From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/drivers/media/i2c/sc2355.c | 1522 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 1,522 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/media/i2c/sc2355.c b/kernel/drivers/media/i2c/sc2355.c
new file mode 100644
index 0000000..680d279
--- /dev/null
+++ b/kernel/drivers/media/i2c/sc2355.c
@@ -0,0 +1,1522 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SC2355 driver
+ *
+ * Copyright (C) 2023 Rockchip Electronics Co., Ltd.
+ * V0.1.0: MIPI is ok.
+ */
+
+#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/slab.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, 0x00)
+#ifndef V4L2_CID_DIGITAL_GAIN
+#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
+#endif
+
+#define MIPI_FREQ_180M 180000000
+#define MIPI_FREQ_360M 360000000
+
+#define PIXEL_RATE_WITH_180M (MIPI_FREQ_180M * 2 / 10)
+#define PIXEL_RATE_WITH_360M (MIPI_FREQ_360M * 2 / 10)
+
+#define SC2355_XVCLK_FREQ 24000000
+
+#define CHIP_ID 0xeb2c
+#define SC2355_REG_CHIP_ID 0x3107
+
+#define SC2355_REG_CTRL_MODE 0x0100
+#define SC2355_MODE_SW_STANDBY 0x0
+#define SC2355_MODE_STREAMING BIT(0)
+
+#define SC2355_REG_EXPOSURE 0x3e01
+#define SC2355_EXPOSURE_MIN 6
+#define SC2355_EXPOSURE_STEP 1
+#define SC2355_VTS_MAX 0xffff
+
+#define SC2355_REG_COARSE_AGAIN 0x3e09
+
+#define ANALOG_GAIN_MIN 0x01
+#define ANALOG_GAIN_MAX 0xF8
+#define ANALOG_GAIN_STEP 1
+#define ANALOG_GAIN_DEFAULT 0x1f
+
+#define SC2355_REG_TEST_PATTERN 0x4501
+#define SC2355_TEST_PATTERN_ENABLE 0xcc
+#define SC2355_TEST_PATTERN_DISABLE 0xc4
+
+#define SC2355_REG_VTS 0x320e
+
+#define REG_NULL 0xFFFF
+
+#define SC2355_REG_VALUE_08BIT 1
+#define SC2355_REG_VALUE_16BIT 2
+#define SC2355_REG_VALUE_24BIT 3
+
+#define SC2355_NAME "sc2355"
+
+#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default"
+#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep"
+
+#define SC2355_FETCH_3RD_BYTE_EXP(VAL) (((VAL) >> 16) & 0xF) /* 4 Bits */
+#define SC2355_FETCH_2ND_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF) /* 8 Bits */
+#define SC2355_FETCH_1ST_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 4 Bits */
+
+//fps set
+#define SC2355_FPS (20)
+
+//default exposure
+#define EXP_DEFAULT_TIME_US (8000)
+
+#define SC2355_VTS_30_FPS 0x4e2
+
+#define TIME_MS 1000
+#define SC2355_VTS (SC2355_VTS_30_FPS * 30 / SC2355_FPS)
+
+#define SC2355_TIME_TO_EXP_LINE_US(time_us) \
+ (uint16_t)(time_us/1000*30*SC2355_VTS_30_FPS/TIME_MS)
+
+#define SC2355_DEFAULT_EXP_REG \
+ SC2355_TIME_TO_EXP_LINE_US(EXP_DEFAULT_TIME_US)
+
+#define SC2355_FSYNC_RISING_MARGIN_TIME (600)//us
+#define SC2355_FSYNC_RISING_MARGIN \
+ SC2355_TIME_TO_EXP_LINE_US(SC2355_FSYNC_RISING_MARGIN_TIME)
+
+#define SC2355_EXP_REG_TO_FSYNC_RISING(exp_reg) \
+ (exp_reg - 15 + SC2355_FSYNC_RISING_MARGIN)
+
+#define SC2355_DEFAULT_FSYNC_RISING \
+ SC2355_EXP_REG_TO_FSYNC_RISING(SC2355_DEFAULT_EXP_REG)
+
+#define SC2355_DEFAULT_FSYNC_FALLING (0x4c0)
+#define SC2355_DEFAULT_FSYNC_FALLING_BINNING (0x4c0/2 + 2)
+#define SC2355_FSYNC_RISING_REG (0x3217)
+
+#define SLAVE_MODE
+//slave mode max exp time (RB_ROW)
+#define EXP_MAX_TIME_US (13*1000)
+#define SC2355_SLAVE_RB_ROW SC2355_TIME_TO_EXP_LINE_US(EXP_MAX_TIME_US)
+
+#define BINNING_MODE
+
+static const char *const SC2355_supply_names[] = {
+ "avdd", /* Analog power */
+ "dovdd", /* Digital I/O power */
+ "dvdd", /* Digital core power */
+};
+
+#define SC2355_NUM_SUPPLIES ARRAY_SIZE(SC2355_supply_names)
+
+enum {
+ LINK_FREQ_180M_INDEX,
+ LINK_FREQ_360M_INDEX,
+};
+
+struct regval {
+ u16 addr;
+ u8 val;
+};
+
+struct SC2355_mode {
+ u32 width;
+ u32 height;
+ struct v4l2_fract max_fps;
+ u32 hts_def;
+ u32 vts_def;
+ u32 exp_def;
+ u32 link_freq_index;
+ u64 pixel_rate;
+ const struct regval *reg_list;
+ u32 lanes;
+ u32 bus_fmt;
+};
+
+struct SC2355 {
+ struct i2c_client *client;
+ struct clk *xvclk;
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *pwdn_gpio;
+ struct regulator_bulk_data supplies[SC2355_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 v4l2_ctrl *test_pattern;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *link_freq;
+ struct mutex mutex;
+ struct v4l2_fract cur_fps;
+ u32 cur_vts;
