Re: [PATCH v2] Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()

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On 4/24/24 6:22 AM, quic_zijuhu wrote:
On 4/24/2024 9:18 PM, Bartosz Golaszewski wrote:
On Wed, 24 Apr 2024 at 15:10, Wren Turkal <wt@xxxxxxxxxxxxxxxx> wrote:

On 4/24/24 5:29 AM, Bartosz Golaszewski wrote:
From: Bartosz Golaszewski<bartosz.golaszewski@xxxxxxxxxx>

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.
While at it: also bail-out on error returned when trying to get the
"swctrl" GPIO.

Reported-by: Wren Turkal<wt@xxxxxxxxxxxxxxxx>
Reported-by: Zijun Hu<quic_zijuhu@xxxxxxxxxxx>
Closes:https://lore.kernel.org/linux-bluetooth/1713449192-25926-2-git-send-email-quic_zijuhu@xxxxxxxxxxx/
Fixes: 56d074d26c58 ("Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()")
Reviewed-by: Krzysztof Kozlowski<krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski<bartosz.golaszewski@xxxxxxxxxx>

Tested-by: "Wren Turkal" <wt@xxxxxxxxxxxxxxxx>


Like this?

Yes, awesome, thanks.

This is how reviewing works too in the kernel, look at what Krzysztof
did under v1, he just wrote:

Reviewed-by: Krzysztof Kozlowski<krzysztof.kozlowski@xxxxxxxxxx>

v1 have obvious something wrong as i pointed and verified.
so i think it is not suitable to attach v1's review-by tag to v2 anyway.

@Zijun, your concern is that current DTs may not define the gpio and this will cause the bluetooth not to work?

Would that not more appropriately be fixed by machine-specific fixups for the DT?


And mailing list tools will pick it up.

Bartosz


--
You're more amazing than you think!




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