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From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	shawnguo@kernel.org, s.hauer@pengutronix.de
Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Haibo Chen <haibo.chen@nxp.com>, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH 14/15] arm64: dts: imx8m[m,p]-evk: change to use off-on-delay-us in regulator
Date: Thu, 20 Oct 2022 17:59:33 +0800	[thread overview]
Message-ID: <20221020095934.1659449-15-peng.fan@oss.nxp.com> (raw)
In-Reply-To: <20221020095934.1659449-1-peng.fan@oss.nxp.com>

From: Haibo Chen <haibo.chen@nxp.com>

After commit f7907e57aea2 ("regulator: fixed: add off-on-delay"), user
can use "off-on-delay-us" to define the regulator off-delay time.

For SD card, according to the spec requirement, for sd card power reset
operation, it need sd card supply voltage to be lower than 0.5v and keep
over 1ms, otherwise, next time power back the sd card supply voltage to
3.3v, sd card can't support SD3.0 mode again.

This patch add the off-on-delay-us to each board, make sure the sd power
reset behavior is align with the specification. Without this patch, when
do quick system suspend/resume test, some sd card can't work at SD3.0 mode
after system resume back.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dts  | 2 +-
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 1 +
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts  | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index c93387fcd498..898735965ac9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -22,7 +22,7 @@ reg_sd1_vmmc: sd1_regulator {
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&gpio2 10 GPIO_ACTIVE_HIGH>;
-		off-on-delay = <20000>;
+		off-on-delay-us = <20000>;
 		startup-delay-us = <100>;
 		enable-active-high;
 	};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index ce450965e837..fdbcd2483efc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -56,6 +56,7 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
 		enable-active-high;
 	};
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 82387b9cb800..07d9fb2aacf8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -46,6 +46,7 @@ reg_usdhc2_vmmc: regulator-vsd-3v3 {
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
 		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
 		enable-active-high;
 	};
 
-- 
2.37.1


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  parent reply	other threads:[~2022-10-20 10:13 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-20  9:59 [PATCH 00/15] arm64: dts: imx8m-evk: misc dts update Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 01/15] arm64: dts: imx8mp: add mlmix power domain Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 02/15] arm64: dts: imx8mp-evk: correct pcie pad settings Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 03/15] arm64: dts: imx8mp-evk: fix BUCK/LDO voltage Peng Fan (OSS)
2022-10-20 11:02   ` Marco Felsch
2022-10-21  9:13     ` Peng Fan
2022-10-21  9:44       ` Jacky Bai
2022-10-20  9:59 ` [PATCH 04/15] ARM64: dts: imx8mp-evk: add pwm support Peng Fan (OSS)
2022-10-20 11:04   ` Marco Felsch
2022-10-20  9:59 ` [PATCH 05/15] arm64: dts: imx8mp-evk: enable uart1/3 ports Peng Fan (OSS)
2022-10-20 11:07   ` Marco Felsch
2022-10-21  8:55     ` Peng Fan
2022-10-21  9:09       ` Marco Felsch
2022-10-21  9:31         ` Peng Fan
2022-10-21  9:53           ` Marco Felsch
2022-10-20  9:59 ` [PATCH 06/15] arm64: dts: imx8mp-evk: enable fspi nor on imx8mp evk Peng Fan (OSS)
2022-10-20 11:12   ` Marco Felsch
2022-10-20  9:59 ` [PATCH 07/15] arm64: dts: imx8mp-evk: enable I2C2 node Peng Fan (OSS)
2022-10-20 12:21   ` Marco Felsch
2022-10-20  9:59 ` [PATCH 08/15] arm64: dts: imx8mn-evk: update vdd_soc dvs voltage Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 09/15] arm64: dts: imx8mn-evk: set off-on-delay-us in regulator Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 10/15] arm64: dts: imx8mn-evk: add i2c gpio recovery settings Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 11/15] arm64: dts: imx8mn-evk: enable uart1 Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 12/15] arm64: dts: imx8mn-evk: enable usdhc1 Peng Fan (OSS)
2022-10-20  9:59 ` [PATCH 13/15] arm64: dts: imx8mm-evk: Enable usdhc1 to support wifi Peng Fan (OSS)
2022-10-20  9:59 ` Peng Fan (OSS) [this message]
2022-10-20 14:13   ` [PATCH 14/15] arm64: dts: imx8m[m, p]-evk: change to use off-on-delay-us in regulator Marco Felsch
2022-10-20  9:59 ` [PATCH 15/15] arm64: dts: imx8mm-evk: add vcc supply for pca6416 Peng Fan (OSS)

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