114cd15e7SGerald Loacker // SPDX-License-Identifier: GPL-2.0-only
214cd15e7SGerald Loacker /*
314cd15e7SGerald Loacker * Driver for the Sony IMX415 CMOS Image Sensor.
414cd15e7SGerald Loacker *
514cd15e7SGerald Loacker * Copyright (C) 2023 WolfVision GmbH.
614cd15e7SGerald Loacker */
714cd15e7SGerald Loacker
814cd15e7SGerald Loacker #include <linux/clk.h>
914cd15e7SGerald Loacker #include <linux/gpio/consumer.h>
1014cd15e7SGerald Loacker #include <linux/i2c.h>
1114cd15e7SGerald Loacker #include <linux/module.h>
12*7c7e33b7SRob Herring #include <linux/of.h>
1314cd15e7SGerald Loacker #include <linux/pm_runtime.h>
1414cd15e7SGerald Loacker #include <linux/regmap.h>
1514cd15e7SGerald Loacker #include <linux/regulator/consumer.h>
1614cd15e7SGerald Loacker #include <linux/slab.h>
1714cd15e7SGerald Loacker #include <linux/videodev2.h>
1814cd15e7SGerald Loacker
1914cd15e7SGerald Loacker #include <media/v4l2-ctrls.h>
2014cd15e7SGerald Loacker #include <media/v4l2-fwnode.h>
2114cd15e7SGerald Loacker #include <media/v4l2-subdev.h>
2214cd15e7SGerald Loacker
2314cd15e7SGerald Loacker #define IMX415_PIXEL_ARRAY_TOP 0
2414cd15e7SGerald Loacker #define IMX415_PIXEL_ARRAY_LEFT 0
2514cd15e7SGerald Loacker #define IMX415_PIXEL_ARRAY_WIDTH 3864
2614cd15e7SGerald Loacker #define IMX415_PIXEL_ARRAY_HEIGHT 2192
2714cd15e7SGerald Loacker #define IMX415_PIXEL_ARRAY_VBLANK 58
2814cd15e7SGerald Loacker
2914cd15e7SGerald Loacker #define IMX415_NUM_CLK_PARAM_REGS 11
3014cd15e7SGerald Loacker
3114cd15e7SGerald Loacker #define IMX415_REG_8BIT(n) ((1 << 16) | (n))
3214cd15e7SGerald Loacker #define IMX415_REG_16BIT(n) ((2 << 16) | (n))
3314cd15e7SGerald Loacker #define IMX415_REG_24BIT(n) ((3 << 16) | (n))
3414cd15e7SGerald Loacker #define IMX415_REG_SIZE_SHIFT 16
3514cd15e7SGerald Loacker #define IMX415_REG_ADDR_MASK 0xffff
3614cd15e7SGerald Loacker
3714cd15e7SGerald Loacker #define IMX415_MODE IMX415_REG_8BIT(0x3000)
3814cd15e7SGerald Loacker #define IMX415_MODE_OPERATING (0)
3914cd15e7SGerald Loacker #define IMX415_MODE_STANDBY BIT(0)
4014cd15e7SGerald Loacker #define IMX415_REGHOLD IMX415_REG_8BIT(0x3001)
4114cd15e7SGerald Loacker #define IMX415_REGHOLD_INVALID (0)
4214cd15e7SGerald Loacker #define IMX415_REGHOLD_VALID BIT(0)
4314cd15e7SGerald Loacker #define IMX415_XMSTA IMX415_REG_8BIT(0x3002)
4414cd15e7SGerald Loacker #define IMX415_XMSTA_START (0)
4514cd15e7SGerald Loacker #define IMX415_XMSTA_STOP BIT(0)
4614cd15e7SGerald Loacker #define IMX415_BCWAIT_TIME IMX415_REG_16BIT(0x3008)
4714cd15e7SGerald Loacker #define IMX415_CPWAIT_TIME IMX415_REG_16BIT(0x300A)
4814cd15e7SGerald Loacker #define IMX415_WINMODE IMX415_REG_8BIT(0x301C)
4914cd15e7SGerald Loacker #define IMX415_ADDMODE IMX415_REG_8BIT(0x3022)
5014cd15e7SGerald Loacker #define IMX415_REVERSE IMX415_REG_8BIT(0x3030)
5114cd15e7SGerald Loacker #define IMX415_HREVERSE_SHIFT (0)
5214cd15e7SGerald Loacker #define IMX415_VREVERSE_SHIFT BIT(0)
5314cd15e7SGerald Loacker #define IMX415_ADBIT IMX415_REG_8BIT(0x3031)
5414cd15e7SGerald Loacker #define IMX415_MDBIT IMX415_REG_8BIT(0x3032)
5514cd15e7SGerald Loacker #define IMX415_SYS_MODE IMX415_REG_8BIT(0x3033)
5614cd15e7SGerald Loacker #define IMX415_OUTSEL IMX415_REG_8BIT(0x30C0)
5714cd15e7SGerald Loacker #define IMX415_DRV IMX415_REG_8BIT(0x30C1)
5814cd15e7SGerald Loacker #define IMX415_VMAX IMX415_REG_24BIT(0x3024)
5914cd15e7SGerald Loacker #define IMX415_HMAX IMX415_REG_16BIT(0x3028)
6014cd15e7SGerald Loacker #define IMX415_SHR0 IMX415_REG_24BIT(0x3050)
6114cd15e7SGerald Loacker #define IMX415_GAIN_PCG_0 IMX415_REG_16BIT(0x3090)
6214cd15e7SGerald Loacker #define IMX415_AGAIN_MIN 0
6314cd15e7SGerald Loacker #define IMX415_AGAIN_MAX 100
6414cd15e7SGerald Loacker #define IMX415_AGAIN_STEP 1
6514cd15e7SGerald Loacker #define IMX415_BLKLEVEL IMX415_REG_16BIT(0x30E2)
6614cd15e7SGerald Loacker #define IMX415_BLKLEVEL_DEFAULT 50
6714cd15e7SGerald Loacker #define IMX415_TPG_EN_DUOUT IMX415_REG_8BIT(0x30E4)
6814cd15e7SGerald Loacker #define IMX415_TPG_PATSEL_DUOUT IMX415_REG_8BIT(0x30E6)
6914cd15e7SGerald Loacker #define IMX415_TPG_COLORWIDTH IMX415_REG_8BIT(0x30E8)
7014cd15e7SGerald Loacker #define IMX415_TESTCLKEN_MIPI IMX415_REG_8BIT(0x3110)
7114cd15e7SGerald Loacker #define IMX415_INCKSEL1 IMX415_REG_8BIT(0x3115)
7214cd15e7SGerald Loacker #define IMX415_INCKSEL2 IMX415_REG_8BIT(0x3116)
7314cd15e7SGerald Loacker #define IMX415_INCKSEL3 IMX415_REG_16BIT(0x3118)
7414cd15e7SGerald Loacker #define IMX415_INCKSEL4 IMX415_REG_16BIT(0x311A)
7514cd15e7SGerald Loacker #define IMX415_INCKSEL5 IMX415_REG_8BIT(0x311E)
7614cd15e7SGerald Loacker #define IMX415_DIG_CLP_MODE IMX415_REG_8BIT(0x32C8)
7714cd15e7SGerald Loacker #define IMX415_WRJ_OPEN IMX415_REG_8BIT(0x3390)
7814cd15e7SGerald Loacker #define IMX415_SENSOR_INFO IMX415_REG_16BIT(0x3F12)
7914cd15e7SGerald Loacker #define IMX415_SENSOR_INFO_MASK 0xFFF
8014cd15e7SGerald Loacker #define IMX415_CHIP_ID 0x514
8114cd15e7SGerald Loacker #define IMX415_LANEMODE IMX415_REG_16BIT(0x4001)
8214cd15e7SGerald Loacker #define IMX415_LANEMODE_2 1
8314cd15e7SGerald Loacker #define IMX415_LANEMODE_4 3
8414cd15e7SGerald Loacker #define IMX415_TXCLKESC_FREQ IMX415_REG_16BIT(0x4004)
8514cd15e7SGerald Loacker #define IMX415_INCKSEL6 IMX415_REG_8BIT(0x400C)
8614cd15e7SGerald Loacker #define IMX415_TCLKPOST IMX415_REG_16BIT(0x4018)
8714cd15e7SGerald Loacker #define IMX415_TCLKPREPARE IMX415_REG_16BIT(0x401A)
8814cd15e7SGerald Loacker #define IMX415_TCLKTRAIL IMX415_REG_16BIT(0x401C)
8914cd15e7SGerald Loacker #define IMX415_TCLKZERO IMX415_REG_16BIT(0x401E)
9014cd15e7SGerald Loacker #define IMX415_THSPREPARE IMX415_REG_16BIT(0x4020)
9114cd15e7SGerald Loacker #define IMX415_THSZERO IMX415_REG_16BIT(0x4022)
9214cd15e7SGerald Loacker #define IMX415_THSTRAIL IMX415_REG_16BIT(0x4024)
9314cd15e7SGerald Loacker #define IMX415_THSEXIT IMX415_REG_16BIT(0x4026)
9414cd15e7SGerald Loacker #define IMX415_TLPX IMX415_REG_16BIT(0x4028)
9514cd15e7SGerald Loacker #define IMX415_INCKSEL7 IMX415_REG_8BIT(0x4074)
9614cd15e7SGerald Loacker
9714cd15e7SGerald Loacker struct imx415_reg {
9814cd15e7SGerald Loacker u32 address;
9914cd15e7SGerald Loacker u32 val;
10014cd15e7SGerald Loacker };
10114cd15e7SGerald Loacker
10214cd15e7SGerald Loacker static const char *const imx415_supply_names[] = {
10314cd15e7SGerald Loacker "dvdd",
10414cd15e7SGerald Loacker "ovdd",
10514cd15e7SGerald Loacker "avdd",
10614cd15e7SGerald Loacker };
10714cd15e7SGerald Loacker
10814cd15e7SGerald Loacker /*
10914cd15e7SGerald Loacker * The IMX415 data sheet uses lane rates but v4l2 uses link frequency to
11014cd15e7SGerald Loacker * describe MIPI CSI-2 speed. This driver uses lane rates wherever possible
11114cd15e7SGerald Loacker * and converts them to link frequencies by a factor of two when needed.
