Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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// SPDX-License-Identifier: GPL-2.0
/*
* gc2385 driver
*
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
*
* V0.0X01.0X01 add poweron function.
* V0.0X01.0X02 fix mclk issue when probe multiple camera.
* V0.0X01.0X03 add enum_frame_interval function.
* V0.0X01.0X04 add quick stream on/off
* V0.0X01.0X05 add function g_mbus_config
* V0.0X01.0X06 set max framerate to strictly 30FPS for cts
*/
#include <linux/clk.h>
#include <linux/device.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/regulator/consumer.h>
#include <linux/sysfs.h>
#include <linux/version.h>
#include <linux/rk-camera-module.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include <linux/pinctrl/consumer.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x05)
#ifndef V4L2_CID_DIGITAL_GAIN
#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
#endif
#define GC2385_LANES 1
#define GC2385_BITS_PER_SAMPLE 10
#define GC2385_LINK_FREQ_MHZ 328000000
/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
#define GC2385_PIXEL_RATE (GC2385_LINK_FREQ_MHZ * 2 * 1 / 10)
#define GC2385_XVCLK_FREQ 24000000
#define CHIP_ID 0x2385
#define GC2385_REG_CHIP_ID_H 0xf0
#define GC2385_REG_CHIP_ID_L 0xf1
#define GC2385_REG_SET_PAGE 0xfe
#define GC2385_SET_PAGE_ONE 0x00
#define GC2385_REG_CTRL_MODE 0xed
#define GC2385_MODE_SW_STANDBY 0x00
#define GC2385_MODE_STREAMING 0x90
#define GC2385_REG_EXPOSURE_H 0x03
#define GC2385_REG_EXPOSURE_L 0x04
#define GC2385_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 8) & 0x3F) /* 6 Bits */
#define GC2385_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 8 Bits */
#define GC2385_EXPOSURE_MIN 4
#define GC2385_EXPOSURE_STEP 1
#define GC2385_VTS_MAX 0x1fff
#define GC2385_REG_AGAIN 0xb6
#define GC2385_REG_DGAIN_INT 0xb1
#define GC2385_REG_DGAIN_FRAC 0xb2
#define GC2385_GAIN_MIN 64
#define GC2385_GAIN_MAX 1092
#define GC2385_GAIN_STEP 1
#define GC2385_GAIN_DEFAULT 64
#define GC2385_REG_VTS_H 0x07
#define GC2385_REG_VTS_L 0x08
#define REG_NULL 0xFF
#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
#define GC2385_NAME "gc2385"
static const char * const gc2385_supply_names[] = {
<------>"avdd", /* Analog power */
<------>"dovdd", /* Digital I/O power */
<------>"dvdd", /* Digital core power */
};
#define GC2385_NUM_SUPPLIES ARRAY_SIZE(gc2385_supply_names)
struct regval {
<------>u8 addr;
<------>u8 val;
};
struct gc2385_mode {
<------>u32 width;
<------>u32 height;
<------>struct v4l2_fract max_fps;
<------>u32 hts_def;
<------>u32 vts_def;
<------>u32 exp_def;
<------>const struct regval *reg_list;
};
struct gc2385 {
<------>struct i2c_client *client;
<------>struct clk *xvclk;
<------>struct gpio_desc *reset_gpio;
<------>struct gpio_desc *pwdn_gpio;
<------>struct regulator_bulk_data supplies[GC2385_NUM_SUPPLIES];
<------>struct pinctrl *pinctrl;
<------>struct pinctrl_state *pins_default;
<------>struct pinctrl_state *pins_sleep;
<------>struct v4l2_subdev subdev;
<------>struct media_pad pad;
<------>struct v4l2_ctrl_handler ctrl_handler;
<------>struct v4l2_ctrl *exposure;
<------>struct v4l2_ctrl *anal_gain;
<------>struct v4l2_ctrl *digi_gain;
<------>struct v4l2_ctrl *hblank;
<------>struct v4l2_ctrl *vblank;
<------>struct mutex mutex;
<------>bool streaming;
<------>bool power_on;
<------>const struct gc2385_mode *cur_mode;
<------>u32 module_index;
<------>const char *module_facing;
<------>const char *module_name;
<------>const char *len_name;
};
#define to_gc2385(sd) container_of(sd, struct gc2385, subdev)
/*
* Xclk 24Mhz
*/
static const struct regval gc2385_global_regs[] = {
<------>{REG_NULL, 0x00},
};
/*
* Xclk 24Mhz
* max_framerate 30fps
* mipi_datarate per lane 656Mbps
*/
static const struct regval gc2385_1600x1200_regs[] = {
<------>{0xfe, 0x00},
<------>{0xfe, 0x00},
<------>{0xfe, 0x00},
<------>{0xf2, 0x02},
<------>{0xf4, 0x03},
<------>{0xf7, 0x01},
<------>{0xf8, 0x28},
<------>{0xf9, 0x02},
<------>{0xfa, 0x08},
<------>{0xfc, 0x8e},
<------>{0xe7, 0xcc},
<------>{0x88, 0x03},
<------>{0x03, 0x04},
<------>{0x04, 0x80},
<------>{0x05, 0x02},
<------>{0x06, 0x86},
<------>{0x07, 0x00},
<------>{0x08, 0x10},
<------>{0x09, 0x00},
<------>{0x0a, 0x04},
<------>{0x0b, 0x00},
<------>{0x0c, 0x02},
<------>{0x17, 0xd4},
<------>{0x18, 0x02},
<------>{0x19, 0x17},
<------>{0x1c, 0x18},
<------>{0x20, 0x73},
<------>{0x21, 0x38},
<------>{0x22, 0xa2},
<------>{0x29, 0x20},
<------>{0x2f, 0x14},
<------>{0x3f, 0x40},
<------>{0xcd, 0x94},
<------>{0xce, 0x45},
<------>{0xd1, 0x0c},
<------>{0xd7, 0x9b},
<------>{0xd8, 0x99},
<------>{0xda, 0x3b},
<------>{0xd9, 0xb5},
<------>{0xdb, 0x75},
<------>{0xe3, 0x1b},
<------>{0xe4, 0xf8},
<------>{0x40, 0x22},
<------>{0x43, 0x07},
<------>{0x4e, 0x3c},
<------>{0x4f, 0x00},
<------>{0x68, 0x00},
<------>{0xb0, 0x46},
<------>{0xb1, 0x01},
<------>{0xb2, 0x00},
