[PATCH 2/2] media: i2c: Add GC08A3 image sensor driver

Zhi Mao
2023-11-23T11:52:54Z

Add a V4L2 sub-device driver for Galaxycore GC08A3 image sensor.

Signed-off-by: Zhi Mao <zhi.mao@mediatek.com>
---
drivers/media/i2c/Kconfig | 14 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/gc08a3.c | 2046 ++++++++++++++++++++++++++++++++++++
3 files changed, 2061 insertions(+)
create mode 100644 drivers/media/i2c/gc08a3.c

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 59ee0ca2c978..2e37be537690 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -1451,6 +1451,20 @@ config VIDEO_THS7303
To compile this driver as a module, choose M here: the
module will be called ths7303.

+config VIDEO_GC08A3
+ tristate "GalaxyCore gc08a3 sensor support"
+ depends on GPIOLIB && I2C && VIDEO_DEV
+ select V4L2_FWNODE
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select REGMAP_I2C
+ help
+ This is a Video4Linux2 sensor driver for the GalaxyCore gc08a3
+ camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gc08a3.
+
endmenu

#
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index f5010f80a21f..ec40dbd75e7a 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_VIDEO_DW9719) += dw9719.o
obj-$(CONFIG_VIDEO_DW9768) += dw9768.o
obj-$(CONFIG_VIDEO_DW9807_VCM) += dw9807-vcm.o
obj-$(CONFIG_VIDEO_ET8EK8) += et8ek8/
+obj-$(CONFIG_VIDEO_GC08A3) += gc08a3.o
obj-$(CONFIG_VIDEO_HI556) += hi556.o
obj-$(CONFIG_VIDEO_HI846) += hi846.o
obj-$(CONFIG_VIDEO_HI847) += hi847.o
diff --git a/drivers/media/i2c/gc08a3.c b/drivers/media/i2c/gc08a3.c
new file mode 100644
index 000000000000..d3cf62b65c2e
--- /dev/null
+++ b/drivers/media/i2c/gc08a3.c
@@ -0,0 +1,2046 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * gc08a3.c - gc08a3 sensor driver
+ *
+ * Copyright 2023 Mediatek
+ *
+ * Zhi Mao <zhi.mao@mediatek.com>
+ */
+
+#include <asm/unaligned.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-subdev.h>
+
+//=========================================
+#define GC08A3_REG_VALUE_08BIT 1
+#define GC08A3_REG_VALUE_16BIT 2
+#define GC08A3_REG_VALUE_24BIT 3
+
+#define GC08A3_REG_CHIP_ID 0x03f0
+#define GC08A3_CHIP_ID 0x08a3
+
+#define GC08A3_NATIVE_WIDTH 3264
+#define GC08A3_NATIVE_HEIGHT 2448
+
+#define GC08A3_REG_TEST_PATTERN_EN 0x008c
+#define GC08A3_REG_TEST_PATTERN_IDX 0x008d
+#define GC08A3_TEST_PATTERN_EN 0x01
+
+#define GC08A3_STRAEMING_REG 0x0100
+
+#define GC08A3_SCLK 280000000LL
+
+#define GC08A3_DEFAULT_CLK_FREQ 24000000
+#define GC08A3_FPS 30
+#define GC08A3_MBUS_CODE MEDIA_BUS_FMT_SRGGB10_1X10
+#define GC08A3_DATA_LANES 4
+
+//for 1920*1080
+#define GC08A3_LINK_FREQ_207MHZ 207000000ULL
+//for 3264*2448
+#define GC08A3_LINK_FREQ_336MHZ 336000000ULL
+
+#define GC08A3_RGB_DEPTH 10
+
+//frame length
+#define GC08A3_FL_REG 0x0340
+#define GC08A3_VTS_30FPS 2548
+#define GC08A3_VTS_30FPS_MIN 2548
+#define GC08A3_VTS_60FPS 1276
+#define GC08A3_VTS_60FPS_MIN 1276
+#define GC08A3_VTS_MAX 0xfff0
+#define GC08A3_FL_MARGIN 48
+
+// line length
+#define GC08A3_LL_REG 0x0342
+#define GC08A3_HTS_30FPS 3640
+#define GC08A3_HTS_60FPS 3640
+
+#define GC08A3_EXP_REG 0x0202
+#define GC08A3_EXP_MARGIN 16
+#define GC08A3_EXP_MIN 4
+#define GC08A3_EXP_STEP 1
+
+#define GC08A3_FLIP_REG 0x0101
+#define GC08A3_FLIP_H_MASK 0x1
+#define GC08A3_FLIP_V_MASK 0x2
+
+#define GC08A3_AGAIN_REG 0x0204
+#define GC08A3_AGAIN_MIN 1024
+#define GC08A3_AGAIN_MAX (1024 * 16)
+#define GC08A3_AGAIN_STEP 1
+
+#define GC08A3_DGAIN_REG 0x020e
+#define GC08A3_DGAIN_MIN 1024
+#define GC08A3_DGAIN_MAX 1024
+#define GC08A3_DGAIN_STEP 1
+//============================================================
+
+//============================================================
+static const char *const gc08a3_test_pattern_menu[] = {
+ "No Pattern", "Solid Black", "Solid White", "Solid Red",
+ "Solid Green", "Solid Blue", "Solid Yellow", "Colour Bar",
+};
+
+enum {
+ GC08A3_LINK_FREQ_336MHZ_CFG,
+ GC08A3_LINK_FREQ_207MHZ_CFG,
+};
+
+static const s64 link_freq_menu_items[] = {
+ GC08A3_LINK_FREQ_336MHZ,
+ GC08A3_LINK_FREQ_207MHZ,
+};
+
+static const char *const gc08a3_supply_name[] = {
+ "avdd",
+ "dvdd",
+ "dovdd",
+};
+
+#define GC08A3_NUM_SUPPLIES ARRAY_SIZE(gc08a3_supply_name)
+
+struct gc08a3 {
+ struct device *dev;
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+ struct v4l2_mbus_framefmt fmt;
+ struct i2c_client *client;
+
+ struct v4l2_rect crop;
+
+ struct clk *xclk;
+ struct regulator_bulk_data supplies[GC08A3_NUM_SUPPLIES];
+ struct gpio_desc *enable_gpio;
+
+ struct regmap *regmap;
+
+ struct v4l2_ctrl_handler ctrls;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hblank;
+
+ /*
+ * Serialize control access, get/set format, get selection
+ * and start streaming.