11214cd15e7SGerald Loacker */
11314cd15e7SGerald Loacker static const s64 link_freq_menu_items[] = {
11414cd15e7SGerald Loacker 594000000 / 2, 720000000 / 2, 891000000 / 2,
11514cd15e7SGerald Loacker 1440000000 / 2, 1485000000 / 2,
11614cd15e7SGerald Loacker };
11714cd15e7SGerald Loacker
11814cd15e7SGerald Loacker struct imx415_clk_params {
11914cd15e7SGerald Loacker u64 lane_rate;
12014cd15e7SGerald Loacker u64 inck;
12114cd15e7SGerald Loacker struct imx415_reg regs[IMX415_NUM_CLK_PARAM_REGS];
12214cd15e7SGerald Loacker };
12314cd15e7SGerald Loacker
12414cd15e7SGerald Loacker /* INCK Settings - includes all lane rate and INCK dependent registers */
12514cd15e7SGerald Loacker static const struct imx415_clk_params imx415_clk_params[] = {
12614cd15e7SGerald Loacker {
12714cd15e7SGerald Loacker .lane_rate = 594000000,
12814cd15e7SGerald Loacker .inck = 27000000,
12914cd15e7SGerald Loacker .regs[0] = { IMX415_BCWAIT_TIME, 0x05D },
13014cd15e7SGerald Loacker .regs[1] = { IMX415_CPWAIT_TIME, 0x042 },
13114cd15e7SGerald Loacker .regs[2] = { IMX415_SYS_MODE, 0x7 },
13214cd15e7SGerald Loacker .regs[3] = { IMX415_INCKSEL1, 0x00 },
13314cd15e7SGerald Loacker .regs[4] = { IMX415_INCKSEL2, 0x23 },
13414cd15e7SGerald Loacker .regs[5] = { IMX415_INCKSEL3, 0x084 },
13514cd15e7SGerald Loacker .regs[6] = { IMX415_INCKSEL4, 0x0E7 },
13614cd15e7SGerald Loacker .regs[7] = { IMX415_INCKSEL5, 0x23 },
13714cd15e7SGerald Loacker .regs[8] = { IMX415_INCKSEL6, 0x0 },
13814cd15e7SGerald Loacker .regs[9] = { IMX415_INCKSEL7, 0x1 },
13914cd15e7SGerald Loacker .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 },
14014cd15e7SGerald Loacker },
14114cd15e7SGerald Loacker {
14214cd15e7SGerald Loacker .lane_rate = 720000000,
14314cd15e7SGerald Loacker .inck = 24000000,
14414cd15e7SGerald Loacker .regs[0] = { IMX415_BCWAIT_TIME, 0x054 },
14514cd15e7SGerald Loacker .regs[1] = { IMX415_CPWAIT_TIME, 0x03B },
14614cd15e7SGerald Loacker .regs[2] = { IMX415_SYS_MODE, 0x9 },
14714cd15e7SGerald Loacker .regs[3] = { IMX415_INCKSEL1, 0x00 },
14814cd15e7SGerald Loacker .regs[4] = { IMX415_INCKSEL2, 0x23 },
14914cd15e7SGerald Loacker .regs[5] = { IMX415_INCKSEL3, 0x0B4 },
15014cd15e7SGerald Loacker .regs[6] = { IMX415_INCKSEL4, 0x0FC },
15114cd15e7SGerald Loacker .regs[7] = { IMX415_INCKSEL5, 0x23 },
15214cd15e7SGerald Loacker .regs[8] = { IMX415_INCKSEL6, 0x0 },
15314cd15e7SGerald Loacker .regs[9] = { IMX415_INCKSEL7, 0x1 },
15414cd15e7SGerald Loacker .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0600 },
15514cd15e7SGerald Loacker },
15614cd15e7SGerald Loacker {
15714cd15e7SGerald Loacker .lane_rate = 891000000,
15814cd15e7SGerald Loacker .inck = 27000000,
15914cd15e7SGerald Loacker .regs[0] = { IMX415_BCWAIT_TIME, 0x05D },
16014cd15e7SGerald Loacker .regs[1] = { IMX415_CPWAIT_TIME, 0x042 },
16114cd15e7SGerald Loacker .regs[2] = { IMX415_SYS_MODE, 0x5 },
16214cd15e7SGerald Loacker .regs[3] = { IMX415_INCKSEL1, 0x00 },
16314cd15e7SGerald Loacker .regs[4] = { IMX415_INCKSEL2, 0x23 },
16414cd15e7SGerald Loacker .regs[5] = { IMX415_INCKSEL3, 0x0C6 },
16514cd15e7SGerald Loacker .regs[6] = { IMX415_INCKSEL4, 0x0E7 },
16614cd15e7SGerald Loacker .regs[7] = { IMX415_INCKSEL5, 0x23 },
16714cd15e7SGerald Loacker .regs[8] = { IMX415_INCKSEL6, 0x0 },
16814cd15e7SGerald Loacker .regs[9] = { IMX415_INCKSEL7, 0x1 },
16914cd15e7SGerald Loacker .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 },
17014cd15e7SGerald Loacker },
17114cd15e7SGerald Loacker {
17214cd15e7SGerald Loacker .lane_rate = 1440000000,
17314cd15e7SGerald Loacker .inck = 24000000,
17414cd15e7SGerald Loacker .regs[0] = { IMX415_BCWAIT_TIME, 0x054 },
17514cd15e7SGerald Loacker .regs[1] = { IMX415_CPWAIT_TIME, 0x03B },
17614cd15e7SGerald Loacker .regs[2] = { IMX415_SYS_MODE, 0x8 },
17714cd15e7SGerald Loacker .regs[3] = { IMX415_INCKSEL1, 0x00 },
17814cd15e7SGerald Loacker .regs[4] = { IMX415_INCKSEL2, 0x23 },
17914cd15e7SGerald Loacker .regs[5] = { IMX415_INCKSEL3, 0x0B4 },
18014cd15e7SGerald Loacker .regs[6] = { IMX415_INCKSEL4, 0x0FC },
18114cd15e7SGerald Loacker .regs[7] = { IMX415_INCKSEL5, 0x23 },
18214cd15e7SGerald Loacker .regs[8] = { IMX415_INCKSEL6, 0x1 },
18314cd15e7SGerald Loacker .regs[9] = { IMX415_INCKSEL7, 0x0 },
18414cd15e7SGerald Loacker .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0600 },
18514cd15e7SGerald Loacker },
18614cd15e7SGerald Loacker {
18714cd15e7SGerald Loacker .lane_rate = 1485000000,
18814cd15e7SGerald Loacker .inck = 27000000,
18914cd15e7SGerald Loacker .regs[0] = { IMX415_BCWAIT_TIME, 0x05D },
19014cd15e7SGerald Loacker .regs[1] = { IMX415_CPWAIT_TIME, 0x042 },
19114cd15e7SGerald Loacker .regs[2] = { IMX415_SYS_MODE, 0x8 },
19214cd15e7SGerald Loacker .regs[3] = { IMX415_INCKSEL1, 0x00 },
19314cd15e7SGerald Loacker .regs[4] = { IMX415_INCKSEL2, 0x23 },
19414cd15e7SGerald Loacker .regs[5] = { IMX415_INCKSEL3, 0x0A5 },
19514cd15e7SGerald Loacker .regs[6] = { IMX415_INCKSEL4, 0x0E7 },
19614cd15e7SGerald Loacker .regs[7] = { IMX415_INCKSEL5, 0x23 },
19714cd15e7SGerald Loacker .regs[8] = { IMX415_INCKSEL6, 0x1 },
19814cd15e7SGerald Loacker .regs[9] = { IMX415_INCKSEL7, 0x0 },
19914cd15e7SGerald Loacker .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 },
20014cd15e7SGerald Loacker },
20114cd15e7SGerald Loacker };
20214cd15e7SGerald Loacker
20314cd15e7SGerald Loacker /* all-pixel 2-lane 720 Mbps 15.74 Hz mode */
20414cd15e7SGerald Loacker static const struct imx415_reg imx415_mode_2_720[] = {
20514cd15e7SGerald Loacker { IMX415_VMAX, 0x08CA },
20614cd15e7SGerald Loacker { IMX415_HMAX, 0x07F0 },
20714cd15e7SGerald Loacker { IMX415_LANEMODE, IMX415_LANEMODE_2 },
20814cd15e7SGerald Loacker { IMX415_TCLKPOST, 0x006F },
20914cd15e7SGerald Loacker { IMX415_TCLKPREPARE, 0x002F },
21014cd15e7SGerald Loacker { IMX415_TCLKTRAIL, 0x002F },
21114cd15e7SGerald Loacker { IMX415_TCLKZERO, 0x00BF },
21214cd15e7SGerald Loacker { IMX415_THSPREPARE, 0x002F },
21314cd15e7SGerald Loacker { IMX415_THSZERO, 0x0057 },
21414cd15e7SGerald Loacker { IMX415_THSTRAIL, 0x002F },
21514cd15e7SGerald Loacker { IMX415_THSEXIT, 0x004F },
21614cd15e7SGerald Loacker { IMX415_TLPX, 0x0027 },
21714cd15e7SGerald Loacker };
21814cd15e7SGerald Loacker
21914cd15e7SGerald Loacker /* all-pixel 2-lane 1440 Mbps 30.01 Hz mode */
22014cd15e7SGerald Loacker static const struct imx415_reg imx415_mode_2_1440[] = {
22114cd15e7SGerald Loacker { IMX415_VMAX, 0x08CA },
22214cd15e7SGerald Loacker { IMX415_HMAX, 0x042A },
22314cd15e7SGerald Loacker { IMX415_LANEMODE, IMX415_LANEMODE_2 },
22414cd15e7SGerald Loacker { IMX415_TCLKPOST, 0x009F },
22514cd15e7SGerald Loacker { IMX415_TCLKPREPARE, 0x0057 },
22614cd15e7SGerald Loacker { IMX415_TCLKTRAIL, 0x0057 },
22714cd15e7SGerald Loacker { IMX415_TCLKZERO, 0x0187 },
22814cd15e7SGerald Loacker { IMX415_THSPREPARE, 0x005F },
22914cd15e7SGerald Loacker { IMX415_THSZERO, 0x00A7 },
23014cd15e7SGerald Loacker { IMX415_THSTRAIL, 0x005F },
23114cd15e7SGerald Loacker { IMX415_THSEXIT, 0x0097 },
23214cd15e7SGerald Loacker { IMX415_TLPX, 0x004F },
23314cd15e7SGerald Loacker };
23414cd15e7SGerald Loacker
23514cd15e7SGerald Loacker /* all-pixel 4-lane 891 Mbps 30 Hz mode */
23614cd15e7SGerald Loacker static const struct imx415_reg imx415_mode_4_891[] = {
23714cd15e7SGerald Loacker { IMX415_VMAX, 0x08CA },
23814cd15e7SGerald Loacker { IMX415_HMAX, 0x044C },
23914cd15e7SGerald Loacker { IMX415_LANEMODE, IMX415_LANEMODE_4 },
24014cd15e7SGerald Loacker { IMX415_TCLKPOST, 0x007F },
24114cd15e7SGerald Loacker { IMX415_TCLKPREPARE, 0x0037 },
24214cd15e7SGerald Loacker { IMX415_TCLKTRAIL, 0x0037 },
24314cd15e7SGerald Loacker { IMX415_TCLKZERO, 0x00F7 },
24414cd15e7SGerald Loacker { IMX415_THSPREPARE, 0x003F },
24514cd15e7SGerald Loacker { IMX415_THSZERO, 0x006F },
24614cd15e7SGerald Loacker { IMX415_THSTRAIL, 0x003F },
24714cd15e7SGerald Loacker { IMX415_THSEXIT, 0x005F },
24814cd15e7SGerald Loacker { IMX415_TLPX, 0x002F },
24914cd15e7SGerald Loacker };
25014cd15e7SGerald Loacker
25114cd15e7SGerald Loacker struct imx415_mode_reg_list {
25214cd15e7SGerald Loacker u32 num_of_regs;
25314cd15e7SGerald Loacker const struct imx415_reg *regs;
25414cd15e7SGerald Loacker };
25514cd15e7SGerald Loacker
25614cd15e7SGerald Loacker /*
25714cd15e7SGerald Loacker * Mode : number of lanes, lane rate and frame rate dependent settings
25814cd15e7SGerald Loacker *
25914cd15e7SGerald Loacker * pixel_rate and hmax_pix are needed to calculate hblank for the v4l2 ctrl
26014cd15e7SGerald Loacker * interface. These values can not be found in the data sheet and should be
26114cd15e7SGerald Loacker * treated as virtual values. Use following table when adding new modes.