<------>{0xb6, 0x00},
<------>{0x90, 0x01},
<------>{0x92, 0x03},
<------>{0x94, 0x05},
<------>{0x95, 0x04},
<------>{0x96, 0xb0},
<------>{0x97, 0x06},
<------>{0x98, 0x40},
<------>{0xfe, 0x00},
<------>{0xed, 0x00},
<------>{0xfe, 0x03},
<------>{0x01, 0x03},
<------>{0x02, 0x82},
<------>{0x03, 0xd0},
<------>{0x04, 0x04},
<------>{0x05, 0x00},
<------>{0x06, 0x80},
<------>{0x11, 0x2b},
<------>{0x12, 0xd0},
<------>{0x13, 0x07},
<------>{0x15, 0x00},
<------>{0x1b, 0x10},
<------>{0x1c, 0x10},
<------>{0x21, 0x08},
<------>{0x22, 0x05},
<------>{0x23, 0x13},
<------>{0x24, 0x02},
<------>{0x25, 0x13},
<------>{0x26, 0x06},
<------>{0x29, 0x06},
<------>{0x2a, 0x08},
<------>{0x2b, 0x06},
<------>{0xfe, 0x00},
<------>{REG_NULL, 0x00},
};
static const struct gc2385_mode supported_modes[] = {
<------>{
<------><------>.width = 1600,
<------><------>.height = 1200,
<------><------>.max_fps = {
<------><------><------>.numerator = 10000,
<------><------><------>.denominator = 300000,
<------><------>},
<------><------>.exp_def = 0x0480,
<------><------>.hts_def = 0x10DC,
<------><------>.vts_def = 0x04F0,
<------><------>.reg_list = gc2385_1600x1200_regs,
<------>},
};
static const s64 link_freq_menu_items[] = {
<------>GC2385_LINK_FREQ_MHZ
};
/* Write registers up to 4 at a time */
static int gc2385_write_reg(struct i2c_client *client, u8 reg, u8 val)
{
<------>struct i2c_msg msg;
<------>u8 buf[2];
<------>int ret;
<------>buf[0] = reg & 0xFF;
<------>buf[1] = val;
<------>msg.addr = client->addr;
<------>msg.flags = client->flags;
<------>msg.buf = buf;
<------>msg.len = sizeof(buf);
<------>ret = i2c_transfer(client->adapter, &msg, 1);
<------>if (ret >= 0)
<------><------>return 0;
<------>dev_err(&client->dev,
<------><------>"gc2385 write reg(0x%x val:0x%x) failed !\n", reg, val);
<------>return ret;
}
static int gc2385_write_array(struct i2c_client *client,
<------><------><------> const struct regval *regs)
{
<------>u32 i = 0;
<------>int ret = 0;
<------>for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
<------><------>ret = gc2385_write_reg(client, regs[i].addr, regs[i].val);
<------>return ret;
}
/* Read registers up to 4 at a time */
static int gc2385_read_reg(struct i2c_client *client, u8 reg, u8 *val)
{
<------>struct i2c_msg msg[2];
<------>u8 buf[1];
<------>int ret;
<------>buf[0] = reg & 0xFF;
<------>msg[0].addr = client->addr;
<------>msg[0].flags = client->flags;
<------>msg[0].buf = buf;
<------>msg[0].len = sizeof(buf);
<------>msg[1].addr = client->addr;
<------>msg[1].flags = client->flags | I2C_M_RD;
<------>msg[1].buf = buf;
<------>msg[1].len = 1;
<------>ret = i2c_transfer(client->adapter, msg, 2);
<------>if (ret >= 0) {
<------><------>*val = buf[0];
<------><------>return 0;
<------>}
<------>dev_err(&client->dev,
<------><------>"gc2385 read reg:0x%x failed !\n", reg);
<------>return ret;
}
static int gc2385_get_reso_dist(const struct gc2385_mode *mode,
<------><------><------><------> struct v4l2_mbus_framefmt *framefmt)
{
<------>return abs(mode->width - framefmt->width) +
<------> abs(mode->height - framefmt->height);
}
static const struct gc2385_mode *
gc2385_find_best_fit(struct v4l2_subdev_format *fmt)
{
<------>struct v4l2_mbus_framefmt *framefmt = &fmt->format;
<------>int dist;
<------>int cur_best_fit = 0;
<------>int cur_best_fit_dist = -1;
<------>unsigned int i;
<------>for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
<------><------>dist = gc2385_get_reso_dist(&supported_modes[i], framefmt);
<------><------>if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
<------><------><------>cur_best_fit_dist = dist;
<------><------><------>cur_best_fit = i;
<------><------>}
<------>}
<------>return &supported_modes[cur_best_fit];
}
static int gc2385_set_fmt(struct v4l2_subdev *sd,
<------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------> struct v4l2_subdev_format *fmt)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>const struct gc2385_mode *mode;
<------>s64 h_blank, vblank_def;
<------>mutex_lock(&gc2385->mutex);
<------>mode = gc2385_find_best_fit(fmt);
<------>fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
<------>fmt->format.width = mode->width;
<------>fmt->format.height = mode->height;
<------>fmt->format.field = V4L2_FIELD_NONE;
<------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
<------><------>*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
#else
<------><------>mutex_unlock(&gc2385->mutex);
<------><------>return -ENOTTY;
#endif
<------>} else {
<------><------>gc2385->cur_mode = mode;
<------><------>h_blank = mode->hts_def - mode->width;
<------><------>__v4l2_ctrl_modify_range(gc2385->hblank, h_blank,
<------><------><------><------><------> h_blank, 1, h_blank);
<------><------>vblank_def = mode->vts_def - mode->height;
<------><------>__v4l2_ctrl_modify_range(gc2385->vblank, vblank_def,
<------><------><------><------><------> GC2385_VTS_MAX - mode->height,
