linux-kernel - Re: [PATCH 2/3] Bluetooth: hci_qca: fix QCA6390 support on non-DT platforms

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Message-ID: <a3bd82fa-eb27-4a71-96d8-c768b9866bf1@penguintechs.org>
Date: Wed, 7 Aug 2024 12:09:38 -0700
From: Wren Turkal <wt@...guintechs.org>
To: Bartosz Golaszewski <brgl@...ev.pl>, Marcel Holtmann
 <marcel@...tmann.org>, Luiz Augusto von Dentz <luiz.dentz@...il.com>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 2/3] Bluetooth: hci_qca: fix QCA6390 support on non-DT
 platforms

On 7/31/24 8:20 AM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> QCA6390 can albo be used on non-DT systems so we must not make the power
> sequencing the only option. Check if the serdev device consumes an OF
> node. If so: honor the new contract as per the DT bindings. If not: fall
> back to the previous behavior by falling through to the existing
> default label.
> 
> Fixes: 9a15ce685706 ("Bluetooth: qca: use the power sequencer for QCA6390")
> Reported-by: Wren Turkal <wt@...guintechs.org>
> Closes: https://lore.kernel.org/linux-bluetooth/27e6a6c5-fb63-4219-be0b-eefa2c116e06@penguintechs.org/
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Was this commit supposed to have a Tested-by: footer for me?

> ---
>   drivers/bluetooth/hci_qca.c | 13 ++++++++-----
>   1 file changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index a20dd5015346..2baed7d0f479 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -2412,11 +2412,14 @@ static int qca_serdev_probe(struct serdev_device *serdev)
>   		break;
>   
>   	case QCA_QCA6390:
> -		qcadev->bt_power->pwrseq = devm_pwrseq_get(&serdev->dev,
> -							   "bluetooth");
> -		if (IS_ERR(qcadev->bt_power->pwrseq))
> -			return PTR_ERR(qcadev->bt_power->pwrseq);
> -		break;
> +		if (dev_of_node(&serdev->dev)) {
> +			qcadev->bt_power->pwrseq = devm_pwrseq_get(&serdev->dev,
> +								   "bluetooth");
> +			if (IS_ERR(qcadev->bt_power->pwrseq))
> +				return PTR_ERR(qcadev->bt_power->pwrseq);
> +			break;
> +		}
> +		fallthrough;
>   
>   	default:
>   		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
> 

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