[PATCH v1 2/2] arm64: dts: freescale: imx8mp-verdin: Fix SD regulator startup delay

Francesco Dolcini posted 2 patches 1 month ago
[PATCH v1 2/2] arm64: dts: freescale: imx8mp-verdin: Fix SD regulator startup delay
Posted by Francesco Dolcini 1 month ago
From: Francesco Dolcini <francesco.dolcini@toradex.com>

The power switch used to power the SD card interface might have
more than 2ms turn-on time, increase the startup delay to 20ms to
prevent failures.

Fixes: a39ed23bdf6e ("arm64: dts: freescale: add initial support for verdin imx8m plus")
Cc: <stable@vger.kernel.org>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
index e9518b7c7aa8..b8c24fe228fa 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
@@ -175,7 +175,7 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 		regulator-max-microvolt = <3300000>;
 		regulator-min-microvolt = <3300000>;
 		regulator-name = "+V3.3_SD";
-		startup-delay-us = <2000>;
+		startup-delay-us = <20000>;
 	};
 
 	reserved-memory {
-- 
2.39.5