* [RFT] arm64: ARM: dts: exynos: Remove double SD card detect pin inversion on TM2 @ 2018-09-21 18:30 ` Krzysztof Kozlowski 2018-09-24 7:41 ` Marek Szyprowski 0 siblings, 1 reply; 2+ messages in thread From: Krzysztof Kozlowski @ 2018-09-21 18:30 UTC (permalink / raw) To: linux-arm-kernel The SDHCI standard, MMC host controller bindings and MMC core defines card detect pin as active low. Therefore there is no point to invert it twice. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi index a1e3194b7483..86d8ddc3288a 100644 --- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi @@ -939,8 +939,7 @@ status = "okay"; cap-sd-highspeed; disable-wp; - cd-gpios = <&gpa2 4 GPIO_ACTIVE_HIGH>; - cd-inverted; + cd-gpios = <&gpa2 4 GPIO_ACTIVE_LOW>; card-detect-delay = <200>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; -- 2.17.1 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* [RFT] arm64: ARM: dts: exynos: Remove double SD card detect pin inversion on TM2 2018-09-21 18:30 ` [RFT] arm64: ARM: dts: exynos: Remove double SD card detect pin inversion on TM2 Krzysztof Kozlowski @ 2018-09-24 7:41 ` Marek Szyprowski 0 siblings, 0 replies; 2+ messages in thread From: Marek Szyprowski @ 2018-09-24 7:41 UTC (permalink / raw) To: linux-arm-kernel Hi Krzysztof, On 2018-09-21 20:30, Krzysztof Kozlowski wrote: > The SDHCI standard, MMC host controller bindings and MMC core defines > card detect pin as active low. Therefore there is no point to invert it > twice. > > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Works fine on TM2 and TM2e. However I'm not sure if it makes sense to refer to the SDHCI standard, as Exynos5433 has only DWMMC host controllers. Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi > index a1e3194b7483..86d8ddc3288a 100644 > --- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi > +++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi > @@ -939,8 +939,7 @@ > status = "okay"; > cap-sd-highspeed; > disable-wp; > - cd-gpios = <&gpa2 4 GPIO_ACTIVE_HIGH>; > - cd-inverted; > + cd-gpios = <&gpa2 4 GPIO_ACTIVE_LOW>; > card-detect-delay = <200>; > samsung,dw-mshc-ciu-div = <3>; > samsung,dw-mshc-sdr-timing = <0 4>; Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland ^ permalink raw reply [flat|nested] 2+ messages in thread
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2018-09-21 18:30 ` [RFT] arm64: ARM: dts: exynos: Remove double SD card detect pin inversion on TM2 Krzysztof Kozlowski
2018-09-24 7:41 ` Marek Szyprowski
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