Re: [PATCH] Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()

From: Wren Turkal <wt@penguintechs.org>
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	Zijun Hu <quic_zijuhu@quicinc.com>,
	Marcel Holtmann <marcel@holtmann.org>,
	Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: Re: [PATCH] Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()
Date: Wed, 24 Apr 2024 04:16:09 -0700	[thread overview]
Message-ID: <b982b73d-0540-409c-a6e2-0e03ecb11715@penguintechs.org> (raw)
In-Reply-To: <CAMRc=MepDwUbAKrWgm0CXKObqy8=igtug0QDgo-CgwxjZCAC2Q@mail.gmail.com>

On 4/24/24 2:04 AM, Bartosz Golaszewski wrote:
> On Wed, 24 Apr 2024 07:07:05 +0200, Wren Turkal<wt@penguintechs.org>  said:
>> On 4/22/24 6:00 AM, Bartosz Golaszewski wrote:
>>> From: Bartosz Golaszewski<bartosz.golaszewski@linaro.org>
>>>
>>> Any return value from gpiod_get_optional() other than a pointer to a
>>> GPIO descriptor or a NULL-pointer is an error and the driver should
>>> abort probing. That being said: commit 56d074d26c58 ("Bluetooth: hci_qca:
>>> don't use IS_ERR_OR_NULL() with gpiod_get_optional()") no longer sets
>>> power_ctrl_enabled on NULL-pointer returned by
>>> devm_gpiod_get_optional(). Restore this behavior but bail-out on errors.
>> Nack. This patch does fixes neither the disable/re-enable problem nor
>> the warm boot problem.
>>
>> Zijun replied to this patch also with what I think is the proper
>> reasoning for why it doesn't fix my setup.
>>
> Indeed, I only addressed a single issue here and not the code under the
> default: label of the switch case. Sorry.
> 
> Could you give the following diff a try?

I had a feeling that was what was going on. I'll give the patch a shot.

wt
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