<------><------><------><------><------> 1, vblank_def);
<------>}
<------>mutex_unlock(&gc2385->mutex);
<------>return 0;
}
static int gc2385_get_fmt(struct v4l2_subdev *sd,
<------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------> struct v4l2_subdev_format *fmt)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>const struct gc2385_mode *mode = gc2385->cur_mode;
<------>mutex_lock(&gc2385->mutex);
<------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
<------><------>fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
#else
<------><------>mutex_unlock(&gc2385->mutex);
<------><------>return -ENOTTY;
#endif
<------>} else {
<------><------>fmt->format.width = mode->width;
<------><------>fmt->format.height = mode->height;
<------><------>fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
<------><------>fmt->format.field = V4L2_FIELD_NONE;
<------>}
<------>mutex_unlock(&gc2385->mutex);
<------>return 0;
}
static int gc2385_enum_mbus_code(struct v4l2_subdev *sd,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_mbus_code_enum *code)
{
<------>if (code->index != 0)
<------><------>return -EINVAL;
<------>code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
<------>return 0;
}
static int gc2385_enum_frame_sizes(struct v4l2_subdev *sd,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_frame_size_enum *fse)
{
<------>if (fse->index >= ARRAY_SIZE(supported_modes))
<------><------>return -EINVAL;
<------>if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
<------><------>return -EINVAL;
<------>fse->min_width = supported_modes[fse->index].width;
<------>fse->max_width = supported_modes[fse->index].width;
<------>fse->max_height = supported_modes[fse->index].height;
<------>fse->min_height = supported_modes[fse->index].height;
<------>return 0;
}
static int gc2385_g_frame_interval(struct v4l2_subdev *sd,
<------><------><------><------> struct v4l2_subdev_frame_interval *fi)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>const struct gc2385_mode *mode = gc2385->cur_mode;
<------>mutex_lock(&gc2385->mutex);
<------>fi->interval = mode->max_fps;
<------>mutex_unlock(&gc2385->mutex);
<------>return 0;
}
static void gc2385_get_module_inf(struct gc2385 *gc2385,
<------><------><------><------> struct rkmodule_inf *inf)
{
<------>memset(inf, 0, sizeof(*inf));
<------>strlcpy(inf->base.sensor, GC2385_NAME, sizeof(inf->base.sensor));
<------>strlcpy(inf->base.module, gc2385->module_name,
<------><------>sizeof(inf->base.module));
<------>strlcpy(inf->base.lens, gc2385->len_name, sizeof(inf->base.lens));
}
static long gc2385_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>long ret = 0;
<------>u32 stream = 0;
<------>switch (cmd) {
<------>case RKMODULE_GET_MODULE_INFO:
<------><------>gc2385_get_module_inf(gc2385, (struct rkmodule_inf *)arg);
<------><------>break;
<------>case RKMODULE_SET_QUICK_STREAM:
<------><------>stream = *((u32 *)arg);
<------><------>if (stream) {
<------><------><------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_SET_PAGE,
<------><------><------><------> GC2385_SET_PAGE_ONE);
<------><------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_CTRL_MODE,
<------><------><------><------> GC2385_MODE_STREAMING);
<------><------>} else {
<------><------><------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE);
<------><------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_CTRL_MODE, GC2385_MODE_SW_STANDBY);
<------><------>}
<------><------>break;
<------>default:
<------><------>ret = -ENOTTY;
<------><------>break;
<------>}
<------>return ret;
}
#ifdef CONFIG_COMPAT
static long gc2385_compat_ioctl32(struct v4l2_subdev *sd,
<------><------><------><------> unsigned int cmd, unsigned long arg)
{
<------>void __user *up = compat_ptr(arg);
<------>struct rkmodule_inf *inf;
<------>struct rkmodule_awb_cfg *cfg;
<------>long ret;
<------>u32 stream = 0;
<------>switch (cmd) {
<------>case RKMODULE_GET_MODULE_INFO:
<------><------>inf = kzalloc(sizeof(*inf), GFP_KERNEL);
<------><------>if (!inf) {
<------><------><------>ret = -ENOMEM;
<------><------><------>return ret;
<------><------>}
<------><------>ret = gc2385_ioctl(sd, cmd, inf);
<------><------>if (!ret)
<------><------><------>ret = copy_to_user(up, inf, sizeof(*inf));
<------><------>kfree(inf);
<------><------>break;
<------>case RKMODULE_AWB_CFG:
<------><------>cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
<------><------>if (!cfg) {
<------><------><------>ret = -ENOMEM;
<------><------><------>return ret;
<------><------>}
<------><------>ret = copy_from_user(cfg, up, sizeof(*cfg));
<------><------>if (!ret)
<------><------><------>ret = gc2385_ioctl(sd, cmd, cfg);
<------><------>kfree(cfg);
<------><------>break;
<------>case RKMODULE_SET_QUICK_STREAM:
<------><------>ret = copy_from_user(&stream, up, sizeof(u32));
<------><------>if (!ret)
