Add support for Sensing AR0820 and ISX031 cameras

Makefile

@@ -46,6 +46,7 @@ export CONFIG_VIDEO_AR0234 = m
 # kernel version >= 6.12.15
 export CONFIG_VIDEO_ISX031=m
 export CONFIG_VIDEO_MAX9X=m
+export CONFIG_VIDEO_AR0820=m
 
 obj-y += drivers/media/i2c/
 
@@ -75,6 +76,9 @@ subdir-ccflags-$(CONFIG_INTEL_SKL_INT3472) += \
 subdir-ccflags-$(CONFIG_VIDEO_ISX031) += \
 	-DCONFIG_VIDEO_ISX031
 
+subdir-ccflags-$(CONFIG_VIDEO_AR0820) += \
+    -DCONFIG_VIDEO_AR0820
+
 subdir-ccflags-y += $(subdir-ccflags-m)
 
 all:

drivers/media/i2c/max9x/serdes.c

@@ -1824,13 +1824,16 @@ static int max9x_registered(struct v4l2_subdev *sd)
 						.table = {
 							GPIO_LOOKUP("", 0, "reset",
 								    GPIO_ACTIVE_LOW),
+							GPIO_LOOKUP("", 7, "fsin",
+								    GPIO_ACTIVE_LOW),
 							{}
 						},
 					};
 
 					sensor_gpios.dev_id = dev_id;
 					sensor_gpios.table[0].key = common->gpio_chip.label;
-
+					sensor_gpios.table[1].key = common->gpio_chip.label;
+
 					gpiod_add_lookup_table(&sensor_gpios);
 
 					struct v4l2_subdev *subdev =

drivers/media/platform/intel/ipu-acpi-pdata.c

@@ -638,7 +638,7 @@ static int set_serdes_subdev(struct ipu_isys_subdev_info **serdes_sd,
 		snprintf(serdes_sdinfo[i].suffix, sizeof(serdes_sdinfo[i].suffix), "%c-%d",
 			 SUFFIX_BASE + i, port);
 #if IS_ENABLED(CONFIG_VIDEO_ISX031)
-		serdes_sdinfo[i].ser_phys_addr = 0x40;
+		serdes_sdinfo[i].ser_phys_addr = 0x62;
 		serdes_sdinfo[i].sensor_dt = 0x1e;
 #endif
 	}

drivers/media/platform/intel/ipu-acpi.c

@@ -63,6 +63,10 @@ static const struct ipu_acpi_devices supported_devices[] = {
 	{ "INTC031M", ISX031_NAME, get_sensor_pdata, NULL, 0, TYPE_SERDES, "max9x",
 		ISX031_I2C_ADDRESS, 1600 },	// D3 ISX031 HID
 #endif
+#if IS_ENABLED(CONFIG_VIDEO_AR0820)
+	{ "AR0820", AR0820_NAME, get_sensor_pdata, NULL, 0, TYPE_SERDES, "max9x",
+		AR0820_I2C_ADDRESS, 1600 },  // SENSING AR0820 HID
+#endif
 #endif
 };
 
@@ -88,6 +92,9 @@ static const struct acpi_device_id ipu_acpi_match[] = {
 #if IS_ENABLED(CONFIG_VIDEO_ISX031)
 	{ "INTC1031", 0 },	// ISX031 HID
 	{ "INTC031M", 0 },	// D3CMC68N-115-084 ISX031 HID
+#endif
+#if IS_ENABLED(CONFIG_VIDEO_AR0820)
+	{ "AR0820", 0 },    // AR0820 HID
 #endif
 	{},
 };

include/media/i2c/ar0820.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2014 - 2022 Intel Corporation */
+
+#ifndef __AR0820_H
+#define __AR0820_H
+
+#include <linux/types.h>
+
+#define AR0820_NAME "ar0820"
+
+#define AR0820_I2C_ADDRESS 0x6D	// Sensing ISP I2C Address is 0xDA >> 1
+
+struct ar0820_platform_data {
+        unsigned int port;
+        unsigned int lanes;
+        uint32_t i2c_slave_address;
+        int irq_pin;
+        unsigned int irq_pin_flags;
+        char irq_pin_name[16];
+        char suffix;
+        int gpios[4];
+};
+
+#endif /* __AR0820_H  */

include/media/serdes-pdata.h

@@ -8,6 +8,10 @@
 #include <media/i2c/isx031.h>
 #endif
 
+#if IS_ENABLED(CONFIG_VIDEO_AR0820)
+#include <media/i2c/ar0820.h>
+#endif
+
 struct serdes_subdev_info {
 	struct i2c_board_info board_info;
 	int i2c_adapter_id;