Since there is no real need to add the qca_regulator_enable() call from
qca_open() here qca_power_on() is now essentially a fancy wrapper for
qca_wcn3990_init(), but I guess that's ok.

> +	} else {
> +		qcadev = serdev_device_get_drvdata(hu->serdev);
> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +		/* Controller needs time to bootup. */
> +		msleep(150);
> +	}
> +
> +	return ret;
> +}
> +
>  static int qca_setup(struct hci_uart *hu)
>  {
>  	struct hci_dev *hdev = hu->hdev;
> @@ -1562,7 +1573,7 @@ static int qca_setup(struct hci_uart *hu)
>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>  		hu->hdev->shutdown = qca_power_off;
> -		ret = qca_wcn3990_init(hu);
> +		ret = qca_power_on(hdev);
>  		if (ret)
>  			return ret;
>  
> @@ -1571,6 +1582,9 @@ static int qca_setup(struct hci_uart *hu)
>  			return ret;
>  	} else {
>  		bt_dev_info(hdev, "ROME setup");
> +		ret = qca_power_on(hdev);
> +		if (ret)
> +			return ret;
>  		qca_set_speed(hu, QCA_INIT_SPEED);
>  	}

It would be nice if we could get away with a single qca_power_on() call
for WCN399x and ROME. How about this before 'if (qca_is_wcn399x(soc_type))':

	bt_dev_info(hdev, "setting up %s",
		qca_is_wcn399x(soc_type)? "wcn399x" : "ROME");

	ret = qca_power_on(hdev);
	if (ret)
		return ret;


In any case:

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

Re: [PATCH v3] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

Hi Matt,

在 2020-01-10 03:05，Matthias Kaehlcke 写道：
> Hi Rocky,
> 
> On Thu, Jan 09, 2020 at 01:14:27PM +0800, Rocky Liao wrote:
>> This patch adds a unified API qca_power_on() to support both wcn399x 
>> and
>> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
>> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
>> btsoc.
>> It also moves all the power up operation from hdev->open() to
>> hdev->setup().
>> 
>> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
>> ---
>> 
>> Changes in v2: None
>> Changes in v3:
>>   -combined the changes of patch 2 and 3 into this patch
> 
> it would be better to actually describe what was done, "patch 2 and 3"
> doesn't provide much useful information.
> 
OK, will update that

>>   -updated the commit message
>> 
>>  drivers/bluetooth/hci_qca.c | 46 
>> ++++++++++++++++++++++++-------------
>>  1 file changed, 30 insertions(+), 16 deletions(-)
>> 
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 82e4cd4b6663..427e381a08b4 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>>  {
>>  	struct qca_serdev *qcadev;
>>  	struct qca_data *qca;
>> -	int ret;
>> 
>>  	BT_DBG("hu %p qca_open", hu);
>> 
>> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>>  	hu->priv = qca;
>> 
>>  	if (hu->serdev) {
>> -
>>  		qcadev = serdev_device_get_drvdata(hu->serdev);
>> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
>> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> -			/* Controller needs time to bootup. */
>> -			msleep(150);
>> -		} else {
>> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>>  			hu->init_speed = qcadev->init_speed;
>>  			hu->oper_speed = qcadev->oper_speed;
>> -			ret = qca_regulator_enable(qcadev);
>> -			if (ret) {
>> -				destroy_workqueue(qca->workqueue);
>> -				kfree_skb(qca->rx_skb);
>> -				hu->priv = NULL;
>> -				kfree(qca);
>> -				return ret;
>> -			}
>>  		}
>>  	}
>> 
>> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart 
>> *hu)
>>  	return 0;
>>  }
>> 
>> +static int qca_power_on(struct hci_dev *hdev)
>> +{
>> +	struct hci_uart *hu = hci_get_drvdata(hdev);
>> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
>> +	struct qca_serdev *qcadev;
>> +	int ret = 0;
>> +
>> +	/* Non-serdev device usually is powered by external power
>> +	 * and don't need additional action in driver for power on
>> +	 */
>> +	if (!hu->serdev)
>> +		return 0;
>> +
>> +	if (qca_is_wcn399x(soc_type)) {
>> +		ret = qca_wcn3990_init(hu);
> 
> Since there is no real need to add the qca_regulator_enable() call from
> qca_open() here qca_power_on() is now essentially a fancy wrapper for
> qca_wcn3990_init(), but I guess that's ok.
> 
>> +	} else {
>> +		qcadev = serdev_device_get_drvdata(hu->serdev);
>> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> +		/* Controller needs time to bootup. */
>> +		msleep(150);
>> +	}
>> +
>> +	return ret;
>> +}
>> +
>>  static int qca_setup(struct hci_uart *hu)
>>  {
>>  	struct hci_dev *hdev = hu->hdev;
>> @@ -1562,7 +1573,7 @@ static int qca_setup(struct hci_uart *hu)
>>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>>  		hu->hdev->shutdown = qca_power_off;
>> -		ret = qca_wcn3990_init(hu);
>> +		ret = qca_power_on(hdev);
>>  		if (ret)
>>  			return ret;
>> 
>> @@ -1571,6 +1582,9 @@ static int qca_setup(struct hci_uart *hu)
>>  			return ret;
>>  	} else {
>>  		bt_dev_info(hdev, "ROME setup");
>> +		ret = qca_power_on(hdev);
>> +		if (ret)
>> +			return ret;
>>  		qca_set_speed(hu, QCA_INIT_SPEED);
>>  	}
> 
> It would be nice if we could get away with a single qca_power_on() call
> for WCN399x and ROME. How about this before 'if 
> (qca_is_wcn399x(soc_type))':
> 
> 	bt_dev_info(hdev, "setting up %s",
> 		qca_is_wcn399x(soc_type)? "wcn399x" : "ROME");
> 
> 	ret = qca_power_on(hdev);
> 	if (ret)
> 		return ret;
> 
> 
> In any case:
> 
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

