| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Driver for the Sony IMX415 CMOS Image Sensor. |
| * |
| * Copyright (C) 2023 WolfVision GmbH. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/i2c.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regmap.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/slab.h> |
| #include <linux/videodev2.h> |
| |
| #include <media/v4l2-cci.h> |
| #include <media/v4l2-ctrls.h> |
| #include <media/v4l2-fwnode.h> |
| #include <media/v4l2-subdev.h> |
| |
| #define IMX415_PIXEL_ARRAY_TOP 0 |
| #define IMX415_PIXEL_ARRAY_LEFT 0 |
| #define IMX415_PIXEL_ARRAY_WIDTH 3864 |
| #define IMX415_PIXEL_ARRAY_HEIGHT 2192 |
| #define IMX415_PIXEL_ARRAY_VBLANK 58 |
| #define IMX415_EXPOSURE_OFFSET 8 |
| |
| #define IMX415_PIXEL_RATE_74_25MHZ 891000000 |
| #define IMX415_PIXEL_RATE_72MHZ 864000000 |
| |
| #define IMX415_NUM_CLK_PARAM_REGS 11 |
| |
| #define IMX415_MODE CCI_REG8(0x3000) |
| #define IMX415_MODE_OPERATING (0) |
| #define IMX415_MODE_STANDBY BIT(0) |
| #define IMX415_REGHOLD CCI_REG8(0x3001) |
| #define IMX415_REGHOLD_INVALID (0) |
| #define IMX415_REGHOLD_VALID BIT(0) |
| #define IMX415_XMSTA CCI_REG8(0x3002) |
| #define IMX415_XMSTA_START (0) |
| #define IMX415_XMSTA_STOP BIT(0) |
| #define IMX415_BCWAIT_TIME CCI_REG16_LE(0x3008) |
| #define IMX415_CPWAIT_TIME CCI_REG16_LE(0x300a) |
| #define IMX415_WINMODE CCI_REG8(0x301c) |
| #define IMX415_ADDMODE CCI_REG8(0x3022) |
| #define IMX415_REVERSE CCI_REG8(0x3030) |
| #define IMX415_HREVERSE_SHIFT (0) |
| #define IMX415_VREVERSE_SHIFT BIT(0) |
| #define IMX415_ADBIT CCI_REG8(0x3031) |
| #define IMX415_MDBIT CCI_REG8(0x3032) |
| #define IMX415_SYS_MODE CCI_REG8(0x3033) |
| #define IMX415_OUTSEL CCI_REG8(0x30c0) |
| #define IMX415_DRV CCI_REG8(0x30c1) |
| #define IMX415_VMAX CCI_REG24_LE(0x3024) |
| #define IMX415_VMAX_MAX 0xfffff |
| #define IMX415_HMAX CCI_REG16_LE(0x3028) |
| #define IMX415_HMAX_MAX 0xffff |
| #define IMX415_HMAX_MULTIPLIER 12 |
| #define IMX415_SHR0 CCI_REG24_LE(0x3050) |
| #define IMX415_GAIN_PCG_0 CCI_REG16_LE(0x3090) |
| #define IMX415_AGAIN_MIN 0 |
| #define IMX415_AGAIN_MAX 100 |
| #define IMX415_AGAIN_STEP 1 |
| #define IMX415_BLKLEVEL CCI_REG16_LE(0x30e2) |
| #define IMX415_BLKLEVEL_DEFAULT 50 |
| #define IMX415_TPG_EN_DUOUT CCI_REG8(0x30e4) |
| #define IMX415_TPG_PATSEL_DUOUT CCI_REG8(0x30e6) |
| #define IMX415_TPG_COLORWIDTH CCI_REG8(0x30e8) |
| #define IMX415_TESTCLKEN_MIPI CCI_REG8(0x3110) |
| #define IMX415_INCKSEL1 CCI_REG8(0x3115) |
| #define IMX415_INCKSEL2 CCI_REG8(0x3116) |
| #define IMX415_INCKSEL3 CCI_REG16_LE(0x3118) |
| #define IMX415_INCKSEL4 CCI_REG16_LE(0x311a) |
| #define IMX415_INCKSEL5 CCI_REG8(0x311e) |
| #define IMX415_DIG_CLP_MODE CCI_REG8(0x32c8) |
| #define IMX415_WRJ_OPEN CCI_REG8(0x3390) |
| #define IMX415_SENSOR_INFO CCI_REG16_LE(0x3f12) |
| #define IMX415_SENSOR_INFO_MASK 0xfff |
| #define IMX415_CHIP_ID 0x514 |
| #define IMX415_LANEMODE CCI_REG16_LE(0x4001) |
| #define IMX415_LANEMODE_2 1 |
| #define IMX415_LANEMODE_4 3 |
| #define IMX415_TXCLKESC_FREQ CCI_REG16_LE(0x4004) |
| #define IMX415_INCKSEL6 CCI_REG8(0x400c) |
| #define IMX415_TCLKPOST CCI_REG16_LE(0x4018) |
| #define IMX415_TCLKPREPARE CCI_REG16_LE(0x401a) |
| #define IMX415_TCLKTRAIL CCI_REG16_LE(0x401c) |
| #define IMX415_TCLKZERO CCI_REG16_LE(0x401e) |
| #define IMX415_THSPREPARE CCI_REG16_LE(0x4020) |
| #define IMX415_THSZERO CCI_REG16_LE(0x4022) |
| #define IMX415_THSTRAIL CCI_REG16_LE(0x4024) |
| #define IMX415_THSEXIT CCI_REG16_LE(0x4026) |
| #define IMX415_TLPX CCI_REG16_LE(0x4028) |
| #define IMX415_INCKSEL7 CCI_REG8(0x4074) |
| |
| static const char *const imx415_supply_names[] = { |
| "dvdd", |
| "ovdd", |
| "avdd", |
| }; |
| |
| /* |
| * The IMX415 data sheet uses lane rates but v4l2 uses link frequency to |
| * describe MIPI CSI-2 speed. This driver uses lane rates wherever possible |
| * and converts them to link frequencies by a factor of two when needed. |
| */ |
| static const s64 link_freq_menu_items[] = { |
| 594000000 / 2, 720000000 / 2, 891000000 / 2, |
| 1440000000 / 2, 1485000000 / 2, |
| }; |
| |
| struct imx415_clk_params { |
| u64 lane_rate; |
| u64 inck; |
| struct cci_reg_sequence regs[IMX415_NUM_CLK_PARAM_REGS]; |
| }; |
| |
| /* INCK Settings - includes all lane rate and INCK dependent registers */ |
| static const struct imx415_clk_params imx415_clk_params[] = { |
| { |
