From: Francesco Dolcini <francesco@dolcini.it>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: [PATCH v1 1/2] arm64: dts: freescale: imx8mm-verdin: Fix SD regulator startup delay
Date: Thu, 24 Oct 2024 15:06:50 +0200 [thread overview]
Message-ID: <20241024130651.49718-2-francesco@dolcini.it> (raw)
In-Reply-To: <20241024130651.49718-1-francesco@dolcini.it>
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: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Cc: <stable@vger.kernel.org>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index c20c2da17524..01042c1e9e7d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -162,7 +162,7 @@ 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
next prev parent reply other threads:[~2024-10-24 13:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-24 13:06 [PATCH v1 0/2] arm64: dts: freescale: imx8m[mp]-verdin: Fix SD regulator startup delay Francesco Dolcini
2024-10-24 13:06 ` Francesco Dolcini [this message]
2024-10-24 13:06 ` [PATCH v1 2/2] arm64: dts: freescale: imx8mp-verdin: " Francesco Dolcini
2024-11-02 3:03 ` [PATCH v1 0/2] arm64: dts: freescale: imx8m[mp]-verdin: " Shawn Guo
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