Makes sense will do that

[PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
---

Changes in v2: None
Changes in v3:
  -moved all the power up operation from open() to setup()
  -updated the commit message
Changes in v4:
  -made a single call to qca_power_on() in setup()


 drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 82e4cd4b6663..6a67e5489b16 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
 	struct qca_data *qca;
-	int ret;
 
 	BT_DBG("hu %p qca_open", hu);
 
@@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-
 		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
-			gpiod_set_value_cansleep(qcadev->bt_en, 1);
-			/* Controller needs time to bootup. */
-			msleep(150);
-		} else {
+		if (qca_is_wcn399x(qcadev->btsoc_type)) {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
-			ret = qca_regulator_enable(qcadev);
-			if (ret) {
-				destroy_workqueue(qca->workqueue);
-				kfree_skb(qca->rx_skb);
-				hu->priv = NULL;
-				kfree(qca);
-				return ret;
-			}
 		}
 	}
 
@@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	/* Non-serdev device usually is powered by external power
+	 * and don't need additional action in driver for power on
+	 */
+	if (!hu->serdev)
+		return 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+		gpiod_set_value_cansleep(qcadev->bt_en, 1);
+		/* Controller needs time to bootup. */
+		msleep(150);
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
@@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
+	ret = qca_power_on(hdev);
+	if (ret)
+		return ret;
+
 	if (qca_is_wcn399x(soc_type)) {
 		bt_dev_info(hdev, "setting up wcn3990");
 
@@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
 		hu->hdev->shutdown = qca_power_off;
-		ret = qca_wcn3990_init(hu);
-		if (ret)
-			return ret;
 
 		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
 		if (ret)
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Matthias Kaehlcke]

Hi Rocky,

On Fri, Jan 10, 2020 at 11:32:14AM +0800, Rocky Liao wrote:
> This patch adds a unified API qca_power_on() to support both wcn399x and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
> It also moves all the power up operation from hdev->open() to
> hdev->setup().
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
> ---
> 
> Changes in v2: None
> Changes in v3:
>   -moved all the power up operation from open() to setup()
>   -updated the commit message
> Changes in v4:
>   -made a single call to qca_power_on() in setup()
> 
> 
>  drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
>  1 file changed, 30 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 82e4cd4b6663..6a67e5489b16 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>  {
>  	struct qca_serdev *qcadev;
>  	struct qca_data *qca;
> -	int ret;
>  
>  	BT_DBG("hu %p qca_open", hu);
>  
> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>  	hu->priv = qca;
>  
>  	if (hu->serdev) {
> -
>  		qcadev = serdev_device_get_drvdata(hu->serdev);
> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> -			/* Controller needs time to bootup. */
> -			msleep(150);
> -		} else {
> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>  			hu->init_speed = qcadev->init_speed;
>  			hu->oper_speed = qcadev->oper_speed;
> -			ret = qca_regulator_enable(qcadev);
> -			if (ret) {
> -				destroy_workqueue(qca->workqueue);
> -				kfree_skb(qca->rx_skb);
> -				hu->priv = NULL;
> -				kfree(qca);
> -				return ret;
> -			}
>  		}
>  	}
>  
> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
>  
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;
> +
> +	/* Non-serdev device usually is powered by external power
> +	 * and don't need additional action in driver for power on
> +	 */
> +	if (!hu->serdev)
> +		return 0;
> +
> +	if (qca_is_wcn399x(soc_type)) {
> +		ret = qca_wcn3990_init(hu);
> +	} else {
> +		qcadev = serdev_device_get_drvdata(hu->serdev);
> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +		/* Controller needs time to bootup. */
> +		msleep(150);
> +	}
> +
> +	return ret;
> +}
> +
>  static int qca_setup(struct hci_uart *hu)
>  {
>  	struct hci_dev *hdev = hu->hdev;
> @@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
>  	 */
>  	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
>  
> +	ret = qca_power_on(hdev);
> +	if (ret)
> +		return ret;
> +

