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arm64: dts: rockchip: fix eMMC reset polarity on PP-1516

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According to the Jedec 5.1 specification, the device is held in reset
when RST_n is low, therefore the polarity of the line must be that, as
specified in the Device Tree binding (mmc/mmc-pwrseq-emmc.yaml).

Due to the wrong polarity, eMMC devices with RST_n_FUNCTION[162]
bitfield [1:0] set to 0x1 (the default is 0x0) will be held in reset
forever.

Cc: stable@vger.kernel.org
Fixes: 56198acdbf ("arm64: dts: rockchip: add px30-pp1516 base dtsi and board variants")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://patch.msgid.link/20260612-pp1516-emmc-polarity-v1-1-4816c1c909f7@cherry.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Quentin Schulz 2026-06-12 18:47:34 +02:00 committed by Heiko Stuebner
parent 85babf4751
commit 2a08921edc
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/boot/dts/rockchip/px30-pp1516.dtsi
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@ -33,7 +33,7 @@ emmc_pwrseq: emmc-pwrseq {
compatible = "mmc-pwrseq-emmc";
pinctrl-0 = <&emmc_reset>;
pinctrl-names = "default";
reset-gpios = <&gpio1 RK_PB3 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio1 RK_PB3 GPIO_ACTIVE_LOW>;
};
gpio-leds {