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arm64: dts: rockchip: fix emmc reset polarity on px30-cobra

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Technically, the reset signal is active low - it's called RST_n after all.

But it is ignored completely unless RST_n_FUNCTION=1 (byte 162 in extcsd)
is set in the emmc. It is 0 per default.

For emmcs that have RST_n_FUNCTION=1 we failed like this:

	[    3.074480] mmc1: Failed to initialize a non-removable card

With this change they work normally.

Cc: stable@vger.kernel.org
Fixes: bb510ddc9d ("arm64: dts: rockchip: add px30-cobra base dtsi and board variants")
Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@cherry.de>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://patch.msgid.link/20260609081728.30616-2-jakobunt@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Jakob Unterwurzacher 2026-06-09 10:17:25 +02:00 committed by Heiko Stuebner
parent dc59e4fea9
commit 85babf4751
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/boot/dts/rockchip/px30-cobra.dtsi
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@ -35,7 +35,7 @@ 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 {