| .lane_rate = 594000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x7 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x084 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 594000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x7 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x080 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0984 }, |
| }, |
| { |
| .lane_rate = 594000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x7 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x080 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| { |
| .lane_rate = 720000000UL, |
| .inck = 24000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x054 }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x03B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x9 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0B4 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0FC }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0600 }, |
| }, |
| { |
| .lane_rate = 720000000UL, |
| .inck = 72000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0F8 }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B0 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x9 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0A0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1200 }, |
| }, |
| { |
| .lane_rate = 891000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x5 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C6 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 891000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x5 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0948 }, |
| }, |
| { |
| .lane_rate = 891000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x5 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x0 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x1 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| { |
| .lane_rate = 1440000000UL, |
| .inck = 24000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x054 }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x03B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x8 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0B4 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0FC }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0600 }, |
| }, |
| { |
| .lane_rate = 1440000000UL, |
| .inck = 72000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0F8 }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B0 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x8 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0A0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1200 }, |
| }, |
| { |
| .lane_rate = 1485000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x8 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0A5 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 1485000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x8 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0A0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0948 }, |
| }, |
| { |
| .lane_rate = 1485000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x8 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0A0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| { |
| .lane_rate = 1782000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x4 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C6 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 1782000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x4 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0948 }, |
| }, |
| { |
| .lane_rate = 1782000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x4 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0C0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| { |
| .lane_rate = 2079000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x2 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0E7 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 2079000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x2 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0E0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0948 }, |
| }, |
| { |
| .lane_rate = 2079000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x2 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x0E0 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| { |
| .lane_rate = 2376000000UL, |