26214cd15e7SGerald Loacker *
26314cd15e7SGerald Loacker * lane_rate lanes fps hmax_pix pixel_rate
26414cd15e7SGerald Loacker *
26514cd15e7SGerald Loacker * 594 2 10.000 4400 99000000
26614cd15e7SGerald Loacker * 891 2 15.000 4400 148500000
26714cd15e7SGerald Loacker * 720 2 15.748 4064 144000000
26814cd15e7SGerald Loacker * 1782 2 30.000 4400 297000000
26914cd15e7SGerald Loacker * 2079 2 30.000 4400 297000000
27014cd15e7SGerald Loacker * 1440 2 30.019 4510 304615385
27114cd15e7SGerald Loacker *
27214cd15e7SGerald Loacker * 594 4 20.000 5500 247500000
27314cd15e7SGerald Loacker * 594 4 25.000 4400 247500000
27414cd15e7SGerald Loacker * 720 4 25.000 4400 247500000
27514cd15e7SGerald Loacker * 720 4 30.019 4510 304615385
27614cd15e7SGerald Loacker * 891 4 30.000 4400 297000000
27714cd15e7SGerald Loacker * 1440 4 30.019 4510 304615385
27814cd15e7SGerald Loacker * 1440 4 60.038 4510 609230769
27914cd15e7SGerald Loacker * 1485 4 60.000 4400 594000000
28014cd15e7SGerald Loacker * 1782 4 60.000 4400 594000000
28114cd15e7SGerald Loacker * 2079 4 60.000 4400 594000000
28214cd15e7SGerald Loacker * 2376 4 90.164 4392 891000000
28314cd15e7SGerald Loacker */
28414cd15e7SGerald Loacker struct imx415_mode {
28514cd15e7SGerald Loacker u64 lane_rate;
28614cd15e7SGerald Loacker u32 lanes;
28714cd15e7SGerald Loacker u32 hmax_pix;
28814cd15e7SGerald Loacker u64 pixel_rate;
28914cd15e7SGerald Loacker struct imx415_mode_reg_list reg_list;
29014cd15e7SGerald Loacker };
29114cd15e7SGerald Loacker
29214cd15e7SGerald Loacker /* mode configs */
29314cd15e7SGerald Loacker static const struct imx415_mode supported_modes[] = {
29414cd15e7SGerald Loacker {
29514cd15e7SGerald Loacker .lane_rate = 720000000,
29614cd15e7SGerald Loacker .lanes = 2,
29714cd15e7SGerald Loacker .hmax_pix = 4064,
29814cd15e7SGerald Loacker .pixel_rate = 144000000,
29914cd15e7SGerald Loacker .reg_list = {
30014cd15e7SGerald Loacker .num_of_regs = ARRAY_SIZE(imx415_mode_2_720),
30114cd15e7SGerald Loacker .regs = imx415_mode_2_720,
30214cd15e7SGerald Loacker },
30314cd15e7SGerald Loacker },
30414cd15e7SGerald Loacker {
30514cd15e7SGerald Loacker .lane_rate = 1440000000,
30614cd15e7SGerald Loacker .lanes = 2,
30714cd15e7SGerald Loacker .hmax_pix = 4510,
30814cd15e7SGerald Loacker .pixel_rate = 304615385,
30914cd15e7SGerald Loacker .reg_list = {
31014cd15e7SGerald Loacker .num_of_regs = ARRAY_SIZE(imx415_mode_2_1440),
31114cd15e7SGerald Loacker .regs = imx415_mode_2_1440,
31214cd15e7SGerald Loacker },
31314cd15e7SGerald Loacker },
31414cd15e7SGerald Loacker {
31514cd15e7SGerald Loacker .lane_rate = 891000000,
31614cd15e7SGerald Loacker .lanes = 4,
31714cd15e7SGerald Loacker .hmax_pix = 4400,
31814cd15e7SGerald Loacker .pixel_rate = 297000000,
31914cd15e7SGerald Loacker .reg_list = {
32014cd15e7SGerald Loacker .num_of_regs = ARRAY_SIZE(imx415_mode_4_891),
32114cd15e7SGerald Loacker .regs = imx415_mode_4_891,
32214cd15e7SGerald Loacker },
32314cd15e7SGerald Loacker },
32414cd15e7SGerald Loacker };
32514cd15e7SGerald Loacker
32614cd15e7SGerald Loacker static const struct regmap_config imx415_regmap_config = {
32714cd15e7SGerald Loacker .reg_bits = 16,
32814cd15e7SGerald Loacker .val_bits = 8,
32914cd15e7SGerald Loacker };
33014cd15e7SGerald Loacker
33114cd15e7SGerald Loacker static const char *const imx415_test_pattern_menu[] = {
33214cd15e7SGerald Loacker "disabled",
33314cd15e7SGerald Loacker "solid black",
33414cd15e7SGerald Loacker "solid white",
33514cd15e7SGerald Loacker "solid dark gray",
33614cd15e7SGerald Loacker "solid light gray",
33714cd15e7SGerald Loacker "stripes light/dark grey",
33814cd15e7SGerald Loacker "stripes dark/light grey",
33914cd15e7SGerald Loacker "stripes black/dark grey",
34014cd15e7SGerald Loacker "stripes dark grey/black",
34114cd15e7SGerald Loacker "stripes black/white",
34214cd15e7SGerald Loacker "stripes white/black",
34314cd15e7SGerald Loacker "horizontal color bar",
34414cd15e7SGerald Loacker "vertical color bar",
34514cd15e7SGerald Loacker };
34614cd15e7SGerald Loacker
34714cd15e7SGerald Loacker struct imx415 {
34814cd15e7SGerald Loacker struct device *dev;
34914cd15e7SGerald Loacker struct clk *clk;
35014cd15e7SGerald Loacker struct regulator_bulk_data supplies[ARRAY_SIZE(imx415_supply_names)];
35114cd15e7SGerald Loacker struct gpio_desc *reset;
35214cd15e7SGerald Loacker struct regmap *regmap;
35314cd15e7SGerald Loacker
35414cd15e7SGerald Loacker const struct imx415_clk_params *clk_params;
35514cd15e7SGerald Loacker
35614cd15e7SGerald Loacker bool streaming;
35714cd15e7SGerald Loacker
35814cd15e7SGerald Loacker struct v4l2_subdev subdev;
35914cd15e7SGerald Loacker struct media_pad pad;
36014cd15e7SGerald Loacker
36114cd15e7SGerald Loacker struct v4l2_ctrl_handler ctrls;
36214cd15e7SGerald Loacker struct v4l2_ctrl *vblank;
36314cd15e7SGerald Loacker struct v4l2_ctrl *hflip;
36414cd15e7SGerald Loacker struct v4l2_ctrl *vflip;
36514cd15e7SGerald Loacker
36614cd15e7SGerald Loacker unsigned int cur_mode;
36714cd15e7SGerald Loacker unsigned int num_data_lanes;
36814cd15e7SGerald Loacker };
36914cd15e7SGerald Loacker
37014cd15e7SGerald Loacker /*
37114cd15e7SGerald Loacker * This table includes fixed register settings and a bunch of undocumented
37214cd15e7SGerald Loacker * registers that have to be set to another value than default.
37314cd15e7SGerald Loacker */
37414cd15e7SGerald Loacker static const struct imx415_reg imx415_init_table[] = {
37514cd15e7SGerald Loacker /* use all-pixel readout mode, no flip */
37614cd15e7SGerald Loacker { IMX415_WINMODE, 0x00 },
37714cd15e7SGerald Loacker { IMX415_ADDMODE, 0x00 },
37814cd15e7SGerald Loacker { IMX415_REVERSE, 0x00 },
37914cd15e7SGerald Loacker /* use RAW 10-bit mode */
38014cd15e7SGerald Loacker { IMX415_ADBIT, 0x00 },
38114cd15e7SGerald Loacker { IMX415_MDBIT, 0x00 },
38214cd15e7SGerald Loacker /* output VSYNC on XVS and low on XHS */
38314cd15e7SGerald Loacker { IMX415_OUTSEL, 0x22 },
38414cd15e7SGerald Loacker { IMX415_DRV, 0x00 },
38514cd15e7SGerald Loacker
38614cd15e7SGerald Loacker /* SONY magic registers */
38714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x32D4), 0x21 },
38814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x32EC), 0xA1 },
38914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3452), 0x7F },
39014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3453), 0x03 },
39114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x358A), 0x04 },
39214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x35A1), 0x02 },
39314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36BC), 0x0C },
39414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36CC), 0x53 },
39514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36CD), 0x00 },
39614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36CE), 0x3C },
39714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D0), 0x8C },
39814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D1), 0x00 },
39914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D2), 0x71 },
40014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D4), 0x3C },
40114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D6), 0x53 },
40214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D7), 0x00 },
40314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36D8), 0x71 },
40414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36DA), 0x8C },
40514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x36DB), 0x00 },
40614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3724), 0x02 },
40714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3726), 0x02 },
40814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3732), 0x02 },
40914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3734), 0x03 },
41014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3736), 0x03 },
41114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3742), 0x03 },
41214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3862), 0xE0 },
41314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x38CC), 0x30 },
41414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x38CD), 0x2F },
41514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x395C), 0x0C },
41614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3A42), 0xD1 },
41714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3A4C), 0x77 },
41814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3AE0), 0x02 },
41914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3AEC), 0x0C },
42014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B00), 0x2E },
42114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B06), 0x29 },
42214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B98), 0x25 },
42314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B99), 0x21 },
42414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B9B), 0x13 },
42514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B9C), 0x13 },
42614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B9D), 0x13 },
42714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3B9E), 0x13 },
42814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA1), 0x00 },
42914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA2), 0x06 },
43014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA3), 0x0B },
43114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA4), 0x10 },
43214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA5), 0x14 },
43314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA6), 0x18 },
43414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA7), 0x1A },
43514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA8), 0x1A },
43614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BA9), 0x1A },
43714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BAC), 0xED },
43814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BAD), 0x01 },
43914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BAE), 0xF6 },
44014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BAF), 0x02 },
44114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB0), 0xA2 },
44214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB1), 0x03 },
44314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB2), 0xE0 },
44414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB3), 0x03 },
44514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB4), 0xE0 },
44614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB5), 0x03 },
44714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB6), 0xE0 },
44814cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB7), 0x03 },
44914cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BB8), 0xE0 },
45014cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BBA), 0xE0 },
