ARM: DT: stm32f7: add qspi pin contol node

It also removes the qspi pin configuration done during the
board initialization.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>

arch/arm/dts/stm32f746-disco.dts

@@ -93,6 +93,7 @@
 };
 
 &qspi {
+	pinctrl-0 = <&qspi_pins>;
 	status = "okay";
 
 	qflash0: n25q128a {

arch/arm/dts/stm32f746.dtsi

@@ -131,6 +131,17 @@
 					slew-rate = <2>;
 				};
 			};
+			qspi_pins: qspi@0{
+				pins {
+					pinmux = <STM32F746_PB2_FUNC_QUADSPI_CLK>,
+						 <STM32F746_PB6_FUNC_QUADSPI_BK1_NCS>,
+						 <STM32F746_PD11_FUNC_QUADSPI_BK1_IO0>,
+						 <STM32F746_PD12_FUNC_QUADSPI_BK1_IO1>,
+						 <STM32F746_PD13_FUNC_QUADSPI_BK1_IO3>,
+						 <STM32F746_PE2_FUNC_QUADSPI_BK1_IO2>;
+					slew-rate = <2>;
+				};
+			};
 		};
 	};
 };

board/st/stm32f746-disco/stm32f746-disco.c

@@ -262,55 +262,12 @@ static int stmmac_setup(void)
 #endif
 
 #ifdef CONFIG_STM32_QSPI
-const struct stm32_gpio_ctl gpio_ctl_qspi_9 = {
-	.mode = STM32_GPIO_MODE_AF,
-	.otype = STM32_GPIO_OTYPE_PP,
-	.speed = STM32_GPIO_SPEED_100M,
-	.pupd = STM32_GPIO_PUPD_NO,
-	.af = STM32_GPIO_AF9
-};
-
-const struct stm32_gpio_ctl gpio_ctl_qspi_10 = {
-	.mode = STM32_GPIO_MODE_AF,
-	.otype = STM32_GPIO_OTYPE_PP,
-	.speed = STM32_GPIO_SPEED_100M,
-	.pupd = STM32_GPIO_PUPD_NO,
-	.af = STM32_GPIO_AF10
-};
-
-static const struct stm32_gpio_dsc qspi_af9_gpio[] = {
-	{STM32_GPIO_PORT_B, STM32_GPIO_PIN_2},	/* QUADSPI_CLK */
-	{STM32_GPIO_PORT_D, STM32_GPIO_PIN_11},	/* QUADSPI_BK1_IO0 */
-	{STM32_GPIO_PORT_D, STM32_GPIO_PIN_12},	/* QUADSPI_BK1_IO1 */
-	{STM32_GPIO_PORT_D, STM32_GPIO_PIN_13},	/* QUADSPI_BK1_IO3 */
-	{STM32_GPIO_PORT_E, STM32_GPIO_PIN_2},	/* QUADSPI_BK1_IO2 */
-};
-
-static const struct stm32_gpio_dsc qspi_af10_gpio[] = {
-	{STM32_GPIO_PORT_B, STM32_GPIO_PIN_6},	/* QUADSPI_BK1_NCS */
-};
 
 static int qspi_setup(void)
 {
-	int res = 0;
-	int i;
-
 	clock_setup(GPIO_B_CLOCK_CFG);
 	clock_setup(GPIO_D_CLOCK_CFG);
 	clock_setup(GPIO_E_CLOCK_CFG);
-
-	for (i = 0; i < ARRAY_SIZE(qspi_af9_gpio); i++) {
-		res = stm32_gpio_config(&qspi_af9_gpio[i], &gpio_ctl_qspi_9);
-		if (res)
-			return res;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(qspi_af10_gpio); i++) {
-		res = stm32_gpio_config(&qspi_af10_gpio[i], &gpio_ctl_qspi_10);
-		if (res)
-			return res;
-	}
-
 	return 0;
 }
 #endif