| .inck = 27000000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x05D }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x042 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x0 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x23 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x108 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E7 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x23 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x06C0 }, |
| }, |
| { |
| .lane_rate = 2376000000UL, |
| .inck = 37125000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x07F }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x05B }, |
| .regs[2] = { IMX415_SYS_MODE, 0x0 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x24 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x100 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x24 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x0948 }, |
| }, |
| { |
| .lane_rate = 2376000000UL, |
| .inck = 74250000, |
| .regs[0] = { IMX415_BCWAIT_TIME, 0x0FF }, |
| .regs[1] = { IMX415_CPWAIT_TIME, 0x0B6 }, |
| .regs[2] = { IMX415_SYS_MODE, 0x0 }, |
| .regs[3] = { IMX415_INCKSEL1, 0x00 }, |
| .regs[4] = { IMX415_INCKSEL2, 0x28 }, |
| .regs[5] = { IMX415_INCKSEL3, 0x100 }, |
| .regs[6] = { IMX415_INCKSEL4, 0x0E0 }, |
| .regs[7] = { IMX415_INCKSEL5, 0x28 }, |
| .regs[8] = { IMX415_INCKSEL6, 0x1 }, |
| .regs[9] = { IMX415_INCKSEL7, 0x0 }, |
| .regs[10] = { IMX415_TXCLKESC_FREQ, 0x1290 }, |
| }, |
| }; |
| |
| /* 720 Mbps CSI configuration */ |
| static const struct cci_reg_sequence imx415_linkrate_720mbps[] = { |
| { IMX415_TCLKPOST, 0x006F }, |
| { IMX415_TCLKPREPARE, 0x002F }, |
| { IMX415_TCLKTRAIL, 0x002F }, |
| { IMX415_TCLKZERO, 0x00BF }, |
| { IMX415_THSPREPARE, 0x002F }, |
| { IMX415_THSZERO, 0x0057 }, |
| { IMX415_THSTRAIL, 0x002F }, |
| { IMX415_THSEXIT, 0x004F }, |
| { IMX415_TLPX, 0x0027 }, |
| }; |
| |
| /* 1440 Mbps CSI configuration */ |
| static const struct cci_reg_sequence imx415_linkrate_1440mbps[] = { |
| { IMX415_TCLKPOST, 0x009F }, |
| { IMX415_TCLKPREPARE, 0x0057 }, |
| { IMX415_TCLKTRAIL, 0x0057 }, |
| { IMX415_TCLKZERO, 0x0187 }, |
| { IMX415_THSPREPARE, 0x005F }, |
| { IMX415_THSZERO, 0x00A7 }, |
| { IMX415_THSTRAIL, 0x005F }, |
| { IMX415_THSEXIT, 0x0097 }, |
| { IMX415_TLPX, 0x004F }, |
| }; |
| |
| /* 891 Mbps CSI configuration */ |
| static const struct cci_reg_sequence imx415_linkrate_891mbps[] = { |
| { IMX415_TCLKPOST, 0x007F }, |
| { IMX415_TCLKPREPARE, 0x0037 }, |
| { IMX415_TCLKTRAIL, 0x0037 }, |
| { IMX415_TCLKZERO, 0x00F7 }, |
| { IMX415_THSPREPARE, 0x003F }, |
| { IMX415_THSZERO, 0x006F }, |
| { IMX415_THSTRAIL, 0x003F }, |
| { IMX415_THSEXIT, 0x005F }, |
| { IMX415_TLPX, 0x002F }, |
| }; |
| |
| struct imx415_mode_reg_list { |
| u32 num_of_regs; |
| const struct cci_reg_sequence *regs; |
| }; |
| |
| struct imx415_mode { |
| u64 lane_rate; |
| u32 hmax_min[2]; |
| struct imx415_mode_reg_list reg_list; |
| }; |
| |
| /* mode configs */ |
| static const struct imx415_mode supported_modes[] = { |
| { |
| .lane_rate = 720000000, |
| .hmax_min = { 2032, 1066 }, |
| .reg_list = { |
| .num_of_regs = ARRAY_SIZE(imx415_linkrate_720mbps), |
| .regs = imx415_linkrate_720mbps, |
| }, |
| }, |
| { |
| .lane_rate = 1440000000, |
| .hmax_min = { 1066, 533 }, |
| .reg_list = { |
| .num_of_regs = ARRAY_SIZE(imx415_linkrate_1440mbps), |
| .regs = imx415_linkrate_1440mbps, |
| }, |
| }, |
| { |
| .lane_rate = 891000000, |
| .hmax_min = { 2200, 1100 }, |
| .reg_list = { |
| .num_of_regs = ARRAY_SIZE(imx415_linkrate_891mbps), |
| .regs = imx415_linkrate_891mbps, |
| }, |
| }, |
| }; |
| |
| static const char *const imx415_test_pattern_menu[] = { |
| "disabled", |
| "solid black", |
| "solid white", |
| "solid dark gray", |
| "solid light gray", |
| "stripes light/dark grey", |
| "stripes dark/light grey", |
| "stripes black/dark grey", |
| "stripes dark grey/black", |
| "stripes black/white", |
| "stripes white/black", |
| "horizontal color bar", |
| "vertical color bar", |
| }; |
| |
| struct imx415 { |
| struct device *dev; |
| struct clk *clk; |
| unsigned long pixel_rate; |
| struct regulator_bulk_data supplies[ARRAY_SIZE(imx415_supply_names)]; |
| struct gpio_desc *reset; |
| struct regmap *regmap; |
| |
| const struct imx415_clk_params *clk_params; |
| |
| struct v4l2_subdev subdev; |
| struct media_pad pad; |
| |
| struct v4l2_ctrl_handler ctrls; |
| struct v4l2_ctrl *vblank; |
