diff mbox series

[v2,2/8] ARM: dts: microchip: sam9x60ek: Add power-supply properties for sdmmc nodes

Message ID 20240205080027.4565-3-mihai.sain@microchip.com
State New
Headers
Series Add power-supply properties for sdmmc nodes on Microchip boards |

Commit Message

Mihai Sain Feb. 5, 2024, 8 a.m. UTC 
  The sdmmc0 and sdmmc1 controllers are powered from 3.3V regulator.
Add vmmc-supply and vqmmc-supply properties to sdmmc nodes.
The sdmmc controller from SAM9X60 MPU doesn't support the IO voltage signaling/switching required by the UHS sd-card.
In order to use the sd high-speed mode, keep vqmmc at 3V3.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
---
 arch/arm/boot/dts/microchip/at91-sam9x60ek.dts | 4 ++++
 1 file changed, 4 insertions(+)

Comments

claudiu beznea Feb. 6, 2024, 5:54 a.m. UTC | #1 
Hi, Mihai,

On 05.02.2024 10:00, Mihai Sain wrote:
> The sdmmc0 and sdmmc1 controllers are powered from 3.3V regulator.
> Add vmmc-supply and vqmmc-supply properties to sdmmc nodes.
> The sdmmc controller from SAM9X60 MPU doesn't support the IO voltage signaling/switching required by the UHS sd-card.

Please wrap the line at 75 chars (see [1]).

Thank you,
Claudiu Beznea

[1]
https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format.

> In order to use the sd high-speed mode, keep vqmmc at 3V3.
> 
> Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
> ---
>  arch/arm/boot/dts/microchip/at91-sam9x60ek.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
> index f3cbb675cea4..b19a0956dc97 100644
> --- a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
> +++ b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
> @@ -560,6 +560,8 @@ &sdmmc0 {
>  	status = "okay";
>  	cd-gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
>  	disable-wp;
> +	vmmc-supply = <&vdd1_3v3>;
> +	vqmmc-supply = <&vdd1_3v3>;
>  };
>  
>  &sdmmc1 {
> @@ -568,6 +570,8 @@ &sdmmc1 {
>  	pinctrl-0 = <&pinctrl_sdmmc1_default>;
>  	no-1-8-v;
>  	non-removable;
> +	vmmc-supply = <&vdd1_3v3>;
> +	vqmmc-supply = <&vdd1_3v3>;
>  	status = "disabled"; /* Conflict with flx4. */
>  };
>
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
index f3cbb675cea4..b19a0956dc97 100644
--- a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
+++ b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
@@ -560,6 +560,8 @@  &sdmmc0 {
 	status = "okay";
 	cd-gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
 	disable-wp;
+	vmmc-supply = <&vdd1_3v3>;
+	vqmmc-supply = <&vdd1_3v3>;
 };
 
 &sdmmc1 {
@@ -568,6 +570,8 @@  &sdmmc1 {
 	pinctrl-0 = <&pinctrl_sdmmc1_default>;
 	no-1-8-v;
 	non-removable;
+	vmmc-supply = <&vdd1_3v3>;
+	vqmmc-supply = <&vdd1_3v3>;
 	status = "disabled"; /* Conflict with flx4. */
 };