+ bool streaming;
+ bool power_on;
+ const struct SC2355_mode *cur_mode;
+ u32 module_index;
+ const char *module_facing;
+ const char *module_name;
+ const char *len_name;
+};
+
+#define to_SC2355(sd) container_of(sd, struct SC2355, subdev)
+
+/*
+ * Xclk 24Mhz
+ * Pclk 72Mhz
+ * linelength ()
+ * framelength ()
+ * grabwindow_width 800
+ * grabwindow_height 600
+ * mipi 1 lane
+ * max_framerate 30fps
+ * mipi_datarate per lane 360Mbps
+ */
+static const struct regval SC2355_1lane_10bit_360Mbps_800x600_30fps_regs[] = {
+ {0x0103,0x01},
+ {0x0100,0x00},
+ {0x36e9,0x80},
+ {0x36ea,0x0f},
+ {0x36eb,0x24},
+ {0x36ed,0x14},
+ {0x36e9,0x01},
+ {0x301f,0x0c},
+ {0x303f,0x82},
+ {0x3208,0x03},
+ {0x3209,0x20},
+ {0x320a,0x02},
+ {0x320b,0x58},
+ {0x3211,0x02},
+ {0x3213,0x02},
+ {0x3215,0x31},
+ {0x3220,0x01},
+ {0x3248,0x02},
+ {0x3253,0x0a},
+ {0x3301,0xff},
+ {0x3302,0xff},
+ {0x3303,0x10},
+ {0x3306,0x28},
+ {0x3307,0x02},
+ {0x330a,0x00},
+ {0x330b,0xb0},
+ {0x3318,0x02},
+ {0x3320,0x06},
+ {0x3321,0x02},
+ {0x3326,0x12},
+ {0x3327,0x0e},
+ {0x3328,0x03},
+ {0x3329,0x0f},
+ {0x3364,0x4f},
+ {0x33b3,0x40},
+ {0x33f9,0x2c},
+ {0x33fb,0x38},
+ {0x33fc,0x0f},
+ {0x33fd,0x1f},
+ {0x349f,0x03},
+ {0x34a6,0x01},
+ {0x34a7,0x1f},
+ {0x34a8,0x40},
+ {0x34a9,0x30},
+ {0x34ab,0xa6},
+ {0x34ad,0xa6},
+ {0x3622,0x60},
+ {0x3623,0x40},
+ {0x3624,0x61},
+ {0x3625,0x08},
+ {0x3626,0x03},
+ {0x3630,0xa8},
+ {0x3631,0x84},
+ {0x3632,0x90},
+ {0x3633,0x43},
+ {0x3634,0x09},
+ {0x3635,0x82},
+ {0x3636,0x48},
+ {0x3637,0xe4},
+ {0x3641,0x22},
+ {0x3670,0x0f},
+ {0x3674,0xc0},
+ {0x3675,0xc0},
+ {0x3676,0xc0},
+ {0x3677,0x86},
+ {0x3678,0x88},
+ {0x3679,0x8c},
+ {0x367c,0x01},
+ {0x367d,0x0f},
+ {0x367e,0x01},
+ {0x367f,0x0f},
+ {0x3690,0x63},
+ {0x3691,0x63},
+ {0x3692,0x73},
+ {0x369c,0x01},
+ {0x369d,0x1f},
+ {0x369e,0x8a},
+ {0x369f,0x9e},
+ {0x36a0,0xda},
+ {0x36a1,0x01},
+ {0x36a2,0x03},
+ {0x3900,0x0d},
+ {0x3904,0x04},
+ {0x3905,0x98},
+ {0x391b,0x81},
+ {0x391c,0x10},
+ {0x391d,0x19},
+ {0x3933,0x01},
+ {0x3934,0x82},
+ {0x3940,0x5d},
+ {0x3942,0x01},
+ {0x3943,0x82},
+ {0x3949,0xc8},
+ {0x394b,0x64},
+ {0x3952,0x02},
+ {0x3e00,0x00},
+ {0x3e01,0x4d},
+ {0x3e02,0xe0},
+ {0x4502,0x34},
+ {0x4509,0x30},
+ {0x450a,0x71},
+ {0x4819,0x09},
+ {0x481b,0x05},
+ {0x481d,0x13},
+ {0x481f,0x04},
+ {0x4821,0x0a},
+ {0x4823,0x05},
+ {0x4825,0x04},
+ {0x4827,0x05},
+ {0x4829,0x08},
+ {0x5000,0x46},
+ {0x5900,0xf1}, //fix noise
+ {0x5901,0x04},
+
+ //vts
+ {0x320e,(SC2355_VTS>>8)&0xff},
+ {0x320f,SC2355_VTS&0xff},
+
+ //exp
+ {0x3e00,SC2355_FETCH_3RD_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+ {0x3e01,SC2355_FETCH_2ND_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+ {0x3e02,SC2355_FETCH_1ST_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+
+ //[flip]
+ {0x3221,0x3 << 5},
+
+ //[gain=1]
+ {0x3e09,0x00},
+
+ //fsync
+#ifndef SLAVE_MODE
+ {0x300b,0x44},//FSYNC out
+ {0x3217,SC2355_DEFAULT_FSYNC_RISING},
+ {0x322e,(SC2355_DEFAULT_FSYNC_FALLING_BINNING>>8)&0xff},
+ {0x322f,SC2355_DEFAULT_FSYNC_FALLING_BINNING&0xff},
+#else
+ {0x3222, 0x01 << 1},//slave mode
+ {0x300a, 0x00 << 2},//input mode
+
+ {0x3230, (SC2355_SLAVE_RB_ROW >> 8)&0xff},
+ {0x3231, SC2355_SLAVE_RB_ROW & 0xff},
+#endif
+
+ {REG_NULL, 0x00},
+};
+
+
+/*
+ * Xclk 24Mhz
+ * Pclk 72Mhz
+ * linelength ()
+ * framelength ()
+ * grabwindow_width 1600
+ * grabwindow_height 1200
+ * mipi 1 lane
+ * max_framerate 30fps
+ */
+static const struct regval SC2355_1lane_10bit_1600x1200_30fps_regs[] = {
+ {0x0103,0x01},
+ {0x0100,0x00},
+
+ {0x301f,0x01},
+ {0x3248,0x02},
+ {0x3253,0x0a},
+ {0x3301,0xff},
+ {0x3302,0xff},
+ {0x3303,0x10},
+ {0x3306,0x28},
+ {0x3307,0x02},
+ {0x330a,0x00},
+ {0x330b,0xb0},
+ {0x3318,0x02},
+ {0x3320,0x06},
+ {0x3321,0x02},
+ {0x3326,0x12},
+ {0x3327,0x0e},
+ {0x3328,0x03},
+ {0x3329,0x0f},
+ {0x3364,0x4f},
+ {0x33b3,0x40},
+ {0x33f9,0x2c},
+ {0x33fb,0x38},
+ {0x33fc,0x0f},
+ {0x33fd,0x1f},
+ {0x349f,0x03},
+ {0x34a6,0x01},
+ {0x34a7,0x1f},
+ {0x34a8,0x40},
+ {0x34a9,0x30},
+ {0x34ab,0xa6},
+ {0x34ad,0xa6},
+ {0x3622,0x60},
+ {0x3623,0x40},
+ {0x3624,0x61},
+ {0x3625,0x08},
+ {0x3626,0x03},
+ {0x3630,0xa8},
+ {0x3631,0x84},
+ {0x3632,0x90},