| struct v4l2_ctrl *hblank; |
| struct v4l2_ctrl *hflip; |
| struct v4l2_ctrl *vflip; |
| struct v4l2_ctrl *exposure; |
| |
| unsigned int cur_mode; |
| unsigned int num_data_lanes; |
| }; |
| |
| /* |
| * This table includes fixed register settings and a bunch of undocumented |
| * registers that have to be set to another value than default. |
| */ |
| static const struct cci_reg_sequence imx415_init_table[] = { |
| /* use all-pixel readout mode, no flip */ |
| { IMX415_WINMODE, 0x00 }, |
| { IMX415_ADDMODE, 0x00 }, |
| { IMX415_REVERSE, 0x00 }, |
| /* use RAW 10-bit mode */ |
| { IMX415_ADBIT, 0x00 }, |
| { IMX415_MDBIT, 0x00 }, |
| /* output VSYNC on XVS and low on XHS */ |
| { IMX415_OUTSEL, 0x22 }, |
| { IMX415_DRV, 0x00 }, |
| |
| /* SONY magic registers */ |
| { CCI_REG8(0x32D4), 0x21 }, |
| { CCI_REG8(0x32EC), 0xA1 }, |
| { CCI_REG8(0x3452), 0x7F }, |
| { CCI_REG8(0x3453), 0x03 }, |
| { CCI_REG8(0x358A), 0x04 }, |
| { CCI_REG8(0x35A1), 0x02 }, |
| { CCI_REG8(0x36BC), 0x0C }, |
| { CCI_REG8(0x36CC), 0x53 }, |
| { CCI_REG8(0x36CD), 0x00 }, |
| { CCI_REG8(0x36CE), 0x3C }, |
| { CCI_REG8(0x36D0), 0x8C }, |
| { CCI_REG8(0x36D1), 0x00 }, |
| { CCI_REG8(0x36D2), 0x71 }, |
| { CCI_REG8(0x36D4), 0x3C }, |
| { CCI_REG8(0x36D6), 0x53 }, |
| { CCI_REG8(0x36D7), 0x00 }, |
| { CCI_REG8(0x36D8), 0x71 }, |
| { CCI_REG8(0x36DA), 0x8C }, |
| { CCI_REG8(0x36DB), 0x00 }, |
| { CCI_REG8(0x3724), 0x02 }, |
| { CCI_REG8(0x3726), 0x02 }, |
| { CCI_REG8(0x3732), 0x02 }, |
| { CCI_REG8(0x3734), 0x03 }, |
| { CCI_REG8(0x3736), 0x03 }, |
| { CCI_REG8(0x3742), 0x03 }, |
| { CCI_REG8(0x3862), 0xE0 }, |
| { CCI_REG8(0x38CC), 0x30 }, |
| { CCI_REG8(0x38CD), 0x2F }, |
| { CCI_REG8(0x395C), 0x0C }, |
| { CCI_REG8(0x3A42), 0xD1 }, |
| { CCI_REG8(0x3A4C), 0x77 }, |
| { CCI_REG8(0x3AE0), 0x02 }, |
| { CCI_REG8(0x3AEC), 0x0C }, |
| { CCI_REG8(0x3B00), 0x2E }, |
| { CCI_REG8(0x3B06), 0x29 }, |
| { CCI_REG8(0x3B98), 0x25 }, |
| { CCI_REG8(0x3B99), 0x21 }, |
| { CCI_REG8(0x3B9B), 0x13 }, |
| { CCI_REG8(0x3B9C), 0x13 }, |
| { CCI_REG8(0x3B9D), 0x13 }, |
| { CCI_REG8(0x3B9E), 0x13 }, |
| { CCI_REG8(0x3BA1), 0x00 }, |
| { CCI_REG8(0x3BA2), 0x06 }, |
| { CCI_REG8(0x3BA3), 0x0B }, |
| { CCI_REG8(0x3BA4), 0x10 }, |
| { CCI_REG8(0x3BA5), 0x14 }, |
| { CCI_REG8(0x3BA6), 0x18 }, |
| { CCI_REG8(0x3BA7), 0x1A }, |
| { CCI_REG8(0x3BA8), 0x1A }, |
| { CCI_REG8(0x3BA9), 0x1A }, |
| { CCI_REG8(0x3BAC), 0xED }, |
| { CCI_REG8(0x3BAD), 0x01 }, |
| { CCI_REG8(0x3BAE), 0xF6 }, |
| { CCI_REG8(0x3BAF), 0x02 }, |
| { CCI_REG8(0x3BB0), 0xA2 }, |
| { CCI_REG8(0x3BB1), 0x03 }, |
| { CCI_REG8(0x3BB2), 0xE0 }, |
| { CCI_REG8(0x3BB3), 0x03 }, |
| { CCI_REG8(0x3BB4), 0xE0 }, |
| { CCI_REG8(0x3BB5), 0x03 }, |
| { CCI_REG8(0x3BB6), 0xE0 }, |
| { CCI_REG8(0x3BB7), 0x03 }, |
| { CCI_REG8(0x3BB8), 0xE0 }, |
| { CCI_REG8(0x3BBA), 0xE0 }, |
| { CCI_REG8(0x3BBC), 0xDA }, |
| { CCI_REG8(0x3BBE), 0x88 }, |
| { CCI_REG8(0x3BC0), 0x44 }, |
| { CCI_REG8(0x3BC2), 0x7B }, |
| { CCI_REG8(0x3BC4), 0xA2 }, |
| { CCI_REG8(0x3BC8), 0xBD }, |
| { CCI_REG8(0x3BCA), 0xBD }, |
| }; |
| |
| static inline struct imx415 *to_imx415(struct v4l2_subdev *sd) |
| { |
| return container_of(sd, struct imx415, subdev); |
| } |
| |
| static int imx415_set_testpattern(struct imx415 *sensor, int val) |
| { |
| int ret = 0; |
| |
| if (val) { |
| cci_write(sensor->regmap, IMX415_BLKLEVEL, 0x00, &ret); |
| cci_write(sensor->regmap, IMX415_TPG_EN_DUOUT, 0x01, &ret); |
| cci_write(sensor->regmap, IMX415_TPG_PATSEL_DUOUT, |
| val - 1, &ret); |
| cci_write(sensor->regmap, IMX415_TPG_COLORWIDTH, 0x01, &ret); |
| cci_write(sensor->regmap, IMX415_TESTCLKEN_MIPI, 0x20, &ret); |
| cci_write(sensor->regmap, IMX415_DIG_CLP_MODE, 0x00, &ret); |
| cci_write(sensor->regmap, IMX415_WRJ_OPEN, 0x00, &ret); |
| } else { |
| cci_write(sensor->regmap, IMX415_BLKLEVEL, |
| IMX415_BLKLEVEL_DEFAULT, &ret); |
| cci_write(sensor->regmap, IMX415_TPG_EN_DUOUT, 0x00, &ret); |
| cci_write(sensor->regmap, IMX415_TESTCLKEN_MIPI, 0x00, &ret); |
| cci_write(sensor->regmap, IMX415_DIG_CLP_MODE, 0x01, &ret); |
| cci_write(sensor->regmap, IMX415_WRJ_OPEN, 0x01, &ret); |
| } |
| return 0; |
| } |
| |
| static int imx415_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct imx415 *sensor = container_of(ctrl->handler, struct imx415, |
| ctrls); |
| const struct v4l2_mbus_framefmt *format; |
| struct v4l2_subdev_state *state; |
| u32 exposure_max; |