+ */
+ struct mutex mutex;
+
+ bool streaming;
+
+ /* Current mode */
+ const struct gc08a3_mode *cur_mode;
+};
+
+struct reg_8 {
+ u16 address;
+ u8 val;
+};
+
+struct gc08a3_reg_list {
+ u32 num_of_regs;
+ const struct reg_8 *regs;
+};
+
+struct gc08a3_link_freq_config {
+ const struct gc08a3_reg_list reg_list;
+};
+
+enum {
+ GC08A3_TABLE_WAIT_MS = 0,
+ GC08A3_TABLE_END,
+};
+
+/*From gc08a3_mode_tbls.h*/
+static const struct reg_8 mode_3264x2448[] = {
+ /*system*/
+ { 0x031c, 0x60 },
+ { 0x0337, 0x04 },
+ { 0x0335, 0x51 },
+ { 0x0336, 0x70 },
+ { 0x0383, 0xbb },
+ { 0x031a, 0x00 },
+ { 0x0321, 0x10 },
+ { 0x0327, 0x03 },
+ { 0x0325, 0x40 },
+ { 0x0326, 0x23 },
+ { 0x0314, 0x11 },
+ { 0x0315, 0xd6 },
+ { 0x0316, 0x01 },
+ { 0x0334, 0x40 },
+ { 0x0324, 0x42 },
+ { 0x031c, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x06 },
+ { 0x0346, 0x00 },
+ { 0x0347, 0x04 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xd0 }, //3280
+ { 0x034a, 0x09 },
+ { 0x034b, 0x9c }, //2460
+ { 0x0202, 0x09 },
+ { 0x0203, 0x04 }, //Exp
+ { 0x0340, 0x09 },
+ { 0x0341, 0xf4 }, //FL
+ { 0x0342, 0x07 },
+ { 0x0343, 0x1c }, //LineLength
+
+ { 0x0226, 0x00 }, //min vb[15:8]
+ { 0x0227, 0x28 }, //min vb[7:0]
+ { 0x0e38, 0x49 },
+ { 0x0210, 0x13 },
+ { 0x0218, 0x00 },
+ { 0x0241, 0x88 },
+ { 0x0392, 0x60 },
+
+ /*ISP*/
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 }, //CISCTL_rst
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 },
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x00a2, 0x00 },
+ { 0x00a3, 0x00 },
+ { 0x00ab, 0x00 },
+ { 0x00ac, 0x00 },
+ { 0x05a0, 0x82 },
+ { 0x05ac, 0x00 },
+ { 0x05ad, 0x01 },
+ { 0x05ae, 0x00 },
+ { 0x0800, 0x0a },
+ { 0x0801, 0x14 },
+ { 0x0802, 0x28 },
+ { 0x0803, 0x34 },
+ { 0x0804, 0x0e },
+ { 0x0805, 0x33 },
+ { 0x0806, 0x03 },
+ { 0x0807, 0x8a },
+ { 0x0808, 0x50 },
+ { 0x0809, 0x00 },
+ { 0x080a, 0x34 },
+ { 0x080b, 0x03 },
+ { 0x080c, 0x26 },
+ { 0x080d, 0x03 },
+ { 0x080e, 0x18 },
+ { 0x080f, 0x03 },
+ { 0x0810, 0x10 },
+ { 0x0811, 0x03 },
+ { 0x0812, 0x00 },
+ { 0x0813, 0x00 },
+ { 0x0814, 0x01 },
+ { 0x0815, 0x00 },
+ { 0x0816, 0x01 },
+ { 0x0817, 0x00 },
+ { 0x0818, 0x00 },
+ { 0x0819, 0x0a },
+ { 0x081a, 0x01 },
+ { 0x081b, 0x6c },
+ { 0x081c, 0x00 },
+ { 0x081d, 0x0b },
+ { 0x081e, 0x02 },
+ { 0x081f, 0x00 },
+ { 0x0820, 0x00 },
+ { 0x0821, 0x0c },
+ { 0x0822, 0x02 },
+ { 0x0823, 0xd9 },
+ { 0x0824, 0x00 },
+ { 0x0825, 0x0d },
+ { 0x0826, 0x03 },
+ { 0x0827, 0xf0 },
+ { 0x0828, 0x00 },
+ { 0x0829, 0x0e },
+ { 0x082a, 0x05 },
+ { 0x082b, 0x94 },
+ { 0x082c, 0x09 },
+ { 0x082d, 0x6e },
+ { 0x082e, 0x07 },
+ { 0x082f, 0xe6 },
+ { 0x0830, 0x10 },
+ { 0x0831, 0x0e },
+ { 0x0832, 0x0b },
+ { 0x0833, 0x2c },
+ { 0x0834, 0x14 },
+ { 0x0835, 0xae },
+ { 0x0836, 0x0f },
+ { 0x0837, 0xc4 },
+ { 0x0838, 0x18 },
+ { 0x0839, 0x0e },
+ { 0x05ac, 0x01 },
+ { 0x059a, 0x00 },
+ { 0x059b, 0x00 },
+ { 0x059c, 0x01 },
+ { 0x0598, 0x00 },
+ { 0x0597, 0x14 },
+ { 0x05ab, 0x09 },
+ { 0x05a4, 0x02 },
+ { 0x05a3, 0x05 },
+ { 0x05a0, 0xc2 },
+ { 0x0207, 0xc4 },
+
+ /*GAIN*/
+ { 0x0204, 0x04 },
+ { 0x0205, 0x00 },
+ { 0x0050, 0x5c },
+ { 0x0051, 0x44 },
+
+ /*out window*/
+ { 0x009a, 0x66 },
+ { 0x0351, 0x00 },
+ { 0x0352, 0x06 }, //out_win_y1
+ { 0x0353, 0x00 },
+ { 0x0354, 0x08 }, //out_win_x1
+ { 0x034c, 0x0c },
+ { 0x034d, 0xc0 }, //3264
+ { 0x034e, 0x09 },
+ { 0x034f, 0x90 }, //2448
+
+ /*MIPI*/
+ { 0x0114, 0x03 }, //0:1lane 1:2lane 3:4lane
+ { 0x0180, 0x65 }, //[3:0]dphy_mipi_diff
+ { 0x0181, 0xf0 },
+ { 0x0185, 0x01 },
+ { 0x0115, 0x30 },
+ { 0x011b, 0x12 },
+ { 0x011c, 0x12 },
+ { 0x0121, 0x06 }, //T_LPX
+ { 0x0122, 0x06 }, //T_CLK_HS_PREPARE
+ { 0x0123, 0x15 }, //T_CLK_zero
+ { 0x0124, 0x01 }, //T_CLK_PRE
+ { 0x0125, 0x0b }, //T_CLK_POST
+ { 0x0126, 0x08 }, //T_CLK_TRAIL
+ { 0x0129, 0x06 }, //T_HS_PREPARE
+ { 0x012a, 0x08 }, //T_HS_Zero
+ { 0x012b, 0x08 }, //T_HS_TRAIL
+
+ { 0x0a73, 0x60 },
+ { 0x0a70, 0x11 },
+ { 0x0313, 0x80 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0a70, 0x00 },
+ { 0x00a4, 0x80 },
+ { 0x0316, 0x01 },
+ { 0x0a67, 0x00 },
+ { 0x0084, 0x10 },
+ { 0x0102, 0x09 },
+
+ { GC08A3_TABLE_END, 0x00 }
+};
+
+static const struct reg_8 mode_1920x1080[] = {
+ /*system*/
+ { 0x031c, 0x60 },
+ { 0x0337, 0x04 },
+ { 0x0335, 0x51 },
+ { 0x0336, 0x45 },
+ { 0x0383, 0x8b },
+ { 0x031a, 0x00 },
+ { 0x0321, 0x10 },
+ { 0x0327, 0x03 },
+ { 0x0325, 0x40 },
+ { 0x0326, 0x23 },
+ { 0x0314, 0x11 },
+ { 0x0315, 0xd6 },
+ { 0x0316, 0x01 },
+ { 0x0334, 0x40 },
+ { 0x0324, 0x42 },
+ { 0x031c, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x0344, 0x02 },
+ { 0x0345, 0xa6 },
+ { 0x0346, 0x02 },