Now if qca_power_on() fails there is no log entry indicating that Bluetooth
setup was running. That's why I suggested to put this log entry before
the call, and remove the corresponding entries from the if/else branches:

	bt_dev_info(hdev, "setting up %s",
		qca_is_wcn399x(soc_type)? "wcn399x" : "ROME");

>  	if (qca_is_wcn399x(soc_type)) {
>  		bt_dev_info(hdev, "setting up wcn3990");
>  
> @@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>  		hu->hdev->shutdown = qca_power_off;
> -		ret = qca_wcn3990_init(hu);
> -		if (ret)
> -			return ret;
>  
>  		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
>  		if (ret)
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

在 2020-01-11 08:31，Matthias Kaehlcke 写道：
> Hi Rocky,
> 
> On Fri, Jan 10, 2020 at 11:32:14AM +0800, Rocky Liao wrote:
>> This patch adds a unified API qca_power_on() to support both wcn399x 
>> and
>> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
>> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
>> btsoc.
>> It also moves all the power up operation from hdev->open() to
>> hdev->setup().
>> 
>> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
>> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
>> ---
>> 
>> Changes in v2: None
>> Changes in v3:
>>   -moved all the power up operation from open() to setup()
>>   -updated the commit message
>> Changes in v4:
>>   -made a single call to qca_power_on() in setup()
>> 
>> 
>>  drivers/bluetooth/hci_qca.c | 48 
>> +++++++++++++++++++++++--------------
>>  1 file changed, 30 insertions(+), 18 deletions(-)
>> 
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 82e4cd4b6663..6a67e5489b16 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>>  {
>>  	struct qca_serdev *qcadev;
>>  	struct qca_data *qca;
>> -	int ret;
>> 
>>  	BT_DBG("hu %p qca_open", hu);
>> 
>> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>>  	hu->priv = qca;
>> 
>>  	if (hu->serdev) {
>> -
>>  		qcadev = serdev_device_get_drvdata(hu->serdev);
>> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
>> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> -			/* Controller needs time to bootup. */
>> -			msleep(150);
>> -		} else {
>> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>>  			hu->init_speed = qcadev->init_speed;
>>  			hu->oper_speed = qcadev->oper_speed;
>> -			ret = qca_regulator_enable(qcadev);
>> -			if (ret) {
>> -				destroy_workqueue(qca->workqueue);
>> -				kfree_skb(qca->rx_skb);
>> -				hu->priv = NULL;
>> -				kfree(qca);
>> -				return ret;
>> -			}
>>  		}
>>  	}
>> 
>> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart 
>> *hu)
>>  	return 0;
>>  }
>> 
>> +static int qca_power_on(struct hci_dev *hdev)
>> +{
>> +	struct hci_uart *hu = hci_get_drvdata(hdev);
>> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
>> +	struct qca_serdev *qcadev;
>> +	int ret = 0;
>> +
>> +	/* Non-serdev device usually is powered by external power
>> +	 * and don't need additional action in driver for power on
>> +	 */
>> +	if (!hu->serdev)
>> +		return 0;
>> +
>> +	if (qca_is_wcn399x(soc_type)) {
>> +		ret = qca_wcn3990_init(hu);
>> +	} else {
>> +		qcadev = serdev_device_get_drvdata(hu->serdev);
>> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> +		/* Controller needs time to bootup. */
>> +		msleep(150);
>> +	}
>> +
>> +	return ret;
>> +}
>> +
>>  static int qca_setup(struct hci_uart *hu)
>>  {
>>  	struct hci_dev *hdev = hu->hdev;
>> @@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
>>  	 */
>>  	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
>> 
>> +	ret = qca_power_on(hdev);
>> +	if (ret)
>> +		return ret;
>> +
> 
> Now if qca_power_on() fails there is no log entry indicating that 
> Bluetooth
> setup was running. That's why I suggested to put this log entry before
> the call, and remove the corresponding entries from the if/else 
> branches:
> 
> 	bt_dev_info(hdev, "setting up %s",
> 		qca_is_wcn399x(soc_type)? "wcn399x" : "ROME");
> 
Sorry I missed that and will update the patch soon.

