[PATCH 04/10] ARM: dts: stm32: update sdmmc slew-rate in stm32mp13 pinctrl

From: Yann Gautier
Date: Wed Jan 12 2022 - 11:32:58 EST


From: Gerald Baeza <gerald.baeza@xxxxxxxxxxx>

SDMMC1/2 CK <= 50 MHz so slew-rate = <1>
A new node sdmmc1-clk-0 is added to manage the new clock pin slew-rate.

Signed-off-by: Gerald Baeza <gerald.baeza@xxxxxxxxxxx>
Signed-off-by: Yann Gautier <yann.gautier@xxxxxxxxxxx>
---
arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
index 069f95f2b628..ebb83c56c350 100644
--- a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
@@ -7,7 +7,7 @@

&pinctrl {
sdmmc1_b4_pins_a: sdmmc1-b4-0 {
- pins1 {
+ pins {
pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
<STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */
<STM32_PINMUX('C', 10, AF12)>, /* SDMMC1_D2 */
@@ -17,12 +17,6 @@
drive-push-pull;
bias-disable;
};
- pins2 {
- pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
- slew-rate = <2>;
- drive-push-pull;
- bias-disable;
- };
};

sdmmc1_b4_od_pins_a: sdmmc1-b4-od-0 {
@@ -36,12 +30,6 @@
bias-disable;
};
pins2 {
- pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
- slew-rate = <2>;
- drive-push-pull;
- bias-disable;
- };
- pins3 {
pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
slew-rate = <1>;
drive-open-drain;
@@ -49,6 +37,15 @@
};
};

+ sdmmc1_clk_pins_a: sdmmc1-clk-0 {
+ pins {
+ pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
+ slew-rate = <1>;
+ drive-push-pull;
+ bias-disable;
+ };
+ };
+
uart4_pins_a: uart4-0 {
pins1 {
pinmux = <STM32_PINMUX('D', 6, AF8)>; /* UART4_TX */
--
2.17.1