| unsigned int vmax; |
| unsigned int flip; |
| int ret; |
| |
| state = v4l2_subdev_get_locked_active_state(&sensor->subdev); |
| format = v4l2_subdev_state_get_format(state, 0); |
| |
| if (ctrl->id == V4L2_CID_VBLANK) { |
| exposure_max = format->height + ctrl->val - |
| IMX415_EXPOSURE_OFFSET; |
| __v4l2_ctrl_modify_range(sensor->exposure, |
| sensor->exposure->minimum, |
| exposure_max, sensor->exposure->step, |
| sensor->exposure->default_value); |
| } |
| |
| if (!pm_runtime_get_if_in_use(sensor->dev)) |
| return 0; |
| |
| switch (ctrl->id) { |
| case V4L2_CID_VBLANK: |
| ret = cci_write(sensor->regmap, IMX415_VMAX, |
| format->height + ctrl->val, NULL); |
| if (ret) |
| return ret; |
| /* |
| * Exposure is set based on VMAX which has just changed, so |
| * program exposure register as well |
| */ |
| ctrl = sensor->exposure; |
| fallthrough; |
| case V4L2_CID_EXPOSURE: |
| /* clamp the exposure value to VMAX. */ |
| vmax = format->height + sensor->vblank->cur.val; |
| ctrl->val = min_t(int, ctrl->val, vmax); |
| ret = cci_write(sensor->regmap, IMX415_SHR0, |
| vmax - ctrl->val, NULL); |
| break; |
| |
| case V4L2_CID_ANALOGUE_GAIN: |
| /* analogue gain in 0.3 dB step size */ |
| ret = cci_write(sensor->regmap, IMX415_GAIN_PCG_0, |
| ctrl->val, NULL); |
| break; |
| |
| case V4L2_CID_HFLIP: |
| case V4L2_CID_VFLIP: |
| flip = (sensor->hflip->val << IMX415_HREVERSE_SHIFT) | |
| (sensor->vflip->val << IMX415_VREVERSE_SHIFT); |
| ret = cci_write(sensor->regmap, IMX415_REVERSE, flip, NULL); |
| break; |
| |
| case V4L2_CID_TEST_PATTERN: |
| ret = imx415_set_testpattern(sensor, ctrl->val); |
| break; |
| |
| case V4L2_CID_HBLANK: |
| ret = cci_write(sensor->regmap, IMX415_HMAX, |
| (format->width + ctrl->val) / |
| IMX415_HMAX_MULTIPLIER, |
| NULL); |
| break; |
| |
| default: |
| ret = -EINVAL; |
| break; |
| } |
| |
| pm_runtime_put(sensor->dev); |
| |
| return ret; |
| } |
| |
| static const struct v4l2_ctrl_ops imx415_ctrl_ops = { |
| .s_ctrl = imx415_s_ctrl, |
| }; |
| |
| static int imx415_ctrls_init(struct imx415 *sensor) |
| { |
| struct v4l2_fwnode_device_properties props; |
| struct v4l2_ctrl *ctrl; |
| const struct imx415_mode *cur_mode = &supported_modes[sensor->cur_mode]; |
| u64 lane_rate = cur_mode->lane_rate; |
| u32 exposure_max = IMX415_PIXEL_ARRAY_HEIGHT + |
| IMX415_PIXEL_ARRAY_VBLANK - |
| IMX415_EXPOSURE_OFFSET; |
| u32 hblank_min, hblank_max; |
| unsigned int i; |
| int ret; |
| |
| ret = v4l2_fwnode_device_parse(sensor->dev, &props); |
| if (ret < 0) |
| return ret; |
| |
| v4l2_ctrl_handler_init(&sensor->ctrls, 10); |
| |
| for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); ++i) { |
| if (lane_rate == link_freq_menu_items[i] * 2) |
| break; |
| } |
| if (i == ARRAY_SIZE(link_freq_menu_items)) { |
| return dev_err_probe(sensor->dev, -EINVAL, |
| "lane rate %llu not supported\n", |
| lane_rate); |
| } |
| |
| ctrl = v4l2_ctrl_new_int_menu(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_LINK_FREQ, |
| ARRAY_SIZE(link_freq_menu_items) - 1, i, |
| link_freq_menu_items); |
| |
| if (ctrl) |
| ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; |
| |
| sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_EXPOSURE, 4, |
| exposure_max, 1, exposure_max); |
| |
| v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_ANALOGUE_GAIN, IMX415_AGAIN_MIN, |
| IMX415_AGAIN_MAX, IMX415_AGAIN_STEP, |
| IMX415_AGAIN_MIN); |
| |
| hblank_min = (cur_mode->hmax_min[sensor->num_data_lanes == 2 ? 0 : 1] * |
| IMX415_HMAX_MULTIPLIER) - IMX415_PIXEL_ARRAY_WIDTH; |
| hblank_max = (IMX415_HMAX_MAX * IMX415_HMAX_MULTIPLIER) - |
| IMX415_PIXEL_ARRAY_WIDTH; |
| ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_HBLANK, hblank_min, |
| hblank_max, IMX415_HMAX_MULTIPLIER, |
| hblank_min); |
| |
| sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_VBLANK, |
| IMX415_PIXEL_ARRAY_VBLANK, |
| IMX415_VMAX_MAX - IMX415_PIXEL_ARRAY_HEIGHT, |
| 1, IMX415_PIXEL_ARRAY_VBLANK); |
| |
| v4l2_ctrl_new_std(&sensor->ctrls, NULL, V4L2_CID_PIXEL_RATE, |
| sensor->pixel_rate, sensor->pixel_rate, 1, |
| sensor->pixel_rate); |
| |
| sensor->hflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_HFLIP, 0, 1, 1, 0); |
| sensor->vflip = v4l2_ctrl_new_std(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_VFLIP, 0, 1, 1, 0); |
| |
| v4l2_ctrl_new_std_menu_items(&sensor->ctrls, &imx415_ctrl_ops, |
| V4L2_CID_TEST_PATTERN, |