+ {0x3633,0x43},
+ {0x3634,0x09},
+ {0x3635,0x82},
+ {0x3636,0x48},
+ {0x3637,0xe4},
+ {0x3641,0x22},
+ {0x3670,0x0f},
+ {0x3674,0xc0},
+ {0x3675,0xc0},
+ {0x3676,0xc0},
+ {0x3677,0x86},
+ {0x3678,0x88},
+ {0x3679,0x8c},
+ {0x367c,0x01},
+ {0x367d,0x0f},
+ {0x367e,0x01},
+ {0x367f,0x0f},
+ {0x3690,0x63},
+ {0x3691,0x63},
+ {0x3692,0x73},
+ {0x369c,0x01},
+ {0x369d,0x1f},
+ {0x369e,0x8a},
+ {0x369f,0x9e},
+ {0x36a0,0xda},
+ {0x36a1,0x01},
+ {0x36a2,0x03},
+ {0x36e9,0x01},
+ {0x36ea,0x0f},
+ {0x36eb,0x25},
+ {0x36ed,0x04},
+ {0x3900,0x0d},
+ {0x3904,0x06},
+ {0x3905,0x98},
+ {0x391b,0x81},
+ {0x391c,0x10},
+ {0x391d,0x19},
+ {0x3933,0x01},
+ {0x3934,0x82},
+ {0x3940,0x5d},
+ {0x3942,0x01},
+ {0x3943,0x82},
+ {0x3949,0xc8},
+ {0x394b,0x64},
+ {0x3952,0x02},
+
+ //vts
+ {0x320e,(SC2355_VTS>>8)&0xff},
+ {0x320f,SC2355_VTS&0xff},
+
+ {0x3e00, SC2355_FETCH_3RD_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+ {0x3e01, SC2355_FETCH_2ND_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+ {0x3e02, SC2355_FETCH_1ST_BYTE_EXP(SC2355_DEFAULT_EXP_REG)},
+ {0x4502,0x34},
+ {0x4509,0x30},
+ {0x450a,0x71},
+
+ //[flip]
+ {0x3221,0x3 << 5},
+ //[gain=2]
+ {0x3e09,0x01},
+
+#ifndef SLAVE_MODE
+ {0x300b,0x44},//FSYNC out
+ {0x3217,SC2355_DEFAULT_FSYNC_RISING},
+ {0x322e,(SC2355_DEFAULT_FSYNC_FALLING>>8)&0xff},
+ {0x322f,SC2355_DEFAULT_FSYNC_FALLING&0xff},
+#else
+ {0x3222, 0x01 << 1},//slave mode
+ {0x300a, 0x00 << 2},//input mode
+
+ {0x3230, (SC2355_SLAVE_RB_ROW >> 8)&0xff},//input mode
+ {0x3231, SC2355_SLAVE_RB_ROW & 0xff},//input mode
+#endif
+};
+
+static const struct SC2355_mode supported_modes[] = {
+#ifdef BINNING_MODE
+ {
+ .width = 800,
+ .height = 600,
+ .max_fps = {
+ .numerator = 10000,
+ .denominator = 300000,
+ },
+ .exp_def = SC2355_DEFAULT_EXP_REG,
+ .hts_def = 0x640,
+ .vts_def = SC2355_VTS,
+ .link_freq_index = LINK_FREQ_360M_INDEX,
+ .pixel_rate = PIXEL_RATE_WITH_360M,
+ .reg_list = SC2355_1lane_10bit_360Mbps_800x600_30fps_regs,
+ .lanes = 1,
+ .bus_fmt = MEDIA_BUS_FMT_Y10_1X10,
+ },
+#else
+ {
+ .width = 1600,
+ .height = 1200,
+ .max_fps = {
+ .numerator = 10000,
+ .denominator = 300000,
+ },
+ .exp_def = SC2355_DEFAULT_EXP_REG,
+ .hts_def = 0x640,
+ .vts_def = SC2355_VTS,
+ .link_freq_index = LINK_FREQ_360M_INDEX,
+ .pixel_rate = PIXEL_RATE_WITH_360M,
+ .reg_list = SC2355_1lane_10bit_1600x1200_30fps_regs,
+ .lanes = 1,
+ .bus_fmt = MEDIA_BUS_FMT_Y10_1X10,
+ },
+#endif
+};
+
+static const char *const SC2355_test_pattern_menu[] = {
+ "Disabled",
+ "Vertical Color Bar Type 1",
+ "Vertical Color Bar Type 2",
+ "Vertical Color Bar Type 3",
+ "Vertical Color Bar Type 4"
+};
+
+static const s64 link_freq_menu_items[] = {
+ MIPI_FREQ_180M,
+ MIPI_FREQ_360M,
+};
+
+/* Write registers up to 4 at a time */
+static int SC2355_write_reg(struct i2c_client *client,
+ u16 reg, u32 len, u32 val)
+{
+ u32 buf_i, val_i;
+ u8 buf[6];
+ u8 *val_p;
+ __be32 val_be;
+ u32 ret;
+
+ if (len > 4)
+ return -EINVAL;
+
+ buf[0] = reg >> 8;
+ buf[1] = reg & 0xff;
+
+ val_be = cpu_to_be32(val);
+ val_p = (u8 *)&val_be;
+ buf_i = 2;
+ val_i = 4 - len;
+
+ while (val_i < 4)
+ buf[buf_i++] = val_p[val_i++];
+
+ ret = i2c_master_send(client, buf, len + 2);
+ if (ret != len + 2)
+ return -EIO;
+
+ return 0;
+}
+
+static int SC2355_write_array(struct i2c_client *client,
+ const struct regval *regs)
+{
+ u32 i;
+ int ret = 0;
+
+ for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) {
+ ret = SC2355_write_reg(client, regs[i].addr,
+ SC2355_REG_VALUE_08BIT, regs[i].val);
+ }
+
+ return ret;
+}
+
+/* Read registers up to 4 at a time */
+static int SC2355_read_reg(struct i2c_client *client,
+ u16 reg, unsigned int len, u32 *val)
+{
+ struct i2c_msg msgs[2];
+ u8 *data_be_p;
+ __be32 data_be = 0;
+ __be16 reg_addr_be = cpu_to_be16(reg);
+ int ret;
+
+ if (len > 4 || !len)
+ return -EINVAL;
+
+ data_be_p = (u8 *)&data_be;
+ /* Write register address */
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = 2;
+ msgs[0].buf = (u8 *)®_addr_be;
+
+ /* Read data from register */
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_be_p[4 - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ *val = be32_to_cpu(data_be);
+
+ return 0;