45114cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BBC), 0xDA },
45214cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BBE), 0x88 },
45314cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BC0), 0x44 },
45414cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BC2), 0x7B },
45514cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BC4), 0xA2 },
45614cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BC8), 0xBD },
45714cd15e7SGerald Loacker { IMX415_REG_8BIT(0x3BCA), 0xBD },
45814cd15e7SGerald Loacker };
45914cd15e7SGerald Loacker
to_imx415(struct v4l2_subdev * sd)46014cd15e7SGerald Loacker static inline struct imx415 *to_imx415(struct v4l2_subdev *sd)
46114cd15e7SGerald Loacker {
46214cd15e7SGerald Loacker return container_of(sd, struct imx415, subdev);
46314cd15e7SGerald Loacker }
46414cd15e7SGerald Loacker
imx415_read(struct imx415 * sensor,u32 addr)46514cd15e7SGerald Loacker static int imx415_read(struct imx415 *sensor, u32 addr)
46614cd15e7SGerald Loacker {
46714cd15e7SGerald Loacker u8 data[3] = { 0 };
46814cd15e7SGerald Loacker int ret;
46914cd15e7SGerald Loacker
47014cd15e7SGerald Loacker ret = regmap_raw_read(sensor->regmap, addr & IMX415_REG_ADDR_MASK, data,
47114cd15e7SGerald Loacker (addr >> IMX415_REG_SIZE_SHIFT) & 3);
47214cd15e7SGerald Loacker if (ret < 0)
47314cd15e7SGerald Loacker return ret;
47414cd15e7SGerald Loacker
47514cd15e7SGerald Loacker return (data[2] << 16) | (data[1] << 8) | data[0];
47614cd15e7SGerald Loacker }
47714cd15e7SGerald Loacker
imx415_write(struct imx415 * sensor,u32 addr,u32 value)47814cd15e7SGerald Loacker static int imx415_write(struct imx415 *sensor, u32 addr, u32 value)
47914cd15e7SGerald Loacker {
48014cd15e7SGerald Loacker u8 data[3] = { value & 0xff, (value >> 8) & 0xff, value >> 16 };
48114cd15e7SGerald Loacker int ret;
48214cd15e7SGerald Loacker
48314cd15e7SGerald Loacker ret = regmap_raw_write(sensor->regmap, addr & IMX415_REG_ADDR_MASK,
48414cd15e7SGerald Loacker data, (addr >> IMX415_REG_SIZE_SHIFT) & 3);
48514cd15e7SGerald Loacker if (ret < 0)
48614cd15e7SGerald Loacker dev_err_ratelimited(sensor->dev,
48714cd15e7SGerald Loacker "%u-bit write to 0x%04x failed: %d\n",
48814cd15e7SGerald Loacker ((addr >> IMX415_REG_SIZE_SHIFT) & 3) * 8,
48914cd15e7SGerald Loacker addr & IMX415_REG_ADDR_MASK, ret);
49014cd15e7SGerald Loacker
49114cd15e7SGerald Loacker return 0;
49214cd15e7SGerald Loacker }
49314cd15e7SGerald Loacker
imx415_set_testpattern(struct imx415 * sensor,int val)49414cd15e7SGerald Loacker static int imx415_set_testpattern(struct imx415 *sensor, int val)
49514cd15e7SGerald Loacker {
49614cd15e7SGerald Loacker int ret;
49714cd15e7SGerald Loacker
49814cd15e7SGerald Loacker if (val) {
49914cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_BLKLEVEL, 0x00);
50014cd15e7SGerald Loacker if (ret)
50114cd15e7SGerald Loacker return ret;
50214cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TPG_EN_DUOUT, 0x01);
50314cd15e7SGerald Loacker if (ret)
50414cd15e7SGerald Loacker return ret;
50514cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TPG_PATSEL_DUOUT, val - 1);
50614cd15e7SGerald Loacker if (ret)
50714cd15e7SGerald Loacker return ret;
50814cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TPG_COLORWIDTH, 0x01);
50914cd15e7SGerald Loacker if (ret)
51014cd15e7SGerald Loacker return ret;
51114cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TESTCLKEN_MIPI, 0x20);
51214cd15e7SGerald Loacker if (ret)
51314cd15e7SGerald Loacker return ret;
51414cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_DIG_CLP_MODE, 0x00);
51514cd15e7SGerald Loacker if (ret)
51614cd15e7SGerald Loacker return ret;
51714cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_WRJ_OPEN, 0x00);
51814cd15e7SGerald Loacker } else {
51914cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_BLKLEVEL,
52014cd15e7SGerald Loacker IMX415_BLKLEVEL_DEFAULT);
52114cd15e7SGerald Loacker if (ret)
52214cd15e7SGerald Loacker return ret;
52314cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TPG_EN_DUOUT, 0x00);
52414cd15e7SGerald Loacker if (ret)
52514cd15e7SGerald Loacker return ret;
52614cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_TESTCLKEN_MIPI, 0x00);
52714cd15e7SGerald Loacker if (ret)
52814cd15e7SGerald Loacker return ret;
52914cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_DIG_CLP_MODE, 0x01);
53014cd15e7SGerald Loacker if (ret)
53114cd15e7SGerald Loacker return ret;
53214cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_WRJ_OPEN, 0x01);
53314cd15e7SGerald Loacker }
53414cd15e7SGerald Loacker return 0;
53514cd15e7SGerald Loacker }
53614cd15e7SGerald Loacker
imx415_s_ctrl(struct v4l2_ctrl * ctrl)53714cd15e7SGerald Loacker static int imx415_s_ctrl(struct v4l2_ctrl *ctrl)
53814cd15e7SGerald Loacker {
53914cd15e7SGerald Loacker struct imx415 *sensor = container_of(ctrl->handler, struct imx415,
54014cd15e7SGerald Loacker ctrls);
54114cd15e7SGerald Loacker const struct v4l2_mbus_framefmt *format;
54214cd15e7SGerald Loacker struct v4l2_subdev_state *state;
54314cd15e7SGerald Loacker unsigned int vmax;
54414cd15e7SGerald Loacker unsigned int flip;
54514cd15e7SGerald Loacker
54614cd15e7SGerald Loacker if (!sensor->streaming)
54714cd15e7SGerald Loacker return 0;
54814cd15e7SGerald Loacker
54914cd15e7SGerald Loacker state = v4l2_subdev_get_locked_active_state(&sensor->subdev);
55014cd15e7SGerald Loacker format = v4l2_subdev_get_pad_format(&sensor->subdev, state, 0);
55114cd15e7SGerald Loacker
55214cd15e7SGerald Loacker switch (ctrl->id) {
55314cd15e7SGerald Loacker case V4L2_CID_EXPOSURE:
55414cd15e7SGerald Loacker /* clamp the exposure value to VMAX. */
55514cd15e7SGerald Loacker vmax = format->height + sensor->vblank->cur.val;
55614cd15e7SGerald Loacker ctrl->val = min_t(int, ctrl->val, vmax);
55714cd15e7SGerald Loacker return imx415_write(sensor, IMX415_SHR0, vmax - ctrl->val);
55814cd15e7SGerald Loacker
55914cd15e7SGerald Loacker case V4L2_CID_ANALOGUE_GAIN:
56014cd15e7SGerald Loacker /* analogue gain in 0.3 dB step size */
56114cd15e7SGerald Loacker return imx415_write(sensor, IMX415_GAIN_PCG_0, ctrl->val);
56214cd15e7SGerald Loacker
56314cd15e7SGerald Loacker case V4L2_CID_HFLIP:
56414cd15e7SGerald Loacker case V4L2_CID_VFLIP:
56514cd15e7SGerald Loacker flip = (sensor->hflip->val << IMX415_HREVERSE_SHIFT) |
56614cd15e7SGerald Loacker (sensor->vflip->val << IMX415_VREVERSE_SHIFT);
56714cd15e7SGerald Loacker return imx415_write(sensor, IMX415_REVERSE, flip);
56814cd15e7SGerald Loacker
56914cd15e7SGerald Loacker case V4L2_CID_TEST_PATTERN:
57014cd15e7SGerald Loacker return imx415_set_testpattern(sensor, ctrl->val);
57114cd15e7SGerald Loacker
57214cd15e7SGerald Loacker default:
57314cd15e7SGerald Loacker return -EINVAL;
57414cd15e7SGerald Loacker }
57514cd15e7SGerald Loacker }
57614cd15e7SGerald Loacker
57714cd15e7SGerald Loacker static const struct v4l2_ctrl_ops imx415_ctrl_ops = {
57814cd15e7SGerald Loacker .s_ctrl = imx415_s_ctrl,
57914cd15e7SGerald Loacker };
58014cd15e7SGerald Loacker
imx415_ctrls_init(struct imx415 * sensor)58114cd15e7SGerald Loacker static int imx415_ctrls_init(struct imx415 *sensor)
58214cd15e7SGerald Loacker {
58314cd15e7SGerald Loacker struct v4l2_fwnode_device_properties props;
58414cd15e7SGerald Loacker struct v4l2_ctrl *ctrl;
58514cd15e7SGerald Loacker u64 pixel_rate = supported_modes[sensor->cur_mode].pixel_rate;
58614cd15e7SGerald Loacker u64 lane_rate = supported_modes[sensor->cur_mode].lane_rate;
58714cd15e7SGerald Loacker u32 exposure_max = IMX415_PIXEL_ARRAY_HEIGHT +
58814cd15e7SGerald Loacker IMX415_PIXEL_ARRAY_VBLANK - 8;
58914cd15e7SGerald Loacker u32 hblank;
59014cd15e7SGerald Loacker unsigned int i;
59114cd15e7SGerald Loacker int ret;
59214cd15e7SGerald Loacker
59314cd15e7SGerald Loacker ret = v4l2_fwnode_device_parse(sensor->dev, &props);
59414cd15e7SGerald Loacker if (ret < 0)
59514cd15e7SGerald Loacker return ret;
59614cd15e7SGerald Loacker
59714cd15e7SGerald Loacker v4l2_ctrl_handler_init(&sensor->ctrls, 10);
59814cd15e7SGerald Loacker
59914cd15e7SGerald Loacker for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); ++i) {
60014cd15e7SGerald Loacker if (lane_rate == link_freq_menu_items[i] * 2)
60114cd15e7SGerald Loacker break;
60214cd15e7SGerald Loacker }
60314cd15e7SGerald Loacker if (i == ARRAY_SIZE(link_freq_menu_items)) {
60414cd15e7SGerald Loacker return dev_err_probe(sensor->dev, -EINVAL,
60514cd15e7SGerald Loacker "lane rate %llu not supported\n",
60614cd15e7SGerald Loacker lane_rate);
60714cd15e7SGerald Loacker }
60814cd15e7SGerald Loacker
60914cd15e7SGerald Loacker ctrl = v4l2_ctrl_new_int_menu(&sensor->ctrls, &imx415_ctrl_ops,
61014cd15e7SGerald Loacker V4L2_CID_LINK_FREQ,
61114cd15e7SGerald Loacker ARRAY_SIZE(link_freq_menu_items) - 1, i,
61214cd15e7SGerald Loacker link_freq_menu_items);
61314cd15e7SGerald Loacker
61414cd15e7SGerald Loacker if (ctrl)
61514cd15e7SGerald Loacker ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
61614cd15e7SGerald Loacker
61714cd15e7SGerald Loacker v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, V4L2_CID_EXPOSURE,
61814cd15e7SGerald Loacker 4, exposure_max, 1, exposure_max);
61914cd15e7SGerald Loacker
62014cd15e7SGerald Loacker v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops,
62114cd15e7SGerald Loacker V4L2_CID_ANALOGUE_GAIN, IMX415_AGAIN_MIN,
62214cd15e7SGerald Loacker IMX415_AGAIN_MAX, IMX415_AGAIN_STEP,
62314cd15e7SGerald Loacker IMX415_AGAIN_MIN);
62414cd15e7SGerald Loacker
62514cd15e7SGerald Loacker hblank = supported_modes[sensor->cur_mode].hmax_pix -
62614cd15e7SGerald Loacker IMX415_PIXEL_ARRAY_WIDTH;
62714cd15e7SGerald Loacker ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops,
62814cd15e7SGerald Loacker V4L2_CID_HBLANK, hblank, hblank, 1, hblank);
62914cd15e7SGerald Loacker if (ctrl)
63014cd15e7SGerald Loacker ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
63114cd15e7SGerald Loacker
63214cd15e7SGerald Loacker sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops,
63314cd15e7SGerald Loacker V4L2_CID_VBLANK,
63414cd15e7SGerald Loacker IMX415_PIXEL_ARRAY_VBLANK,
63514cd15e7SGerald Loacker IMX415_PIXEL_ARRAY_VBLANK, 1,
63614cd15e7SGerald Loacker IMX415_PIXEL_ARRAY_VBLANK);
63714cd15e7SGerald Loacker if (sensor->vblank)
63814cd15e7SGerald Loacker sensor->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
63914cd15e7SGerald Loacker
64014cd15e7SGerald Loacker /*
64114cd15e7SGerald Loacker * The pixel rate used here is a virtual value and can be used for
64214cd15e7SGerald Loacker * calculating the frame rate together with hblank. It may not
64314cd15e7SGerald Loacker * necessarily be the physically correct pixel clock.
