shields: st_b_cams_imx_mb1854: introduce csi_gpio1_hogs

The "gpio-hog;" devicetree property configuring the "power enable" pin at
boot was not working, due to being placed on a gpio-nexus. This is not
supported and lead the gpio-hog inactive. Instead, let the board specify
their CSI_IO0 and CSI_IO1 pin as GPIO hogs with status = "disabled",
letting shields enable them and set the direction as needed.

Signed-off-by: Josuah Demangeon <[email protected]>

Author: josuah

boards/shields/st_b_cams_imx_mb1854/Kconfig.defconfig

@@ -14,4 +14,7 @@ config VIDEO_STM32_DCMIPP_SENSOR_WIDTH
 config VIDEO_STM32_DCMIPP_SENSOR_HEIGHT
 	default 1944
 
+config GPIO_HOGS
+	default y
+
 endif # VIDEO_STM32_DCMIPP

boards/shields/st_b_cams_imx_mb1854/st_b_cams_imx_mb1854.overlay

@@ -47,11 +47,8 @@
 	};
 };
 
-&csi_connector {
-	/* Power the camera module */
-	en-module-gpios {
-		gpio-hog;
-		gpios = <CSI_IO1 GPIO_ACTIVE_HIGH>;
-		output-high;
-	};
+/* Power the camera module */
+&csi_gpio1_hog {
+	status = "okay";
+	output-high;
 };

boards/st/nucleo_n657x0_q/nucleo_n657x0_q_common.dtsi

@@ -66,6 +66,22 @@
 	};
 };
 
+&gpioo {
+	csi_gpio0_hog: csi-gpio0-hog {
+		gpio-hog;
+		gpios = <5 GPIO_ACTIVE_HIGH>;
+		status = "disabled";
+	};
+};
+
+&gpioa {
+	csi_gpio1_hog: csi-gpio1-hog {
+		gpio-hog;
+		gpios = <0 GPIO_ACTIVE_HIGH>;
+		status = "disabled";
+	};
+};
+
 &clk_hse {
 	hse-div2;
 	clock-frequency = <DT_FREQ_M(48)>;

boards/st/stm32n6570_dk/stm32n6570_dk_common.dtsi

@@ -86,6 +86,22 @@
 	};
 };
 
+&gpioc {
+	csi_gpio0_hog: csi-gpio0-hog {
+		gpio-hog;
+		gpios = <8 GPIO_ACTIVE_HIGH>;
+		status = "disabled";
+	};
+};
+
+&gpiod {
+	csi_gpio1_hog: csi-gpio1-hog {
+		gpio-hog;
+		gpios = <2 GPIO_ACTIVE_HIGH>;
+		status = "disabled";
+	};
+};
+
 &i2c2 {
 	status = "okay";
 	clocks = <&rcc STM32_CLOCK(APB1, 22)>,