+}
+
+static int SC2355_get_reso_dist(const struct SC2355_mode *mode,
+ struct v4l2_mbus_framefmt *framefmt)
+{
+ return abs(mode->width - framefmt->width) +
+ abs(mode->height - framefmt->height);
+}
+
+static const struct SC2355_mode *
+SC2355_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 = SC2355_get_reso_dist(&supported_modes[i], framefmt);
+ if ((cur_best_fit_dist == -1 || dist < cur_best_fit_dist) &&
+ (supported_modes[i].bus_fmt == framefmt->code)) {
+ cur_best_fit_dist = dist;
+ cur_best_fit = i;
+ }
+ }
+ return &supported_modes[cur_best_fit];
+}
+
+static int SC2355_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ const struct SC2355_mode *mode;
+ s64 h_blank, vblank_def;
+
+ mutex_lock(&SC2355->mutex);
+
+ mode = SC2355_find_best_fit(fmt);
+ fmt->format.code = mode->bus_fmt;
+ 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(&SC2355->mutex);
+ return -ENOTTY;
+#endif
+ } else {
+ SC2355->cur_mode = mode;
+ h_blank = mode->hts_def - mode->width;
+ __v4l2_ctrl_modify_range(SC2355->hblank, h_blank,
+ h_blank, 1, h_blank);
+ vblank_def = mode->vts_def - mode->height;
+ __v4l2_ctrl_modify_range(SC2355->vblank, vblank_def,
+ SC2355_VTS_MAX - mode->height,
+ 1, vblank_def);
+ __v4l2_ctrl_s_ctrl_int64(SC2355->pixel_rate, mode->pixel_rate);
+ __v4l2_ctrl_s_ctrl(SC2355->link_freq, mode->link_freq_index);
+ SC2355->cur_vts = mode->vts_def;
+ SC2355->cur_fps = mode->max_fps;
+ }
+
+ mutex_unlock(&SC2355->mutex);
+
+ return 0;
+}
+
+static int SC2355_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ const struct SC2355_mode *mode = SC2355->cur_mode;
+
+ mutex_lock(&SC2355->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(&SC2355->mutex);
+ return -ENOTTY;
+#endif
+ } else {
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.code = mode->bus_fmt;
+ fmt->format.field = V4L2_FIELD_NONE;
+ }
+ mutex_unlock(&SC2355->mutex);
+
+ return 0;
+}
+
+static int SC2355_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+
+ if (code->index != 0)
+ return -EINVAL;
+ code->code = SC2355->cur_mode->bus_fmt;
+
+ return 0;
+}
+
+static int SC2355_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 != supported_modes[fse->index].bus_fmt)
+ 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 SC2355_enable_test_pattern(struct SC2355 *SC2355, u32 pattern)
+{
+ u32 val;
+
+ if (pattern)
+ val = (pattern - 1) | SC2355_TEST_PATTERN_ENABLE;
+ else
+ val = SC2355_TEST_PATTERN_DISABLE;
+
+ return SC2355_write_reg(SC2355->client, SC2355_REG_TEST_PATTERN,
+ SC2355_REG_VALUE_08BIT, val);
+}
+
+static void SC2355_get_module_inf(struct SC2355 *SC2355,
+ struct rkmodule_inf *inf)
+{
+ memset(inf, 0, sizeof(*inf));
+ strscpy(inf->base.sensor, SC2355_NAME, sizeof(inf->base.sensor));
+ strscpy(inf->base.module, SC2355->module_name,
+ sizeof(inf->base.module));
+ strscpy(inf->base.lens, SC2355->len_name, sizeof(inf->base.lens));
+}
+
+static long SC2355_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ long ret = 0;
+ u32 stream = 0;
+
+ switch (cmd) {
+ case RKMODULE_GET_MODULE_INFO:
+ SC2355_get_module_inf(SC2355, (struct rkmodule_inf *)arg);
+ break;
+ case RKMODULE_SET_QUICK_STREAM:
+
+ stream = *((u32 *)arg);
+
+ if (stream)
+ ret = SC2355_write_reg(SC2355->client, SC2355_REG_CTRL_MODE,
+ SC2355_REG_VALUE_08BIT, SC2355_MODE_STREAMING);
+ else
+ ret = SC2355_write_reg(SC2355->client, SC2355_REG_CTRL_MODE,
+ SC2355_REG_VALUE_08BIT, SC2355_MODE_SW_STANDBY);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ break;
+ }
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static long SC2355_compat_ioctl32(struct v4l2_subdev *sd,
+ unsigned int cmd, unsigned long arg)
+{
+ void __user *up = compat_ptr(arg);
+ struct rkmodule_inf *inf;
+ long ret = 0;
+ u32 stream = 0;
+
+ switch (cmd) {
+ case RKMODULE_GET_MODULE_INFO:
+ inf = kzalloc(sizeof(*inf), GFP_KERNEL);
+ if (!inf) {
+ ret = -ENOMEM;
+ return ret;
+ }
+
+ ret = SC2355_ioctl(sd, cmd, inf);
+ if (!ret) {
+ ret = copy_to_user(up, inf, sizeof(*inf));
+ if (ret)
+ ret = -EFAULT;
+ }
+ kfree(inf);
+ break;
+ case RKMODULE_SET_QUICK_STREAM:
+ if (copy_from_user(&stream, up, sizeof(u32)))
+ return -EFAULT;
+