| ARRAY_SIZE(imx415_test_pattern_menu) - 1, |
| 0, 0, imx415_test_pattern_menu); |
| |
| v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &imx415_ctrl_ops, |
| &props); |
| |
| if (sensor->ctrls.error) { |
| dev_err_probe(sensor->dev, sensor->ctrls.error, |
| "failed to add controls\n"); |
| v4l2_ctrl_handler_free(&sensor->ctrls); |
| return sensor->ctrls.error; |
| } |
| sensor->subdev.ctrl_handler = &sensor->ctrls; |
| |
| return 0; |
| } |
| |
| static int imx415_set_mode(struct imx415 *sensor, int mode) |
| { |
| int ret = 0; |
| |
| if (mode >= ARRAY_SIZE(supported_modes)) { |
| dev_err(sensor->dev, "Mode %d not supported\n", mode); |
| return -EINVAL; |
| } |
| |
| cci_multi_reg_write(sensor->regmap, |
| supported_modes[mode].reg_list.regs, |
| supported_modes[mode].reg_list.num_of_regs, |
| &ret); |
| |
| cci_multi_reg_write(sensor->regmap, |
| sensor->clk_params->regs, |
| IMX415_NUM_CLK_PARAM_REGS, |
| &ret); |
| |
| ret = cci_write(sensor->regmap, IMX415_LANEMODE, |
| sensor->num_data_lanes == 2 ? IMX415_LANEMODE_2 : |
| IMX415_LANEMODE_4, |
| NULL); |
| |
| return ret; |
| } |
| |
| static int imx415_setup(struct imx415 *sensor, struct v4l2_subdev_state *state) |
| { |
| int ret; |
| |
| ret = cci_multi_reg_write(sensor->regmap, |
| imx415_init_table, |
| ARRAY_SIZE(imx415_init_table), |
| NULL); |
| if (ret) |
| return ret; |
| |
| return imx415_set_mode(sensor, sensor->cur_mode); |
| } |
| |
| static int imx415_wakeup(struct imx415 *sensor) |
| { |
| int ret; |
| |
| ret = cci_write(sensor->regmap, IMX415_MODE, |
| IMX415_MODE_OPERATING, NULL); |
| if (ret) |
| return ret; |
| |
| /* |
| * According to the datasheet we have to wait at least 63 us after |
| * leaving standby mode. But this doesn't work even after 30 ms. |
| * So probably this should be 63 ms and therefore we wait for 80 ms. |
| */ |
| msleep(80); |
| |
| return 0; |
| } |
| |
| static int imx415_stream_on(struct imx415 *sensor) |
| { |
| int ret; |
| |
| ret = imx415_wakeup(sensor); |
| return cci_write(sensor->regmap, IMX415_XMSTA, |
| IMX415_XMSTA_START, &ret); |
| } |
| |
| static int imx415_stream_off(struct imx415 *sensor) |
| { |
| int ret; |
| |
| ret = cci_write(sensor->regmap, IMX415_XMSTA, |
| IMX415_XMSTA_STOP, NULL); |
| return cci_write(sensor->regmap, IMX415_MODE, |
| IMX415_MODE_STANDBY, &ret); |
| } |
| |
| static int imx415_s_stream(struct v4l2_subdev *sd, int enable) |
| { |
| struct imx415 *sensor = to_imx415(sd); |
| struct v4l2_subdev_state *state; |
| int ret; |
| |
| state = v4l2_subdev_lock_and_get_active_state(sd); |
| |
| if (!enable) { |
| ret = imx415_stream_off(sensor); |
| |
| pm_runtime_mark_last_busy(sensor->dev); |
| pm_runtime_put_autosuspend(sensor->dev); |
| |
| goto unlock; |
| } |
| |
| ret = pm_runtime_resume_and_get(sensor->dev); |
| if (ret < 0) |
| goto unlock; |
| |
| ret = imx415_setup(sensor, state); |
| if (ret) |
| goto err_pm; |
| |
| ret = __v4l2_ctrl_handler_setup(&sensor->ctrls); |
| if (ret < 0) |
| goto err_pm; |
| |
| ret = imx415_stream_on(sensor); |
| if (ret) |
| goto err_pm; |
| |
| ret = 0; |
| |
| unlock: |
| v4l2_subdev_unlock_state(state); |
| |
| return ret; |
| |
| err_pm: |
| /* |
| * In case of error, turn the power off synchronously as the device |
| * likely has no other chance to recover. |
| */ |
| pm_runtime_put_sync(sensor->dev); |
| |
| goto unlock; |
| } |
| |
| static int imx415_enum_mbus_code(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *state, |
| struct v4l2_subdev_mbus_code_enum *code) |
| { |
| if (code->index != 0) |
| return -EINVAL; |
| |
| code->code = MEDIA_BUS_FMT_SGBRG10_1X10; |
| |
| return 0; |
| } |
| |
| static int imx415_enum_frame_size(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *state, |
| struct v4l2_subdev_frame_size_enum *fse) |
| { |
| const struct v4l2_mbus_framefmt *format; |
| |
| format = v4l2_subdev_state_get_format(state, fse->pad); |
| |
| if (fse->index > 0 || fse->code != format->code) |
| return -EINVAL; |
| |
| fse->min_width = IMX415_PIXEL_ARRAY_WIDTH; |
| fse->max_width = fse->min_width; |
| fse->min_height = IMX415_PIXEL_ARRAY_HEIGHT; |
| fse->max_height = fse->min_height; |
| return 0; |
| } |
| |
| static int imx415_set_format(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *state, |
| struct v4l2_subdev_format *fmt) |
| { |
| struct v4l2_mbus_framefmt *format; |
| |
| format = v4l2_subdev_state_get_format(state, fmt->pad); |