64414cd15e7SGerald Loacker */
64514cd15e7SGerald Loacker v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE, pixel_rate,
64614cd15e7SGerald Loacker pixel_rate, 1, pixel_rate);
64714cd15e7SGerald Loacker
64814cd15e7SGerald Loacker sensor->hflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops,
64914cd15e7SGerald Loacker V4L2_CID_HFLIP, 0, 1, 1, 0);
65014cd15e7SGerald Loacker sensor->vflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops,
65114cd15e7SGerald Loacker V4L2_CID_VFLIP, 0, 1, 1, 0);
65214cd15e7SGerald Loacker
65314cd15e7SGerald Loacker v4l2_ctrl_new_std_menu_items(&sensor->ctrls, &imx415_ctrl_ops,
65414cd15e7SGerald Loacker V4L2_CID_TEST_PATTERN,
65514cd15e7SGerald Loacker ARRAY_SIZE(imx415_test_pattern_menu) - 1,
65614cd15e7SGerald Loacker 0, 0, imx415_test_pattern_menu);
65714cd15e7SGerald Loacker
65814cd15e7SGerald Loacker v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &imx415_ctrl_ops,
65914cd15e7SGerald Loacker &props);
66014cd15e7SGerald Loacker
66114cd15e7SGerald Loacker if (sensor->ctrls.error) {
66214cd15e7SGerald Loacker dev_err_probe(sensor->dev, sensor->ctrls.error,
66314cd15e7SGerald Loacker "failed to add controls\n");
66414cd15e7SGerald Loacker v4l2_ctrl_handler_free(&sensor->ctrls);
66514cd15e7SGerald Loacker return sensor->ctrls.error;
66614cd15e7SGerald Loacker }
66714cd15e7SGerald Loacker sensor->subdev.ctrl_handler = &sensor->ctrls;
66814cd15e7SGerald Loacker
66914cd15e7SGerald Loacker return 0;
67014cd15e7SGerald Loacker }
67114cd15e7SGerald Loacker
imx415_set_mode(struct imx415 * sensor,int mode)67214cd15e7SGerald Loacker static int imx415_set_mode(struct imx415 *sensor, int mode)
67314cd15e7SGerald Loacker {
67414cd15e7SGerald Loacker const struct imx415_reg *reg;
67514cd15e7SGerald Loacker unsigned int i;
67614cd15e7SGerald Loacker int ret = 0;
67714cd15e7SGerald Loacker
67814cd15e7SGerald Loacker if (mode >= ARRAY_SIZE(supported_modes)) {
67914cd15e7SGerald Loacker dev_err(sensor->dev, "Mode %d not supported\n", mode);
68014cd15e7SGerald Loacker return -EINVAL;
68114cd15e7SGerald Loacker }
68214cd15e7SGerald Loacker
68314cd15e7SGerald Loacker for (i = 0; i < supported_modes[mode].reg_list.num_of_regs; ++i) {
68414cd15e7SGerald Loacker reg = &supported_modes[mode].reg_list.regs[i];
68514cd15e7SGerald Loacker ret = imx415_write(sensor, reg->address, reg->val);
68614cd15e7SGerald Loacker if (ret)
68714cd15e7SGerald Loacker return ret;
68814cd15e7SGerald Loacker }
68914cd15e7SGerald Loacker
69014cd15e7SGerald Loacker for (i = 0; i < IMX415_NUM_CLK_PARAM_REGS; ++i) {
69114cd15e7SGerald Loacker reg = &sensor->clk_params->regs[i];
69214cd15e7SGerald Loacker ret = imx415_write(sensor, reg->address, reg->val);
69314cd15e7SGerald Loacker if (ret)
69414cd15e7SGerald Loacker return ret;
69514cd15e7SGerald Loacker }
69614cd15e7SGerald Loacker
69714cd15e7SGerald Loacker return 0;
69814cd15e7SGerald Loacker }
69914cd15e7SGerald Loacker
imx415_setup(struct imx415 * sensor,struct v4l2_subdev_state * state)70014cd15e7SGerald Loacker static int imx415_setup(struct imx415 *sensor, struct v4l2_subdev_state *state)
70114cd15e7SGerald Loacker {
70214cd15e7SGerald Loacker unsigned int i;
70314cd15e7SGerald Loacker int ret;
70414cd15e7SGerald Loacker
70514cd15e7SGerald Loacker for (i = 0; i < ARRAY_SIZE(imx415_init_table); ++i) {
70614cd15e7SGerald Loacker ret = imx415_write(sensor, imx415_init_table[i].address,
70714cd15e7SGerald Loacker imx415_init_table[i].val);
70814cd15e7SGerald Loacker if (ret)
70914cd15e7SGerald Loacker return ret;
71014cd15e7SGerald Loacker }
71114cd15e7SGerald Loacker
71214cd15e7SGerald Loacker return imx415_set_mode(sensor, sensor->cur_mode);
71314cd15e7SGerald Loacker }
71414cd15e7SGerald Loacker
imx415_wakeup(struct imx415 * sensor)71514cd15e7SGerald Loacker static int imx415_wakeup(struct imx415 *sensor)
71614cd15e7SGerald Loacker {
71714cd15e7SGerald Loacker int ret;
71814cd15e7SGerald Loacker
71914cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_MODE, IMX415_MODE_OPERATING);
72014cd15e7SGerald Loacker if (ret)
72114cd15e7SGerald Loacker return ret;
72214cd15e7SGerald Loacker
72314cd15e7SGerald Loacker /*
72414cd15e7SGerald Loacker * According to the datasheet we have to wait at least 63 us after
72514cd15e7SGerald Loacker * leaving standby mode. But this doesn't work even after 30 ms.
72614cd15e7SGerald Loacker * So probably this should be 63 ms and therefore we wait for 80 ms.
72714cd15e7SGerald Loacker */
72814cd15e7SGerald Loacker msleep(80);
72914cd15e7SGerald Loacker
73014cd15e7SGerald Loacker return 0;
73114cd15e7SGerald Loacker }
73214cd15e7SGerald Loacker
imx415_stream_on(struct imx415 * sensor)73314cd15e7SGerald Loacker static int imx415_stream_on(struct imx415 *sensor)
73414cd15e7SGerald Loacker {
73514cd15e7SGerald Loacker int ret;
73614cd15e7SGerald Loacker
73714cd15e7SGerald Loacker ret = imx415_wakeup(sensor);
73814cd15e7SGerald Loacker if (ret)
73914cd15e7SGerald Loacker return ret;
74014cd15e7SGerald Loacker
74114cd15e7SGerald Loacker return imx415_write(sensor, IMX415_XMSTA, IMX415_XMSTA_START);
74214cd15e7SGerald Loacker }
74314cd15e7SGerald Loacker
imx415_stream_off(struct imx415 * sensor)74414cd15e7SGerald Loacker static int imx415_stream_off(struct imx415 *sensor)
74514cd15e7SGerald Loacker {
74614cd15e7SGerald Loacker int ret;
74714cd15e7SGerald Loacker
74814cd15e7SGerald Loacker ret = imx415_write(sensor, IMX415_XMSTA, IMX415_XMSTA_STOP);
74914cd15e7SGerald Loacker if (ret)
75014cd15e7SGerald Loacker return ret;
75114cd15e7SGerald Loacker
75214cd15e7SGerald Loacker return imx415_write(sensor, IMX415_MODE, IMX415_MODE_STANDBY);
75314cd15e7SGerald Loacker }
75414cd15e7SGerald Loacker
imx415_s_stream(struct v4l2_subdev * sd,int enable)75514cd15e7SGerald Loacker static int imx415_s_stream(struct v4l2_subdev *sd, int enable)
75614cd15e7SGerald Loacker {
75714cd15e7SGerald Loacker struct imx415 *sensor = to_imx415(sd);
75814cd15e7SGerald Loacker struct v4l2_subdev_state *state;
75914cd15e7SGerald Loacker int ret;
76014cd15e7SGerald Loacker
76114cd15e7SGerald Loacker state = v4l2_subdev_lock_and_get_active_state(sd);
76214cd15e7SGerald Loacker
76314cd15e7SGerald Loacker if (!enable) {
76414cd15e7SGerald Loacker ret = imx415_stream_off(sensor);
76514cd15e7SGerald Loacker
76614cd15e7SGerald Loacker pm_runtime_mark_last_busy(sensor->dev);
76714cd15e7SGerald Loacker pm_runtime_put_autosuspend(sensor->dev);
76814cd15e7SGerald Loacker
76914cd15e7SGerald Loacker sensor->streaming = false;
77014cd15e7SGerald Loacker
77114cd15e7SGerald Loacker goto unlock;
77214cd15e7SGerald Loacker }
77314cd15e7SGerald Loacker
77414cd15e7SGerald Loacker ret = pm_runtime_resume_and_get(sensor->dev);
77514cd15e7SGerald Loacker if (ret < 0)
77614cd15e7SGerald Loacker goto unlock;
77714cd15e7SGerald Loacker
77814cd15e7SGerald Loacker ret = imx415_setup(sensor, state);
77914cd15e7SGerald Loacker if (ret)
78014cd15e7SGerald Loacker goto err_pm;
78114cd15e7SGerald Loacker
78214cd15e7SGerald Loacker /*
78314cd15e7SGerald Loacker * Set streaming to true to ensure __v4l2_ctrl_handler_setup() will set
78414cd15e7SGerald Loacker * the controls. The flag is reset to false further down if an error
78514cd15e7SGerald Loacker * occurs.
78614cd15e7SGerald Loacker */
78714cd15e7SGerald Loacker sensor->streaming = true;
78814cd15e7SGerald Loacker
78914cd15e7SGerald Loacker ret = __v4l2_ctrl_handler_setup(&sensor->ctrls);
79014cd15e7SGerald Loacker if (ret < 0)
79114cd15e7SGerald Loacker goto err_pm;
79214cd15e7SGerald Loacker
79314cd15e7SGerald Loacker ret = imx415_stream_on(sensor);
79414cd15e7SGerald Loacker if (ret)
79514cd15e7SGerald Loacker goto err_pm;
79614cd15e7SGerald Loacker
79714cd15e7SGerald Loacker ret = 0;
79814cd15e7SGerald Loacker
79914cd15e7SGerald Loacker unlock:
80014cd15e7SGerald Loacker v4l2_subdev_unlock_state(state);
80114cd15e7SGerald Loacker
80214cd15e7SGerald Loacker return ret;
80314cd15e7SGerald Loacker
80414cd15e7SGerald Loacker err_pm:
80514cd15e7SGerald Loacker /*
80614cd15e7SGerald Loacker * In case of error, turn the power off synchronously as the device
80714cd15e7SGerald Loacker * likely has no other chance to recover.