+ ret = SC2355_ioctl(sd, cmd, &stream);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ break;
+ }
+
+ return ret;
+}
+#endif
+
+static int SC2355_set_ctrl_gain(struct SC2355 *SC2355, u32 a_gain)
+{
+ int ret = 0;
+
+ if (a_gain > 1)
+ a_gain = ((a_gain + 1) >> 1) << 1;
+ a_gain -=1;
+
+ ret |= SC2355_write_reg(SC2355->client,
+ SC2355_REG_COARSE_AGAIN,
+ SC2355_REG_VALUE_08BIT,
+ a_gain);
+
+ return ret;
+}
+
+
+static int __SC2355_start_stream(struct SC2355 *SC2355)
+{
+ int ret;
+
+ ret = SC2355_write_array(SC2355->client, SC2355->cur_mode->reg_list);
+ if (ret)
+ return ret;
+
+ /* In case these controls are set before streaming */
+ mutex_unlock(&SC2355->mutex);
+ ret = v4l2_ctrl_handler_setup(&SC2355->ctrl_handler);
+ mutex_lock(&SC2355->mutex);
+ if (ret)
+ return ret;
+
+ ret = SC2355_write_reg(SC2355->client, SC2355_REG_CTRL_MODE,
+ SC2355_REG_VALUE_08BIT, SC2355_MODE_STREAMING);
+
+ return ret;
+}
+
+static int __SC2355_stop_stream(struct SC2355 *SC2355)
+{
+ return SC2355_write_reg(SC2355->client, SC2355_REG_CTRL_MODE,
+ SC2355_REG_VALUE_08BIT, SC2355_MODE_SW_STANDBY);
+}
+
+static int SC2355_s_stream(struct v4l2_subdev *sd, int on)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ struct i2c_client *client = SC2355->client;
+ unsigned int fps;
+ int ret = 0;
+
+ mutex_lock(&SC2355->mutex);
+ on = !!on;
+ if (on == SC2355->streaming)
+ goto unlock_and_return;
+
+ fps = DIV_ROUND_CLOSEST(SC2355->cur_mode->max_fps.denominator,
+ SC2355->cur_mode->max_fps.numerator);
+
+ dev_info(&SC2355->client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
+ SC2355->cur_mode->width,
+ SC2355->cur_mode->height,
+ fps);
+
+ if (on) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ goto unlock_and_return;
+ }
+
+ ret = __SC2355_start_stream(SC2355);
+ if (ret) {
+ v4l2_err(sd, "start stream failed while write regs\n");
+ pm_runtime_put(&client->dev);
+ goto unlock_and_return;
+ }
+ } else {
+ __SC2355_stop_stream(SC2355);
+ pm_runtime_put(&client->dev);
+ }
+
+ SC2355->streaming = on;
+
+unlock_and_return:
+ mutex_unlock(&SC2355->mutex);
+
+ return ret;
+}
+
+static int SC2355_s_power(struct v4l2_subdev *sd, int on)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ struct i2c_client *client = SC2355->client;
+ int ret = 0;
+
+ mutex_lock(&SC2355->mutex);
+
+ /* If the power state is not modified - no work to do. */
+ if (SC2355->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;
+ }
+ SC2355->power_on = true;
+ } else {
+ pm_runtime_put(&client->dev);
+ SC2355->power_on = false;
+ }
+
+unlock_and_return:
+ mutex_unlock(&SC2355->mutex);
+
+ return ret;
+}
+
+static int SC2355_g_frame_interval(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *fi)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ const struct SC2355_mode *mode = SC2355->cur_mode;
+
+ if (SC2355->streaming)
+ fi->interval = SC2355->cur_fps;
+ else
+ fi->interval = mode->max_fps;
+
+ return 0;
+}
+
+/* Calculate the delay in us by clock rate and clock cycles */
+static inline u32 SC2355_cal_delay(u32 cycles)
+{
+ return DIV_ROUND_UP(cycles, SC2355_XVCLK_FREQ / 1000 / 1000);
+}
+
+static int __SC2355_power_on(struct SC2355 *SC2355)
+{
+ int ret;
+ u32 delay_us;
+ struct device *dev = &SC2355->client->dev;
+
+ if (!IS_ERR_OR_NULL(SC2355->pins_default)) {
+ ret = pinctrl_select_state(SC2355->pinctrl,
+ SC2355->pins_default);
+ if (ret < 0)
+ dev_err(dev, "could not set pins\n");
+ }
+
+ ret = clk_set_rate(SC2355->xvclk, SC2355_XVCLK_FREQ);
+ if (ret < 0)
+ dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
+ if (clk_get_rate(SC2355->xvclk) != SC2355_XVCLK_FREQ)
+ dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
+ ret = clk_prepare_enable(SC2355->xvclk);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable xvclk\n");
+ return ret;
+ }
+
+ ret = regulator_bulk_enable(SC2355_NUM_SUPPLIES, SC2355->supplies);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable regulators\n");
+ goto disable_clk;
+ }
+
+ if (!IS_ERR(SC2355->reset_gpio))
+ gpiod_set_value_cansleep(SC2355->reset_gpio, 1);
+
+ usleep_range(1000, 2000);
+
+ if (!IS_ERR(SC2355->pwdn_gpio))
+ gpiod_set_value_cansleep(SC2355->pwdn_gpio, 1);
+
+ if (!IS_ERR(SC2355->reset_gpio))
