* [PATCH v1] arm64: dts: imx8mp-verdin: Label ldo5 and link to usdhc2
@ 2024-01-09 12:16 Philippe Schenker
2024-02-05 7:24 ` Shawn Guo
0 siblings, 1 reply; 2+ messages in thread
From: Philippe Schenker @ 2024-01-09 12:16 UTC (permalink / raw)
To: devicetree, Shawn Guo, Sascha Hauer
Cc: Francesco Dolcini, Philippe Schenker, Conor Dooley, Fabio Estevam,
Krzysztof Kozlowski, NXP Linux Team, Pengutronix Kernel Team,
Rob Herring, linux-arm-kernel, linux-kernel
From: Philippe Schenker <philippe.schenker@impulsing.ch>
This commit labels LDO5 as `reg_vdd_sdio` in `imx8mp-verdin.dtsi` to
facilitate changing its voltage to 1.8V, necessary for an SDIO
peripheral that requires 1.8V at default and high-speed modes.
Additionally, it links `reg_vdd_sdio` to `&usdhc2`, aligning with the
hardware configuration specified in the datasheet.
Signed-off-by: Philippe Schenker <philippe.schenker@impulsing.ch>
---
arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
index 04f2083c4ab2..837db8961ba7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
@@ -535,7 +535,7 @@ LDO4 {
regulator-name = "On-module +V3.3_ADC (LDO4)";
};
- LDO5 {
+ reg_vdd_sdio: LDO5 {
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <1800000>;
regulator-name = "On-module +V3.3_1.8_SD (LDO5)";
@@ -873,6 +873,7 @@ &usdhc2 {
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_cd>;
pinctrl-3 = <&pinctrl_usdhc2_sleep>, <&pinctrl_usdhc2_cd_sleep>;
vmmc-supply = <®_usdhc2_vmmc>;
+ vqmmc-supply = <®_vdd_sdio>;
};
/* On-module eMMC */
--
2.34.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v1] arm64: dts: imx8mp-verdin: Label ldo5 and link to usdhc2
2024-01-09 12:16 [PATCH v1] arm64: dts: imx8mp-verdin: Label ldo5 and link to usdhc2 Philippe Schenker
@ 2024-02-05 7:24 ` Shawn Guo
0 siblings, 0 replies; 2+ messages in thread
From: Shawn Guo @ 2024-02-05 7:24 UTC (permalink / raw)
To: Philippe Schenker
Cc: devicetree, Shawn Guo, Sascha Hauer, Francesco Dolcini,
Philippe Schenker, Conor Dooley, Fabio Estevam,
Krzysztof Kozlowski, NXP Linux Team, Pengutronix Kernel Team,
Rob Herring, linux-arm-kernel, linux-kernel
On Tue, Jan 09, 2024 at 01:16:27PM +0100, Philippe Schenker wrote:
> From: Philippe Schenker <philippe.schenker@impulsing.ch>
>
> This commit labels LDO5 as `reg_vdd_sdio` in `imx8mp-verdin.dtsi` to
> facilitate changing its voltage to 1.8V, necessary for an SDIO
> peripheral that requires 1.8V at default and high-speed modes.
>
> Additionally, it links `reg_vdd_sdio` to `&usdhc2`, aligning with the
> hardware configuration specified in the datasheet.
>
> Signed-off-by: Philippe Schenker <philippe.schenker@impulsing.ch>
Applied, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
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