+ { 0x0347, 0xb0 },
+ { 0x0348, 0x07 },
+ { 0x0349, 0x90 }, //1936
+ { 0x034a, 0x04 },
+ { 0x034b, 0x44 }, //1092
+ { 0x0202, 0x03 },
+ { 0x0203, 0x00 }, //Exp
+ { 0x0340, 0x04 },
+ { 0x0341, 0xfc }, //FL
+ { 0x0342, 0x07 },
+ { 0x0343, 0x1c }, //LineLength
+
+ { 0x0226, 0x00 }, //min vb[15:8]
+ { 0x0227, 0x88 }, //min vb[7:0]
+ { 0x0e38, 0x49 },
+ { 0x0210, 0x13 },
+ { 0x0218, 0x00 },
+ { 0x0241, 0x88 },
+ { 0x0392, 0x60 },
+
+ /*ISP*/
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 }, //CISCTL_rst
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 },
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x00a2, 0xac },
+ { 0x00a3, 0x02 },
+ { 0x00ab, 0xa0 },
+ { 0x00ac, 0x02 },
+ { 0x05a0, 0x82 },
+ { 0x05ac, 0x00 },
+ { 0x05ad, 0x01 },
+ { 0x05ae, 0x00 },
+ { 0x0800, 0x0a },
+ { 0x0801, 0x14 },
+ { 0x0802, 0x28 },
+ { 0x0803, 0x34 },
+ { 0x0804, 0x0e },
+ { 0x0805, 0x33 },
+ { 0x0806, 0x03 },
+ { 0x0807, 0x8a },
+ { 0x0808, 0x50 },
+ { 0x0809, 0x00 },
+ { 0x080a, 0x34 },
+ { 0x080b, 0x03 },
+ { 0x080c, 0x26 },
+ { 0x080d, 0x03 },
+ { 0x080e, 0x18 },
+ { 0x080f, 0x03 },
+ { 0x0810, 0x10 },
+ { 0x0811, 0x03 },
+ { 0x0812, 0x00 },
+ { 0x0813, 0x00 },
+ { 0x0814, 0x01 },
+ { 0x0815, 0x00 },
+ { 0x0816, 0x01 },
+ { 0x0817, 0x00 },
+ { 0x0818, 0x00 },
+ { 0x0819, 0x0a },
+ { 0x081a, 0x01 },
+ { 0x081b, 0x6c },
+ { 0x081c, 0x00 },
+ { 0x081d, 0x0b },
+ { 0x081e, 0x02 },
+ { 0x081f, 0x00 },
+ { 0x0820, 0x00 },
+ { 0x0821, 0x0c },
+ { 0x0822, 0x02 },
+ { 0x0823, 0xd9 },
+ { 0x0824, 0x00 },
+ { 0x0825, 0x0d },
+ { 0x0826, 0x03 },
+ { 0x0827, 0xf0 },
+ { 0x0828, 0x00 },
+ { 0x0829, 0x0e },
+ { 0x082a, 0x05 },
+ { 0x082b, 0x94 },
+ { 0x082c, 0x09 },
+ { 0x082d, 0x6e },
+ { 0x082e, 0x07 },
+ { 0x082f, 0xe6 },
+ { 0x0830, 0x10 },
+ { 0x0831, 0x0e },
+ { 0x0832, 0x0b },
+ { 0x0833, 0x2c },
+ { 0x0834, 0x14 },
+ { 0x0835, 0xae },
+ { 0x0836, 0x0f },
+ { 0x0837, 0xc4 },
+ { 0x0838, 0x18 },
+ { 0x0839, 0x0e },
+ { 0x05ac, 0x01 },
+ { 0x059a, 0x00 },
+ { 0x059b, 0x00 },
+ { 0x059c, 0x01 },
+ { 0x0598, 0x00 },
+ { 0x0597, 0x14 },
+ { 0x05ab, 0x09 },
+ { 0x05a4, 0x02 },
+ { 0x05a3, 0x05 },
+ { 0x05a0, 0xc2 },
+ { 0x0207, 0xc4 },
+
+ /*GAIN*/
+ { 0x0204, 0x04 },
+ { 0x0205, 0x00 },
+ { 0x0050, 0x38 },
+ { 0x0051, 0x20 },
+
+ /*out window*/
+ { 0x009a, 0x66 },
+ { 0x0351, 0x00 },
+ { 0x0352, 0x06 }, //out_win_y1
+ { 0x0353, 0x00 },
+ { 0x0354, 0x08 }, //out_win_x1
+ { 0x034c, 0x07 },
+ { 0x034d, 0x80 }, //1920
+ { 0x034e, 0x04 },
+ { 0x034f, 0x38 }, //1080
+
+ /*MIPI*/
+ { 0x0114, 0x03 }, //0:1lane 1:2lane 3:4lane
+ { 0x0180, 0x65 }, //[3:0]dphy_mipi_diff
+ { 0x0181, 0xf0 },
+ { 0x0185, 0x01 },
+ { 0x0115, 0x30 },
+ { 0x011b, 0x12 },
+ { 0x011c, 0x12 },
+ { 0x0121, 0x02 }, //T_LPX
+ { 0x0122, 0x03 }, //T_CLK_HS_PREPARE
+ { 0x0123, 0x0c }, //T_CLK_zero
+ { 0x0124, 0x00 }, //T_CLK_PRE
+ { 0x0125, 0x09 }, //T_CLK_POST
+ { 0x0126, 0x06 }, //T_CLK_TRAIL
+ { 0x0129, 0x04 }, //T_HS_PREPARE
+ { 0x012a, 0x03 }, //T_HS_Zero
+ { 0x012b, 0x06 }, //T_HS_TRAIL
+
+ { 0x0a73, 0x60 },
+ { 0x0a70, 0x11 },
+ { 0x0313, 0x80 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0aff, 0x00 },
+ { 0x0a70, 0x00 },
+ { 0x00a4, 0x80 },
+ { 0x0316, 0x01 },
+ { 0x0a67, 0x00 },
+ { 0x0084, 0x10 },
+ { 0x0102, 0x09 },
+
+ { GC08A3_TABLE_END, 0x00 }
+};
+
+static const struct reg_8 mode_table_common[] = {
+ { GC08A3_STRAEMING_REG, 0x00 },
+ /*system*/
+ { 0x031c, 0x60 },
+ { 0x0337, 0x04 },
+ { 0x0335, 0x51 },
+ { 0x0336, 0x70 },
+ { 0x0383, 0xbb },
+ { 0x031a, 0x00 },
+ { 0x0321, 0x10 },
+ { 0x0327, 0x03 },
+ { 0x0325, 0x40 },
+ { 0x0326, 0x23 },
+ { 0x0314, 0x11 },
+ { 0x0315, 0xd6 },
+ { 0x0316, 0x01 },
+ { 0x0334, 0x40 },
+ { 0x0324, 0x42 },
+ { 0x031c, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x039a, 0x13 },
+ { 0x0084, 0x30 },
+ { 0x02b3, 0x08 },
+ { 0x0057, 0x0c },
+ { 0x05c3, 0x50 },
+ { 0x0311, 0x90 },
+ { 0x05a0, 0x02 },
+ { 0x0074, 0x0a },
+ { 0x0059, 0x11 },
+ { 0x0070, 0x05 },
+ { 0x0101, 0x00 }, //[1]updown [0]mirror
+
+ /*analog*/
+ { 0x0344, 0x00 },
+ { 0x0345, 0x06 },
+ { 0x0346, 0x00 },
+ { 0x0347, 0x04 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xd0 }, //3280
+ { 0x034a, 0x09 },
+ { 0x034b, 0x9c }, //2460
+ { 0x0202, 0x09 },
+ { 0x0203, 0x04 }, //Exp
+
+ { 0x0219, 0x05 }, //[4]FL_depend_exp
+ { 0x0226, 0x00 }, //min vb[15:8]
+ { 0x0227, 0x28 }, //min vb[7:0]
+ { 0x0e0a, 0x00 },
+ { 0x0e0b, 0x00 },
+ { 0x0e24, 0x04 },
+ { 0x0e25, 0x04 },
+ { 0x0e26, 0x00 },
+ { 0x0e27, 0x10 },
+ { 0x0e01, 0x74 },
+ { 0x0e03, 0x47 },
+ { 0x0e04, 0x33 },
+ { 0x0e05, 0x44 },
+ { 0x0e06, 0x44 },
+ { 0x0e0c, 0x1e },
+ { 0x0e17, 0x3a },
+ { 0x0e18, 0x3c },