>>  	if (qca_is_wcn399x(soc_type)) {
>>  		bt_dev_info(hdev, "setting up wcn3990");
>> 
>> @@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
>>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>>  		hu->hdev->shutdown = qca_power_off;
>> -		ret = qca_wcn3990_init(hu);
>> -		if (ret)
>> -			return ret;
>> 
>>  		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
>>  		if (ret)
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
>> Forum, a Linux Foundation Collaborative Project

[PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
---

Changes in v2: None
Changes in v3:
  -moved all the power up operation from open() to setup()
  -updated the commit message
Changes in v4:
  -made a single call to qca_power_on() in setup()


 drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 82e4cd4b6663..6a67e5489b16 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
 	struct qca_data *qca;
-	int ret;
 
 	BT_DBG("hu %p qca_open", hu);
 
@@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-
 		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
-			gpiod_set_value_cansleep(qcadev->bt_en, 1);
-			/* Controller needs time to bootup. */
-			msleep(150);
-		} else {
+		if (qca_is_wcn399x(qcadev->btsoc_type)) {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
-			ret = qca_regulator_enable(qcadev);
-			if (ret) {
-				destroy_workqueue(qca->workqueue);
-				kfree_skb(qca->rx_skb);
-				hu->priv = NULL;
-				kfree(qca);
-				return ret;
-			}
 		}
 	}
 
@@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	/* Non-serdev device usually is powered by external power
+	 * and don't need additional action in driver for power on
+	 */
+	if (!hu->serdev)
+		return 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+		gpiod_set_value_cansleep(qcadev->bt_en, 1);
+		/* Controller needs time to bootup. */
+		msleep(150);
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
@@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
+	ret = qca_power_on(hdev);
+	if (ret)
+		return ret;
+
 	if (qca_is_wcn399x(soc_type)) {
 		bt_dev_info(hdev, "setting up wcn3990");
 
@@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
 		hu->hdev->shutdown = qca_power_off;
-		ret = qca_wcn3990_init(hu);
-		if (ret)
-			return ret;
 
 		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
 		if (ret)
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

Sorry, please ignore this one. I was wanting to send v5...

在 2020-01-13 12:29，Rocky Liao 写道：
> This patch adds a unified API qca_power_on() to support both wcn399x 
> and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
> btsoc.
> It also moves all the power up operation from hdev->open() to
> hdev->setup().
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
> ---
> 
> Changes in v2: None
> Changes in v3:
>   -moved all the power up operation from open() to setup()
>   -updated the commit message
> Changes in v4:
>   -made a single call to qca_power_on() in setup()
> 
> 
>  drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
>  1 file changed, 30 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 82e4cd4b6663..6a67e5489b16 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>  {
>  	struct qca_serdev *qcadev;
>  	struct qca_data *qca;
> -	int ret;
> 
>  	BT_DBG("hu %p qca_open", hu);
> 
> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>  	hu->priv = qca;
> 
>  	if (hu->serdev) {
> -
>  		qcadev = serdev_device_get_drvdata(hu->serdev);
> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> -			/* Controller needs time to bootup. */
> -			msleep(150);
> -		} else {
> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>  			hu->init_speed = qcadev->init_speed;
>  			hu->oper_speed = qcadev->oper_speed;
> -			ret = qca_regulator_enable(qcadev);
> -			if (ret) {
> -				destroy_workqueue(qca->workqueue);
> -				kfree_skb(qca->rx_skb);
> -				hu->priv = NULL;
> -				kfree(qca);
> -				return ret;
> -			}
>  		}
>  	}
> 
> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
> 
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;
> +
> +	/* Non-serdev device usually is powered by external power
> +	 * and don't need additional action in driver for power on
> +	 */
> +	if (!hu->serdev)
> +		return 0;
> +
> +	if (qca_is_wcn399x(soc_type)) {
> +		ret = qca_wcn3990_init(hu);
> +	} else {
> +		qcadev = serdev_device_get_drvdata(hu->serdev);
> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +		/* Controller needs time to bootup. */
> +		msleep(150);
> +	}
> +
> +	return ret;
> +}
> +
>  static int qca_setup(struct hci_uart *hu)
>  {
>  	struct hci_dev *hdev = hu->hdev;
> @@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
>  	 */
>  	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
> 
> +	ret = qca_power_on(hdev);
> +	if (ret)
> +		return ret;
> +
>  	if (qca_is_wcn399x(soc_type)) {
>  		bt_dev_info(hdev, "setting up wcn3990");
> 
> @@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>  		hu->hdev->shutdown = qca_power_off;
> -		ret = qca_wcn3990_init(hu);
> -		if (ret)
> -			return ret;
> 
>  		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
>  		if (ret)

