linux-kernel - Re: [PATCH 2/2] Bluetooth: qca: run the power-on/off sequence for QCA6390 too

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Message-ID: <ZW8N3BHQTUGtIx_W@hovoldconsulting.com>
Date:   Tue, 5 Dec 2023 12:47:40 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Alex Elder <elder@...aro.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 2/2] Bluetooth: qca: run the power-on/off sequence for
 QCA6390 too

On Tue, Dec 05, 2023 at 12:09:03PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> The Bluetooth module on QCA6390 needs to be powered-on by enabling the
> relevant regulators and driving the enable GPIO high. We can reuse the
> power sequence for the WNC models.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  drivers/bluetooth/hci_qca.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 7f25931a946e..351ba904c8c2 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1788,6 +1788,7 @@ static int qca_power_on(struct hci_dev *hdev)
>  	case QCA_WCN6750:
>  	case QCA_WCN6855:
>  	case QCA_WCN7850:
> +	case QCA_QCA6390:
>  		ret = qca_regulator_init(hu);
>  		break;
>  
> @@ -2137,6 +2138,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
>  
>  	case QCA_WCN6750:
>  	case QCA_WCN6855:
> +	case QCA_QCA6390:
>  		gpiod_set_value_cansleep(qcadev->bt_en, 0);
>  		msleep(100);
>  		qca_regulator_disable(qcadev);
> @@ -2284,6 +2286,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
>  	case QCA_WCN6750:
>  	case QCA_WCN6855:
>  	case QCA_WCN7850:
> +	case QCA_QCA6390:
>  		qcadev->bt_power = devm_kzalloc(&serdev->dev,
>  						sizeof(struct qca_power),
>  						GFP_KERNEL);
> @@ -2394,6 +2397,7 @@ static void qca_serdev_remove(struct serdev_device *serdev)
>  	case QCA_WCN6750:
>  	case QCA_WCN6855:
>  	case QCA_WCN7850:
> +	case QCA_QCA6390:
>  		if (power->vregs_on) {
>  			qca_power_shutdown(&qcadev->serdev_hu);
>  			break;

These two patches should also be squashed into one. Makes no sense to
separate them.

Johan