media: camera: Build tegra-camera as OOT module

Port camera drivers below from /kenrel/nvidia to
/kernel/nvidia-oot as OOT modules:
- Fusa-capture driver
- Tegra V4L2 framework driver
- vi/csi driver
- tegra camera platform driver

Change-Id: I390af27096425bb11e0934201dd1a90f001bb3fa
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2780698
Reviewed-by: FNU Raunak <fraunak@nvidia.com>
Reviewed-by: Ankur Pawar <ankurp@nvidia.com>
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

include/soc/tegra/tegra-i2c-rtcpu.h

@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2017-2022 NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef _LINUX_TEGRA_I2C_RTCPU_H
+#define _LINUX_TEGRA_I2C_RTCPU_H
+
+#include <linux/i2c.h>
+#include <media/camera_common.h>
+
+struct tegra_i2c_rtcpu_sensor;
+
+struct tegra_i2c_rtcpu_config {
+	unsigned int reg_bytes;
+};
+
+/*
+ * Sensor registration
+ */
+
+#ifdef CONFIG_I2C_TEGRA_CAMRTC
+
+/* Find an I2C multi device, and register a sensor. */
+struct tegra_i2c_rtcpu_sensor *tegra_i2c_rtcpu_register_sensor(
+	struct i2c_client *client,
+	const struct tegra_i2c_rtcpu_config *config);
+
+#else
+
+static inline struct tegra_i2c_rtcpu_sensor *tegra_i2c_rtcpu_register_sensor(
+	struct i2c_client *client,
+	const struct tegra_i2c_rtcpu_config *config)
+{
+	return NULL;
+}
+
+#endif
+
+/*
+ * I2C transfer
+ */
+
+#ifdef CONFIG_I2C_TEGRA_CAMRTC
+
+/* Start or stop buffering of I2C transfer requests */
+int tegra_i2c_rtcpu_aggregate(
+	struct tegra_i2c_rtcpu_sensor *sensor,
+	bool start);
+
+/* Setting frame ID is available after aggregation started */
+int tegra_i2c_rtcpu_set_frame_id(
+	struct tegra_i2c_rtcpu_sensor *sensor,
+	int frame_id);
+
+/* Read one or more bytes from a sensor */
+int tegra_i2c_rtcpu_read_reg8(
+	struct tegra_i2c_rtcpu_sensor *sensor,
+	unsigned int addr,
+	u8 *data,
+	unsigned int count);
+
+/* Write one or more bytes to a sensor */
+int tegra_i2c_rtcpu_write_reg8(
+	struct tegra_i2c_rtcpu_sensor *sensor,
+	unsigned int addr,
+	const u8 *data,
+	unsigned int count);
+
+/* Write a table */
+int tegra_i2c_rtcpu_write_table_8(
+	struct tegra_i2c_rtcpu_sensor *sensor,
+	const struct reg_8 table[],
+	const struct reg_8 override_list[],
+	int num_override_regs, u16 wait_ms_addr, u16 end_addr);
+
+#else
+
+#define tegra_i2c_rtcpu_aggregate(...) (0)
+#define tegra_i2c_rtcpu_set_frame_id(...) (0)
+#define tegra_i2c_rtcpu_read_reg8(...) (-ENODEV)
+#define tegra_i2c_rtcpu_write_reg8(...) (-ENODEV)
+#define tegra_i2c_rtcpu_write_table_8(...) (-ENODEV)
+
+#endif
+
+#endif /* _LINUX_TEGRA_I2C_RTCPU_H */