<------><------><------>ret = gc2385_ioctl(sd, cmd, &stream);
<------><------>break;
<------>default:
<------><------>ret = -ENOIOCTLCMD;
<------><------>break;
<------>}
<------>return ret;
}
#endif
static int __gc2385_start_stream(struct gc2385 *gc2385)
{
<------>int ret;
<------>ret = gc2385_write_array(gc2385->client, gc2385->cur_mode->reg_list);
<------>if (ret)
<------><------>return ret;
<------>/* In case these controls are set before streaming */
<------>mutex_unlock(&gc2385->mutex);
<------>ret = v4l2_ctrl_handler_setup(&gc2385->ctrl_handler);
<------>mutex_lock(&gc2385->mutex);
<------>if (ret)
<------><------>return ret;
<------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_SET_PAGE,
<------><------><------><------> GC2385_SET_PAGE_ONE);
<------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------> GC2385_REG_CTRL_MODE,
<------><------><------><------> GC2385_MODE_STREAMING);
<------>return ret;
}
static int __gc2385_stop_stream(struct gc2385 *gc2385)
{
<------>int ret;
<------>ret = gc2385_write_reg(gc2385->client,
<------><------>GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE);
<------>ret |= gc2385_write_reg(gc2385->client,
<------><------>GC2385_REG_CTRL_MODE, GC2385_MODE_SW_STANDBY);
<------>return ret;
}
static int gc2385_s_stream(struct v4l2_subdev *sd, int on)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>struct i2c_client *client = gc2385->client;
<------>int ret = 0;
<------>mutex_lock(&gc2385->mutex);
<------>on = !!on;
<------>if (on == gc2385->streaming)
<------><------>goto unlock_and_return;
<------>if (on) {
<------><------>ret = pm_runtime_get_sync(&client->dev);
<------><------>if (ret < 0) {
<------><------><------>pm_runtime_put_noidle(&client->dev);
<------><------><------>goto unlock_and_return;
<------><------>}
<------><------>ret = __gc2385_start_stream(gc2385);
<------><------>if (ret) {
<------><------><------>v4l2_err(sd, "start stream failed while write regs\n");
<------><------><------>pm_runtime_put(&client->dev);
<------><------><------>goto unlock_and_return;
<------><------>}
<------>} else {
<------><------>__gc2385_stop_stream(gc2385);
<------><------>pm_runtime_put(&client->dev);
<------>}
<------>gc2385->streaming = on;
unlock_and_return:
<------>mutex_unlock(&gc2385->mutex);
<------>return ret;
}
static int gc2385_s_power(struct v4l2_subdev *sd, int on)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>struct i2c_client *client = gc2385->client;
<------>int ret = 0;
<------>mutex_lock(&gc2385->mutex);
<------>/* If the power state is not modified - no work to do. */
<------>if (gc2385->power_on == !!on)
<------><------>goto unlock_and_return;
<------>if (on) {
<------><------>ret = pm_runtime_get_sync(&client->dev);
<------><------>if (ret < 0) {
<------><------><------>pm_runtime_put_noidle(&client->dev);
<------><------><------>goto unlock_and_return;
<------><------>}
<------><------>ret = gc2385_write_array(gc2385->client, gc2385_global_regs);
<------><------>if (ret) {
<------><------><------>v4l2_err(sd, "could not set init registers\n");
<------><------><------>pm_runtime_put_noidle(&client->dev);
<------><------><------>goto unlock_and_return;
<------><------>}
<------><------>gc2385->power_on = true;
<------>} else {
<------><------>pm_runtime_put(&client->dev);
<------><------>gc2385->power_on = false;
<------>}
unlock_and_return:
<------>mutex_unlock(&gc2385->mutex);
<------>return ret;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 gc2385_cal_delay(u32 cycles)
{
<------>return DIV_ROUND_UP(cycles, GC2385_XVCLK_FREQ / 1000 / 1000);
}
static int __gc2385_power_on(struct gc2385 *gc2385)
{
<------>int ret;
<------>u32 delay_us;
<------>struct device *dev = &gc2385->client->dev;
<------>if (!IS_ERR_OR_NULL(gc2385->pins_default)) {
<------><------>ret = pinctrl_select_state(gc2385->pinctrl,
<------><------><------><------><------> gc2385->pins_default);
<------><------>if (ret < 0)
<------><------><------>dev_err(dev, "could not set pins\n");
<------>}
<------>ret = clk_set_rate(gc2385->xvclk, GC2385_XVCLK_FREQ);
<------>if (ret < 0)
<------><------>dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
<------>if (clk_get_rate(gc2385->xvclk) != GC2385_XVCLK_FREQ)
<------><------>dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
<------>ret = clk_prepare_enable(gc2385->xvclk);
<------>if (ret < 0) {
<------><------>dev_err(dev, "Failed to enable xvclk\n");
<------><------>return ret;
<------>}
<------>if (!IS_ERR(gc2385->reset_gpio))
<------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 1);
<------>ret = regulator_bulk_enable(GC2385_NUM_SUPPLIES, gc2385->supplies);
<------>if (ret < 0) {
<------><------>dev_err(dev, "Failed to enable regulators\n");
<------><------>goto disable_clk;
<------>}
<------>usleep_range(1000, 1100);
<------>if (!IS_ERR(gc2385->reset_gpio))
<------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 0);
