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From: Stephan Gerhold <stephan@gerhold.net>
Date: Sun, 23 Jul 2023 12:54:41 +0200
Subject: [PATCH] arm64: dts: qcom: msm8939-samsung-a7: Drop internal pull
for SD CD
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To: Bjorn Andersson <andersson@kernel.org>
Cc: Andy Gross <agross@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
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arm64: dts: qcom: msm8939-samsung-a7: Drop internal pull for SD CD
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Commit Message
Stephan Gerhold
July 23, 2023, 10:54 a.m. UTC
A7 seems to have external pull-up for the SD card chip detect (like most MSM8916/MSM8939 devices) so drop the internal pull-up. It's not necessary. Tested-by: "Lin, Meng-Bo" <linmengbo0689@protonmail.com> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> --- arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: 34e472f41d9cd04400b80649ce82cfe11fbe135a change-id: 20230723-a7sdc2cdnopull-3eb4cadf8f1f Best regards,
Comments
On 23.07.2023 12:54, Stephan Gerhold wrote: > A7 seems to have external pull-up for the SD card chip detect (like > most MSM8916/MSM8939 devices) so drop the internal pull-up. It's not > necessary. > > Tested-by: "Lin, Meng-Bo" <linmengbo0689@protonmail.com> > Signed-off-by: Stephan Gerhold <stephan@gerhold.net> > --- If you say so.. Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org> Konrad
On Sun, 23 Jul 2023 12:54:41 +0200, Stephan Gerhold wrote: > A7 seems to have external pull-up for the SD card chip detect (like > most MSM8916/MSM8939 devices) so drop the internal pull-up. It's not > necessary. > > Applied, thanks! [1/1] arm64: dts: qcom: msm8939-samsung-a7: Drop internal pull for SD CD commit: ee0e92b8e7b5894daf5c94e6433a1989f7233fbe Best regards,
diff --git a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts index 66e56ac59998..ba652909d162 100644 --- a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts +++ b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts @@ -448,7 +448,7 @@ sdc2_cd_default: sdc2-cd-default-state { pins = "gpio38"; function = "gpio"; drive-strength = <2>; - bias-pull-up; + bias-disable; }; sensor_i2c_default: sensor-i2c-default-state {