| |
| format->width = fmt->format.width; |
| format->height = fmt->format.height; |
| format->code = MEDIA_BUS_FMT_SGBRG10_1X10; |
| format->field = V4L2_FIELD_NONE; |
| format->colorspace = V4L2_COLORSPACE_RAW; |
| format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; |
| format->quantization = V4L2_QUANTIZATION_DEFAULT; |
| format->xfer_func = V4L2_XFER_FUNC_NONE; |
| |
| fmt->format = *format; |
| return 0; |
| } |
| |
| static int imx415_get_selection(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *sd_state, |
| struct v4l2_subdev_selection *sel) |
| { |
| switch (sel->target) { |
| case V4L2_SEL_TGT_CROP: |
| case V4L2_SEL_TGT_CROP_DEFAULT: |
| case V4L2_SEL_TGT_CROP_BOUNDS: |
| sel->r.top = IMX415_PIXEL_ARRAY_TOP; |
| sel->r.left = IMX415_PIXEL_ARRAY_LEFT; |
| sel->r.width = IMX415_PIXEL_ARRAY_WIDTH; |
| sel->r.height = IMX415_PIXEL_ARRAY_HEIGHT; |
| |
| return 0; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int imx415_init_state(struct v4l2_subdev *sd, |
| struct v4l2_subdev_state *state) |
| { |
| struct v4l2_subdev_format format = { |
| .format = { |
| .width = IMX415_PIXEL_ARRAY_WIDTH, |
| .height = IMX415_PIXEL_ARRAY_HEIGHT, |
| }, |
| }; |
| |
| imx415_set_format(sd, state, &format); |
| |
| return 0; |
| } |
| |
| static const struct v4l2_subdev_video_ops imx415_subdev_video_ops = { |
| .s_stream = imx415_s_stream, |
| }; |
| |
| static const struct v4l2_subdev_pad_ops imx415_subdev_pad_ops = { |
| .enum_mbus_code = imx415_enum_mbus_code, |
| .enum_frame_size = imx415_enum_frame_size, |
| .get_fmt = v4l2_subdev_get_fmt, |
| .set_fmt = imx415_set_format, |
| .get_selection = imx415_get_selection, |
| }; |
| |
| static const struct v4l2_subdev_ops imx415_subdev_ops = { |
| .video = &imx415_subdev_video_ops, |
| .pad = &imx415_subdev_pad_ops, |
| }; |
| |
| static const struct v4l2_subdev_internal_ops imx415_internal_ops = { |
| .init_state = imx415_init_state, |
| }; |
| |
| static int imx415_subdev_init(struct imx415 *sensor) |
| { |
| struct i2c_client *client = to_i2c_client(sensor->dev); |
| int ret; |
| |
| v4l2_i2c_subdev_init(&sensor->subdev, client, &imx415_subdev_ops); |
| sensor->subdev.internal_ops = &imx415_internal_ops; |
| |
| ret = imx415_ctrls_init(sensor); |
| if (ret) |
| return ret; |
| |
| sensor->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
| sensor->pad.flags = MEDIA_PAD_FL_SOURCE; |
| sensor->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR; |
| ret = media_entity_pads_init(&sensor->subdev.entity, 1, &sensor->pad); |
| if (ret < 0) { |
| v4l2_ctrl_handler_free(&sensor->ctrls); |
| return ret; |
| } |
| |
| sensor->subdev.state_lock = sensor->subdev.ctrl_handler->lock; |
| v4l2_subdev_init_finalize(&sensor->subdev); |
| |
| return 0; |
| } |
| |
| static void imx415_subdev_cleanup(struct imx415 *sensor) |
| { |
| media_entity_cleanup(&sensor->subdev.entity); |
| v4l2_ctrl_handler_free(&sensor->ctrls); |
| } |
| |
| static int imx415_power_on(struct imx415 *sensor) |
| { |
| int ret; |
| |
| ret = regulator_bulk_enable(ARRAY_SIZE(sensor->supplies), |
| sensor->supplies); |
| if (ret < 0) |
| return ret; |
| |
| gpiod_set_value_cansleep(sensor->reset, 0); |
| |
| udelay(1); |
| |
| ret = clk_prepare_enable(sensor->clk); |
| if (ret < 0) |
| goto err_reset; |
| |
| /* |
| * Data sheet states that 20 us are required before communication start, |
| * but this doesn't work in all cases. Use 100 us to be on the safe |
| * side. |
| */ |
| usleep_range(100, 200); |
| |
| return 0; |
| |
| err_reset: |
| gpiod_set_value_cansleep(sensor->reset, 1); |
| regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies); |
| return ret; |
| } |
| |
| static void imx415_power_off(struct imx415 *sensor) |
| { |
| clk_disable_unprepare(sensor->clk); |
| gpiod_set_value_cansleep(sensor->reset, 1); |
| regulator_bulk_disable(ARRAY_SIZE(sensor->supplies), sensor->supplies); |
| } |
| |
| static int imx415_identify_model(struct imx415 *sensor) |
| { |
| int model, ret; |
| u64 chip_id; |
| |
| /* |
| * While most registers can be read when the sensor is in standby, this |
| * is not the case of the sensor info register :-( |
| */ |
| ret = imx415_wakeup(sensor); |
| if (ret) |
| return dev_err_probe(sensor->dev, ret, |
| "failed to get sensor out of standby\n"); |
| |
| ret = cci_read(sensor->regmap, IMX415_SENSOR_INFO, &chip_id, NULL); |
| if (ret < 0) { |