<------>usleep_range(500, 1000);
<------>if (!IS_ERR(gc2385->pwdn_gpio))
<------><------>gpiod_set_value_cansleep(gc2385->pwdn_gpio, 1);
<------>/* 8192 cycles prior to first SCCB transaction */
<------>delay_us = gc2385_cal_delay(8192);
<------>usleep_range(delay_us, delay_us * 2);
<------>return 0;
disable_clk:
<------>clk_disable_unprepare(gc2385->xvclk);
<------>return ret;
}
static void __gc2385_power_off(struct gc2385 *gc2385)
{
<------>int ret = 0;
<------>if (!IS_ERR(gc2385->pwdn_gpio))
<------><------>gpiod_set_value_cansleep(gc2385->pwdn_gpio, 0);
<------>clk_disable_unprepare(gc2385->xvclk);
<------>if (!IS_ERR(gc2385->reset_gpio))
<------><------>gpiod_set_value_cansleep(gc2385->reset_gpio, 1);
<------>if (!IS_ERR_OR_NULL(gc2385->pins_sleep)) {
<------><------>ret = pinctrl_select_state(gc2385->pinctrl,
<------><------><------><------><------> gc2385->pins_sleep);
<------><------>if (ret < 0)
<------><------><------>dev_dbg(&gc2385->client->dev, "could not set pins\n");
<------>}
<------>regulator_bulk_disable(GC2385_NUM_SUPPLIES, gc2385->supplies);
}
static int gc2385_runtime_resume(struct device *dev)
{
<------>struct i2c_client *client = to_i2c_client(dev);
<------>struct v4l2_subdev *sd = i2c_get_clientdata(client);
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>return __gc2385_power_on(gc2385);
}
static int gc2385_runtime_suspend(struct device *dev)
{
<------>struct i2c_client *client = to_i2c_client(dev);
<------>struct v4l2_subdev *sd = i2c_get_clientdata(client);
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>__gc2385_power_off(gc2385);
<------>return 0;
}
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int gc2385_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>struct v4l2_mbus_framefmt *try_fmt =
<------><------><------><------>v4l2_subdev_get_try_format(sd, fh->pad, 0);
<------>const struct gc2385_mode *def_mode = &supported_modes[0];
<------>mutex_lock(&gc2385->mutex);
<------>/* Initialize try_fmt */
<------>try_fmt->width = def_mode->width;
<------>try_fmt->height = def_mode->height;
<------>try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
<------>try_fmt->field = V4L2_FIELD_NONE;
<------>mutex_unlock(&gc2385->mutex);
<------>/* No crop or compose */
<------>return 0;
}
#endif
static int gc2385_enum_frame_interval(struct v4l2_subdev *sd,
<------><------><------><------> struct v4l2_subdev_pad_config *cfg,
<------><------><------><------> struct v4l2_subdev_frame_interval_enum *fie)
{
<------>if (fie->index >= ARRAY_SIZE(supported_modes))
<------><------>return -EINVAL;
<------>if (fie->code != MEDIA_BUS_FMT_SBGGR10_1X10)
<------><------>return -EINVAL;
<------>fie->width = supported_modes[fie->index].width;
<------>fie->height = supported_modes[fie->index].height;
<------>fie->interval = supported_modes[fie->index].max_fps;
<------>return 0;
}
static int gc2385_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
<------><------><------><------>struct v4l2_mbus_config *config)
{
<------>u32 val = 0;
<------>val = 1 << (GC2385_LANES - 1) |
<------> V4L2_MBUS_CSI2_CHANNEL_0 |
<------> V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
<------>config->type = V4L2_MBUS_CSI2_DPHY;
<------>config->flags = val;
<------>return 0;
}
static const struct dev_pm_ops gc2385_pm_ops = {
<------>SET_RUNTIME_PM_OPS(gc2385_runtime_suspend,
<------><------><------> gc2385_runtime_resume, NULL)
};
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops gc2385_internal_ops = {
<------>.open = gc2385_open,
};
#endif
static const struct v4l2_subdev_core_ops gc2385_core_ops = {
<------>.s_power = gc2385_s_power,
<------>.ioctl = gc2385_ioctl,
#ifdef CONFIG_COMPAT
<------>.compat_ioctl32 = gc2385_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops gc2385_video_ops = {
<------>.s_stream = gc2385_s_stream,
<------>.g_frame_interval = gc2385_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops gc2385_pad_ops = {
<------>.enum_mbus_code = gc2385_enum_mbus_code,
<------>.enum_frame_size = gc2385_enum_frame_sizes,
<------>.enum_frame_interval = gc2385_enum_frame_interval,
<------>.get_fmt = gc2385_get_fmt,
<------>.set_fmt = gc2385_set_fmt,
<------>.get_mbus_config = gc2385_g_mbus_config,
};
static const struct v4l2_subdev_ops gc2385_subdev_ops = {
<------>.core = &gc2385_core_ops,
<------>.video = &gc2385_video_ops,
<------>.pad = &gc2385_pad_ops,
};
#define GC2385_ANALOG_GAIN_1 64 /*1.00x*/
#define GC2385_ANALOG_GAIN_2 92 // 1.43x
#define GC2385_ANALOG_GAIN_3 127 // 1.99x
#define GC2385_ANALOG_GAIN_4 183 // 2.86x
#define GC2385_ANALOG_GAIN_5 257 // 4.01x
#define GC2385_ANALOG_GAIN_6 369 // 5.76x
#define GC2385_ANALOG_GAIN_7 531 //8.30x
#define GC2385_ANALOG_GAIN_8 750 // 11.72x
#define GC2385_ANALOG_GAIN_9 1092 // 17.06x
static int gc2385_set_gain_reg(struct gc2385 *gc2385, u32 a_gain)
{
<------>int ret = 0;
<------>u32 temp = 0;
<------>ret = gc2385_write_reg(gc2385->client,
<------><------>GC2385_REG_SET_PAGE, GC2385_SET_PAGE_ONE);
