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ARM: dts: stm32: add board pin documentation stm32mp135f-dk

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Relate the devices defined in the device tree to the SoC ports and pins
and labels available on the board.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20260420204647.1713944-2-u.kleine-koenig@baylibre.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Uwe Kleine-König
2026-04-20 22:46:48 +02:00
committed by Alexandre Torgue
parent 7ebbcbbee7
commit 9c2be60e82
1 changed files with 24 additions and 4 deletions
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28
arch/arm/boot/dts/st/stm32mp135f-dk.dts
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@@ -64,6 +64,7 @@ gpio-keys {
compatible = "gpio-keys";
button-user {
/* GPIO on PA13 "User button 2 (B2)" */
label = "User-PA13";
linux,code = <BTN_1>;
gpios = <&gpioa 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
@@ -74,6 +75,7 @@ leds {
compatible = "gpio-leds";
led_blue: led-blue {
/* GPIO on PA14 "User LED (LD3)" */
function = LED_FUNCTION_HEARTBEAT;
color = <LED_COLOR_ID_BLUE>;
gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
@@ -82,6 +84,7 @@ led_blue: led-blue {
};
led-red {
/* GPIO on PA13 "User LED (LD4)" */
function = LED_FUNCTION_STATUS;
color = <LED_COLOR_ID_RED>;
gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
@@ -252,6 +255,7 @@ phy0_eth1: ethernet-phy@0 {
&i2c1 {
pinctrl-names = "default", "sleep";
/* SDA on PE8 = CN8.27, SCL on PD12 = CN8.28 */
pinctrl-0 = <&i2c1_pins_a>;
pinctrl-1 = <&i2c1_sleep_pins_a>;
i2c-scl-rising-time-ns = <96>;
@@ -486,7 +490,10 @@ counter {
status = "okay";
};
pwm {
/* PWM output on pin 7 of the expansion connector (CN8.7) using TIM3_CH4 func */
/*
* CH4 on PB1 = CN8.7;
* CH3 on PB0 = CN8.10 is possible (conflicting with usart1)
*/
pinctrl-0 = <&pwm3_pins_a>;
pinctrl-1 = <&pwm3_sleep_pins_a>;
pinctrl-names = "default", "sleep";
@@ -505,7 +512,10 @@ counter {
status = "okay";
};
pwm {
/* PWM output on pin 31 of the expansion connector (CN8.31) using TIM4_CH2 func */
/*
* CH2 on PD13 = CN8.31;
* CH1 on PD12 = CN8.28 is possible (conflicting with &i2c1)
*/
pinctrl-0 = <&pwm4_pins_a>;
pinctrl-1 = <&pwm4_sleep_pins_a>;
pinctrl-names = "default", "sleep";
@@ -524,7 +534,12 @@ counter {
status = "okay";
};
pwm {
/* PWM output on pin 32 of the expansion connector (CN8.32) using TIM8_CH3 func */
/*
* CH3 on PE5 = CN8.32
* CH1N on PA7 = CN8.36 is possible (conflicting with &usart1)
* CH2N on PB0 = CN8.10 is possible (conflicting with &usart1)
* CH3N on PB1 = CN8.7 is possible (conflicting with &timers3)
*/
pinctrl-0 = <&pwm8_pins_a>;
pinctrl-1 = <&pwm8_sleep_pins_a>;
pinctrl-names = "default", "sleep";
@@ -541,7 +556,7 @@ counter {
status = "okay";
};
pwm {
/* PWM output on pin 33 of the expansion connector (CN8.33) using TIM14_CH1 func */
/* CH1 on PF9 = CN8.33 (alternatively on PA7 = CN8.36 (conflicting with &usart1)) */
pinctrl-0 = <&pwm14_pins_a>;
pinctrl-1 = <&pwm14_sleep_pins_a>;
pinctrl-names = "default", "sleep";
@@ -553,6 +568,7 @@ timer@13 {
};
&uart4 {
/* Accessible via micro USB ST-LINK USB (CN10) */
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&uart4_pins_a>;
pinctrl-1 = <&uart4_sleep_pins_a>;
@@ -564,6 +580,7 @@ &uart4 {
&uart8 {
pinctrl-names = "default", "sleep", "idle";
/* TX on PE1 = CN8.37, RX on PF9 = CN8.33 */
pinctrl-0 = <&uart8_pins_a>;
pinctrl-1 = <&uart8_sleep_pins_a>;
pinctrl-2 = <&uart8_idle_pins_a>;
@@ -574,6 +591,7 @@ &uart8 {
&usart1 {
pinctrl-names = "default", "sleep", "idle";
/* TX on PC0 = CN8.8, RX on PB0 = CN8.10, RTS on PC2 = CN8.11, CTS on PA7 = CN8.36 */
pinctrl-0 = <&usart1_pins_a>;
pinctrl-1 = <&usart1_sleep_pins_a>;
pinctrl-2 = <&usart1_idle_pins_a>;
@@ -584,6 +602,7 @@ &usart1 {
/* Bluetooth */
&usart2 {
pinctrl-names = "default", "sleep", "idle";
/* TX on PH12, RX on PD15, RTS on PD4, CTS on PE11 */
pinctrl-0 = <&usart2_pins_a>;
pinctrl-1 = <&usart2_sleep_pins_a>;
pinctrl-2 = <&usart2_idle_pins_a>;
@@ -613,6 +632,7 @@ hub@1 {
};
&usbotg_hs {
/* USB Type-C DRP (CN7) */
phys = <&usbphyc_port1 0>;
phy-names = "usb2-phy";
usb-role-switch;