+ { 0x0e19, 0x40 },
+ { 0x0e1a, 0x42 },
+ { 0x0e28, 0x21 },
+ { 0x0e2b, 0x68 },
+ { 0x0e2c, 0x0d },
+ { 0x0e2d, 0x08 },
+ { 0x0e34, 0xf4 },
+ { 0x0e35, 0x44 },
+ { 0x0e36, 0x07 },
+ { 0x0e38, 0x49 },
+ { 0x0210, 0x13 },
+ { 0x0218, 0x00 },
+ { 0x0241, 0x88 },
+ { 0x0e32, 0x00 },
+ { 0x0e33, 0x18 },
+ { 0x0e42, 0x03 },
+ { 0x0e43, 0x80 },
+ { 0x0e44, 0x04 },
+ { 0x0e45, 0x00 },
+ { 0x0e4f, 0x04 },
+ { 0x057a, 0x20 },
+ { 0x0381, 0x7c },
+ { 0x0382, 0x9b },
+ { 0x0384, 0xfb },
+ { 0x0389, 0x38 },
+ { 0x038a, 0x03 },
+ { 0x0390, 0x6a },
+ { 0x0391, 0x0b },
+ { 0x0392, 0x60 },
+ { 0x0393, 0xc1 },
+ { 0x0396, 0xff },
+ { 0x0398, 0x62 },
+
+ /*cisctl reset*/
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 }, //CISCTL_rst
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x80 },
+ { 0x03fe, 0x10 }, //CISCTL_rst
+ { 0x03fe, 0x00 },
+ { 0x031c, 0x9f },
+ { 0x0360, 0x01 },
+ { 0x0360, 0x00 },
+ { 0x0316, 0x09 },
+ { 0x0a67, 0x80 },
+ { 0x0313, 0x00 },
+ { 0x0a53, 0x0e },
+ { 0x0a65, 0x17 },
+ { 0x0a68, 0xa1 },
+ { 0x0a58, 0x00 },
+ { 0x0ace, 0x0c },
+ { 0x00a4, 0x00 },
+ { 0x00a5, 0x01 },
+ { 0x00a7, 0x09 },
+ { 0x00a8, 0x9c },
+ { 0x00a9, 0x0c },
+ { 0x00aa, 0xd0 },
+ { 0x0a8a, 0x00 },
+ { 0x0a8b, 0xe0 },
+ { 0x0a8c, 0x13 },
+ { 0x0a8d, 0xe8 },
+ { 0x0a90, 0x0a },
+ { 0x0a91, 0x10 },
+ { 0x0a92, 0xf8 },
+ { 0x0a71, 0xf2 },
+ { 0x0a72, 0x12 },
+ { 0x0a73, 0x64 },
+ { 0x0a75, 0x41 },
+ { 0x0a70, 0x07 },
+ { 0x0313, 0x80 },
+
+ /*ISP*/
+ { 0x00a0, 0x01 },
+ { 0x0080, 0xd2 },
+ { 0x0081, 0x3f },
+ { 0x0087, 0x51 },
+ { 0x0089, 0x03 },
+ { 0x009b, 0x40 },
+ { 0x05a0, 0x82 },
+ { 0x05ac, 0x00 },
+ { 0x05ad, 0x01 },
+ { 0x05ae, 0x00 },
+ { 0x0800, 0x0a },
+ { 0x0801, 0x14 },
+ { 0x0802, 0x28 },
+ { 0x0803, 0x34 },
+ { 0x0804, 0x0e },
+ { 0x0805, 0x33 },
+ { 0x0806, 0x03 },
+ { 0x0807, 0x8a },
+ { 0x0808, 0x50 },
+ { 0x0809, 0x00 },
+ { 0x080a, 0x34 },
+ { 0x080b, 0x03 },
+ { 0x080c, 0x26 },
+ { 0x080d, 0x03 },
+ { 0x080e, 0x18 },
+ { 0x080f, 0x03 },
+ { 0x0810, 0x10 },
+ { 0x0811, 0x03 },
+ { 0x0812, 0x00 },
+ { 0x0813, 0x00 },
+ { 0x0814, 0x01 },
+ { 0x0815, 0x00 },
+ { 0x0816, 0x01 },
+ { 0x0817, 0x00 },
+ { 0x0818, 0x00 },
+ { 0x0819, 0x0a },
+ { 0x081a, 0x01 },
+ { 0x081b, 0x6c },
+ { 0x081c, 0x00 },
+ { 0x081d, 0x0b },
+ { 0x081e, 0x02 },
+ { 0x081f, 0x00 },
+ { 0x0820, 0x00 },
+ { 0x0821, 0x0c },
+ { 0x0822, 0x02 },
+ { 0x0823, 0xd9 },
+ { 0x0824, 0x00 },
+ { 0x0825, 0x0d },
+ { 0x0826, 0x03 },
+ { 0x0827, 0xf0 },
+ { 0x0828, 0x00 },
+ { 0x0829, 0x0e },
+ { 0x082a, 0x05 },
+ { 0x082b, 0x94 },
+ { 0x082c, 0x09 },
+ { 0x082d, 0x6e },
+ { 0x082e, 0x07 },
+ { 0x082f, 0xe6 },
+ { 0x0830, 0x10 },
+ { 0x0831, 0x0e },
+ { 0x0832, 0x0b },
+ { 0x0833, 0x2c },
+ { 0x0834, 0x14 },
+ { 0x0835, 0xae },
+ { 0x0836, 0x0f },
+ { 0x0837, 0xc4 },
+ { 0x0838, 0x18 },
+ { 0x0839, 0x0e },
+ { 0x05ac, 0x01 },
+ { 0x059a, 0x00 },
+ { 0x059b, 0x00 },
+ { 0x059c, 0x01 },
+ { 0x0598, 0x00 },
+ { 0x0597, 0x14 },
+ { 0x05ab, 0x09 },
+ { 0x05a4, 0x02 },
+ { 0x05a3, 0x05 },
+ { 0x05a0, 0xc2 },
+ { 0x0207, 0xc4 },
+
+ /*GAIN*/
+ { 0x0208, 0x01 },
+ { 0x0209, 0x72 },
+ { 0x0204, 0x04 },
+ { 0x0205, 0x00 },
+
+ { 0x0040, 0x22 },
+ { 0x0041, 0x20 },
+ { 0x0043, 0x10 },
+ { 0x0044, 0x00 },
+ { 0x0046, 0x08 },
+ { 0x0047, 0xf0 },
+ { 0x0048, 0x0f },
+ { 0x004b, 0x0f },
+ { 0x004c, 0x00 },
+ { 0x0050, 0x5c },
+ { 0x0051, 0x44 },
+ { 0x005b, 0x03 },
+ { 0x00c0, 0x00 },
+ { 0x00c1, 0x80 },
+ { 0x00c2, 0x31 },
+ { 0x00c3, 0x00 },
+ { 0x0460, 0x04 },
+ { 0x0462, 0x08 },
+ { 0x0464, 0x0e },
+ { 0x0466, 0x0a },
+ { 0x0468, 0x12 },
+ { 0x046a, 0x12 },
+ { 0x046c, 0x10 },
+ { 0x046e, 0x0c },
+ { 0x0461, 0x03 },
+ { 0x0463, 0x03 },
+ { 0x0465, 0x03 },
+ { 0x0467, 0x03 },
+ { 0x0469, 0x04 },
+ { 0x046b, 0x04 },
+ { 0x046d, 0x04 },
+ { 0x046f, 0x04 },
+ { 0x0470, 0x04 },
+ { 0x0472, 0x10 },
+ { 0x0474, 0x26 },
+ { 0x0476, 0x38 },
+ { 0x0478, 0x20 },
+ { 0x047a, 0x30 },
+ { 0x047c, 0x38 },
+ { 0x047e, 0x60 },
+ { 0x0471, 0x05 },
+ { 0x0473, 0x05 },
+ { 0x0475, 0x05 },
+ { 0x0477, 0x05 },
+ { 0x0479, 0x04 },
+ { 0x047b, 0x04 },
+ { 0x047d, 0x04 },
+ { 0x047f, 0x04 },
+
+ { GC08A3_TABLE_END, 0x00 }
+};
+
+static const struct gc08a3_link_freq_config link_freq_configs[] = {
+ [GC08A3_LINK_FREQ_336MHZ_CFG] = {
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_table_common),
+ .regs = mode_table_common,
+ }
+ },
+ [GC08A3_LINK_FREQ_207MHZ_CFG] = {
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_table_common),
+ .regs = mode_table_common,
+ }
+ },
+
+};
+
+enum {
+ GC08A3_PREV,
+ GC08A3_HS,
+};
+
+/*
+ * Declare modes in order, from biggest
+ * to smallest height.
