[PATCH 1/2] ARM: dts: stm32: add stm32f7 SDIO sleep pins

From: Ben Wolsieffer
Date: Mon Oct 02 2023 - 13:14:16 EST


Add SDIO sleep pin definitions that place the pins in analog mode to
save power.

Signed-off-by: Ben Wolsieffer <ben.wolsieffer@xxxxxxxxxxx>
---
arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi
index 9f65403295ca..26f91ca0d458 100644
--- a/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32f7-pinctrl.dtsi
@@ -253,6 +253,17 @@ pins2 {
};
};

+ sdio_pins_sleep_a: sdio-pins-sleep-a-0 {
+ pins {
+ pinmux = <STM32_PINMUX('C', 8, ANALOG)>, /* SDMMC1 D0 */
+ <STM32_PINMUX('C', 9, ANALOG)>, /* SDMMC1 D1 */
+ <STM32_PINMUX('C', 10, ANALOG)>, /* SDMMC1 D2 */
+ <STM32_PINMUX('C', 11, ANALOG)>, /* SDMMC1 D3 */
+ <STM32_PINMUX('C', 12, ANALOG)>, /* SDMMC1 CLK */
+ <STM32_PINMUX('D', 2, ANALOG)>; /* SDMMC1 CMD */
+ };
+ };
+
sdio_pins_b: sdio-pins-b-0 {
pins {
pinmux = <STM32_PINMUX('G', 9, AF11)>, /* SDMMC2 D0 */
@@ -284,6 +295,17 @@ pins2 {
};
};

+ sdio_pins_sleep_b: sdio-pins-sleep-b-0 {
+ pins {
+ pinmux = <STM32_PINMUX('G', 9, ANALOG)>, /* SDMMC2 D0 */
+ <STM32_PINMUX('G', 10, ANALOG)>, /* SDMMC2 D1 */
+ <STM32_PINMUX('B', 3, ANALOG)>, /* SDMMC2 D2 */
+ <STM32_PINMUX('B', 4, ANALOG)>, /* SDMMC2 D3 */
+ <STM32_PINMUX('D', 6, ANALOG)>, /* SDMMC2 CLK */
+ <STM32_PINMUX('D', 7, ANALOG)>; /* SDMMC2 CMD */
+ };
+ };
+
can1_pins_a: can1-0 {
pins1 {
pinmux = <STM32_PINMUX('A', 12, AF9)>; /* CAN1_TX */
--
2.42.0