ARM: dts: stm32: add usart2, usart3 and uart7 pins in stm32mp15-pinctrl

Adds usart2_pins_c, usart3_pins_b, usart3_pins_c and uart7_pins_c pins
configurations in stm32mp15-pinctrl.
- usart2_pins_c pins are connected to Bluetooth chip on dk2 board.
- usart3_pins_b pins are connected to GPIO expansion connector on evx board.
- usart3_pins_c pins are connected to GPIO expansion connector on dkx board.
- uart7_pins_c pins are connected to Arduino Uno connector on dkx board.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index e63d85c..8d7cb32 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1657,6 +1657,36 @@
                };
        };
 
+       uart7_pins_c: uart7-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('E', 8, AF7)>; /* UART7_TX */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
+                       bias-disable;
+               };
+       };
+
+       uart7_idle_pins_c: uart7-idle-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('E', 8, ANALOG)>; /* UART7_TX */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('E', 7, AF7)>; /* UART7_RX */
+                       bias-disable;
+               };
+       };
+
+       uart7_sleep_pins_c: uart7-sleep-2 {
+               pins {
+                       pinmux = <STM32_PINMUX('E', 8, ANALOG)>, /* UART7_TX */
+                                <STM32_PINMUX('E', 7, ANALOG)>; /* UART7_RX */
+               };
+       };
+
        uart8_pins_a: uart8-0 {
                pins1 {
                        pinmux = <STM32_PINMUX('E', 1, AF8)>; /* UART8_TX */
@@ -1718,6 +1748,42 @@
                };
        };
 
+       usart2_pins_c: usart2-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('D', 5, AF7)>, /* USART2_TX */
+                                <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <3>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('D', 6, AF7)>, /* USART2_RX */
+                                <STM32_PINMUX('D', 3, AF7)>; /* USART2_CTS_NSS */
+                       bias-disable;
+               };
+       };
+
+       usart2_idle_pins_c: usart2-idle-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('D', 5, ANALOG)>, /* USART2_TX */
+                                <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
+                                <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('D', 6, AF7)>; /* USART2_RX */
+                       bias-disable;
+               };
+       };
+
+       usart2_sleep_pins_c: usart2-sleep-2 {
+               pins {
+                       pinmux = <STM32_PINMUX('D', 5, ANALOG)>, /* USART2_TX */
+                                <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */
+                                <STM32_PINMUX('D', 6, ANALOG)>, /* USART2_RX */
+                                <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */
+               };
+       };
+
        usart3_pins_a: usart3-0 {
                pins1 {
                        pinmux = <STM32_PINMUX('B', 10, AF7)>; /* USART3_TX */
@@ -1731,6 +1797,78 @@
                };
        };
 
+       usart3_pins_b: usart3-1 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
+                                <STM32_PINMUX('I', 10, AF8)>; /* USART3_CTS_NSS */
+                       bias-disable;
+               };
+       };
+
+       usart3_idle_pins_b: usart3-idle-1 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
+                                <STM32_PINMUX('I', 10, ANALOG)>; /* USART3_CTS_NSS */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
+                       bias-disable;
+               };
+       };
+
+       usart3_sleep_pins_b: usart3-sleep-1 {
+               pins {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
+                                <STM32_PINMUX('I', 10, ANALOG)>, /* USART3_CTS_NSS */
+                                <STM32_PINMUX('B', 12, ANALOG)>; /* USART3_RX */
+               };
+       };
+
+       usart3_pins_c: usart3-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, AF7)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 12, AF8)>, /* USART3_RX */
+                                <STM32_PINMUX('B', 13, AF7)>; /* USART3_CTS_NSS */
+                       bias-disable;
+               };
+       };
+
+       usart3_idle_pins_c: usart3-idle-2 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
+                                <STM32_PINMUX('B', 13, ANALOG)>; /* USART3_CTS_NSS */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */
+                       bias-disable;
+               };
+       };
+
+       usart3_sleep_pins_c: usart3-sleep-2 {
+               pins {
+                       pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */
+                                <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */
+                                <STM32_PINMUX('B', 13, ANALOG)>, /* USART3_CTS_NSS */
+                                <STM32_PINMUX('B', 12, ANALOG)>; /* USART3_RX */
+               };
+       };
+
        usbotg_hs_pins_a: usbotg-hs-0 {
                pins {
                        pinmux = <STM32_PINMUX('A', 10, ANALOG)>; /* OTG_ID */