80814cd15e7SGerald Loacker */
80914cd15e7SGerald Loacker pm_runtime_put_sync(sensor->dev);
81014cd15e7SGerald Loacker sensor->streaming = false;
81114cd15e7SGerald Loacker
81214cd15e7SGerald Loacker goto unlock;
81314cd15e7SGerald Loacker }
81414cd15e7SGerald Loacker
imx415_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_state * state,struct v4l2_subdev_mbus_code_enum * code)81514cd15e7SGerald Loacker static int imx415_enum_mbus_code(struct v4l2_subdev *sd,
81614cd15e7SGerald Loacker struct v4l2_subdev_state *state,
81714cd15e7SGerald Loacker struct v4l2_subdev_mbus_code_enum *code)
81814cd15e7SGerald Loacker {
81914cd15e7SGerald Loacker if (code->index != 0)
82014cd15e7SGerald Loacker return -EINVAL;
82114cd15e7SGerald Loacker
82214cd15e7SGerald Loacker code->code = MEDIA_BUS_FMT_SGBRG10_1X10;
82314cd15e7SGerald Loacker
82414cd15e7SGerald Loacker return 0;
82514cd15e7SGerald Loacker }
82614cd15e7SGerald Loacker
imx415_enum_frame_size(struct v4l2_subdev * sd,struct v4l2_subdev_state * state,struct v4l2_subdev_frame_size_enum * fse)82714cd15e7SGerald Loacker static int imx415_enum_frame_size(struct v4l2_subdev *sd,
82814cd15e7SGerald Loacker struct v4l2_subdev_state *state,
82914cd15e7SGerald Loacker struct v4l2_subdev_frame_size_enum *fse)
83014cd15e7SGerald Loacker {
83114cd15e7SGerald Loacker const struct v4l2_mbus_framefmt *format;
83214cd15e7SGerald Loacker
83314cd15e7SGerald Loacker format = v4l2_subdev_get_pad_format(sd, state, fse->pad);
83414cd15e7SGerald Loacker
83514cd15e7SGerald Loacker if (fse->index > 0 || fse->code != format->code)
83614cd15e7SGerald Loacker return -EINVAL;
83714cd15e7SGerald Loacker
83814cd15e7SGerald Loacker fse->min_width = IMX415_PIXEL_ARRAY_WIDTH;
83914cd15e7SGerald Loacker fse->max_width = fse->min_width;
84014cd15e7SGerald Loacker fse->min_height = IMX415_PIXEL_ARRAY_HEIGHT;
84114cd15e7SGerald Loacker fse->max_height = fse->min_height;
84214cd15e7SGerald Loacker return 0;
84314cd15e7SGerald Loacker }
84414cd15e7SGerald Loacker
imx415_get_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * state,struct v4l2_subdev_format * fmt)84514cd15e7SGerald Loacker static int imx415_get_format(struct v4l2_subdev *sd,
84614cd15e7SGerald Loacker struct v4l2_subdev_state *state,
84714cd15e7SGerald Loacker struct v4l2_subdev_format *fmt)
84814cd15e7SGerald Loacker {
84914cd15e7SGerald Loacker fmt->format = *v4l2_subdev_get_pad_format(sd, state, fmt->pad);
85014cd15e7SGerald Loacker
85114cd15e7SGerald Loacker return 0;
85214cd15e7SGerald Loacker }
85314cd15e7SGerald Loacker
imx415_set_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * state,struct v4l2_subdev_format * fmt)85414cd15e7SGerald Loacker static int imx415_set_format(struct v4l2_subdev *sd,
85514cd15e7SGerald Loacker struct v4l2_subdev_state *state,
85614cd15e7SGerald Loacker struct v4l2_subdev_format *fmt)
85714cd15e7SGerald Loacker {
85814cd15e7SGerald Loacker struct v4l2_mbus_framefmt *format;
85914cd15e7SGerald Loacker
86014cd15e7SGerald Loacker format = v4l2_subdev_get_pad_format(sd, state, fmt->pad);
86114cd15e7SGerald Loacker
86214cd15e7SGerald Loacker format->width = fmt->format.width;
86314cd15e7SGerald Loacker format->height = fmt->format.height;
86414cd15e7SGerald Loacker format->code = MEDIA_BUS_FMT_SGBRG10_1X10;
86514cd15e7SGerald Loacker format->field = V4L2_FIELD_NONE;
86614cd15e7SGerald Loacker format->colorspace = V4L2_COLORSPACE_RAW;
86714cd15e7SGerald Loacker format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
86814cd15e7SGerald Loacker format->quantization = V4L2_QUANTIZATION_DEFAULT;
86914cd15e7SGerald Loacker format->xfer_func = V4L2_XFER_FUNC_NONE;
87014cd15e7SGerald Loacker
87114cd15e7SGerald Loacker fmt->format = *format;
87214cd15e7SGerald Loacker return 0;
87314cd15e7SGerald Loacker }
87414cd15e7SGerald Loacker
imx415_get_selection(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_selection * sel)87514cd15e7SGerald Loacker static int imx415_get_selection(struct v4l2_subdev *sd,
87614cd15e7SGerald Loacker struct v4l2_subdev_state *sd_state,
87714cd15e7SGerald Loacker struct v4l2_subdev_selection *sel)
87814cd15e7SGerald Loacker {
87914cd15e7SGerald Loacker switch (sel->target) {
88014cd15e7SGerald Loacker case V4L2_SEL_TGT_CROP:
88114cd15e7SGerald Loacker case V4L2_SEL_TGT_CROP_DEFAULT:
88214cd15e7SGerald Loacker case V4L2_SEL_TGT_CROP_BOUNDS:
88314cd15e7SGerald Loacker sel->r.top = IMX415_PIXEL_ARRAY_TOP;
88414cd15e7SGerald Loacker sel->r.left = IMX415_PIXEL_ARRAY_LEFT;
88514cd15e7SGerald Loacker sel->r.width = IMX415_PIXEL_ARRAY_WIDTH;
88614cd15e7SGerald Loacker sel->r.height = IMX415_PIXEL_ARRAY_HEIGHT;
88714cd15e7SGerald Loacker
88814cd15e7SGerald Loacker return 0;
88914cd15e7SGerald Loacker }
89014cd15e7SGerald Loacker
89114cd15e7SGerald Loacker return -EINVAL;
89214cd15e7SGerald Loacker }
89314cd15e7SGerald Loacker
imx415_init_cfg(struct v4l2_subdev * sd,struct v4l2_subdev_state * state)89414cd15e7SGerald Loacker static int imx415_init_cfg(struct v4l2_subdev *sd,
89514cd15e7SGerald Loacker struct v4l2_subdev_state *state)
89614cd15e7SGerald Loacker {
89714cd15e7SGerald Loacker struct v4l2_subdev_format format = {
89814cd15e7SGerald Loacker .format = {
89914cd15e7SGerald Loacker .width = IMX415_PIXEL_ARRAY_WIDTH,
90014cd15e7SGerald Loacker .height = IMX415_PIXEL_ARRAY_HEIGHT,
90114cd15e7SGerald Loacker },
90214cd15e7SGerald Loacker };
90314cd15e7SGerald Loacker
90414cd15e7SGerald Loacker imx415_set_format(sd, state, &format);
90514cd15e7SGerald Loacker
90614cd15e7SGerald Loacker return 0;
90714cd15e7SGerald Loacker }
90814cd15e7SGerald Loacker
90914cd15e7SGerald Loacker static const struct v4l2_subdev_video_ops imx415_subdev_video_ops = {
91014cd15e7SGerald Loacker .s_stream = imx415_s_stream,
91114cd15e7SGerald Loacker };
91214cd15e7SGerald Loacker
91314cd15e7SGerald Loacker static const struct v4l2_subdev_pad_ops imx415_subdev_pad_ops = {
91414cd15e7SGerald Loacker .enum_mbus_code = imx415_enum_mbus_code,
91514cd15e7SGerald Loacker .enum_frame_size = imx415_enum_frame_size,
91614cd15e7SGerald Loacker .get_fmt = imx415_get_format,
91714cd15e7SGerald Loacker .set_fmt = imx415_set_format,
91814cd15e7SGerald Loacker .get_selection = imx415_get_selection,
91914cd15e7SGerald Loacker .init_cfg = imx415_init_cfg,
92014cd15e7SGerald Loacker };
92114cd15e7SGerald Loacker
92214cd15e7SGerald Loacker static const struct v4l2_subdev_ops imx415_subdev_ops = {
92314cd15e7SGerald Loacker .video = &imx415_subdev_video_ops,
92414cd15e7SGerald Loacker .pad = &imx415_subdev_pad_ops,
92514cd15e7SGerald Loacker };
92614cd15e7SGerald Loacker
imx415_subdev_init(struct imx415 * sensor)92714cd15e7SGerald Loacker static int imx415_subdev_init(struct imx415 *sensor)
92814cd15e7SGerald Loacker {
92914cd15e7SGerald Loacker struct i2c_client *client = to_i2c_client(sensor->dev);
93014cd15e7SGerald Loacker int ret;
93114cd15e7SGerald Loacker
93214cd15e7SGerald Loacker v4l2_i2c_subdev_init(&sensor->subdev, client, &imx415_subdev_ops);
93314cd15e7SGerald Loacker
93414cd15e7SGerald Loacker ret = imx415_ctrls_init(sensor);
93514cd15e7SGerald Loacker if (ret)
93614cd15e7SGerald Loacker return ret;
93714cd15e7SGerald Loacker
93814cd15e7SGerald Loacker sensor->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
93914cd15e7SGerald Loacker V4L2_SUBDEV_FL_HAS_EVENTS;
94014cd15e7SGerald Loacker sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
94114cd15e7SGerald Loacker sensor->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;
94214cd15e7SGerald Loacker ret = media_entity_pads_init(&sensor->subdev.entity, 1, &sensor->pad);
94314cd15e7SGerald Loacker if (ret < 0) {
94414cd15e7SGerald Loacker v4l2_ctrl_handler_free(&sensor->ctrls);
94514cd15e7SGerald Loacker return ret;
94614cd15e7SGerald Loacker }
94714cd15e7SGerald Loacker
94814cd15e7SGerald Loacker sensor->subdev.state_lock = sensor->subdev.ctrl_handler->lock;
94914cd15e7SGerald Loacker v4l2_subdev_init_finalize(&sensor->subdev);
95014cd15e7SGerald Loacker
95114cd15e7SGerald Loacker return 0;
95214cd15e7SGerald Loacker }
95314cd15e7SGerald Loacker
imx415_subdev_cleanup(struct imx415 * sensor)95414cd15e7SGerald Loacker static void imx415_subdev_cleanup(struct imx415 *sensor)
95514cd15e7SGerald Loacker {
95614cd15e7SGerald Loacker media_entity_cleanup(&sensor->subdev.entity);
95714cd15e7SGerald Loacker v4l2_ctrl_handler_free(&sensor->ctrls);
95814cd15e7SGerald Loacker }
95914cd15e7SGerald Loacker
imx415_power_on(struct imx415 * sensor)96014cd15e7SGerald Loacker static int imx415_power_on(struct imx415 *sensor)
96114cd15e7SGerald Loacker {
96214cd15e7SGerald Loacker int ret;
96314cd15e7SGerald Loacker
96414cd15e7SGerald Loacker ret = regulator_bulk_enable(ARRAY_SIZE(sensor->supplies),
96514cd15e7SGerald Loacker sensor->supplies);
96614cd15e7SGerald Loacker if (ret < 0)
96714cd15e7SGerald Loacker return ret;
96814cd15e7SGerald Loacker
96914cd15e7SGerald Loacker gpiod_set_value_cansleep(sensor->reset, 0);
97014cd15e7SGerald Loacker
97114cd15e7SGerald Loacker udelay(1);
97214cd15e7SGerald Loacker
97314cd15e7SGerald Loacker ret = clk_prepare_enable(sensor->clk);
97414cd15e7SGerald Loacker if (ret < 0)
97514cd15e7SGerald Loacker goto err_reset;
97614cd15e7SGerald Loacker
97714cd15e7SGerald Loacker /*
97814cd15e7SGerald Loacker * Data sheet states that 20 us are required before communication start,
97914cd15e7SGerald Loacker * but this doesn't work in all cases. Use 100 us to be on the safe
98014cd15e7SGerald Loacker * side.