Re: [PATCH v4] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

Sorry, please ignore this one. I was wanting to send v5...

在 2020-01-13 12:29，Rocky Liao 写道：
> This patch adds a unified API qca_power_on() to support both wcn399x 
> and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the 
> btsoc.
> It also moves all the power up operation from hdev->open() to
> hdev->setup().
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
> ---
> 
> Changes in v2: None
> Changes in v3:
>   -moved all the power up operation from open() to setup()
>   -updated the commit message
> Changes in v4:
>   -made a single call to qca_power_on() in setup()
> 
> 
>  drivers/bluetooth/hci_qca.c | 48 +++++++++++++++++++++++--------------
>  1 file changed, 30 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 82e4cd4b6663..6a67e5489b16 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
>  {
>  	struct qca_serdev *qcadev;
>  	struct qca_data *qca;
> -	int ret;
> 
>  	BT_DBG("hu %p qca_open", hu);
> 
> @@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
>  	hu->priv = qca;
> 
>  	if (hu->serdev) {
> -
>  		qcadev = serdev_device_get_drvdata(hu->serdev);
> -		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
> -			gpiod_set_value_cansleep(qcadev->bt_en, 1);
> -			/* Controller needs time to bootup. */
> -			msleep(150);
> -		} else {
> +		if (qca_is_wcn399x(qcadev->btsoc_type)) {
>  			hu->init_speed = qcadev->init_speed;
>  			hu->oper_speed = qcadev->oper_speed;
> -			ret = qca_regulator_enable(qcadev);
> -			if (ret) {
> -				destroy_workqueue(qca->workqueue);
> -				kfree_skb(qca->rx_skb);
> -				hu->priv = NULL;
> -				kfree(qca);
> -				return ret;
> -			}
>  		}
>  	}
> 
> @@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
>  	return 0;
>  }
> 
> +static int qca_power_on(struct hci_dev *hdev)
> +{
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	enum qca_btsoc_type soc_type = qca_soc_type(hu);
> +	struct qca_serdev *qcadev;
> +	int ret = 0;
> +
> +	/* Non-serdev device usually is powered by external power
> +	 * and don't need additional action in driver for power on
> +	 */
> +	if (!hu->serdev)
> +		return 0;
> +
> +	if (qca_is_wcn399x(soc_type)) {
> +		ret = qca_wcn3990_init(hu);
> +	} else {
> +		qcadev = serdev_device_get_drvdata(hu->serdev);
> +		gpiod_set_value_cansleep(qcadev->bt_en, 1);
> +		/* Controller needs time to bootup. */
> +		msleep(150);
> +	}
> +
> +	return ret;
> +}
> +
>  static int qca_setup(struct hci_uart *hu)
>  {
>  	struct hci_dev *hdev = hu->hdev;
> @@ -1553,6 +1564,10 @@ static int qca_setup(struct hci_uart *hu)
>  	 */
>  	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
> 
> +	ret = qca_power_on(hdev);
> +	if (ret)
> +		return ret;
> +
>  	if (qca_is_wcn399x(soc_type)) {
>  		bt_dev_info(hdev, "setting up wcn3990");
> 
> @@ -1562,9 +1577,6 @@ static int qca_setup(struct hci_uart *hu)
>  		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
>  		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>  		hu->hdev->shutdown = qca_power_off;
> -		ret = qca_wcn3990_init(hu);
> -		if (ret)
> -			return ret;
> 
>  		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
>  		if (ret)

[PATCH v5] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Rocky Liao]

This patch adds a unified API qca_power_on() to support both wcn399x and
Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
It also moves all the power up operation from hdev->open() to
hdev->setup().

