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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2019-01-24 13:22:57 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2019-01-25 20:18:10 +0100 |
| commit | ec33745bccc8f336957c751f4153421cc9ef5a54 (patch) | |
| tree | 16dc96e74c59b3b43f8a44c97ab293724475c8fc /arch/arm/boot/dts | |
| parent | ARM: dts: exynos: Fix eMMC regulator properties on Odroid U3 boards (diff) | |
| download | linux-ec33745bccc8f336957c751f4153421cc9ef5a54.tar.xz linux-ec33745bccc8f336957c751f4153421cc9ef5a54.zip | |
ARM: dts: exynos: Fix pinctrl definition for eMMC RTSN line on Odroid X2/U3
Commit 225da7e65a03 ("ARM: dts: add eMMC reset line for
exynos4412-odroid-common") added MMC power sequence for eMMC card of
Odroid X2/U3. It reused generic sd1_cd pin control configuration node
and only disabled pull-up. However that time the pinctrl configuration
was not applied during MMC power sequence driver initialization. This
has been changed later by commit d97a1e5d7cd2 ("mmc: pwrseq: convert to
proper platform device").
It turned out then, that the provided pinctrl configuration is not
correct, because the eMMC_RTSN line is being re-configured as 'special
function/card detect function for mmc1 controller' not the simple
'output', thus the power sequence driver doesn't really set the pin
value. This in effect broke the reboot of Odroid X2/U3 boards. Fix this
by providing separate node with eMMC_RTSN pin configuration.
Cc: <stable@vger.kernel.org>
Reported-by: Markus Reichl <m.reichl@fivetechno.de>
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Fixes: 225da7e65a03 ("ARM: dts: add eMMC reset line for exynos4412-odroid-common")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index 24bcad3dfba9..08d3a0a7b4eb 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -49,7 +49,7 @@ }; emmc_pwrseq: pwrseq { - pinctrl-0 = <&sd1_cd>; + pinctrl-0 = <&emmc_rstn>; pinctrl-names = "default"; compatible = "mmc-pwrseq-emmc"; reset-gpios = <&gpk1 2 GPIO_ACTIVE_LOW>; @@ -165,12 +165,6 @@ cpu0-supply = <&buck2_reg>; }; -/* RSTN signal for eMMC */ -&sd1_cd { - samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; - samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>; -}; - &pinctrl_1 { gpio_power_key: power_key { samsung,pins = "gpx1-3"; @@ -188,6 +182,11 @@ samsung,pins = "gpx3-7"; samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>; }; + + emmc_rstn: emmc-rstn { + samsung,pins = "gpk1-2"; + samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; + }; }; &ehci { |