98114cd15e7SGerald Loacker */
98214cd15e7SGerald Loacker usleep_range(100, 200);
98314cd15e7SGerald Loacker
98414cd15e7SGerald Loacker return 0;
98514cd15e7SGerald Loacker
98614cd15e7SGerald Loacker err_reset:
98714cd15e7SGerald Loacker gpiod_set_value_cansleep(sensor->reset, 1);
98814cd15e7SGerald Loacker regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies);
98914cd15e7SGerald Loacker return ret;
99014cd15e7SGerald Loacker }
99114cd15e7SGerald Loacker
imx415_power_off(struct imx415 * sensor)99214cd15e7SGerald Loacker static void imx415_power_off(struct imx415 *sensor)
99314cd15e7SGerald Loacker {
99414cd15e7SGerald Loacker clk_disable_unprepare(sensor->clk);
99514cd15e7SGerald Loacker gpiod_set_value_cansleep(sensor->reset, 1);
99614cd15e7SGerald Loacker regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies);
99714cd15e7SGerald Loacker }
99814cd15e7SGerald Loacker
imx415_identify_model(struct imx415 * sensor)99914cd15e7SGerald Loacker static int imx415_identify_model(struct imx415 *sensor)
100014cd15e7SGerald Loacker {
100114cd15e7SGerald Loacker int model, ret;
100214cd15e7SGerald Loacker
100314cd15e7SGerald Loacker /*
100414cd15e7SGerald Loacker * While most registers can be read when the sensor is in standby, this
100514cd15e7SGerald Loacker * is not the case of the sensor info register :-(
100614cd15e7SGerald Loacker */
100714cd15e7SGerald Loacker ret = imx415_wakeup(sensor);
100814cd15e7SGerald Loacker if (ret)
100914cd15e7SGerald Loacker return dev_err_probe(sensor->dev, ret,
101014cd15e7SGerald Loacker "failed to get sensor out of standby\n");
101114cd15e7SGerald Loacker
101214cd15e7SGerald Loacker ret = imx415_read(sensor, IMX415_SENSOR_INFO);
101314cd15e7SGerald Loacker if (ret < 0) {
101414cd15e7SGerald Loacker dev_err_probe(sensor->dev, ret,
101514cd15e7SGerald Loacker "failed to read sensor information\n");
101614cd15e7SGerald Loacker goto done;
101714cd15e7SGerald Loacker }
101814cd15e7SGerald Loacker
101914cd15e7SGerald Loacker model = ret & IMX415_SENSOR_INFO_MASK;
102014cd15e7SGerald Loacker
102114cd15e7SGerald Loacker switch (model) {
102214cd15e7SGerald Loacker case IMX415_CHIP_ID:
102314cd15e7SGerald Loacker dev_info(sensor->dev, "Detected IMX415 image sensor\n");
102414cd15e7SGerald Loacker break;
102514cd15e7SGerald Loacker default:
102614cd15e7SGerald Loacker ret = dev_err_probe(sensor->dev, -ENODEV,
102714cd15e7SGerald Loacker "invalid device model 0x%04x\n", model);
102814cd15e7SGerald Loacker goto done;
102914cd15e7SGerald Loacker }
103014cd15e7SGerald Loacker
103114cd15e7SGerald Loacker ret = 0;
103214cd15e7SGerald Loacker
103314cd15e7SGerald Loacker done:
103414cd15e7SGerald Loacker imx415_write(sensor, IMX415_MODE, IMX415_MODE_STANDBY);
103514cd15e7SGerald Loacker return ret;
103614cd15e7SGerald Loacker }
103714cd15e7SGerald Loacker
imx415_check_inck(unsigned long inck,u64 link_frequency)103814cd15e7SGerald Loacker static int imx415_check_inck(unsigned long inck, u64 link_frequency)
103914cd15e7SGerald Loacker {
104014cd15e7SGerald Loacker unsigned int i;
104114cd15e7SGerald Loacker
104214cd15e7SGerald Loacker for (i = 0; i < ARRAY_SIZE(imx415_clk_params); ++i) {
104314cd15e7SGerald Loacker if ((imx415_clk_params[i].lane_rate == link_frequency * 2) &&
104414cd15e7SGerald Loacker imx415_clk_params[i].inck == inck)
104514cd15e7SGerald Loacker break;
104614cd15e7SGerald Loacker }
104714cd15e7SGerald Loacker
104814cd15e7SGerald Loacker if (i == ARRAY_SIZE(imx415_clk_params))
104914cd15e7SGerald Loacker return -EINVAL;
105014cd15e7SGerald Loacker else
105114cd15e7SGerald Loacker return 0;
105214cd15e7SGerald Loacker }
105314cd15e7SGerald Loacker
imx415_parse_hw_config(struct imx415 * sensor)105414cd15e7SGerald Loacker static int imx415_parse_hw_config(struct imx415 *sensor)
105514cd15e7SGerald Loacker {
105614cd15e7SGerald Loacker struct v4l2_fwnode_endpoint bus_cfg = {
105714cd15e7SGerald Loacker .bus_type = V4L2_MBUS_CSI2_DPHY,
105814cd15e7SGerald Loacker };
105914cd15e7SGerald Loacker struct fwnode_handle *ep;
106014cd15e7SGerald Loacker u64 lane_rate;
106114cd15e7SGerald Loacker unsigned long inck;
106214cd15e7SGerald Loacker unsigned int i, j;
106314cd15e7SGerald Loacker int ret;
106414cd15e7SGerald Loacker
106514cd15e7SGerald Loacker for (i = 0; i < ARRAY_SIZE(sensor->supplies); ++i)
106614cd15e7SGerald Loacker sensor->supplies[i].supply = imx415_supply_names[i];
106714cd15e7SGerald Loacker
106814cd15e7SGerald Loacker ret = devm_regulator_bulk_get(sensor->dev, ARRAY_SIZE(sensor->supplies),
106914cd15e7SGerald Loacker sensor->supplies);
107014cd15e7SGerald Loacker if (ret)
107114cd15e7SGerald Loacker return dev_err_probe(sensor->dev, ret,
107214cd15e7SGerald Loacker "failed to get supplies\n");
107314cd15e7SGerald Loacker
107414cd15e7SGerald Loacker sensor->reset = devm_gpiod_get_optional(sensor->dev, "reset",
107514cd15e7SGerald Loacker GPIOD_OUT_HIGH);
107614cd15e7SGerald Loacker if (IS_ERR(sensor->reset))
107714cd15e7SGerald Loacker return dev_err_probe(sensor->dev, PTR_ERR(sensor->reset),
107814cd15e7SGerald Loacker "failed to get reset GPIO\n");
107914cd15e7SGerald Loacker
108014cd15e7SGerald Loacker sensor->clk = devm_clk_get(sensor->dev, "inck");
108114cd15e7SGerald Loacker if (IS_ERR(sensor->clk))
108214cd15e7SGerald Loacker return dev_err_probe(sensor->dev, PTR_ERR(sensor->clk),
108314cd15e7SGerald Loacker "failed to get clock\n");
108414cd15e7SGerald Loacker
108514cd15e7SGerald Loacker ep = fwnode_graph_get_next_endpoint(dev_fwnode(sensor->dev), NULL);
108614cd15e7SGerald Loacker if (!ep)
108714cd15e7SGerald Loacker return -ENXIO;
108814cd15e7SGerald Loacker
108914cd15e7SGerald Loacker ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
109014cd15e7SGerald Loacker fwnode_handle_put(ep);
109114cd15e7SGerald Loacker if (ret)
109214cd15e7SGerald Loacker return ret;
109314cd15e7SGerald Loacker
109414cd15e7SGerald Loacker switch (bus_cfg.bus.mipi_csi2.num_data_lanes) {
109514cd15e7SGerald Loacker case 2:
109614cd15e7SGerald Loacker case 4:
109714cd15e7SGerald Loacker sensor->num_data_lanes = bus_cfg.bus.mipi_csi2.num_data_lanes;
109814cd15e7SGerald Loacker break;
109914cd15e7SGerald Loacker default:
110014cd15e7SGerald Loacker ret = dev_err_probe(sensor->dev, -EINVAL,
110114cd15e7SGerald Loacker "invalid number of CSI2 data lanes %d\n",
110214cd15e7SGerald Loacker bus_cfg.bus.mipi_csi2.num_data_lanes);
110314cd15e7SGerald Loacker goto done_endpoint_free;
110414cd15e7SGerald Loacker }
110514cd15e7SGerald Loacker
110614cd15e7SGerald Loacker if (!bus_cfg.nr_of_link_frequencies) {
110714cd15e7SGerald Loacker ret = dev_err_probe(sensor->dev, -EINVAL,
110814cd15e7SGerald Loacker "no link frequencies defined");
110914cd15e7SGerald Loacker goto done_endpoint_free;
111014cd15e7SGerald Loacker }
111114cd15e7SGerald Loacker
111214cd15e7SGerald Loacker /*
111314cd15e7SGerald Loacker * Check if there exists a sensor mode defined for current INCK,
111414cd15e7SGerald Loacker * number of lanes and given lane rates.
