Linux GPIO subsystem development
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From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Sneh Mankad <sneh.mankad@oss.qualcomm.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Linus Walleij <linusw@kernel.org>,
	Yuanjie Yang <quic_yuanjiey@quicinc.com>
Cc: linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] pinctrl: qcom: Modify MSM_PULL_MASK to accurately represent PULL bits
Date: Wed, 3 Jun 2026 15:53:00 +0200	[thread overview]
Message-ID: <1de59ca1-0063-4ef4-b78d-acd7b3cbfabe@oss.qualcomm.com> (raw)
In-Reply-To: <20260529-tlmm_test_changes-v1-1-88bfdccb4369@oss.qualcomm.com>



On 29-May-26 14:55, Sneh Mankad wrote:
> MSM_PULL_MASK currently spans bits [2:0], but the GPIO_PULL field in the
> GPIO_CFG register only occupies bits [1:0]. Bit 2 belongs to
> FUNC_SEL.
> 
> MSM_PULL_MASK is used to isolate the GPIO_PULL bits before writing the
> pull configuration (PULL_DOWN: 0x1, PULL_UP: 0x3) to the GPIO_CFG
> register. Narrow it to bits [1:0] to prevent unintended modification of
> the FUNC_SEL field.
> 
> This causes no functional change since the driver currently does not
> modify the FUNC_SEL bit, but align the mask with hardware configuration
> nonetheless.
> 
> Signed-off-by: Sneh Mankad <sneh.mankad@oss.qualcomm.com>
> ---

Seems to be the case down to MSM8960 indeed!

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

  reply	other threads:[~2026-06-03 13:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-29 12:55 [PATCH 0/3] pinctrl: qcom: Correct MSM_PULL_MASK and fix resolving TLMM register address Sneh Mankad
2026-05-29 12:55 ` [PATCH 1/3] pinctrl: qcom: Modify MSM_PULL_MASK to accurately represent PULL bits Sneh Mankad
2026-06-03 13:53   ` Konrad Dybcio [this message]
2026-06-08  3:32   ` Dmitry Baryshkov
2026-05-29 12:55 ` [PATCH 2/3] pinctrl: qcom: Fix resolving register base address from device node Sneh Mankad
2026-06-08  3:34   ` Dmitry Baryshkov
2026-05-29 12:55 ` [PATCH 3/3] pinctrl: qcom: Avoid assigning thread_op_remain in unthreaded test Sneh Mankad
2026-06-03 13:58   ` Konrad Dybcio
2026-06-10  6:16     ` Sneh Mankad
2026-06-15 14:38       ` Konrad Dybcio
2026-06-08 19:31 ` [PATCH 0/3] pinctrl: qcom: Correct MSM_PULL_MASK and fix resolving TLMM register address Linus Walleij

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