linux-kernel - Re: [PATCH 3/4] Input: pwm-vibra

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Message-ID: <8a54d0ec-8a22-9ffd-43a4-55da988fbeb1@linaro.org>
Date:   Tue, 2 May 2023 12:39:10 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Luca Weiss <luca@...tu.xyz>, Brian Masney <bmasney@...hat.com>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Sebastian Reichel <sre@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Brian Masney <masneyb@...tation.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 3/4] Input: pwm-vibra - add support for enable GPIO



On 28.04.2023 18:06, Luca Weiss wrote:
> On Freitag, 28. April 2023 01:29:27 CEST Brian Masney wrote:
>> On Thu, Apr 27, 2023 at 10:34:28PM +0200, Luca Weiss wrote:
>>> Some pwm vibrators have a dedicated enable GPIO that needs to be set
>>> high so that the vibrator works. Add support for that optionally.
>>>
>>> Signed-off-by: Luca Weiss <luca@...tu.xyz>
>>
>> Hi Luca,
>>
>> Thank you for picking up this work!
>>
>>> +	vibrator->enable_gpio = devm_gpiod_get_optional(&pdev->dev, 
> "enable",
>>> +							
> GPIOD_OUT_LOW);
>>> +	err = PTR_ERR_OR_ZERO(vibrator->enable_gpio);
>>> +	if (err) {
>>> +		if (err != -EPROBE_DEFER)
>>> +			dev_err(&pdev->dev, "Failed to request enable 
> gpio: %d\n",
>>> +				err);
>>> +		return err;
>>> +	}
>>> +
>>
Looks like your email client messes with the replies.. perhaps it tries
to round them to n characters forcefully?

Konrad
>> Take a look at dev_err_probe() to remove the -EPROBE_DEFER check.
> 
> The input subsystem doesn't like dev_err_probe for some reason, you should 
> quickly find examples of that being rejected on the mailing list (or see   
> "git grep dev_err_probe drivers/input/")
> 
>>
>> With that fixed:
>>
>> Reviewed-by: Brian Masney <bmasney@...hat.com>
> 
> Thanks for the reviews!
> 
>