111514cd15e7SGerald Loacker */
111614cd15e7SGerald Loacker inck = clk_get_rate(sensor->clk);
111714cd15e7SGerald Loacker for (i = 0; i < bus_cfg.nr_of_link_frequencies; ++i) {
111814cd15e7SGerald Loacker if (imx415_check_inck(inck, bus_cfg.link_frequencies[i])) {
111914cd15e7SGerald Loacker dev_dbg(sensor->dev,
112014cd15e7SGerald Loacker "INCK %lu Hz not supported for this link freq",
112114cd15e7SGerald Loacker inck);
112214cd15e7SGerald Loacker continue;
112314cd15e7SGerald Loacker }
112414cd15e7SGerald Loacker
112514cd15e7SGerald Loacker for (j = 0; j < ARRAY_SIZE(supported_modes); ++j) {
112614cd15e7SGerald Loacker if (sensor->num_data_lanes != supported_modes[j].lanes)
112714cd15e7SGerald Loacker continue;
112814cd15e7SGerald Loacker if (bus_cfg.link_frequencies[i] * 2 !=
112914cd15e7SGerald Loacker supported_modes[j].lane_rate)
113014cd15e7SGerald Loacker continue;
113114cd15e7SGerald Loacker sensor->cur_mode = j;
113214cd15e7SGerald Loacker break;
113314cd15e7SGerald Loacker }
113414cd15e7SGerald Loacker if (j < ARRAY_SIZE(supported_modes))
113514cd15e7SGerald Loacker break;
113614cd15e7SGerald Loacker }
113714cd15e7SGerald Loacker if (i == bus_cfg.nr_of_link_frequencies) {
113814cd15e7SGerald Loacker ret = dev_err_probe(sensor->dev, -EINVAL,
113914cd15e7SGerald Loacker "no valid sensor mode defined\n");
114014cd15e7SGerald Loacker goto done_endpoint_free;
114114cd15e7SGerald Loacker }
114214cd15e7SGerald Loacker
114314cd15e7SGerald Loacker lane_rate = supported_modes[sensor->cur_mode].lane_rate;
114414cd15e7SGerald Loacker for (i = 0; i < ARRAY_SIZE(imx415_clk_params); ++i) {
114514cd15e7SGerald Loacker if (lane_rate == imx415_clk_params[i].lane_rate &&
114614cd15e7SGerald Loacker inck == imx415_clk_params[i].inck) {
114714cd15e7SGerald Loacker sensor->clk_params = &imx415_clk_params[i];
114814cd15e7SGerald Loacker break;
114914cd15e7SGerald Loacker }
115014cd15e7SGerald Loacker }
115114cd15e7SGerald Loacker if (i == ARRAY_SIZE(imx415_clk_params)) {
115214cd15e7SGerald Loacker ret = dev_err_probe(sensor->dev, -EINVAL,
115314cd15e7SGerald Loacker "Mode %d not supported\n",
115414cd15e7SGerald Loacker sensor->cur_mode);
115514cd15e7SGerald Loacker goto done_endpoint_free;
115614cd15e7SGerald Loacker }
115714cd15e7SGerald Loacker
115814cd15e7SGerald Loacker ret = 0;
115914cd15e7SGerald Loacker dev_dbg(sensor->dev, "clock: %lu Hz, lane_rate: %llu bps, lanes: %d\n",
116014cd15e7SGerald Loacker inck, lane_rate, sensor->num_data_lanes);
116114cd15e7SGerald Loacker
116214cd15e7SGerald Loacker done_endpoint_free:
116314cd15e7SGerald Loacker v4l2_fwnode_endpoint_free(&bus_cfg);
116414cd15e7SGerald Loacker
116514cd15e7SGerald Loacker return ret;
116614cd15e7SGerald Loacker }
116714cd15e7SGerald Loacker
imx415_probe(struct i2c_client * client)116814cd15e7SGerald Loacker static int imx415_probe(struct i2c_client *client)
116914cd15e7SGerald Loacker {
117014cd15e7SGerald Loacker struct imx415 *sensor;
117114cd15e7SGerald Loacker int ret;
117214cd15e7SGerald Loacker
117314cd15e7SGerald Loacker sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
117414cd15e7SGerald Loacker if (!sensor)
117514cd15e7SGerald Loacker return -ENOMEM;
117614cd15e7SGerald Loacker
117714cd15e7SGerald Loacker sensor->dev = &client->dev;
117814cd15e7SGerald Loacker
117914cd15e7SGerald Loacker ret = imx415_parse_hw_config(sensor);
118014cd15e7SGerald Loacker if (ret)
118114cd15e7SGerald Loacker return ret;
118214cd15e7SGerald Loacker
118314cd15e7SGerald Loacker sensor->regmap = devm_regmap_init_i2c(client, &imx415_regmap_config);
118414cd15e7SGerald Loacker if (IS_ERR(sensor->regmap))
118514cd15e7SGerald Loacker return PTR_ERR(sensor->regmap);
118614cd15e7SGerald Loacker
118714cd15e7SGerald Loacker /*
118814cd15e7SGerald Loacker * Enable power management. The driver supports runtime PM, but needs to
118914cd15e7SGerald Loacker * work when runtime PM is disabled in the kernel. To that end, power
119014cd15e7SGerald Loacker * the sensor on manually here, identify it, and fully initialize it.
119114cd15e7SGerald Loacker */
119214cd15e7SGerald Loacker ret = imx415_power_on(sensor);
119314cd15e7SGerald Loacker if (ret)
119414cd15e7SGerald Loacker return ret;
119514cd15e7SGerald Loacker
119614cd15e7SGerald Loacker ret = imx415_identify_model(sensor);
119714cd15e7SGerald Loacker if (ret)
119814cd15e7SGerald Loacker goto err_power;
119914cd15e7SGerald Loacker
120014cd15e7SGerald Loacker ret = imx415_subdev_init(sensor);
120114cd15e7SGerald Loacker if (ret)
120214cd15e7SGerald Loacker goto err_power;
120314cd15e7SGerald Loacker
120414cd15e7SGerald Loacker /*
120514cd15e7SGerald Loacker * Enable runtime PM. As the device has been powered manually, mark it
120614cd15e7SGerald Loacker * as active, and increase the usage count without resuming the device.
120714cd15e7SGerald Loacker */
120814cd15e7SGerald Loacker pm_runtime_set_active(sensor->dev);
120914cd15e7SGerald Loacker pm_runtime_get_noresume(sensor->dev);
121014cd15e7SGerald Loacker pm_runtime_enable(sensor->dev);
121114cd15e7SGerald Loacker
121214cd15e7SGerald Loacker ret = v4l2_async_register_subdev_sensor(&sensor->subdev);
121314cd15e7SGerald Loacker if (ret < 0)
121414cd15e7SGerald Loacker goto err_pm;
121514cd15e7SGerald Loacker
121614cd15e7SGerald Loacker /*
121714cd15e7SGerald Loacker * Finally, enable autosuspend and decrease the usage count. The device
121814cd15e7SGerald Loacker * will get suspended after the autosuspend delay, turning the power
121914cd15e7SGerald Loacker * off.
122014cd15e7SGerald Loacker */
122114cd15e7SGerald Loacker pm_runtime_set_autosuspend_delay(sensor->dev, 1000);
122214cd15e7SGerald Loacker pm_runtime_use_autosuspend(sensor->dev);
122314cd15e7SGerald Loacker pm_runtime_put_autosuspend(sensor->dev);
122414cd15e7SGerald Loacker
122514cd15e7SGerald Loacker return 0;
122614cd15e7SGerald Loacker
122714cd15e7SGerald Loacker err_pm:
122814cd15e7SGerald Loacker pm_runtime_disable(sensor->dev);
122914cd15e7SGerald Loacker pm_runtime_put_noidle(sensor->dev);
123014cd15e7SGerald Loacker imx415_subdev_cleanup(sensor);
123114cd15e7SGerald Loacker err_power:
123214cd15e7SGerald Loacker imx415_power_off(sensor);
123314cd15e7SGerald Loacker return ret;
123414cd15e7SGerald Loacker }
123514cd15e7SGerald Loacker
imx415_remove(struct i2c_client * client)123614cd15e7SGerald Loacker static void imx415_remove(struct i2c_client *client)
123714cd15e7SGerald Loacker {
123814cd15e7SGerald Loacker struct v4l2_subdev *subdev = i2c_get_clientdata(client);
123914cd15e7SGerald Loacker struct imx415 *sensor = to_imx415(subdev);
124014cd15e7SGerald Loacker
124114cd15e7SGerald Loacker v4l2_async_unregister_subdev(subdev);
124214cd15e7SGerald Loacker
124314cd15e7SGerald Loacker imx415_subdev_cleanup(sensor);
124414cd15e7SGerald Loacker
124514cd15e7SGerald Loacker /*
124614cd15e7SGerald Loacker * Disable runtime PM. In case runtime PM is disabled in the kernel,
124714cd15e7SGerald Loacker * make sure to turn power off manually.
124814cd15e7SGerald Loacker */
124914cd15e7SGerald Loacker pm_runtime_disable(sensor->dev);
125014cd15e7SGerald Loacker if (!pm_runtime_status_suspended(sensor->dev))
125114cd15e7SGerald Loacker imx415_power_off(sensor);
125214cd15e7SGerald Loacker pm_runtime_set_suspended(sensor->dev);
125314cd15e7SGerald Loacker }
125414cd15e7SGerald Loacker
imx415_runtime_resume(struct device * dev)125514cd15e7SGerald Loacker static int imx415_runtime_resume(struct device *dev)
125614cd15e7SGerald Loacker {
125714cd15e7SGerald Loacker struct i2c_client *client = to_i2c_client(dev);
125814cd15e7SGerald Loacker struct v4l2_subdev *subdev = i2c_get_clientdata(client);
125914cd15e7SGerald Loacker struct imx415 *sensor = to_imx415(subdev);
126014cd15e7SGerald Loacker
126114cd15e7SGerald Loacker return imx415_power_on(sensor);
126214cd15e7SGerald Loacker }
126314cd15e7SGerald Loacker
imx415_runtime_suspend(struct device * dev)126414cd15e7SGerald Loacker static int imx415_runtime_suspend(struct device *dev)
126514cd15e7SGerald Loacker {
126614cd15e7SGerald Loacker struct i2c_client *client = to_i2c_client(dev);
126714cd15e7SGerald Loacker struct v4l2_subdev *subdev = i2c_get_clientdata(client);
126814cd15e7SGerald Loacker struct imx415 *sensor = to_imx415(subdev);
126914cd15e7SGerald Loacker
127014cd15e7SGerald Loacker imx415_power_off(sensor);
127114cd15e7SGerald Loacker
127214cd15e7SGerald Loacker return 0;
127314cd15e7SGerald Loacker }
127414cd15e7SGerald Loacker
127514cd15e7SGerald Loacker static DEFINE_RUNTIME_DEV_PM_OPS(imx415_pm_ops, imx415_runtime_suspend,
127614cd15e7SGerald Loacker imx415_runtime_resume, NULL);
127714cd15e7SGerald Loacker
127814cd15e7SGerald Loacker static const struct of_device_id imx415_of_match[] = {
127914cd15e7SGerald Loacker { .compatible = "sony,imx415" },
128014cd15e7SGerald Loacker { /* sentinel */ }
128114cd15e7SGerald Loacker };
128214cd15e7SGerald Loacker
128314cd15e7SGerald Loacker MODULE_DEVICE_TABLE(of, imx415_of_match);
128414cd15e7SGerald Loacker
128514cd15e7SGerald Loacker static struct i2c_driver imx415_driver = {
1286aaeb31c0SUwe Kleine-König .probe = imx415_probe,
128714cd15e7SGerald Loacker .remove = imx415_remove,
128814cd15e7SGerald Loacker .driver = {
128914cd15e7SGerald Loacker .name = "imx415",
129014cd15e7SGerald Loacker .of_match_table = imx415_of_match,
129114cd15e7SGerald Loacker .pm = pm_ptr(&imx415_pm_ops),
129214cd15e7SGerald Loacker },
129314cd15e7SGerald Loacker };
129414cd15e7SGerald Loacker
129514cd15e7SGerald Loacker module_i2c_driver(imx415_driver);
129614cd15e7SGerald Loacker
129714cd15e7SGerald Loacker MODULE_DESCRIPTION("Sony IMX415 image sensor driver");
129814cd15e7SGerald Loacker MODULE_AUTHOR("Gerald Loacker <gerald.loacker@wolfvision.net>");
129914cd15e7SGerald Loacker MODULE_AUTHOR("Michael Riesch <michael.riesch@wolfvision.net>");
130014cd15e7SGerald Loacker MODULE_LICENSE("GPL");
1301