<------>if (a_gain >= GC2385_ANALOG_GAIN_1 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_2) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x0);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_1;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_2 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_3) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------>GC2385_REG_AGAIN, 0x1);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_2;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_3 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_4) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x2);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_3;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_4 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_5) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa2);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x3);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_4;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_5 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_6) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x4);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_5;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_6 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_7) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x73);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x5);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_6;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_7 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_8) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x74);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x6);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_7;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else if (a_gain >= GC2385_ANALOG_GAIN_8 &&
<------><------>a_gain < GC2385_ANALOG_GAIN_9) {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x74);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa3);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x7);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_8;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>} else {
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x20, 0x75);
<------><------>ret |= gc2385_write_reg(gc2385->client, 0x22, 0xa4);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_AGAIN, 0x8);
<------><------>temp = 256 * a_gain / GC2385_ANALOG_GAIN_9;
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------>GC2385_REG_DGAIN_INT, (temp >> 8) & 0xff);
<------><------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------>GC2385_REG_DGAIN_FRAC, temp & 0xff);
<------>}
<------>return ret;
}
static int gc2385_set_ctrl(struct v4l2_ctrl *ctrl)
{
<------>struct gc2385 *gc2385 = container_of(ctrl->handler,
<------><------><------><------><------> struct gc2385, ctrl_handler);
<------>struct i2c_client *client = gc2385->client;
<------>s64 max;
<------>int ret = 0;
<------>/* Propagate change of current control to all related controls */
<------>switch (ctrl->id) {
<------>case V4L2_CID_VBLANK:
<------><------>/* Update max exposure while meeting expected vblanking */
<------><------>max = gc2385->cur_mode->height + ctrl->val - 4;
<------><------>__v4l2_ctrl_modify_range(gc2385->exposure,
<------><------><------><------><------> gc2385->exposure->minimum, max,
<------><------><------><------><------> gc2385->exposure->step,
<------><------><------><------><------> gc2385->exposure->default_value);
<------><------>break;
<------>}
<------>if (!pm_runtime_get_if_in_use(&client->dev))
<------><------>return 0;
<------>switch (ctrl->id) {
<------>case V4L2_CID_EXPOSURE:
<------><------>/* 4 least significant bits of expsoure are fractional part */
<------><------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_SET_PAGE,
<------><------><------><------><------>GC2385_SET_PAGE_ONE);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_EXPOSURE_H,
<------><------><------><------><------>GC2385_FETCH_HIGH_BYTE_EXP(ctrl->val));
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_EXPOSURE_L,
<------><------><------><------><------>GC2385_FETCH_LOW_BYTE_EXP(ctrl->val));
<------><------>break;
<------>case V4L2_CID_ANALOGUE_GAIN:
<------><------>ret = gc2385_set_gain_reg(gc2385, ctrl->val);
<------><------>break;
<------>case V4L2_CID_VBLANK:
<------><------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_SET_PAGE,
<------><------><------><------><------>GC2385_SET_PAGE_ONE);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_VTS_H,
<------><------><------><------><------>((ctrl->val - 32) >> 8) & 0xff);
<------><------>ret |= gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_VTS_L,
<------><------><------><------><------>(ctrl->val - 32) & 0xff);
<------><------>break;
<------>default:
<------><------>dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
