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From: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
To: Krzysztof Kozlowski <krzk@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Linus Walleij <linusw@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1] pinctrl: qcom: lpass-lpi: drop unused runtime-PM write helper
Date: Wed, 10 Jun 2026 14:27:45 +0530	[thread overview]
Message-ID: <0fc4d9d4-2943-4ed8-a8ea-014e83c74e5c@oss.qualcomm.com> (raw)
In-Reply-To: <f03850f6-186d-4988-a450-e6e95f24a551@kernel.org>



On 6/10/2026 1:55 PM, Krzysztof Kozlowski wrote:
> On 10/06/2026 10:08, Ajay Kumar Nandam wrote:
>> lpi_gpio_write() became unused after the PM clock runtime conversion
>> switched write paths to __lpi_gpio_write() inside callers that already
>> hold an active runtime-PM reference.
>>
>> With -Werror this triggers:
>>    error: 'lpi_gpio_write' defined but not used [-Wunused-function]
>>
>> Remove the dead wrapper.
>>
>> Fixes: b719ede389d8 ("pinctrl: qcom: lpass-lpi: Switch to PM clock framework for runtime PM")
> 
> Please add Reported-by credits, at least Nathan as he bisected it.
> 
> 
>> Signed-off-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com>
>> ---
>>   drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 14 --------------
>>   1 file changed, 14 deletions(-)
>>
>> diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
>> index 4d758fd117c4..fe7ec0176081 100644
>> --- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
>> +++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
>> @@ -79,20 +79,6 @@ static int lpi_gpio_read(struct lpi_pinctrl *state, unsigned int pin,
>>   	return pm_runtime_put_autosuspend(state->dev);
>>   }
>>   
>> -static int lpi_gpio_write(struct lpi_pinctrl *state, unsigned int pin,
>> -			  unsigned int addr, unsigned int val)
> 
> So why do we need __lpi_gpio_write()?

Hi Krzysztof,

Thanks, good point.

I will respin with:
Reported-by: Nathan Chancellor <nathan@kernel.org>

About __lpi_gpio_write(): it is still needed for the in-callers path 
where runtime PM is already held and we only need the raw MMIO helper. 
The unused wrapper is lpi_gpio_write(), so this fix removes only that 
dead function.

Thanks,
Ajay


> 
> Best regards,
> Krzysztof


  reply	other threads:[~2026-06-10  8:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-10  8:08 Ajay Kumar Nandam
2026-06-10  8:25 ` Krzysztof Kozlowski
2026-06-10  8:57   ` Ajay Kumar Nandam [this message]
2026-06-10  9:00     ` Krzysztof Kozlowski
2026-06-10  9:14       ` Ajay Kumar Nandam
2026-06-10 18:11       ` Ajay Kumar Nandam

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