+ */
+static const struct gc08a3_mode {
+ u8 mode_id;
+ u32 width;
+ u32 height;
+ const struct gc08a3_reg_list reg_list;
+
+ u32 hts; /* Horizontal timining size */
+ u32 vts_def; /* Default vertical timining size */
+ u32 vts_min; /* Min vertical timining size */
+ u32 link_freq_index; /* Link frequency needed for this resolution */
+ u32 max_framerate;
+
+} gc08a3_modes[] = {
+ {
+ .mode_id = GC08A3_PREV,
+ .width = 3264,
+ .height = 2448,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_3264x2448),
+ .regs = mode_3264x2448,
+ },
+ .link_freq_index = GC08A3_LINK_FREQ_336MHZ_CFG,
+
+ .hts = GC08A3_HTS_30FPS,
+ .vts_def = GC08A3_VTS_30FPS,
+ .vts_min = GC08A3_VTS_30FPS_MIN,
+ .max_framerate = 300,
+ },
+ {
+ .mode_id = GC08A3_HS,
+ .width = 1920,
+ .height = 1080,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1920x1080),
+ .regs = mode_1920x1080,
+ },
+ .link_freq_index = GC08A3_LINK_FREQ_207MHZ_CFG,
+
+ .hts = GC08A3_HTS_60FPS,
+ .vts_def = GC08A3_VTS_60FPS,
+ .vts_min = GC08A3_VTS_60FPS_MIN,
+ .max_framerate = 600,
+ },
+};
+
+static u64 to_pixel_rate(u32 f_index)
+{
+ u64 pixel_rate = link_freq_menu_items[f_index] * 2 * GC08A3_DATA_LANES;
+
+ do_div(pixel_rate, GC08A3_RGB_DEPTH);
+
+ return pixel_rate;
+}
+
+static u64 __maybe_unused to_pixels_per_line(u32 hts, u32 f_index)
+{
+ u64 ppl = hts * to_pixel_rate(f_index);
+
+ do_div(ppl, GC08A3_SCLK);
+
+ return ppl;
+}
+
+static int gc08a3_read_reg(struct gc08a3 *gc08a3, u16 reg, u16 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ struct i2c_msg msgs[2];
+ u8 addr_buf[2];
+ u8 data_buf[4] = { 0 };
+ int ret;
+
+ if (len > 4)
+ return -EINVAL;
+
+ put_unaligned_be16(reg, addr_buf);
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = sizeof(addr_buf);
+ msgs[0].buf = addr_buf;
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_buf[4 - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ *val = get_unaligned_be32(data_buf);
+
+ return 0;
+}
+
+static int gc08a3_write_reg(struct gc08a3 *gc08a3, u16 reg, u16 len, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ u8 buf[6];
+
+ if (len > 4)
+ return -EINVAL;
+
+ put_unaligned_be16(reg, buf);
+ put_unaligned_be32(val << 8 * (4 - len), buf + 2);
+ if (i2c_master_send(client, buf, len + 2) != len + 2)
+ return -EIO;
+
+ return 0;
+}
+
+static int gc08a3_write_reg_list(struct gc08a3 *gc08a3,
+ const struct gc08a3_reg_list *r_list)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < r_list->num_of_regs; i++) {
+ if (r_list->regs[i].address == GC08A3_TABLE_WAIT_MS) {
+ usleep_range(r_list->regs[i].val * 1000,
+ r_list->regs[i].val * 1000 + 500);
+ continue;
+ }
+
+ if (r_list->regs[i].address == GC08A3_TABLE_END)
+ break;
+
+ ret = gc08a3_write_reg(gc08a3, r_list->regs[i].address,
+ GC08A3_REG_VALUE_08BIT,
+ r_list->regs[i].val);
+ if (ret) {
+ dev_err_ratelimited(&client->dev,
+ "failed to write reg 0x%4.4x. error = %d",
+ r_list->regs[i].address, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int gc08a3_identify_module(struct gc08a3 *gc08a3)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ u32 val = 0;
+
+ gc08a3_read_reg(gc08a3, GC08A3_REG_CHIP_ID, GC08A3_REG_VALUE_16BIT,
+ &val);
+
+ if (val != GC08A3_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: 0x%x!=0x%x",
+ GC08A3_CHIP_ID, val);
+ return -ENXIO;
+ }
+
+ dev_info(&client->dev, "sensor_id: 0x%04x\n", val);
+ return 0;
+}
+
+static inline struct gc08a3 *to_gc08a3(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct gc08a3, sd);
+}
+
+static int __maybe_unused gc08a3_power_on(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+ int ret;
+
+ dev_info(dev, "--- %s +", __func__);
+
+ gpiod_set_value_cansleep(gc08a3->enable_gpio, 0);
+ usleep_range(2000, 3000);
+
+ ret = regulator_bulk_enable(GC08A3_NUM_SUPPLIES, gc08a3->supplies);
+ if (ret < 0) {
+ dev_err(gc08a3->dev, "failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(gc08a3->xclk);
+ if (ret < 0) {
+ regulator_bulk_disable(GC08A3_NUM_SUPPLIES, gc08a3->supplies);
+ dev_err(gc08a3->dev, "clk prepare enable failed\n");
+ return ret;
+ }
+
+ usleep_range(2000, 3000);
+
+ gpiod_set_value_cansleep(gc08a3->enable_gpio, 1);
+ usleep_range(12000, 15000);
+
+ dev_info(dev, "--- %s -", __func__);
+
+ return 0;
+}
+
+static int __maybe_unused gc08a3_power_off(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+
+ dev_info(dev, "--- %s +", __func__);
+
+ gpiod_set_value_cansleep(gc08a3->enable_gpio, 0);
+
+ clk_disable_unprepare(gc08a3->xclk);
+
+ regulator_bulk_disable(GC08A3_NUM_SUPPLIES, gc08a3->supplies);
+ usleep_range(10, 20);
+
+ dev_info(dev, "--- %s -", __func__);
+
+ return 0;
+}
+
+static int gc08a3_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = GC08A3_MBUS_CODE;
+
+ return 0;
+}
+
+static int gc08a3_enum_frame_size(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->code != GC08A3_MBUS_CODE)
+ return -EINVAL;
+
+ if (fse->index >= ARRAY_SIZE(gc08a3_modes))
+ return -EINVAL;
+
+ fse->min_width = gc08a3_modes[fse->index].width;
+ fse->max_width = gc08a3_modes[fse->index].width;
+ fse->min_height = gc08a3_modes[fse->index].height;
+ fse->max_height = gc08a3_modes[fse->index].height;
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int gc08a3_g_register(struct v4l2_subdev *subdev,
+ struct v4l2_dbg_register *reg)
+{
+ int ret;
+ u32 val;
+ struct gc08a3 *gc08a3 = container_of(subdev, struct gc08a3, sd);
+
+ ret = gc08a3_read_reg(gc08a3, reg->reg, GC08A3_REG_VALUE_08BIT, &val);
+ if (ret < 0)
+ return ret;
+
+ reg->val = val;
+ reg->size = 1;
+
+ return 0;
+}
+
+static int gc08a3_s_register(struct v4l2_subdev *subdev,
+ const struct v4l2_dbg_register *reg)
+{
+ struct gc08a3 *gc08a3 = container_of(subdev, struct gc08a3, sd);
+
+ return gc08a3_write_reg(gc08a3, reg->reg, GC08A3_REG_VALUE_08BIT,
+ reg->val & 0xff);
+}
+
+#endif
+
+static const struct v4l2_subdev_core_ops gc08a3_core_ops = {
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = gc08a3_g_register,
+ .s_register = gc08a3_s_register,
+#endif
+};
+
+static struct v4l2_mbus_framefmt *
+__gc08a3_get_pad_format(struct gc08a3 *gc08a3,
+ struct v4l2_subdev_state *sd_state, unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_format(&gc08a3->sd, sd_state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &gc08a3->fmt;
+ default:
+ return NULL;
+ }
+}
+
+static int gc08a3_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+
+ mutex_lock(&gc08a3->mutex);
+ format->format = *__gc08a3_get_pad_format(gc08a3, sd_state, format->pad,
+ format->which);
+ mutex_unlock(&gc08a3->mutex);
+
+ return 0;
+}
+
+static struct v4l2_rect *
+__gc08a3_get_pad_crop(struct gc08a3 *gc08a3, struct v4l2_subdev_state *sd_state,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_crop(&gc08a3->sd, sd_state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &gc08a3->crop;
+ default:
+ return NULL;
+ }
+}
+
+static int gc08a3_update_cur_mode_controls(struct gc08a3 *gc08a3)
+{
+ s64 exposure_max, h_blank;
+ int ret = 0;
+
+ ret = __v4l2_ctrl_modify_range(gc08a3->vblank,
+ gc08a3->cur_mode->vts_min - gc08a3->cur_mode->height,
+ GC08A3_VTS_MAX - gc08a3->cur_mode->height, 1,
+ gc08a3->cur_mode->vts_def - gc08a3->cur_mode->height);
+ if (ret)
+ dev_err(gc08a3->dev, "VB ctrl range update failed\n");
+
+ h_blank = gc08a3->cur_mode->hts - gc08a3->cur_mode->width;
+ ret = __v4l2_ctrl_modify_range(gc08a3->hblank, h_blank, h_blank, 1,
+ h_blank);
+ if (ret)
+ dev_err(gc08a3->dev, "HB ctrl range update failed\n");
+
+ exposure_max = gc08a3->cur_mode->vts_def - GC08A3_EXP_MARGIN;
+ ret = __v4l2_ctrl_modify_range(gc08a3->exposure, GC08A3_EXP_MIN,
+ exposure_max, GC08A3_EXP_STEP,
+ exposure_max);
+ if (ret)
+ dev_err(gc08a3->dev, "exposure ctrl range update failed\n");
+
+ return ret;
+}
+
+static int gc08a3_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ struct device *dev = &client->dev;
+ struct v4l2_mbus_framefmt *__format;
+ struct v4l2_rect *__crop;
+ const struct gc08a3_mode *mode;
+
+ mutex_lock(&gc08a3->mutex);
+
+ dev_dbg(dev, "---- %s, format(W x H:%d x %d) +", __func__,
+ format->format.width, format->format.height);
+
+ __crop = __gc08a3_get_pad_crop(gc08a3, sd_state, format->pad,
+ format->which);
+
+ mode = v4l2_find_nearest_size(gc08a3_modes, ARRAY_SIZE(gc08a3_modes),
+ width, height, format->format.width,
+ format->format.height);
+
+ dev_dbg(dev, "----nearest mode(W x H:%d x %d)", mode->width,
+ mode->height);
+
+ __crop->width = mode->width;
+ __crop->height = mode->height;
+
+ __format = __gc08a3_get_pad_format(gc08a3, sd_state, format->pad,
+ format->which);
+ __format->width = __crop->width;
+ __format->height = __crop->height;
+ __format->code = GC08A3_MBUS_CODE;
+ __format->field = V4L2_FIELD_NONE;
+ __format->colorspace = V4L2_COLORSPACE_SRGB;
+ __format->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(__format->colorspace);
+ __format->quantization =
+ V4L2_MAP_QUANTIZATION_DEFAULT(true,
+ __format->colorspace,
+ __format->ycbcr_enc);
+ __format->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(__format->colorspace);
+
+ format->format = *__format;
+
+ gc08a3->cur_mode = mode;
+ gc08a3_update_cur_mode_controls(gc08a3);
+
+ mutex_unlock(&gc08a3->mutex);
+
+ return 0;
+}
+
+static int gc08a3_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ mutex_lock(&gc08a3->mutex);
+ sel->r = *__gc08a3_get_pad_crop(gc08a3, sd_state, sel->pad, sel->which);
+ mutex_unlock(&gc08a3->mutex);
+ break;
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = GC08A3_NATIVE_WIDTH;
+ sel->r.height = GC08A3_NATIVE_HEIGHT;
+ break;
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ if (gc08a3->cur_mode->width == GC08A3_NATIVE_WIDTH) {
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = GC08A3_NATIVE_WIDTH;
+ sel->r.height = GC08A3_NATIVE_HEIGHT;
+ } else {
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = 1920;
+ sel->r.height = 1080;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int gc08a3_entity_init_cfg(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_state *sd_state)
+{
+ struct v4l2_subdev_format fmt = {};
+
+ fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY :
+ V4L2_SUBDEV_FORMAT_ACTIVE;
+ fmt.format.width = gc08a3_modes[0].width;
+ fmt.format.height = gc08a3_modes[0].height;
+
+ gc08a3_set_format(subdev, sd_state, &fmt);
+
+ return 0;
+}
+
+static int gc08a3_set_ctrl_hflip(struct gc08a3 *gc08a3, u32 ctrl_val)
+{
+ int ret;
+ u32 val;
+
+ ret = gc08a3_read_reg(gc08a3, GC08A3_FLIP_REG, GC08A3_REG_VALUE_08BIT,
+ &val);
+ if (ret) {
+ dev_err(gc08a3->dev, "read hflip register failed: %d\n", ret);
+ return ret;
+ }
+
+ val = (ctrl_val) ? (val | GC08A3_FLIP_H_MASK) :
+ (val & ~GC08A3_FLIP_H_MASK);
+ ret = gc08a3_write_reg(gc08a3, GC08A3_FLIP_REG, GC08A3_REG_VALUE_08BIT,
+ val);
+ if (ret < 0)
+ dev_err(gc08a3->dev, "Error %d\n", ret);
+
+ return ret;
+}
+
+static int gc08a3_set_ctrl_vflip(struct gc08a3 *gc08a3, u32 ctrl_val)
+{
+ int ret;
+ u32 val;
+
+ ret = gc08a3_read_reg(gc08a3, GC08A3_FLIP_REG, GC08A3_REG_VALUE_08BIT,
+ &val);
+ if (ret) {
+ dev_err(gc08a3->dev, "read vflip register failed: %d\n", ret);
+ return ret;
+ }
+
+ val = (ctrl_val) ? (val | GC08A3_FLIP_V_MASK) :
+ (val & ~GC08A3_FLIP_V_MASK);
+ ret = gc08a3_write_reg(gc08a3, GC08A3_FLIP_REG, GC08A3_REG_VALUE_08BIT,
+ val);
+ if (ret < 0)
+ dev_err(gc08a3->dev, "Error %d\n", ret);
+
+ return ret;
+}
+
+static int gc08a3_test_pattern(struct gc08a3 *gc08a3, u32 pattern_menu)
+{
+ int ret = 0;
+ u32 pattern = 0;
+
+ if (pattern_menu) {
+ // write bit16:0x0110 -> color bar
+ switch (pattern_menu) {
+ case 1:
+ pattern = 0x00;
+ break;
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ pattern = pattern_menu + 2;
+ break;
+ case 7:
+ pattern = 0x10;
+ break;
+
+ default:
+ dev_dbg(gc08a3->dev, "invalid pattern menu!\n");
+ break;
+ }
+
+ ret = gc08a3_write_reg(gc08a3, GC08A3_REG_TEST_PATTERN_EN,
+ GC08A3_REG_VALUE_08BIT,
+ GC08A3_TEST_PATTERN_EN);
+ ret = gc08a3_write_reg(gc08a3, GC08A3_REG_TEST_PATTERN_IDX,
+ GC08A3_REG_VALUE_08BIT, pattern);
+
+ } else {
+ ret = gc08a3_write_reg(gc08a3, GC08A3_REG_TEST_PATTERN_EN,
+ GC08A3_REG_VALUE_08BIT, 0x00);
+ }
+
+ return ret;
+}
+
+static int gc08a3_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gc08a3 *gc08a3 =
+ container_of(ctrl->handler, struct gc08a3, ctrls);
+ int ret = 0;
+ s64 exposure_max;
+
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ /* Update max exposure while meeting expected vblanking */
+ exposure_max = gc08a3->cur_mode->height + ctrl->val -
+ GC08A3_EXP_MARGIN;
+ __v4l2_ctrl_modify_range(gc08a3->exposure,
+ gc08a3->exposure->minimum,
+ exposure_max, gc08a3->exposure->step,
+ exposure_max);
+ }
+
+ /*
+ * Applying V4L2 control value only happens
+ * when power is up for streaming
+ */
+ if (!pm_runtime_get_if_in_use(gc08a3->dev))
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ ret = gc08a3_write_reg(gc08a3, GC08A3_EXP_REG,
+ GC08A3_REG_VALUE_16BIT, ctrl->val);
+ break;
+
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = gc08a3_write_reg(gc08a3, GC08A3_AGAIN_REG,
+ GC08A3_REG_VALUE_16BIT, ctrl->val);
+ break;
+
+ case V4L2_CID_VBLANK:
+ dev_info(gc08a3->dev, "V4L2_CID_VBLANK:height:%d, V_BLNK:%d\n",
+ gc08a3->cur_mode->height, ctrl->val);
+ ret = gc08a3_write_reg(gc08a3, GC08A3_FL_REG,
+ GC08A3_REG_VALUE_16BIT,
+ gc08a3->cur_mode->height + ctrl->val);
+ break;
+
+ case V4L2_CID_HFLIP:
+ gc08a3_set_ctrl_hflip(gc08a3, ctrl->val);
+ break;
+
+ case V4L2_CID_VFLIP:
+ gc08a3_set_ctrl_vflip(gc08a3, ctrl->val);
+ break;
+
+ case V4L2_CID_TEST_PATTERN:
+ ret = gc08a3_test_pattern(gc08a3, ctrl->val);
+ break;
+
+ default:
+ break;
+ }
+
+ pm_runtime_put(gc08a3->dev);
+
+ return ret;
+}
+
+static int get_volatile_ext_ctrl(struct v4l2_ctrl *ctrl)
+{
+ int ret = 0;
+ struct gc08a3 *gc08a3 =
+ container_of(ctrl->handler, struct gc08a3, ctrls);
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+
+ dev_dbg(&client->dev, "---- %s, CMD:0x%x\n", __func__, ctrl->id);
+ switch (ctrl->id) {
+ default:
+ dev_info(&client->dev, "[gc08a3] %s, un-support CMD: 0x%x\n",
+ __func__, ctrl->id);
+ break;
+ }
+
+ return ret;
+}
+
+static int gc08a3_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ int ret = 0;
+
+ switch (ctrl->id) {
+ default:
+ ret = get_volatile_ext_ctrl(ctrl);
+ break;
+ }
+
+ return ret;
+}
+
+static int try_ext_ctrl(struct v4l2_ctrl *ctrl)
+{
+ int ret = 0;
+ struct gc08a3 *gc08a3 =
+ container_of(ctrl->handler, struct gc08a3, ctrls);
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+
+ switch (ctrl->id) {
+ default:
+ dev_dbg(&client->dev,
+ "[gc08a3] un-handle CMD: 0x%x (%s : %d)\n", ctrl->id,
+ __func__, __LINE__);
+ break;
+ }
+
+ return ret;
+}
+
+static int gc08a3_try_ctrl(struct v4l2_ctrl *ctrl)
+{
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ case V4L2_CID_ANALOGUE_GAIN:
+ case V4L2_CID_VBLANK:
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ case V4L2_CID_TEST_PATTERN:
+ return 0;
+
+ default:
+ ret = try_ext_ctrl(ctrl);
+ break;
+ }
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops gc08a3_ctrl_ops = {
+ .g_volatile_ctrl = gc08a3_g_volatile_ctrl,
+ .try_ctrl = gc08a3_try_ctrl,
+ .s_ctrl = gc08a3_set_ctrl,
+};
+
+static int gc08a3_start_streaming(struct gc08a3 *gc08a3)
+{
+ const struct gc08a3_mode *mode;
+ const struct gc08a3_reg_list *reg_list;
+ int link_freq_index;
+ int ret;
+
+ dev_info(gc08a3->dev, "%s ++\n", __func__);
+
+ mutex_lock(&gc08a3->mutex);
+
+ link_freq_index = gc08a3->cur_mode->link_freq_index;
+ dev_info(gc08a3->dev, "----link_freq_index = %d ", link_freq_index);
+
+ reg_list = &link_freq_configs[link_freq_index].reg_list;
+ ret = gc08a3_write_reg_list(gc08a3, reg_list);
+ if (ret) {
+ dev_err(gc08a3->dev, "could not sent common table %d\n", ret);
+ goto error;
+ }
+
+ mode = gc08a3->cur_mode;
+ dev_info(gc08a3->dev, "----write regtbl: mode(id:%d, WxH:%dx%d)",
+ mode->mode_id, mode->width, mode->height);
+ reg_list = &mode->reg_list;
+
+ ret = gc08a3_write_reg_list(gc08a3, reg_list);
+ if (ret < 0) {
+ dev_err(gc08a3->dev, "could not sent mode table %d\n", ret);
+ goto error;
+ }
+ ret = __v4l2_ctrl_handler_setup(&gc08a3->ctrls);
+ if (ret < 0) {
+ dev_err(gc08a3->dev, "could not sync v4l2 controls\n");
+ goto error;
+ }
+
+ ret = gc08a3_write_reg(gc08a3, GC08A3_STRAEMING_REG,
+ GC08A3_REG_VALUE_08BIT, 1);
+ if (ret < 0) {
+ dev_err(gc08a3->dev, "write STRAEMING_REG failed: %d\n", ret);
+ goto error;
+ }
+
+ mutex_unlock(&gc08a3->mutex);
+
+ dev_info(gc08a3->dev, "%s --\n", __func__);
+
+ return 0;
+
+error:
+ mutex_unlock(&gc08a3->mutex);
+ return ret;
+}
+
+static int gc08a3_stop_streaming(struct gc08a3 *gc08a3)
+{
+ int ret;
+
+ dev_info(gc08a3->dev, "%s ++\n", __func__);
+
+ ret = gc08a3_write_reg(gc08a3, GC08A3_STRAEMING_REG,
+ GC08A3_REG_VALUE_08BIT, 0);
+ if (ret < 0)
+ dev_err(gc08a3->dev, "could not sent stop streaming %d\n", ret);
+
+ dev_info(gc08a3->dev, "%s --\n", __func__);
+
+ return ret;
+}
+
+static int gc08a3_s_stream(struct v4l2_subdev *subdev, int enable)
+{
+ struct gc08a3 *gc08a3 = to_gc08a3(subdev);
+ int ret;
+
+ if (gc08a3->streaming == enable)
+ return 0;
+
+ if (enable) {
+ ret = pm_runtime_resume_and_get(gc08a3->dev);
+ if (ret < 0)
+ return ret;
+
+ ret = gc08a3_start_streaming(gc08a3);
+ if (ret < 0)
+ goto err_rpm_put;
+ } else {
+ ret = gc08a3_stop_streaming(gc08a3);
+ if (ret < 0)
+ goto err_rpm_put;
+ pm_runtime_put(gc08a3->dev);
+ }
+
+ gc08a3->streaming = enable;
+ return 0;
+
+err_rpm_put:
+ pm_runtime_put(gc08a3->dev);
+ return ret;
+}
+
+static int gc08a3_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_config *config)
+{
+ config->type = V4L2_MBUS_CSI2_DPHY;
+ config->bus.mipi_csi2.num_data_lanes = 4;
+ config->bus.mipi_csi2.flags = 0;
+ return 0;
+}
+
+static int gc08a3_g_frame_interval(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_frame_interval *fival)
+{
+ struct gc08a3 *gc08a3 = to_gc08a3(subdev);
+
+ fival->interval.numerator = 1;
+ fival->interval.denominator = gc08a3->cur_mode->max_framerate / 10;
+
+ return 0;
+}
+
+static int
+gc08a3_enum_frame_interval(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_interval_enum *fie)
+{
+ const struct gc08a3_mode *mode;
+
+ if (fie->index != 0)
+ return -EINVAL;
+
+ mode = v4l2_find_nearest_size(gc08a3_modes, ARRAY_SIZE(gc08a3_modes),
+ width, height, fie->width, fie->height);
+
+ fie->code = GC08A3_MBUS_CODE;
+ fie->width = mode->width;
+ fie->height = mode->height;
+ fie->interval.numerator = 1;
+ fie->interval.denominator = mode->max_framerate / 10;
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops gc08a3_video_ops = {
+ .s_stream = gc08a3_s_stream,
+ .g_frame_interval = gc08a3_g_frame_interval,
+ .s_frame_interval = gc08a3_g_frame_interval,
+};
+
+static const struct v4l2_subdev_pad_ops gc08a3_subdev_pad_ops = {
+ .enum_mbus_code = gc08a3_enum_mbus_code,
+ .enum_frame_size = gc08a3_enum_frame_size,
+ .enum_frame_interval = gc08a3_enum_frame_interval,
+ .get_fmt = gc08a3_get_format,
+ .set_fmt = gc08a3_set_format,
+ .get_selection = gc08a3_get_selection,
+ .init_cfg = gc08a3_entity_init_cfg,
+ .get_mbus_config = gc08a3_g_mbus_config,
+};
+
+static const struct v4l2_subdev_ops gc08a3_subdev_ops = {
+ .core = &gc08a3_core_ops,
+ .video = &gc08a3_video_ops,
+ .pad = &gc08a3_subdev_pad_ops,
+};
+
+static const struct regmap_config sensor_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int gc08a3_get_regulators(struct device *dev, struct gc08a3 *gc08a3)
+{
+ unsigned int i;
+
+ for (i = 0; i < GC08A3_NUM_SUPPLIES; i++)
+ gc08a3->supplies[i].supply = gc08a3_supply_name[i];
+
+ return devm_regulator_bulk_get(dev, GC08A3_NUM_SUPPLIES,
+ gc08a3->supplies);
+}
+
+static int gc08a3_parse_fwnode(struct device *dev)
+{
+ struct fwnode_handle *endpoint;
+ struct v4l2_fwnode_endpoint bus_cfg = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY,
+ };
+ unsigned int i, j;
+ int ret;
+
+ endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
+ if (!endpoint) {
+ dev_err(dev, "endpoint node not found\n");
+ return -EINVAL;
+ }
+
+ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg);
+ if (ret) {
+ dev_err(dev, "parsing endpoint node failed\n");
+ goto done;
+ }
+
+ if (!bus_cfg.nr_of_link_frequencies) {
+ dev_err(dev, "no link frequencies defined");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) {
+ for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) {
+ if (link_freq_menu_items[i] ==
+ bus_cfg.link_frequencies[j])
+ break;
+ }
+
+ if (j == bus_cfg.nr_of_link_frequencies) {
+ dev_err(dev,
+ "no link frequency %lld supported, please check DT",
+ link_freq_menu_items[i]);
+ ret = -EINVAL;
+ goto done;
+ }
+ }
+
+done:
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+ fwnode_handle_put(endpoint);
+ return ret;
+}
+
+static int __maybe_unused gc08a3_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+
+ if (gc08a3->streaming)
+ gc08a3_stop_streaming(gc08a3);
+
+ return 0;
+}
+
+static int __maybe_unused gc08a3_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+ int ret;
+
+ if (gc08a3->streaming) {
+ ret = gc08a3_start_streaming(gc08a3);
+ if (ret)
+ goto error;
+ }
+
+ return 0;
+
+error:
+ gc08a3_stop_streaming(gc08a3);
+ gc08a3->streaming = 0;
+ return ret;
+}
+
+static int gc08a3_init_controls(struct gc08a3 *gc08a3)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&gc08a3->sd);
+ const struct v4l2_ctrl_ops *ops = &gc08a3_ctrl_ops;
+ struct v4l2_fwnode_device_properties props;
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ s64 exposure_max, h_blank;
+ int ret;
+
+ ctrl_hdlr = &gc08a3->ctrls;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
+ if (ret)
+ return ret;
+
+ ctrl_hdlr->lock = &gc08a3->mutex;
+
+ gc08a3->link_freq =
+ v4l2_ctrl_new_int_menu(ctrl_hdlr,
+ &gc08a3_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ ARRAY_SIZE(link_freq_menu_items) - 1,
+ 0, link_freq_menu_items);
+ if (gc08a3->link_freq)
+ gc08a3->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ gc08a3->pixel_rate =
+ v4l2_ctrl_new_std(ctrl_hdlr,
+ &gc08a3_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 0,
+ to_pixel_rate(GC08A3_LINK_FREQ_336MHZ_CFG), 1,
+ to_pixel_rate(GC08A3_LINK_FREQ_336MHZ_CFG));
+
+ gc08a3->vblank =
+ v4l2_ctrl_new_std(ctrl_hdlr,
+ &gc08a3_ctrl_ops, V4L2_CID_VBLANK,
+ gc08a3->cur_mode->vts_min - gc08a3->cur_mode->height,
+ GC08A3_VTS_MAX - gc08a3->cur_mode->height, 1,
+ gc08a3->cur_mode->vts_def - gc08a3->cur_mode->height);
+
+ h_blank = gc08a3->cur_mode->hts - gc08a3->cur_mode->width;
+ gc08a3->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops,
+ V4L2_CID_HBLANK, h_blank, h_blank, 1,
+ h_blank);
+ if (gc08a3->hblank)
+ gc08a3->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN, GC08A3_AGAIN_MIN,
+ GC08A3_AGAIN_MAX, GC08A3_AGAIN_STEP,
+ GC08A3_AGAIN_MIN);
+
+ exposure_max = gc08a3->cur_mode->vts_def - GC08A3_EXP_MARGIN;
+ gc08a3->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops,
+ V4L2_CID_EXPOSURE, GC08A3_EXP_MIN,
+ exposure_max, GC08A3_EXP_STEP,
+ exposure_max);
+
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &gc08a3_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(gc08a3_test_pattern_menu) - 1,
+ 0, 0, gc08a3_test_pattern_menu);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, V4L2_CID_HFLIP, 0,
+ 1, 1, 0);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &gc08a3_ctrl_ops, V4L2_CID_VFLIP, 0,
+ 1, 1, 0);
+
+ /* register properties to fwnode (e.g. rotation, orientation) */
+ ret = v4l2_fwnode_device_parse(&client->dev, &props);
+ if (ret)
+ goto error_ctrls;
+
+ ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, ops, &props);
+ if (ret)
+ goto error_ctrls;
+
+ if (ctrl_hdlr->error) {
+ ret = ctrl_hdlr->error;
+ goto error_ctrls;
+ }
+
+ gc08a3->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+
+error_ctrls:
+ v4l2_ctrl_handler_free(ctrl_hdlr);
+
+ return ret;
+}
+
+static int gc08a3_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ struct gc08a3 *gc08a3;
+ int ret;
+
+ dev_info(dev, "--- %s +", __func__);
+
+ ret = gc08a3_parse_fwnode(dev);
+ if (ret)
+ return ret;
+
+ gc08a3 = devm_kzalloc(dev, sizeof(*gc08a3), GFP_KERNEL);
+ if (!gc08a3)
+ return -ENOMEM;
+
+ gc08a3->dev = dev;
+
+ gc08a3->xclk = devm_clk_get(dev, NULL);
+ if (IS_ERR(gc08a3->xclk)) {
+ dev_err(dev, "could not get xclk\n");
+ return PTR_ERR(gc08a3->xclk);
+ }
+
+ ret = clk_set_rate(gc08a3->xclk, GC08A3_DEFAULT_CLK_FREQ);
+ if (ret) {
+ dev_err(dev, "could not set xclk frequency\n");
+ return ret;
+ }
+
+ ret = gc08a3_get_regulators(dev, gc08a3);
+ if (ret < 0) {
+ dev_err(dev, "cannot get regulators\n");
+ return ret;
+ }
+
+ gc08a3->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(gc08a3->enable_gpio)) {
+ dev_err(dev, "cannot get enable gpio\n");
+ return PTR_ERR(gc08a3->enable_gpio);
+ }
+
+ gc08a3->regmap = devm_regmap_init_i2c(client, &sensor_regmap_config);
+ if (IS_ERR(gc08a3->regmap)) {
+ dev_err(dev, "regmap init failed\n");
+ return PTR_ERR(gc08a3->regmap);
+ }
+
+ v4l2_i2c_subdev_init(&gc08a3->sd, client, &gc08a3_subdev_ops);
+
+ gc08a3_power_on(gc08a3->dev);
+
+ ret = gc08a3_identify_module(gc08a3);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d\n", ret);
+ gc08a3_power_off(gc08a3->dev);
+ return ret;
+ }
+
+ mutex_init(&gc08a3->mutex);
+ gc08a3->cur_mode = &gc08a3_modes[0];
+
+ ret = gc08a3_init_controls(gc08a3);
+ if (ret) {
+ dev_err(&client->dev, "failed to init controls: %d", ret);
+ goto free_ctrl;
+ }
+
+ gc08a3->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ gc08a3->pad.flags = MEDIA_PAD_FL_SOURCE;
+ gc08a3->sd.dev = &client->dev;
+ gc08a3->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+ dev_dbg(&client->dev, "gc08a3->sd.name: %s, dev->of_node->name: %s\n",
+ gc08a3->sd.name, dev->of_node->name);
+ if (V4L2_SUBDEV_NAME_SIZE - strlen(gc08a3->sd.name) - 2 <
+ strlen(dev->of_node->name)) {
+ dev_err(&client->dev,
+ "the string length of (sd.name + of_node->name) is too long.\n");
+ return -EINVAL;
+ }
+ strncat(gc08a3->sd.name, " ", 1);
+ strncat(gc08a3->sd.name, dev->of_node->name,
+ V4L2_SUBDEV_NAME_SIZE - strlen(gc08a3->sd.name) - 2);
+ dev_dbg(&client->dev, "after: gc08a3->sd.name: %s\n", gc08a3->sd.name);
+
+ ret = media_entity_pads_init(&gc08a3->sd.entity, 1, &gc08a3->pad);
+ if (ret < 0) {
+ dev_err(dev, "could not register media entity\n");
+ goto free_ctrl;
+ }
+
+ ret = v4l2_async_register_subdev_sensor(&gc08a3->sd);
+ if (ret < 0) {
+ dev_err(dev, "could not register v4l2 device\n");
+ goto free_entity;
+ }
+
+ pm_runtime_set_active(gc08a3->dev);
+ pm_runtime_enable(gc08a3->dev);
+ pm_runtime_idle(gc08a3->dev);
+
+ dev_info(dev, "--- %s -", __func__);
+
+ return 0;
+
+free_entity:
+ media_entity_cleanup(&gc08a3->sd.entity);
+free_ctrl:
+ mutex_destroy(&gc08a3->mutex);
+ v4l2_ctrl_handler_free(&gc08a3->ctrls);
+ pm_runtime_disable(gc08a3->dev);
+
+ return ret;
+}
+
+static void gc08a3_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct gc08a3 *gc08a3 = to_gc08a3(sd);
+
+ v4l2_async_unregister_subdev(&gc08a3->sd);
+ media_entity_cleanup(&gc08a3->sd.entity);
+ v4l2_ctrl_handler_free(&gc08a3->ctrls);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+
+ mutex_destroy(&gc08a3->mutex);
+}
+
+static const struct of_device_id gc08a3_of_match[] = {
+ { .compatible = "GalaxyCore,gc08a3" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, gc08a3_of_match);
+
+static const struct dev_pm_ops gc08a3_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(gc08a3_suspend, gc08a3_resume)
+ SET_RUNTIME_PM_OPS(gc08a3_power_off, gc08a3_power_on, NULL)
+};
+
+static struct i2c_driver gc08a3_i2c_driver = {
+ .driver = {
+ .of_match_table = gc08a3_of_match,
+ .pm = &gc08a3_pm_ops,
+ .name = "gc08a3",
+ },
+ .probe_new = gc08a3_probe,
+ .remove = gc08a3_remove,
+};
+
+module_i2c_driver(gc08a3_i2c_driver);
+
+MODULE_DESCRIPTION("GalaxyCore gc08a3 Camera driver");
+MODULE_AUTHOR("Zhi Mao <zhi.mao@mediatek.com>");
+MODULE_LICENSE("GPL");
--
2.25.1