<------><------><------> __func__, ctrl->id, ctrl->val);
<------><------>break;
<------>}
<------>pm_runtime_put(&client->dev);
<------>return ret;
}
static const struct v4l2_ctrl_ops gc2385_ctrl_ops = {
<------>.s_ctrl = gc2385_set_ctrl,
};
static int gc2385_initialize_controls(struct gc2385 *gc2385)
{
<------>const struct gc2385_mode *mode;
<------>struct v4l2_ctrl_handler *handler;
<------>struct v4l2_ctrl *ctrl;
<------>s64 exposure_max, vblank_def;
<------>u32 h_blank;
<------>int ret;
<------>handler = &gc2385->ctrl_handler;
<------>mode = gc2385->cur_mode;
<------>ret = v4l2_ctrl_handler_init(handler, 8);
<------>if (ret)
<------><------>return ret;
<------>handler->lock = &gc2385->mutex;
<------>ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
<------><------><------><------> 0, 0, link_freq_menu_items);
<------>if (ctrl)
<------><------>ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
<------>v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
<------><------><------> 0, GC2385_PIXEL_RATE, 1, GC2385_PIXEL_RATE);
<------>h_blank = mode->hts_def - mode->width;
<------>gc2385->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
<------><------><------><------>h_blank, h_blank, 1, h_blank);
<------>if (gc2385->hblank)
<------><------>gc2385->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
<------>vblank_def = mode->vts_def - mode->height;
<------>gc2385->vblank = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops,
<------><------><------><------>V4L2_CID_VBLANK, vblank_def,
<------><------><------><------>GC2385_VTS_MAX - mode->height,
<------><------><------><------>1, vblank_def);
<------>exposure_max = mode->vts_def - 4;
<------>gc2385->exposure = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops,
<------><------><------><------>V4L2_CID_EXPOSURE, GC2385_EXPOSURE_MIN,
<------><------><------><------>exposure_max, GC2385_EXPOSURE_STEP,
<------><------><------><------>mode->exp_def);
<------>gc2385->anal_gain = v4l2_ctrl_new_std(handler, &gc2385_ctrl_ops,
<------><------><------><------>V4L2_CID_ANALOGUE_GAIN, GC2385_GAIN_MIN,
<------><------><------><------>GC2385_GAIN_MAX, GC2385_GAIN_STEP,
<------><------><------><------>GC2385_GAIN_DEFAULT);
<------>if (handler->error) {
<------><------>ret = handler->error;
<------><------>dev_err(&gc2385->client->dev,
<------><------><------>"Failed to init controls(%d)\n", ret);
<------><------>goto err_free_handler;
<------>}
<------>gc2385->subdev.ctrl_handler = handler;
<------>return 0;
err_free_handler:
<------>v4l2_ctrl_handler_free(handler);
<------>return ret;
}
static int gc2385_check_sensor_id(struct gc2385 *gc2385,
<------><------><------><------> struct i2c_client *client)
{
<------>struct device *dev = &gc2385->client->dev;
<------>u16 id = 0;
<------>u8 reg_H = 0;
<------>u8 reg_L = 0;
<------>int ret;
<------>ret = gc2385_write_reg(gc2385->client,
<------><------><------><------><------>GC2385_REG_SET_PAGE,
<------><------><------><------><------>GC2385_SET_PAGE_ONE);
<------>ret |= gc2385_read_reg(client, GC2385_REG_CHIP_ID_H, &reg_H);
<------>ret |= gc2385_read_reg(client, GC2385_REG_CHIP_ID_L, &reg_L);
<------>id = ((reg_H << 8) & 0xff00) | (reg_L & 0xff);
<------>if (id != CHIP_ID) {
<------><------>dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
<------><------>return -ENODEV;
<------>}
<------>return ret;
}
static int gc2385_configure_regulators(struct gc2385 *gc2385)
{
<------>unsigned int i;
<------>for (i = 0; i < GC2385_NUM_SUPPLIES; i++)
<------><------>gc2385->supplies[i].supply = gc2385_supply_names[i];
<------>return devm_regulator_bulk_get(&gc2385->client->dev,
<------><------><------><------> GC2385_NUM_SUPPLIES,
<------><------><------><------> gc2385->supplies);
}
static int gc2385_probe(struct i2c_client *client,
<------><------><------> const struct i2c_device_id *id)
{
<------>struct device *dev = &client->dev;
<------>struct device_node *node = dev->of_node;
<------>struct gc2385 *gc2385;
<------>struct v4l2_subdev *sd;
<------>char facing[2];
<------>int ret;
<------>dev_info(dev, "driver version: %02x.%02x.%02x",
<------><------>DRIVER_VERSION >> 16,
<------><------>(DRIVER_VERSION & 0xff00) >> 8,
<------><------>DRIVER_VERSION & 0x00ff);
<------>gc2385 = devm_kzalloc(dev, sizeof(*gc2385), GFP_KERNEL);
<------>if (!gc2385)
<------><------>return -ENOMEM;
<------>ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
<------><------><------><------> &gc2385->module_index);
<------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
<------><------><------><------> &gc2385->module_facing);
<------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
<------><------><------><------> &gc2385->module_name);
<------>ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
<------><------><------><------> &gc2385->len_name);
<------>if (ret) {
<------><------>dev_err(dev, "could not get module information!\n");