+ gpiod_set_value_cansleep(SC2355->reset_gpio, 0);
+
+ /* 8192 cycles prior to first SCCB transaction */
+ delay_us = SC2355_cal_delay(8192);
+ usleep_range(delay_us, delay_us * 2);
+
+ return 0;
+
+disable_clk:
+ clk_disable_unprepare(SC2355->xvclk);
+
+ return ret;
+}
+
+static void __SC2355_power_off(struct SC2355 *SC2355)
+{
+ int ret;
+
+ if (!IS_ERR(SC2355->reset_gpio))
+ gpiod_set_value_cansleep(SC2355->reset_gpio, 1);
+
+ if (!IS_ERR(SC2355->pwdn_gpio))
+ gpiod_set_value_cansleep(SC2355->pwdn_gpio, 0);
+ clk_disable_unprepare(SC2355->xvclk);
+ if (!IS_ERR_OR_NULL(SC2355->pins_sleep)) {
+ ret = pinctrl_select_state(SC2355->pinctrl,
+ SC2355->pins_sleep);
+ if (ret < 0)
+ dev_dbg(&SC2355->client->dev, "could not set pins\n");
+ }
+ regulator_bulk_disable(SC2355_NUM_SUPPLIES, SC2355->supplies);
+}
+
+static int SC2355_runtime_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct SC2355 *SC2355 = to_SC2355(sd);
+
+ return __SC2355_power_on(SC2355);
+}
+
+static int SC2355_runtime_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct SC2355 *SC2355 = to_SC2355(sd);
+
+ __SC2355_power_off(SC2355);
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+static int SC2355_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct SC2355 *SC2355 = to_SC2355(sd);
+ struct v4l2_mbus_framefmt *try_fmt =
+ v4l2_subdev_get_try_format(sd, fh->pad, 0);
+ const struct SC2355_mode *def_mode = &supported_modes[0];
+
+ mutex_lock(&SC2355->mutex);
+ /* Initialize try_fmt */
+ try_fmt->width = def_mode->width;
+ try_fmt->height = def_mode->height;
+ try_fmt->code = def_mode->bus_fmt;
+ try_fmt->field = V4L2_FIELD_NONE;
+
+ mutex_unlock(&SC2355->mutex);
+ /* No crop or compose */
+
+ return 0;
+}
+#endif
+
+static int SC2355_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;
+
+ fie->code = supported_modes[fie->index].bus_fmt;
+ 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 SC2355_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id,
+ struct v4l2_mbus_config *config)
+{
+ u32 val = 0;
+ struct SC2355 *SC2355 = to_SC2355(sd);
+
+ val = 1 << (SC2355->cur_mode->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 SC2355_pm_ops = {
+ SET_RUNTIME_PM_OPS(SC2355_runtime_suspend,
+ SC2355_runtime_resume, NULL)
+};
+
+#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+static const struct v4l2_subdev_internal_ops SC2355_internal_ops = {
+ .open = SC2355_open,
+};
+#endif
+
+static const struct v4l2_subdev_core_ops SC2355_core_ops = {
+ .s_power = SC2355_s_power,
+ .ioctl = SC2355_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl32 = SC2355_compat_ioctl32,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops SC2355_video_ops = {
+ .s_stream = SC2355_s_stream,
+ .g_frame_interval = SC2355_g_frame_interval,
+};
+
+static const struct v4l2_subdev_pad_ops SC2355_pad_ops = {
+ .enum_mbus_code = SC2355_enum_mbus_code,
+ .enum_frame_size = SC2355_enum_frame_sizes,
+ .enum_frame_interval = SC2355_enum_frame_interval,
+ .get_fmt = SC2355_get_fmt,
+ .set_fmt = SC2355_set_fmt,
+ .get_mbus_config = SC2355_g_mbus_config,
+};
+
+static const struct v4l2_subdev_ops SC2355_subdev_ops = {
+ .core = &SC2355_core_ops,
+ .video = &SC2355_video_ops,
+ .pad = &SC2355_pad_ops,
+};
+
+static void SC2355_modify_fps_info(struct SC2355 *SC2355)
+{
+ const struct SC2355_mode *mode = SC2355->cur_mode;
+
+ SC2355->cur_fps.denominator = mode->max_fps.denominator * SC2355->cur_vts /
+ mode->vts_def;
+}
+
+static int SC2355_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct SC2355 *SC2355 = container_of(ctrl->handler,
+ struct SC2355, ctrl_handler);
+ struct i2c_client *client = SC2355->client;
+ s64 max;
+ int ret = 0;
+#ifndef SLAVE_MODE
+ u16 rising_reg;
+#endif
+
+ /* Propagate change of current control to all related controls */
+ switch (ctrl->id) {
+ case V4L2_CID_VBLANK:
+ /* Update max exposure while meeting expected vblanking */
+ max = SC2355->cur_mode->height + ctrl->val - 6;
+ __v4l2_ctrl_modify_range(SC2355->exposure,
+ SC2355->exposure->minimum, max,
+ SC2355->exposure->step,
+ SC2355->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 = SC2355_write_reg(SC2355->client, SC2355_REG_EXPOSURE,
+ SC2355_REG_VALUE_16BIT, ctrl->val << 4);
+