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
---

Changes in v2: None
Changes in v3:
  -moved all the power up operation from open() to setup()
  -updated the commit message
Changes in v4:
  -made a single call to qca_power_on() in setup()
Changes in v5:
  -modified the debug log location

 drivers/bluetooth/hci_qca.c | 54 ++++++++++++++++++++++---------------
 1 file changed, 33 insertions(+), 21 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 82e4cd4b6663..992622dc1263 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -541,7 +541,6 @@ static int qca_open(struct hci_uart *hu)
 {
 	struct qca_serdev *qcadev;
 	struct qca_data *qca;
-	int ret;
 
 	BT_DBG("hu %p qca_open", hu);
 
@@ -582,23 +581,10 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-
 		qcadev = serdev_device_get_drvdata(hu->serdev);
-		if (!qca_is_wcn399x(qcadev->btsoc_type)) {
-			gpiod_set_value_cansleep(qcadev->bt_en, 1);
-			/* Controller needs time to bootup. */
-			msleep(150);
-		} else {
+		if (qca_is_wcn399x(qcadev->btsoc_type)) {
 			hu->init_speed = qcadev->init_speed;
 			hu->oper_speed = qcadev->oper_speed;
-			ret = qca_regulator_enable(qcadev);
-			if (ret) {
-				destroy_workqueue(qca->workqueue);
-				kfree_skb(qca->rx_skb);
-				hu->priv = NULL;
-				kfree(qca);
-				return ret;
-			}
 		}
 	}
 
@@ -1531,6 +1517,31 @@ static int qca_wcn3990_init(struct hci_uart *hu)
 	return 0;
 }
 
+static int qca_power_on(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+	enum qca_btsoc_type soc_type = qca_soc_type(hu);
+	struct qca_serdev *qcadev;
+	int ret = 0;
+
+	/* Non-serdev device usually is powered by external power
+	 * and don't need additional action in driver for power on
+	 */
+	if (!hu->serdev)
+		return 0;
+
+	if (qca_is_wcn399x(soc_type)) {
+		ret = qca_wcn3990_init(hu);
+	} else {
+		qcadev = serdev_device_get_drvdata(hu->serdev);
+		gpiod_set_value_cansleep(qcadev->bt_en, 1);
+		/* Controller needs time to bootup. */
+		msleep(150);
+	}
+
+	return ret;
+}
+
 static int qca_setup(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
@@ -1553,24 +1564,25 @@ static int qca_setup(struct hci_uart *hu)
 	 */
 	set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
 
-	if (qca_is_wcn399x(soc_type)) {
-		bt_dev_info(hdev, "setting up wcn3990");
+	bt_dev_info(hdev, "setting up %s",
+		qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME");
 
+	ret = qca_power_on(hdev);
+	if (ret)
+		return ret;
+
+	if (qca_is_wcn399x(soc_type)) {
 		/* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
 		 * setup for every hci up.
 		 */
 		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
 		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
 		hu->hdev->shutdown = qca_power_off;
-		ret = qca_wcn3990_init(hu);
-		if (ret)
-			return ret;
 
 		ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
 		if (ret)
 			return ret;
 	} else {
-		bt_dev_info(hdev, "ROME setup");
 		qca_set_speed(hu, QCA_INIT_SPEED);
 	}
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

Re: [PATCH v5] Bluetooth: hci_qca: Add qca_power_on() API to support both wcn399x and Rome power up

[Marcel Holtmann]

Hi Rocky,

> This patch adds a unified API qca_power_on() to support both wcn399x and
> Rome power on. For wcn399x it calls the qca_wcn3990_init() to init the
> regulators, and for Rome it pulls up the bt_en GPIO to power up the btsoc.
> It also moves all the power up operation from hdev->open() to
> hdev->setup().
> 
> Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
> ---
> 
> Changes in v2: None
> Changes in v3:
>  -moved all the power up operation from open() to setup()
>  -updated the commit message
> Changes in v4:
>  -made a single call to qca_power_on() in setup()
> Changes in v5:
>  -modified the debug log location
> 
> drivers/bluetooth/hci_qca.c | 54 ++++++++++++++++++++++---------------
> 1 file changed, 33 insertions(+), 21 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel