| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Daniel Scally | 7199 | 97.67% | 1 | 9.09% |
| Tommaso Merciai | 101 | 1.37% | 5 | 45.45% |
| Hans de Goede | 66 | 0.90% | 1 | 9.09% |
| kbuild test robot | 2 | 0.03% | 1 | 9.09% |
| Uwe Kleine-König | 2 | 0.03% | 2 | 18.18% |
| Christophe Jaillet | 1 | 0.01% | 1 | 9.09% |
| Total | 7371 | 11 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2013 Intel Corporation. All Rights Reserved. * * Adapted from the atomisp-ov5693 driver, with contributions from: * * Daniel Scally * Jean-Michel Hautbois * Fabian Wuthrich * Tsuchiya Yuto * Jordan Hand * Jake Day */ #include <asm/unaligned.h> #include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/types.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #define OV5693_REG_8BIT(n) ((1 << 16) | (n)) #define OV5693_REG_16BIT(n) ((2 << 16) | (n)) #define OV5693_REG_24BIT(n) ((3 << 16) | (n)) #define OV5693_REG_SIZE_SHIFT 16 #define OV5693_REG_ADDR_MASK 0xffff /* System Control */ #define OV5693_SW_RESET_REG OV5693_REG_8BIT(0x0103) #define OV5693_SW_STREAM_REG OV5693_REG_8BIT(0x0100) #define OV5693_START_STREAMING 0x01 #define OV5693_STOP_STREAMING 0x00 #define OV5693_SW_RESET 0x01 #define OV5693_REG_CHIP_ID OV5693_REG_16BIT(0x300a) /* Yes, this is right. The datasheet for the OV5693 gives its ID as 0x5690 */ #define OV5693_CHIP_ID 0x5690 /* Exposure */ #define OV5693_EXPOSURE_CTRL_REG OV5693_REG_24BIT(0x3500) #define OV5693_EXPOSURE_CTRL_MASK GENMASK(19, 4) #define OV5693_INTEGRATION_TIME_MARGIN 8 #define OV5693_EXPOSURE_MIN 1 #define OV5693_EXPOSURE_STEP 1 /* Analogue Gain */ #define OV5693_GAIN_CTRL_REG OV5693_REG_16BIT(0x350a) #define OV5693_GAIN_CTRL_MASK GENMASK(10, 4) #define OV5693_GAIN_MIN 1 #define OV5693_GAIN_MAX 127 #define OV5693_GAIN_DEF 8 #define OV5693_GAIN_STEP 1 /* Digital Gain */ #define OV5693_MWB_RED_GAIN_REG OV5693_REG_16BIT(0x3400) #define OV5693_MWB_GREEN_GAIN_REG OV5693_REG_16BIT(0x3402) #define OV5693_MWB_BLUE_GAIN_REG OV5693_REG_16BIT(0x3404) #define OV5693_MWB_GAIN_MASK GENMASK(11, 0) #define OV5693_MWB_GAIN_MAX 0x0fff #define OV5693_DIGITAL_GAIN_MIN 1 #define OV5693_DIGITAL_GAIN_MAX 4095 #define OV5693_DIGITAL_GAIN_DEF 1024 #define OV5693_DIGITAL_GAIN_STEP 1 /* Timing and Format */ #define OV5693_CROP_START_X_REG OV5693_REG_16BIT(0x3800) #define OV5693_CROP_START_Y_REG OV5693_REG_16BIT(0x3802) #define OV5693_CROP_END_X_REG OV5693_REG_16BIT(0x3804) #define OV5693_CROP_END_Y_REG OV5693_REG_16BIT(0x3806) #define OV5693_OUTPUT_SIZE_X_REG OV5693_REG_16BIT(0x3808) #define OV5693_OUTPUT_SIZE_Y_REG OV5693_REG_16BIT(0x380a) #define OV5693_TIMING_HTS_REG OV5693_REG_16BIT(0x380c) #define OV5693_FIXED_PPL 2688U #define OV5693_TIMING_VTS_REG OV5693_REG_16BIT(0x380e) #define OV5693_TIMING_MAX_VTS 0xffff #define OV5693_TIMING_MIN_VTS 0x04 #define OV5693_OFFSET_START_X_REG OV5693_REG_16BIT(0x3810) #define OV5693_OFFSET_START_Y_REG OV5693_REG_16BIT(0x3812) #define OV5693_SUB_INC_X_REG OV5693_REG_8BIT(0x3814) #define OV5693_SUB_INC_Y_REG OV5693_REG_8BIT(0x3815) #define OV5693_FORMAT1_REG OV5693_REG_8BIT(0x3820) #define OV5693_FORMAT1_FLIP_VERT_ISP_EN BIT(6) #define OV5693_FORMAT1_FLIP_VERT_SENSOR_EN BIT(1) #define OV5693_FORMAT1_VBIN_EN BIT(0) #define OV5693_FORMAT2_REG OV5693_REG_8BIT(0x3821) #define OV5693_FORMAT2_HDR_EN BIT(7) #define OV5693_FORMAT2_FLIP_HORZ_ISP_EN BIT(2) #define OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN BIT(1) #define OV5693_FORMAT2_HBIN_EN BIT(0) #define OV5693_ISP_CTRL2_REG OV5693_REG_8BIT(0x5002) #define OV5693_ISP_SCALE_ENABLE BIT(7) /* Pixel Array */ #define OV5693_NATIVE_WIDTH 2624 #define OV5693_NATIVE_HEIGHT 1956 #define OV5693_NATIVE_START_LEFT 0 #define OV5693_NATIVE_START_TOP 0 #define OV5693_ACTIVE_WIDTH 2592 #define OV5693_ACTIVE_HEIGHT 1944 #define OV5693_ACTIVE_START_LEFT 16 #define OV5693_ACTIVE_START_TOP 6 #define OV5693_MIN_CROP_WIDTH 2 #define OV5693_MIN_CROP_HEIGHT 2 /* Test Pattern */ #define OV5693_TEST_PATTERN_REG OV5693_REG_8BIT(0x5e00) #define OV5693_TEST_PATTERN_ENABLE BIT(7) #define OV5693_TEST_PATTERN_ROLLING BIT(6) #define OV5693_TEST_PATTERN_RANDOM 0x01 #define OV5693_TEST_PATTERN_BARS 0x00 /* System Frequencies */ #define OV5693_XVCLK_FREQ 19200000 #define OV5693_LINK_FREQ_419_2MHZ 419200000 #define OV5693_PIXEL_RATE 167680000 #define to_ov5693_sensor(x) container_of(x, struct ov5693_device, sd) static const char * const ov5693_supply_names[] = { "avdd", /* Analog power */ "dovdd", /* Digital I/O power */ "dvdd", /* Digital circuit power */ }; #define OV5693_NUM_SUPPLIES ARRAY_SIZE(ov5693_supply_names) struct ov5693_reg { u32 reg; u8 val; }; struct ov5693_reg_list { u32 num_regs; const struct ov5693_reg *regs; }; struct ov5693_device { struct i2c_client *client; struct device *dev; /* Protect against concurrent changes to controls */ struct mutex lock; struct gpio_desc *reset; struct gpio_desc *powerdown; struct gpio_desc *privacy_led; struct regulator_bulk_data supplies[OV5693_NUM_SUPPLIES]; struct clk *xvclk; struct ov5693_mode { struct v4l2_rect crop; struct v4l2_mbus_framefmt format; bool binning_x; bool binning_y; unsigned int inc_x_odd; unsigned int inc_y_odd; unsigned int vts; } mode; bool streaming; struct v4l2_subdev sd; struct media_pad pad; struct ov5693_v4l2_ctrls { struct v4l2_ctrl_handler handler; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *exposure; struct v4l2_ctrl *analogue_gain; struct v4l2_ctrl *digital_gain; struct v4l2_ctrl *hflip; struct v4l2_ctrl *vflip; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; struct v4l2_ctrl *test_pattern; } ctrls; }; static const struct ov5693_reg ov5693_global_regs[] = { {OV5693_REG_8BIT(0x3016), 0xf0}, {OV5693_REG_8BIT(0x3017), 0xf0}, {OV5693_REG_8BIT(0x3018), 0xf0}, {OV5693_REG_8BIT(0x3022), 0x01}, {OV5693_REG_8BIT(0x3028), 0x44}, {OV5693_REG_8BIT(0x3098), 0x02}, {OV5693_REG_8BIT(0x3099), 0x19}, {OV5693_REG_8BIT(0x309a), 0x02}, {OV5693_REG_8BIT(0x309b), 0x01}, {OV5693_REG_8BIT(0x309c), 0x00}, {OV5693_REG_8BIT(0x30a0), 0xd2}, {OV5693_REG_8BIT(0x30a2), 0x01}, {OV5693_REG_8BIT(0x30b2), 0x00}, {OV5693_REG_8BIT(0x30b3), 0x83}, {OV5693_REG_8BIT(0x30b4), 0x03}, {OV5693_REG_8BIT(0x30b5), 0x04}, {OV5693_REG_8BIT(0x30b6), 0x01}, {OV5693_REG_8BIT(0x3080), 0x01}, {OV5693_REG_8BIT(0x3104), 0x21}, {OV5693_REG_8BIT(0x3106), 0x00}, {OV5693_REG_8BIT(0x3406), 0x01}, {OV5693_REG_8BIT(0x3503), 0x07}, {OV5693_REG_8BIT(0x350b), 0x40}, {OV5693_REG_8BIT(0x3601), 0x0a}, {OV5693_REG_8BIT(0x3602), 0x38}, {OV5693_REG_8BIT(0x3612), 0x80}, {OV5693_REG_8BIT(0x3620), 0x54}, {OV5693_REG_8BIT(0x3621), 0xc7}, {OV5693_REG_8BIT(0x3622), 0x0f}, {OV5693_REG_8BIT(0x3625), 0x10}, {OV5693_REG_8BIT(0x3630), 0x55}, {OV5693_REG_8BIT(0x3631), 0xf4}, {OV5693_REG_8BIT(0x3632), 0x00}, {OV5693_REG_8BIT(0x3633), 0x34}, {OV5693_REG_8BIT(0x3634), 0x02}, {OV5693_REG_8BIT(0x364d), 0x0d}, {OV5693_REG_8BIT(0x364f), 0xdd}, {OV5693_REG_8BIT(0x3660), 0x04}, {OV5693_REG_8BIT(0x3662), 0x10}, {OV5693_REG_8BIT(0x3663), 0xf1}, {OV5693_REG_8BIT(0x3665), 0x00}, {OV5693_REG_8BIT(0x3666), 0x20}, {OV5693_REG_8BIT(0x3667), 0x00}, {OV5693_REG_8BIT(0x366a), 0x80}, {OV5693_REG_8BIT(0x3680), 0xe0}, {OV5693_REG_8BIT(0x3681), 0x00}, {OV5693_REG_8BIT(0x3700), 0x42}, {OV5693_REG_8BIT(0x3701), 0x14}, {OV5693_REG_8BIT(0x3702), 0xa0}, {OV5693_REG_8BIT(0x3703), 0xd8}, {OV5693_REG_8BIT(0x3704), 0x78}, {OV5693_REG_8BIT(0x3705), 0x02}, {OV5693_REG_8BIT(0x370a), 0x00}, {OV5693_REG_8BIT(0x370b), 0x20}, {OV5693_REG_8BIT(0x370c), 0x0c}, {OV5693_REG_8BIT(0x370d), 0x11}, {OV5693_REG_8BIT(0x370e), 0x00}, {OV5693_REG_8BIT(0x370f), 0x40}, {OV5693_REG_8BIT(0x3710), 0x00}, {OV5693_REG_8BIT(0x371a), 0x1c}, {OV5693_REG_8BIT(0x371b), 0x05}, {OV5693_REG_8BIT(0x371c), 0x01}, {OV5693_REG_8BIT(0x371e), 0xa1}, {OV5693_REG_8BIT(0x371f), 0x0c}, {OV5693_REG_8BIT(0x3721), 0x00}, {OV5693_REG_8BIT(0x3724), 0x10}, {OV5693_REG_8BIT(0x3726), 0x00}, {OV5693_REG_8BIT(0x372a), 0x01}, {OV5693_REG_8BIT(0x3730), 0x10}, {OV5693_REG_8BIT(0x3738), 0x22}, {OV5693_REG_8BIT(0x3739), 0xe5}, {OV5693_REG_8BIT(0x373a), 0x50}, {OV5693_REG_8BIT(0x373b), 0x02}, {OV5693_REG_8BIT(0x373c), 0x41}, {OV5693_REG_8BIT(0x373f), 0x02}, {OV5693_REG_8BIT(0x3740), 0x42}, {OV5693_REG_8BIT(0x3741), 0x02}, {OV5693_REG_8BIT(0x3742), 0x18}, {OV5693_REG_8BIT(0x3743), 0x01}, {OV5693_REG_8BIT(0x3744), 0x02}, {OV5693_REG_8BIT(0x3747), 0x10}, {OV5693_REG_8BIT(0x374c), 0x04}, {OV5693_REG_8BIT(0x3751), 0xf0}, {OV5693_REG_8BIT(0x3752), 0x00}, {OV5693_REG_8BIT(0x3753), 0x00}, {OV5693_REG_8BIT(0x3754), 0xc0}, {OV5693_REG_8BIT(0x3755), 0x00}, {OV5693_REG_8BIT(0x3756), 0x1a}, {OV5693_REG_8BIT(0x3758), 0x00}, {OV5693_REG_8BIT(0x3759), 0x0f}, {OV5693_REG_8BIT(0x376b), 0x44}, {OV5693_REG_8BIT(0x375c), 0x04}, {OV5693_REG_8BIT(0x3774), 0x10}, {OV5693_REG_8BIT(0x3776), 0x00}, {OV5693_REG_8BIT(0x377f), 0x08}, {OV5693_REG_8BIT(0x3780), 0x22}, {OV5693_REG_8BIT(0x3781), 0x0c}, {OV5693_REG_8BIT(0x3784), 0x2c}, {OV5693_REG_8BIT(0x3785), 0x1e}, {OV5693_REG_8BIT(0x378f), 0xf5}, {OV5693_REG_8BIT(0x3791), 0xb0}, {OV5693_REG_8BIT(0x3795), 0x00}, {OV5693_REG_8BIT(0x3796), 0x64}, {OV5693_REG_8BIT(0x3797), 0x11}, {OV5693_REG_8BIT(0x3798), 0x30}, {OV5693_REG_8BIT(0x3799), 0x41}, {OV5693_REG_8BIT(0x379a), 0x07}, {OV5693_REG_8BIT(0x379b), 0xb0}, {OV5693_REG_8BIT(0x379c), 0x0c}, {OV5693_REG_8BIT(0x3a04), 0x06}, {OV5693_REG_8BIT(0x3a05), 0x14}, {OV5693_REG_8BIT(0x3e07), 0x20}, {OV5693_REG_8BIT(0x4000), 0x08}, {OV5693_REG_8BIT(0x4001), 0x04}, {OV5693_REG_8BIT(0x4004), 0x08}, {OV5693_REG_8BIT(0x4006), 0x20}, {OV5693_REG_8BIT(0x4008), 0x24}, {OV5693_REG_8BIT(0x4009), 0x10}, {OV5693_REG_8BIT(0x4058), 0x00}, {OV5693_REG_8BIT(0x4101), 0xb2}, {OV5693_REG_8BIT(0x4307), 0x31}, {OV5693_REG_8BIT(0x4511), 0x05}, {OV5693_REG_8BIT(0x4512), 0x01}, {OV5693_REG_8BIT(0x481f), 0x30}, {OV5693_REG_8BIT(0x4826), 0x2c}, {OV5693_REG_8BIT(0x4d02), 0xfd}, {OV5693_REG_8BIT(0x4d03), 0xf5}, {OV5693_REG_8BIT(0x4d04), 0x0c}, {OV5693_REG_8BIT(0x4d05), 0xcc}, {OV5693_REG_8BIT(0x4837), 0x0a}, {OV5693_REG_8BIT(0x5003), 0x20}, {OV5693_REG_8BIT(0x5013), 0x00}, {OV5693_REG_8BIT(0x5842), 0x01}, {OV5693_REG_8BIT(0x5843), 0x2b}, {OV5693_REG_8BIT(0x5844), 0x01}, {OV5693_REG_8BIT(0x5845), 0x92}, {OV5693_REG_8BIT(0x5846), 0x01}, {OV5693_REG_8BIT(0x5847), 0x8f}, {OV5693_REG_8BIT(0x5848), 0x01}, {OV5693_REG_8BIT(0x5849), 0x0c}, {OV5693_REG_8BIT(0x5e10), 0x0c}, {OV5693_REG_8BIT(0x3820), 0x00}, {OV5693_REG_8BIT(0x3821), 0x1e}, {OV5693_REG_8BIT(0x5041), 0x14} }; static const struct ov5693_reg_list ov5693_global_setting = { .num_regs = ARRAY_SIZE(ov5693_global_regs), .regs = ov5693_global_regs, }; static const struct v4l2_rect ov5693_default_crop = { .left = OV5693_ACTIVE_START_LEFT, .top = OV5693_ACTIVE_START_TOP, .width = OV5693_ACTIVE_WIDTH, .height = OV5693_ACTIVE_HEIGHT, }; static const struct v4l2_mbus_framefmt ov5693_default_fmt = { .width = OV5693_ACTIVE_WIDTH, .height = OV5693_ACTIVE_HEIGHT, .code = MEDIA_BUS_FMT_SBGGR10_1X10, }; static const s64 link_freq_menu_items[] = { OV5693_LINK_FREQ_419_2MHZ }; static const char * const ov5693_test_pattern_menu[] = { "Disabled", "Random Data", "Colour Bars", "Colour Bars with Rolling Bar" }; static const u8 ov5693_test_pattern_bits[] = { 0, OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_RANDOM, OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS, OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS | OV5693_TEST_PATTERN_ROLLING, }; /* I2C I/O Operations */ static int ov5693_read_reg(struct ov5693_device *ov5693, u32 addr, u32 *value) { struct i2c_client *client = ov5693->client; __be16 reg; u8 val[4]; struct i2c_msg msg[] = { { .addr = client->addr, .flags = 0, .len = 2, .buf = (u8 *)®, }, { .addr = client->addr, .flags = I2C_M_RD, .buf = (u8 *)&val, }, }; unsigned int len = ((addr >> OV5693_REG_SIZE_SHIFT) & 3); unsigned int i; int ret; reg = cpu_to_be16(addr & OV5693_REG_ADDR_MASK); msg[1].len = len; ret = i2c_transfer(client->adapter, msg, 2); if (ret < 0) return dev_err_probe(&client->dev, ret, "Failed to read register 0x%04x\n", addr & OV5693_REG_ADDR_MASK); *value = 0; for (i = 0; i < len; ++i) { *value <<= 8; *value |= val[i]; } return 0; } static void ov5693_write_reg(struct ov5693_device *ov5693, u32 addr, u32 value, int *error) { struct i2c_client *client = ov5693->client; struct { __be16 reg; u8 val[4]; } __packed buf; struct i2c_msg msg = { .addr = client->addr, .buf = (u8 *)&buf, }; unsigned int len = ((addr >> OV5693_REG_SIZE_SHIFT) & 3); unsigned int i; int ret; if (*error < 0) return; buf.reg = cpu_to_be16(addr & OV5693_REG_ADDR_MASK); for (i = 0; i < len; ++i) { buf.val[len - i - 1] = value & 0xff; value >>= 8; } msg.len = len + 2; ret = i2c_transfer(client->adapter, &msg, 1); if (ret < 0) { dev_err(&client->dev, "Failed to write register 0x%04x: %d\n", addr & OV5693_REG_ADDR_MASK, ret); *error = ret; } } static int ov5693_write_reg_array(struct ov5693_device *ov5693, const struct ov5693_reg_list *reglist) { unsigned int i; int ret = 0; for (i = 0; i < reglist->num_regs; i++) ov5693_write_reg(ov5693, reglist->regs[i].reg, reglist->regs[i].val, &ret); return ret; } static int ov5693_update_bits(struct ov5693_device *ov5693, u32 address, u32 mask, u32 bits) { u32 value = 0; int ret; ret = ov5693_read_reg(ov5693, address, &value); if (ret) return ret; value &= ~mask; value |= bits; ov5693_write_reg(ov5693, address, value, &ret); return ret; } /* V4L2 Controls Functions */ static int ov5693_flip_vert_configure(struct ov5693_device *ov5693, bool enable) { u8 bits = OV5693_FORMAT1_FLIP_VERT_ISP_EN | OV5693_FORMAT1_FLIP_VERT_SENSOR_EN; int ret; ret = ov5693_update_bits(ov5693, OV5693_FORMAT1_REG, bits, enable ? bits : 0); if (ret) return ret; return 0; } static int ov5693_flip_horz_configure(struct ov5693_device *ov5693, bool enable) { u8 bits = OV5693_FORMAT2_FLIP_HORZ_ISP_EN | OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN; int ret; ret = ov5693_update_bits(ov5693, OV5693_FORMAT2_REG, bits, enable ? bits : 0); if (ret) return ret; return 0; } static int ov5693_get_exposure(struct ov5693_device *ov5693, s32 *value) { u32 exposure; int ret; ret = ov5693_read_reg(ov5693, OV5693_EXPOSURE_CTRL_REG, &exposure); if (ret) return ret; /* The lowest 4 bits are unsupported fractional bits */ *value = exposure >> 4; return 0; } static int ov5693_exposure_configure(struct ov5693_device *ov5693, u32 exposure) { int ret = 0; exposure = (exposure << 4) & OV5693_EXPOSURE_CTRL_MASK; ov5693_write_reg(ov5693, OV5693_EXPOSURE_CTRL_REG, exposure, &ret); return ret; } static int ov5693_get_gain(struct ov5693_device *ov5693, u32 *gain) { u32 value; int ret; ret = ov5693_read_reg(ov5693, OV5693_GAIN_CTRL_REG, &value); if (ret) return ret; /* As with exposure, the lowest 4 bits are fractional bits. */ *gain = value >> 4; return ret; } static int ov5693_digital_gain_configure(struct ov5693_device *ov5693, u32 gain) { int ret = 0; gain &= OV5693_MWB_GAIN_MASK; ov5693_write_reg(ov5693, OV5693_MWB_RED_GAIN_REG, gain, &ret); ov5693_write_reg(ov5693, OV5693_MWB_GREEN_GAIN_REG, gain, &ret); ov5693_write_reg(ov5693, OV5693_MWB_BLUE_GAIN_REG, gain, &ret); return ret; } static int ov5693_analog_gain_configure(struct ov5693_device *ov5693, u32 gain) { int ret = 0; gain = (gain << 4) & OV5693_GAIN_CTRL_MASK; ov5693_write_reg(ov5693, OV5693_GAIN_CTRL_REG, gain, &ret); return ret; } static int ov5693_vts_configure(struct ov5693_device *ov5693, u32 vblank) { u16 vts = ov5693->mode.format.height + vblank; int ret = 0; ov5693_write_reg(ov5693, OV5693_TIMING_VTS_REG, vts, &ret); return ret; } static int ov5693_test_pattern_configure(struct ov5693_device *ov5693, u32 idx) { int ret = 0; ov5693_write_reg(ov5693, OV5693_TEST_PATTERN_REG, ov5693_test_pattern_bits[idx], &ret); return ret; } static int ov5693_s_ctrl(struct v4l2_ctrl *ctrl) { struct ov5693_device *ov5693 = container_of(ctrl->handler, struct ov5693_device, ctrls.handler); int ret = 0; /* If VBLANK is altered we need to update exposure to compensate */ if (ctrl->id == V4L2_CID_VBLANK) { int exposure_max; exposure_max = ov5693->mode.format.height + ctrl->val - OV5693_INTEGRATION_TIME_MARGIN; __v4l2_ctrl_modify_range(ov5693->ctrls.exposure, ov5693->ctrls.exposure->minimum, exposure_max, ov5693->ctrls.exposure->step, min(ov5693->ctrls.exposure->val, exposure_max)); } /* Only apply changes to the controls if the device is powered up */ if (!pm_runtime_get_if_in_use(ov5693->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: ret = ov5693_exposure_configure(ov5693, ctrl->val); break; case V4L2_CID_ANALOGUE_GAIN: ret = ov5693_analog_gain_configure(ov5693, ctrl->val); break; case V4L2_CID_DIGITAL_GAIN: ret = ov5693_digital_gain_configure(ov5693, ctrl->val); break; case V4L2_CID_HFLIP: ret = ov5693_flip_horz_configure(ov5693, !!ctrl->val); break; case V4L2_CID_VFLIP: ret = ov5693_flip_vert_configure(ov5693, !!ctrl->val); break; case V4L2_CID_VBLANK: ret = ov5693_vts_configure(ov5693, ctrl->val); break; case V4L2_CID_TEST_PATTERN: ret = ov5693_test_pattern_configure(ov5693, ctrl->val); break; default: ret = -EINVAL; } pm_runtime_put(ov5693->dev); return ret; } static int ov5693_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { struct ov5693_device *ov5693 = container_of(ctrl->handler, struct ov5693_device, ctrls.handler); switch (ctrl->id) { case V4L2_CID_EXPOSURE_ABSOLUTE: return ov5693_get_exposure(ov5693, &ctrl->val); case V4L2_CID_AUTOGAIN: return ov5693_get_gain(ov5693, &ctrl->val); default: return -EINVAL; } } static const struct v4l2_ctrl_ops ov5693_ctrl_ops = { .s_ctrl = ov5693_s_ctrl, .g_volatile_ctrl = ov5693_g_volatile_ctrl }; /* System Control Functions */ static int ov5693_mode_configure(struct ov5693_device *ov5693) { const struct ov5693_mode *mode = &ov5693->mode; int ret = 0; /* Crop Start X */ ov5693_write_reg(ov5693, OV5693_CROP_START_X_REG, mode->crop.left, &ret); /* Offset X */ ov5693_write_reg(ov5693, OV5693_OFFSET_START_X_REG, 0, &ret); /* Output Size X */ ov5693_write_reg(ov5693, OV5693_OUTPUT_SIZE_X_REG, mode->format.width, &ret); /* Crop End X */ ov5693_write_reg(ov5693, OV5693_CROP_END_X_REG, mode->crop.left + mode->crop.width, &ret); /* Horizontal Total Size */ ov5693_write_reg(ov5693, OV5693_TIMING_HTS_REG, OV5693_FIXED_PPL, &ret); /* Crop Start Y */ ov5693_write_reg(ov5693, OV5693_CROP_START_Y_REG, mode->crop.top, &ret); /* Offset Y */ ov5693_write_reg(ov5693, OV5693_OFFSET_START_Y_REG, 0, &ret); /* Output Size Y */ ov5693_write_reg(ov5693, OV5693_OUTPUT_SIZE_Y_REG, mode->format.height, &ret); /* Crop End Y */ ov5693_write_reg(ov5693, OV5693_CROP_END_Y_REG, mode->crop.top + mode->crop.height, &ret); /* Subsample X increase */ ov5693_write_reg(ov5693, OV5693_SUB_INC_X_REG, ((mode->inc_x_odd << 4) & 0xf0) | 0x01, &ret); /* Subsample Y increase */ ov5693_write_reg(ov5693, OV5693_SUB_INC_Y_REG, ((mode->inc_y_odd << 4) & 0xf0) | 0x01, &ret); if (ret) return ret; /* Binning */ ret = ov5693_update_bits(ov5693, OV5693_FORMAT1_REG, OV5693_FORMAT1_VBIN_EN, mode->binning_y ? OV5693_FORMAT1_VBIN_EN : 0); if (ret) return ret; ret = ov5693_update_bits(ov5693, OV5693_FORMAT2_REG, OV5693_FORMAT2_HBIN_EN, mode->binning_x ? OV5693_FORMAT2_HBIN_EN : 0); return ret; } static int ov5693_enable_streaming(struct ov5693_device *ov5693, bool enable) { int ret = 0; ov5693_write_reg(ov5693, OV5693_SW_STREAM_REG, enable ? OV5693_START_STREAMING : OV5693_STOP_STREAMING, &ret); return ret; } static int ov5693_sw_reset(struct ov5693_device *ov5693) { int ret = 0; ov5693_write_reg(ov5693, OV5693_SW_RESET_REG, OV5693_SW_RESET, &ret); return ret; } static int ov5693_sensor_init(struct ov5693_device *ov5693) { int ret; ret = ov5693_sw_reset(ov5693); if (ret) return dev_err_probe(ov5693->dev, ret, "software reset error\n"); ret = ov5693_write_reg_array(ov5693, &ov5693_global_setting); if (ret) return dev_err_probe(ov5693->dev, ret, "global settings error\n"); ret = ov5693_mode_configure(ov5693); if (ret) return dev_err_probe(ov5693->dev, ret, "mode configure error\n"); ret = ov5693_enable_streaming(ov5693, false); if (ret) dev_err(ov5693->dev, "stop streaming error\n"); return ret; } static void ov5693_sensor_powerdown(struct ov5693_device *ov5693) { gpiod_set_value_cansleep(ov5693->privacy_led, 0); gpiod_set_value_cansleep(ov5693->reset, 1); gpiod_set_value_cansleep(ov5693->powerdown, 1); regulator_bulk_disable(OV5693_NUM_SUPPLIES, ov5693->supplies); clk_disable_unprepare(ov5693->xvclk); } static int ov5693_sensor_powerup(struct ov5693_device *ov5693) { int ret; gpiod_set_value_cansleep(ov5693->reset, 1); gpiod_set_value_cansleep(ov5693->powerdown, 1); ret = clk_prepare_enable(ov5693->xvclk); if (ret) { dev_err(ov5693->dev, "Failed to enable clk\n"); goto fail_power; } ret = regulator_bulk_enable(OV5693_NUM_SUPPLIES, ov5693->supplies); if (ret) { dev_err(ov5693->dev, "Failed to enable regulators\n"); goto fail_power; } gpiod_set_value_cansleep(ov5693->powerdown, 0); gpiod_set_value_cansleep(ov5693->reset, 0); gpiod_set_value_cansleep(ov5693->privacy_led, 1); usleep_range(5000, 7500); return 0; fail_power: ov5693_sensor_powerdown(ov5693); return ret; } static int __maybe_unused ov5693_sensor_suspend(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct ov5693_device *ov5693 = to_ov5693_sensor(sd); ov5693_sensor_powerdown(ov5693); return 0; } static int __maybe_unused ov5693_sensor_resume(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct ov5693_device *ov5693 = to_ov5693_sensor(sd); int ret; mutex_lock(&ov5693->lock); ret = ov5693_sensor_powerup(ov5693); if (ret) goto out_unlock; ret = ov5693_sensor_init(ov5693); if (ret) { dev_err(dev, "ov5693 sensor init failure\n"); goto err_power; } goto out_unlock; err_power: ov5693_sensor_powerdown(ov5693); out_unlock: mutex_unlock(&ov5693->lock); return ret; } static int ov5693_detect(struct ov5693_device *ov5693) { int ret; u32 id; ret = ov5693_read_reg(ov5693, OV5693_REG_CHIP_ID, &id); if (ret) return ret; if (id != OV5693_CHIP_ID) return dev_err_probe(ov5693->dev, -ENODEV, "sensor ID mismatch. Found 0x%04x\n", id); return 0; } /* V4L2 Framework callbacks */ static unsigned int __ov5693_calc_vts(u32 height) { /* * We need to set a sensible default VTS for whatever format height we * happen to be given from set_fmt(). This function just targets * an even multiple of 30fps. */ unsigned int tgt_fps; tgt_fps = rounddown(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / height, 30); return ALIGN_DOWN(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / tgt_fps, 2); } static struct v4l2_mbus_framefmt * __ov5693_get_pad_format(struct ov5693_device *ov5693, struct v4l2_subdev_state *state, unsigned int pad, enum v4l2_subdev_format_whence which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: return v4l2_subdev_get_try_format(&ov5693->sd, state, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &ov5693->mode.format; default: return NULL; } } static struct v4l2_rect * __ov5693_get_pad_crop(struct ov5693_device *ov5693, struct v4l2_subdev_state *state, unsigned int pad, enum v4l2_subdev_format_whence which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: return v4l2_subdev_get_try_crop(&ov5693->sd, state, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &ov5693->mode.crop; } return NULL; } static int ov5693_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_format *format) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); format->format = ov5693->mode.format; return 0; } static int ov5693_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_format *format) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); const struct v4l2_rect *crop; struct v4l2_mbus_framefmt *fmt; unsigned int hratio, vratio; unsigned int width, height; unsigned int hblank; int exposure_max; crop = __ov5693_get_pad_crop(ov5693, state, format->pad, format->which); /* * Align to two to simplify the binning calculations below, and clamp * the requested format at the crop rectangle */ width = clamp_t(unsigned int, ALIGN(format->format.width, 2), OV5693_MIN_CROP_WIDTH, crop->width); height = clamp_t(unsigned int, ALIGN(format->format.height, 2), OV5693_MIN_CROP_HEIGHT, crop->height); /* * We can only support setting either the dimensions of the crop rect * or those dimensions binned (separately) by a factor of two. */ hratio = clamp_t(unsigned int, DIV_ROUND_CLOSEST(crop->width, width), 1, 2); vratio = clamp_t(unsigned int, DIV_ROUND_CLOSEST(crop->height, height), 1, 2); fmt = __ov5693_get_pad_format(ov5693, state, format->pad, format->which); fmt->width = crop->width / hratio; fmt->height = crop->height / vratio; fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; format->format = *fmt; if (format->which == V4L2_SUBDEV_FORMAT_TRY) return 0; mutex_lock(&ov5693->lock); ov5693->mode.binning_x = hratio > 1; ov5693->mode.inc_x_odd = hratio > 1 ? 3 : 1; ov5693->mode.binning_y = vratio > 1; ov5693->mode.inc_y_odd = vratio > 1 ? 3 : 1; ov5693->mode.vts = __ov5693_calc_vts(fmt->height); __v4l2_ctrl_modify_range(ov5693->ctrls.vblank, OV5693_TIMING_MIN_VTS, OV5693_TIMING_MAX_VTS - fmt->height, 1, ov5693->mode.vts - fmt->height); __v4l2_ctrl_s_ctrl(ov5693->ctrls.vblank, ov5693->mode.vts - fmt->height); hblank = OV5693_FIXED_PPL - fmt->width; __v4l2_ctrl_modify_range(ov5693->ctrls.hblank, hblank, hblank, 1, hblank); exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN; __v4l2_ctrl_modify_range(ov5693->ctrls.exposure, ov5693->ctrls.exposure->minimum, exposure_max, ov5693->ctrls.exposure->step, min(ov5693->ctrls.exposure->val, exposure_max)); mutex_unlock(&ov5693->lock); return 0; } static int ov5693_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_selection *sel) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); switch (sel->target) { case V4L2_SEL_TGT_CROP: mutex_lock(&ov5693->lock); sel->r = *__ov5693_get_pad_crop(ov5693, state, sel->pad, sel->which); mutex_unlock(&ov5693->lock); break; case V4L2_SEL_TGT_NATIVE_SIZE: sel->r.top = 0; sel->r.left = 0; sel->r.width = OV5693_NATIVE_WIDTH; sel->r.height = OV5693_NATIVE_HEIGHT; break; case V4L2_SEL_TGT_CROP_BOUNDS: case V4L2_SEL_TGT_CROP_DEFAULT: sel->r.top = OV5693_ACTIVE_START_TOP; sel->r.left = OV5693_ACTIVE_START_LEFT; sel->r.width = OV5693_ACTIVE_WIDTH; sel->r.height = OV5693_ACTIVE_HEIGHT; break; default: return -EINVAL; } return 0; } static int ov5693_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_selection *sel) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); struct v4l2_mbus_framefmt *format; struct v4l2_rect *__crop; struct v4l2_rect rect; if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; /* * Clamp the boundaries of the crop rectangle to the size of the sensor * pixel array. Align to multiples of 2 to ensure Bayer pattern isn't * disrupted. */ rect.left = clamp(ALIGN(sel->r.left, 2), OV5693_NATIVE_START_LEFT, OV5693_NATIVE_WIDTH); rect.top = clamp(ALIGN(sel->r.top, 2), OV5693_NATIVE_START_TOP, OV5693_NATIVE_HEIGHT); rect.width = clamp_t(unsigned int, ALIGN(sel->r.width, 2), OV5693_MIN_CROP_WIDTH, OV5693_NATIVE_WIDTH); rect.height = clamp_t(unsigned int, ALIGN(sel->r.height, 2), OV5693_MIN_CROP_HEIGHT, OV5693_NATIVE_HEIGHT); /* Make sure the crop rectangle isn't outside the bounds of the array */ rect.width = min_t(unsigned int, rect.width, OV5693_NATIVE_WIDTH - rect.left); rect.height = min_t(unsigned int, rect.height, OV5693_NATIVE_HEIGHT - rect.top); __crop = __ov5693_get_pad_crop(ov5693, state, sel->pad, sel->which); if (rect.width != __crop->width || rect.height != __crop->height) { /* * Reset the output image size if the crop rectangle size has * been modified. */ format = __ov5693_get_pad_format(ov5693, state, sel->pad, sel->which); format->width = rect.width; format->height = rect.height; } *__crop = rect; sel->r = rect; return 0; } static int ov5693_s_stream(struct v4l2_subdev *sd, int enable) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); int ret; if (enable) { ret = pm_runtime_get_sync(ov5693->dev); if (ret < 0) goto err_power_down; mutex_lock(&ov5693->lock); ret = __v4l2_ctrl_handler_setup(&ov5693->ctrls.handler); if (ret) { mutex_unlock(&ov5693->lock); goto err_power_down; } ret = ov5693_enable_streaming(ov5693, true); mutex_unlock(&ov5693->lock); } else { mutex_lock(&ov5693->lock); ret = ov5693_enable_streaming(ov5693, false); mutex_unlock(&ov5693->lock); } if (ret) goto err_power_down; ov5693->streaming = !!enable; if (!enable) pm_runtime_put(ov5693->dev); return 0; err_power_down: pm_runtime_put_noidle(ov5693->dev); return ret; } static int ov5693_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *interval) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); unsigned int framesize = OV5693_FIXED_PPL * (ov5693->mode.format.height + ov5693->ctrls.vblank->val); unsigned int fps = DIV_ROUND_CLOSEST(OV5693_PIXEL_RATE, framesize); interval->interval.numerator = 1; interval->interval.denominator = fps; return 0; } static int ov5693_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_mbus_code_enum *code) { /* Only a single mbus format is supported */ if (code->index > 0) return -EINVAL; code->code = MEDIA_BUS_FMT_SBGGR10_1X10; return 0; } static int ov5693_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *state, struct v4l2_subdev_frame_size_enum *fse) { struct ov5693_device *ov5693 = to_ov5693_sensor(sd); struct v4l2_rect *__crop; if (fse->index > 1 || fse->code != MEDIA_BUS_FMT_SBGGR10_1X10) return -EINVAL; __crop = __ov5693_get_pad_crop(ov5693, state, fse->pad, fse->which); if (!__crop) return -EINVAL; fse->min_width = __crop->width / (fse->index + 1); fse->min_height = __crop->height / (fse->index + 1); fse->max_width = fse->min_width; fse->max_height = fse->min_height; return 0; } static const struct v4l2_subdev_video_ops ov5693_video_ops = { .s_stream = ov5693_s_stream, .g_frame_interval = ov5693_g_frame_interval, }; static const struct v4l2_subdev_pad_ops ov5693_pad_ops = { .enum_mbus_code = ov5693_enum_mbus_code, .enum_frame_size = ov5693_enum_frame_size, .get_fmt = ov5693_get_fmt, .set_fmt = ov5693_set_fmt, .get_selection = ov5693_get_selection, .set_selection = ov5693_set_selection, }; static const struct v4l2_subdev_ops ov5693_ops = { .video = &ov5693_video_ops, .pad = &ov5693_pad_ops, }; /* Sensor and Driver Configuration Functions */ static int ov5693_init_controls(struct ov5693_device *ov5693) { const struct v4l2_ctrl_ops *ops = &ov5693_ctrl_ops; struct ov5693_v4l2_ctrls *ctrls = &ov5693->ctrls; struct v4l2_fwnode_device_properties props; int vblank_max, vblank_def; int exposure_max; int hblank; int ret; ret = v4l2_ctrl_handler_init(&ctrls->handler, 12); if (ret) return ret; /* link freq */ ctrls->link_freq = v4l2_ctrl_new_int_menu(&ctrls->handler, NULL, V4L2_CID_LINK_FREQ, 0, 0, link_freq_menu_items); if (ctrls->link_freq) ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; /* pixel rate */ ctrls->pixel_rate = v4l2_ctrl_new_std(&ctrls->handler, NULL, V4L2_CID_PIXEL_RATE, 0, OV5693_PIXEL_RATE, 1, OV5693_PIXEL_RATE); /* Exposure */ exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN; ctrls->exposure = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_EXPOSURE, OV5693_EXPOSURE_MIN, exposure_max, OV5693_EXPOSURE_STEP, exposure_max); /* Gain */ ctrls->analogue_gain = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_ANALOGUE_GAIN, OV5693_GAIN_MIN, OV5693_GAIN_MAX, OV5693_GAIN_STEP, OV5693_GAIN_DEF); ctrls->digital_gain = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_DIGITAL_GAIN, OV5693_DIGITAL_GAIN_MIN, OV5693_DIGITAL_GAIN_MAX, OV5693_DIGITAL_GAIN_STEP, OV5693_DIGITAL_GAIN_DEF); /* Flip */ ctrls->hflip = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); ctrls->vflip = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); hblank = OV5693_FIXED_PPL - ov5693->mode.format.width; ctrls->hblank = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_HBLANK, hblank, hblank, 1, hblank); if (ctrls->hblank) ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; vblank_max = OV5693_TIMING_MAX_VTS - ov5693->mode.format.height; vblank_def = ov5693->mode.vts - ov5693->mode.format.height; ctrls->vblank = v4l2_ctrl_new_std(&ctrls->handler, ops, V4L2_CID_VBLANK, OV5693_TIMING_MIN_VTS, vblank_max, 1, vblank_def); ctrls->test_pattern = v4l2_ctrl_new_std_menu_items( &ctrls->handler, ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov5693_test_pattern_menu) - 1, 0, 0, ov5693_test_pattern_menu); if (ctrls->handler.error) { dev_err(ov5693->dev, "Error initialising v4l2 ctrls\n"); ret = ctrls->handler.error; goto err_free_handler; } /* set properties from fwnode (e.g. rotation, orientation) */ ret = v4l2_fwnode_device_parse(ov5693->dev, &props); if (ret) goto err_free_handler; ret = v4l2_ctrl_new_fwnode_properties(&ctrls->handler, ops, &props); if (ret) goto err_free_handler; /* Use same lock for controls as for everything else. */ ctrls->handler.lock = &ov5693->lock; ov5693->sd.ctrl_handler = &ctrls->handler; return 0; err_free_handler: v4l2_ctrl_handler_free(&ctrls->handler); return ret; } static int ov5693_configure_gpios(struct ov5693_device *ov5693) { ov5693->reset = devm_gpiod_get_optional(ov5693->dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(ov5693->reset)) { dev_err(ov5693->dev, "Error fetching reset GPIO\n"); return PTR_ERR(ov5693->reset); } ov5693->powerdown = devm_gpiod_get_optional(ov5693->dev, "powerdown", GPIOD_OUT_HIGH); if (IS_ERR(ov5693->powerdown)) { dev_err(ov5693->dev, "Error fetching powerdown GPIO\n"); return PTR_ERR(ov5693->powerdown); } ov5693->privacy_led = devm_gpiod_get_optional(ov5693->dev, "privacy-led", GPIOD_OUT_LOW); if (IS_ERR(ov5693->privacy_led)) { dev_err(ov5693->dev, "Error fetching privacy-led GPIO\n"); return PTR_ERR(ov5693->privacy_led); } return 0; } static int ov5693_get_regulators(struct ov5693_device *ov5693) { unsigned int i; for (i = 0; i < OV5693_NUM_SUPPLIES; i++) ov5693->supplies[i].supply = ov5693_supply_names[i]; return devm_regulator_bulk_get(ov5693->dev, OV5693_NUM_SUPPLIES, ov5693->supplies); } static int ov5693_check_hwcfg(struct ov5693_device *ov5693) { struct fwnode_handle *fwnode = dev_fwnode(ov5693->dev); struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_CSI2_DPHY, }; struct fwnode_handle *endpoint; unsigned int i; int ret; endpoint = fwnode_graph_get_next_endpoint(fwnode, NULL); if (!endpoint) return -EPROBE_DEFER; /* Could be provided by cio2-bridge */ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg); fwnode_handle_put(endpoint); if (ret) return ret; if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) { dev_err(ov5693->dev, "only a 2-lane CSI2 config is supported"); ret = -EINVAL; goto out_free_bus_cfg; } if (!bus_cfg.nr_of_link_frequencies) { dev_err(ov5693->dev, "no link frequencies defined\n"); ret = -EINVAL; goto out_free_bus_cfg; } for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) if (bus_cfg.link_frequencies[i] == OV5693_LINK_FREQ_419_2MHZ) break; if (i == bus_cfg.nr_of_link_frequencies) { dev_err(ov5693->dev, "supported link freq %ull not found\n", OV5693_LINK_FREQ_419_2MHZ); ret = -EINVAL; goto out_free_bus_cfg; } out_free_bus_cfg: v4l2_fwnode_endpoint_free(&bus_cfg); return ret; } static int ov5693_probe(struct i2c_client *client) { struct ov5693_device *ov5693; u32 xvclk_rate; int ret = 0; ov5693 = devm_kzalloc(&client->dev, sizeof(*ov5693), GFP_KERNEL); if (!ov5693) return -ENOMEM; ov5693->client = client; ov5693->dev = &client->dev; ret = ov5693_check_hwcfg(ov5693); if (ret) return ret; mutex_init(&ov5693->lock); v4l2_i2c_subdev_init(&ov5693->sd, client, &ov5693_ops); ov5693->xvclk = devm_clk_get_optional(&client->dev, "xvclk"); if (IS_ERR(ov5693->xvclk)) return dev_err_probe(&client->dev, PTR_ERR(ov5693->xvclk), "failed to get xvclk: %ld\n", PTR_ERR(ov5693->xvclk)); if (ov5693->xvclk) { xvclk_rate = clk_get_rate(ov5693->xvclk); } else { ret = fwnode_property_read_u32(dev_fwnode(&client->dev), "clock-frequency", &xvclk_rate); if (ret) { dev_err(&client->dev, "can't get clock frequency"); return ret; } } if (xvclk_rate != OV5693_XVCLK_FREQ) dev_warn(&client->dev, "Found clk freq %u, expected %u\n", xvclk_rate, OV5693_XVCLK_FREQ); ret = ov5693_configure_gpios(ov5693); if (ret) return ret; ret = ov5693_get_regulators(ov5693); if (ret) return dev_err_probe(&client->dev, ret, "Error fetching regulators\n"); ov5693->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; ov5693->pad.flags = MEDIA_PAD_FL_SOURCE; ov5693->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; ov5693->mode.crop = ov5693_default_crop; ov5693->mode.format = ov5693_default_fmt; ov5693->mode.vts = __ov5693_calc_vts(ov5693->mode.format.height); ret = ov5693_init_controls(ov5693); if (ret) return ret; ret = media_entity_pads_init(&ov5693->sd.entity, 1, &ov5693->pad); if (ret) goto err_ctrl_handler_free; /* * We need the driver to work in the event that pm runtime is disable in * the kernel, so power up and verify the chip now. In the event that * runtime pm is disabled this will leave the chip on, so that streaming * will work. */ ret = ov5693_sensor_powerup(ov5693); if (ret) goto err_media_entity_cleanup; ret = ov5693_detect(ov5693); if (ret) goto err_powerdown; pm_runtime_set_active(&client->dev); pm_runtime_get_noresume(&client->dev); pm_runtime_enable(&client->dev); ret = v4l2_async_register_subdev_sensor(&ov5693->sd); if (ret) { dev_err(&client->dev, "failed to register V4L2 subdev: %d", ret); goto err_pm_runtime; } pm_runtime_set_autosuspend_delay(&client->dev, 1000); pm_runtime_use_autosuspend(&client->dev); pm_runtime_put_autosuspend(&client->dev); return ret; err_pm_runtime: pm_runtime_disable(&client->dev); pm_runtime_put_noidle(&client->dev); err_powerdown: ov5693_sensor_powerdown(ov5693); err_media_entity_cleanup: media_entity_cleanup(&ov5693->sd.entity); err_ctrl_handler_free: v4l2_ctrl_handler_free(&ov5693->ctrls.handler); return ret; } static void ov5693_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov5693_device *ov5693 = to_ov5693_sensor(sd); v4l2_async_unregister_subdev(sd); media_entity_cleanup(&ov5693->sd.entity); v4l2_ctrl_handler_free(&ov5693->ctrls.handler); mutex_destroy(&ov5693->lock); /* * Disable runtime PM. In case runtime PM is disabled in the kernel, * make sure to turn power off manually. */ pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) ov5693_sensor_powerdown(ov5693); pm_runtime_set_suspended(&client->dev); } static const struct dev_pm_ops ov5693_pm_ops = { SET_RUNTIME_PM_OPS(ov5693_sensor_suspend, ov5693_sensor_resume, NULL) }; static const struct acpi_device_id ov5693_acpi_match[] = { {"INT33BE"}, {}, }; MODULE_DEVICE_TABLE(acpi, ov5693_acpi_match); static const struct of_device_id ov5693_of_match[] = { { .compatible = "ovti,ov5693", }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ov5693_of_match); static struct i2c_driver ov5693_driver = { .driver = { .name = "ov5693", .acpi_match_table = ov5693_acpi_match, .of_match_table = ov5693_of_match, .pm = &ov5693_pm_ops, }, .probe = ov5693_probe, .remove = ov5693_remove, }; module_i2c_driver(ov5693_driver); MODULE_DESCRIPTION("A low-level driver for OmniVision 5693 sensors"); MODULE_LICENSE("GPL");
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