+#ifndef SLAVE_MODE
+ /* set fsync rising */
+ rising_reg = SC2355_EXP_REG_TO_FSYNC_RISING(ctrl->val);
+ if (rising_reg > 0xff) {
+ rising_reg = 0xff;
+ dev_warn(&client->dev,
+ "error: rising reg exceed max val 0xff.\n");
+ }
+
+ dev_info(&client->dev, "rising: reg:%d\n", rising_reg);
+
+ ret |= SC2355_write_reg(SC2355->client, SC2355_FSYNC_RISING_REG,
+ SC2355_REG_VALUE_08BIT, rising_reg);
+#endif
+
+ break;
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = SC2355_set_ctrl_gain(SC2355, ctrl->val);
+ break;
+ case V4L2_CID_VBLANK:
+ ret = SC2355_write_reg(SC2355->client, SC2355_REG_VTS,
+ SC2355_REG_VALUE_16BIT,
+ ctrl->val + SC2355->cur_mode->height);
+ if (!ret)
+ SC2355->cur_vts = ctrl->val + SC2355->cur_mode->height;
+ if (SC2355->cur_vts != SC2355->cur_mode->vts_def)
+ SC2355_modify_fps_info(SC2355);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ ret = SC2355_enable_test_pattern(SC2355, ctrl->val);
+ 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 SC2355_ctrl_ops = {
+ .s_ctrl = SC2355_set_ctrl,
+};
+
+static int SC2355_initialize_controls(struct SC2355 *SC2355)
+{
+ const struct SC2355_mode *mode;
+ struct v4l2_ctrl_handler *handler;
+ s64 exposure_max, vblank_def;
+ u32 h_blank;
+ int ret;
+
+ handler = &SC2355->ctrl_handler;
+ mode = SC2355->cur_mode;
+ ret = v4l2_ctrl_handler_init(handler, 8);
+ if (ret)
+ return ret;
+ handler->lock = &SC2355->mutex;
+
+ SC2355->link_freq = v4l2_ctrl_new_int_menu(handler,
+ NULL, V4L2_CID_LINK_FREQ,
+ ARRAY_SIZE(link_freq_menu_items) - 1, 0,
+ link_freq_menu_items);
+
+ SC2355->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
+ V4L2_CID_PIXEL_RATE,
+ 0, PIXEL_RATE_WITH_360M,
+ 1, mode->pixel_rate);
+
+ __v4l2_ctrl_s_ctrl(SC2355->link_freq, mode->pixel_rate);
+
+ h_blank = mode->hts_def - mode->width;
+ SC2355->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
+ h_blank, h_blank, 1, h_blank);
+ if (SC2355->hblank)
+ SC2355->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ vblank_def = mode->vts_def - mode->height;
+ SC2355->cur_vts = mode->vts_def;
+ SC2355->cur_fps = mode->max_fps;
+ SC2355->vblank = v4l2_ctrl_new_std(handler, &SC2355_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_def,
+ SC2355_VTS_MAX - mode->height,
+ 1, vblank_def);
+
+ exposure_max = mode->vts_def - 6;
+ SC2355->exposure = v4l2_ctrl_new_std(handler, &SC2355_ctrl_ops,
+ V4L2_CID_EXPOSURE, SC2355_EXPOSURE_MIN,
+ exposure_max, SC2355_EXPOSURE_STEP,
+ mode->exp_def);
+
+ SC2355->anal_gain = v4l2_ctrl_new_std(handler, &SC2355_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
+ ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
+ ANALOG_GAIN_DEFAULT);
+
+ SC2355->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
+ &SC2355_ctrl_ops, V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(SC2355_test_pattern_menu) - 1,
+ 0, 0, SC2355_test_pattern_menu);
+
+ if (handler->error) {
+ ret = handler->error;
+ dev_err(&SC2355->client->dev,
+ "Failed to init controls(%d)\n", ret);
+ goto err_free_handler;
+ }
+
+ SC2355->subdev.ctrl_handler = handler;
+
+ return 0;
+
+err_free_handler:
+ v4l2_ctrl_handler_free(handler);
+
+ return ret;
+}
+
+static int SC2355_check_sensor_id(struct SC2355 *SC2355,
+ struct i2c_client *client)
+{
+ struct device *dev = &SC2355->client->dev;
+ u32 id = 0;
+ int ret;
+
+ ret = SC2355_read_reg(client, SC2355_REG_CHIP_ID,
+ SC2355_REG_VALUE_16BIT, &id);
+ if (ret || id != CHIP_ID) {
+ dev_err(dev, "Unexpected sensor id(%04x), ret(%d)\n", id, ret);
+ return -ENODEV;
+ }
+
+ dev_info(dev, "Detected SC2355 CHIP ID = 0x%04x sensor\n", CHIP_ID);
+
+ return 0;
+}
+
+static int SC2355_configure_regulators(struct SC2355 *SC2355)
+{
+ unsigned int i;
+
+ for (i = 0; i < SC2355_NUM_SUPPLIES; i++)
+ SC2355->supplies[i].supply = SC2355_supply_names[i];
+
+ return devm_regulator_bulk_get(&SC2355->client->dev,
+ SC2355_NUM_SUPPLIES,
+ SC2355->supplies);
+}
+
+static int SC2355_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct device_node *node = dev->of_node;
+ struct SC2355 *SC2355;
+ 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);
+
+ SC2355 = devm_kzalloc(dev, sizeof(*SC2355), GFP_KERNEL);
+ if (!SC2355)
+ return -ENOMEM;
+
+ ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
+ &SC2355->module_index);
+ ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
+ &SC2355->module_facing);
+ ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
+ &SC2355->module_name);
+ ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
+ &SC2355->len_name);
+ if (ret) {
+ dev_err(dev, "could not get module information!\n");
+ return -EINVAL;
+ }
+ SC2355->client = client;
+ SC2355->cur_mode = &supported_modes[0];
+
+ SC2355->xvclk = devm_clk_get(dev, "xvclk");
+ if (IS_ERR(SC2355->xvclk)) {
+ dev_err(dev, "Failed to get xvclk\n");
+ return -EINVAL;
+ }
+
+ SC2355->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(SC2355->reset_gpio))
+ dev_warn(dev, "Failed to get reset-gpios\n");
+
+ SC2355->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
+ if (IS_ERR(SC2355->pwdn_gpio))
+ dev_warn(dev, "Failed to get pwdn-gpios\n");
+ ret = SC2355_configure_regulators(SC2355);
+ if (ret) {
+ dev_err(dev, "Failed to get power regulators\n");
+ return ret;
+ }
+
+ SC2355->pinctrl = devm_pinctrl_get(dev);
+ if (!IS_ERR(SC2355->pinctrl)) {
+ SC2355->pins_default =
+ pinctrl_lookup_state(SC2355->pinctrl,
+ OF_CAMERA_PINCTRL_STATE_DEFAULT);
+ if (IS_ERR(SC2355->pins_default))
+ dev_err(dev, "could not get default pinstate\n");
+
+ SC2355->pins_sleep =
+ pinctrl_lookup_state(SC2355->pinctrl,
+ OF_CAMERA_PINCTRL_STATE_SLEEP);
+ if (IS_ERR(SC2355->pins_sleep))
+ dev_err(dev, "could not get sleep pinstate\n");
+ }
+ mutex_init(&SC2355->mutex);
+
+ sd = &SC2355->subdev;
+ v4l2_i2c_subdev_init(sd, client, &SC2355_subdev_ops);
+ ret = SC2355_initialize_controls(SC2355);
+ if (ret)
+ goto err_destroy_mutex;
+
+ ret = __SC2355_power_on(SC2355);
+ if (ret)
+ goto err_free_handler;
+
+ ret = SC2355_check_sensor_id(SC2355, client);
+ if (ret)
+ goto err_power_off;
+
+#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ sd->internal_ops = &SC2355_internal_ops;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+ V4L2_SUBDEV_FL_HAS_EVENTS;
+#endif
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ SC2355->pad.flags = MEDIA_PAD_FL_SOURCE;
+ sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ ret = media_entity_pads_init(&sd->entity, 1, &SC2355->pad);
+ if (ret < 0)
+ goto err_power_off;
+#endif
+
+ memset(facing, 0, sizeof(facing));
+ if (strcmp(SC2355->module_facing, "back") == 0)
+ facing[0] = 'b';
+ else
+ facing[0] = 'f';
+
+ snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
+ SC2355->module_index, facing,
+ SC2355_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:
+ __SC2355_power_off(SC2355);
+err_free_handler:
+ v4l2_ctrl_handler_free(&SC2355->ctrl_handler);
+err_destroy_mutex:
+ mutex_destroy(&SC2355->mutex);
+
+ return ret;
+}
+
+static int SC2355_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct SC2355 *SC2355 = to_SC2355(sd);
+
+ v4l2_async_unregister_subdev(sd);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ media_entity_cleanup(&sd->entity);
+#endif
+ v4l2_ctrl_handler_free(&SC2355->ctrl_handler);
+ mutex_destroy(&SC2355->mutex);
+
+ pm_runtime_disable(&client->dev);
+ if (!pm_runtime_status_suspended(&client->dev))
+ __SC2355_power_off(SC2355);
+ pm_runtime_set_suspended(&client->dev);
+
+ return 0;
+}
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id SC2355_of_match[] = {
+ { .compatible = "smartsens,sc2355" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, SC2355_of_match);
+#endif
+
+static const struct i2c_device_id SC2355_match_id[] = {
+ { "smartsens,sc2355", 0 },
+ { },
+};
+
+static struct i2c_driver SC2355_i2c_driver = {
+ .driver = {
+ .name = SC2355_NAME,
+ .pm = &SC2355_pm_ops,
+ .of_match_table = of_match_ptr(SC2355_of_match),
+ },
+ .probe = &SC2355_probe,
+ .remove = &SC2355_remove,
+ .id_table = SC2355_match_id,
+};
+
+static int __init sensor_mod_init(void)
+{
+ return i2c_add_driver(&SC2355_i2c_driver);
+}
+
+static void __exit sensor_mod_exit(void)
+{
+ i2c_del_driver(&SC2355_i2c_driver);
+}
+
+device_initcall_sync(sensor_mod_init);
+module_exit(sensor_mod_exit);
+
+MODULE_DESCRIPTION("Smartsens SC2355 sensor driver");
+MODULE_LICENSE("GPL");
--
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