<------><------>return -EINVAL;
<------>}
<------>gc2385->client = client;
<------>gc2385->cur_mode = &supported_modes[0];
<------>gc2385->xvclk = devm_clk_get(dev, "xvclk");
<------>if (IS_ERR(gc2385->xvclk)) {
<------><------>dev_err(dev, "Failed to get xvclk\n");
<------><------>return -EINVAL;
<------>}
<------>gc2385->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
<------>if (IS_ERR(gc2385->reset_gpio))
<------><------>dev_warn(dev, "Failed to get reset-gpios\n");
<------>gc2385->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
<------>if (IS_ERR(gc2385->pwdn_gpio))
<------><------>dev_warn(dev, "Failed to get pwdn-gpios\n");
<------>ret = gc2385_configure_regulators(gc2385);
<------>if (ret) {
<------><------>dev_err(dev, "Failed to get power regulators\n");
<------><------>return ret;
<------>}
<------>gc2385->pinctrl = devm_pinctrl_get(dev);
<------>if (!IS_ERR(gc2385->pinctrl)) {
<------><------>gc2385->pins_default =
<------><------><------>pinctrl_lookup_state(gc2385->pinctrl,
<------><------><------><------><------> OF_CAMERA_PINCTRL_STATE_DEFAULT);
<------><------>if (IS_ERR(gc2385->pins_default))
<------><------><------>dev_err(dev, "could not get default pinstate\n");
<------><------>gc2385->pins_sleep =
<------><------><------>pinctrl_lookup_state(gc2385->pinctrl,
<------><------><------><------><------> OF_CAMERA_PINCTRL_STATE_SLEEP);
<------><------>if (IS_ERR(gc2385->pins_sleep))
<------><------><------>dev_err(dev, "could not get sleep pinstate\n");
<------>}
<------>mutex_init(&gc2385->mutex);
<------>sd = &gc2385->subdev;
<------>v4l2_i2c_subdev_init(sd, client, &gc2385_subdev_ops);
<------>ret = gc2385_initialize_controls(gc2385);
<------>if (ret)
<------><------>goto err_destroy_mutex;
<------>ret = __gc2385_power_on(gc2385);
<------>if (ret)
<------><------>goto err_free_handler;
<------>ret = gc2385_check_sensor_id(gc2385, client);
<------>if (ret)
<------><------>goto err_power_off;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
<------>sd->internal_ops = &gc2385_internal_ops;
<------>sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
<------><------> V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
<------>gc2385->pad.flags = MEDIA_PAD_FL_SOURCE;
<------>sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
<------>ret = media_entity_pads_init(&sd->entity, 1, &gc2385->pad);
<------>if (ret < 0)
<------><------>goto err_power_off;
#endif
<------>memset(facing, 0, sizeof(facing));
<------>if (strcmp(gc2385->module_facing, "back") == 0)
<------><------>facing[0] = 'b';
<------>else
<------><------>facing[0] = 'f';
<------>snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
<------><------> gc2385->module_index, facing,
<------><------> GC2385_NAME, dev_name(sd->dev));
<------>ret = v4l2_async_register_subdev_sensor_common(sd);
<------>if (ret) {
<------><------>dev_err(dev, "v4l2 async register subdev failed\n");
<------><------>goto err_clean_entity;
<------>}
<------>pm_runtime_set_active(dev);
<------>pm_runtime_enable(dev);
<------>pm_runtime_idle(dev);
<------>return 0;
err_clean_entity:
#if defined(CONFIG_MEDIA_CONTROLLER)
<------>media_entity_cleanup(&sd->entity);
#endif
err_power_off:
<------>__gc2385_power_off(gc2385);
err_free_handler:
<------>v4l2_ctrl_handler_free(&gc2385->ctrl_handler);
err_destroy_mutex:
<------>mutex_destroy(&gc2385->mutex);
<------>return ret;
}
static int gc2385_remove(struct i2c_client *client)
{
<------>struct v4l2_subdev *sd = i2c_get_clientdata(client);
<------>struct gc2385 *gc2385 = to_gc2385(sd);
<------>v4l2_async_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
<------>media_entity_cleanup(&sd->entity);
#endif
<------>v4l2_ctrl_handler_free(&gc2385->ctrl_handler);
<------>mutex_destroy(&gc2385->mutex);
<------>pm_runtime_disable(&client->dev);
<------>if (!pm_runtime_status_suspended(&client->dev))
<------><------>__gc2385_power_off(gc2385);
<------>pm_runtime_set_suspended(&client->dev);
<------>return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id gc2385_of_match[] = {
<------>{ .compatible = "galaxycore,gc2385" },
<------>{},
};
MODULE_DEVICE_TABLE(of, gc2385_of_match);
#endif
static const struct i2c_device_id gc2385_match_id[] = {
<------>{ "galaxycore,gc2385", 0 },
<------>{ },
};
static struct i2c_driver gc2385_i2c_driver = {
<------>.driver = {
<------><------>.name = GC2385_NAME,
<------><------>.pm = &gc2385_pm_ops,
<------><------>.of_match_table = of_match_ptr(gc2385_of_match),
<------>},
<------>.probe = &gc2385_probe,
<------>.remove = &gc2385_remove,
<------>.id_table = gc2385_match_id,
};
static int __init sensor_mod_init(void)
{
<------>return i2c_add_driver(&gc2385_i2c_driver);
}
static void __exit sensor_mod_exit(void)
{
<------>i2c_del_driver(&gc2385_i2c_driver);
}
device_initcall_sync(sensor_mod_init);
module_exit(sensor_mod_exit);
MODULE_DESCRIPTION("GalaxyCore gc2385 sensor driver");
MODULE_LICENSE("GPL v2");