| dev_err_probe(sensor->dev, ret, |
| "failed to read sensor information\n"); |
| goto done; |
| } |
| |
| model = chip_id & IMX415_SENSOR_INFO_MASK; |
| |
| switch (model) { |
| case IMX415_CHIP_ID: |
| dev_info(sensor->dev, "Detected IMX415 image sensor\n"); |
| break; |
| default: |
| ret = dev_err_probe(sensor->dev, -ENODEV, |
| "invalid device model 0x%04x\n", model); |
| goto done; |
| } |
| |
| ret = 0; |
| |
| done: |
| cci_write(sensor->regmap, IMX415_MODE, IMX415_MODE_STANDBY, &ret); |
| return ret; |
| } |
| |
| static int imx415_check_inck(unsigned long inck, u64 link_frequency) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(imx415_clk_params); ++i) { |
| if ((imx415_clk_params[i].lane_rate == link_frequency * 2) && |
| imx415_clk_params[i].inck == inck) |
| break; |
| } |
| |
| if (i == ARRAY_SIZE(imx415_clk_params)) |
| return -EINVAL; |
| else |
| return 0; |
| } |
| |
| static int imx415_parse_hw_config(struct imx415 *sensor) |
| { |
| struct v4l2_fwnode_endpoint bus_cfg = { |
| .bus_type = V4L2_MBUS_CSI2_DPHY, |
| }; |
| struct fwnode_handle *ep; |
| u64 lane_rate; |
| unsigned long inck; |
| unsigned int i, j; |
| int ret; |
| |
| for (i = 0; i < ARRAY_SIZE(sensor->supplies); ++i) |
| sensor->supplies[i].supply = imx415_supply_names[i]; |
| |
| ret = devm_regulator_bulk_get(sensor->dev, ARRAY_SIZE(sensor->supplies), |
| sensor->supplies); |
| if (ret) |
| return dev_err_probe(sensor->dev, ret, |
| "failed to get supplies\n"); |
| |
| sensor->reset = devm_gpiod_get_optional(sensor->dev, "reset", |
| GPIOD_OUT_HIGH); |
| if (IS_ERR(sensor->reset)) |
| return dev_err_probe(sensor->dev, PTR_ERR(sensor->reset), |
| "failed to get reset GPIO\n"); |
| |
| sensor->clk = devm_clk_get(sensor->dev, NULL); |
| if (IS_ERR(sensor->clk)) |
| return dev_err_probe(sensor->dev, PTR_ERR(sensor->clk), |
| "failed to get clock\n"); |
| |
| ep = fwnode_graph_get_next_endpoint(dev_fwnode(sensor->dev), NULL); |
| if (!ep) |
| return -ENXIO; |
| |
| ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); |
| fwnode_handle_put(ep); |
| if (ret) |
| return ret; |
| |
| switch (bus_cfg.bus.mipi_csi2.num_data_lanes) { |
| case 2: |
| case 4: |
| sensor->num_data_lanes = bus_cfg.bus.mipi_csi2.num_data_lanes; |
| break; |
| default: |
| ret = dev_err_probe(sensor->dev, -EINVAL, |
| "invalid number of CSI2 data lanes %d\n", |
| bus_cfg.bus.mipi_csi2.num_data_lanes); |
| goto done_endpoint_free; |
| } |
| |
| if (!bus_cfg.nr_of_link_frequencies) { |
| ret = dev_err_probe(sensor->dev, -EINVAL, |
| "no link frequencies defined"); |
| goto done_endpoint_free; |
| } |
| |
| /* |
| * Check if there exists a sensor mode defined for current INCK, |
| * number of lanes and given lane rates. |
| */ |
| inck = clk_get_rate(sensor->clk); |
| for (i = 0; i < bus_cfg.nr_of_link_frequencies; ++i) { |
| if (imx415_check_inck(inck, bus_cfg.link_frequencies[i])) { |
| dev_dbg(sensor->dev, |
| "INCK %lu Hz not supported for this link freq", |
| inck); |
| continue; |
| } |
| |
| for (j = 0; j < ARRAY_SIZE(supported_modes); ++j) { |
| if (bus_cfg.link_frequencies[i] * 2 != |
| supported_modes[j].lane_rate) |
| continue; |
| sensor->cur_mode = j; |
| break; |
| } |
| if (j < ARRAY_SIZE(supported_modes)) |
| break; |
| } |
| if (i == bus_cfg.nr_of_link_frequencies) { |
| ret = dev_err_probe(sensor->dev, -EINVAL, |
| "no valid sensor mode defined\n"); |
| goto done_endpoint_free; |
| } |
| switch (inck) { |
| case 27000000: |
| case 37125000: |
| case 74250000: |
| sensor->pixel_rate = IMX415_PIXEL_RATE_74_25MHZ; |
| break; |
| case 24000000: |
| case 72000000: |
| sensor->pixel_rate = IMX415_PIXEL_RATE_72MHZ; |
| break; |
| } |
| |
| lane_rate = supported_modes[sensor->cur_mode].lane_rate; |
| for (i = 0; i < ARRAY_SIZE(imx415_clk_params); ++i) { |
| if (lane_rate == imx415_clk_params[i].lane_rate && |
| inck == imx415_clk_params[i].inck) { |
| sensor->clk_params = &imx415_clk_params[i]; |
| break; |
| } |
| } |
| if (i == ARRAY_SIZE(imx415_clk_params)) { |
| ret = dev_err_probe(sensor->dev, -EINVAL, |
| "Mode %d not supported\n", |
| sensor->cur_mode); |
| goto done_endpoint_free; |
| } |
| |
| ret = 0; |
| dev_dbg(sensor->dev, "clock: %lu Hz, lane_rate: %llu bps, lanes: %d\n", |
| inck, lane_rate, sensor->num_data_lanes); |
| |
| done_endpoint_free: |
| v4l2_fwnode_endpoint_free(&bus_cfg); |
| |
| return ret; |
| } |
| |
| static int imx415_probe(struct i2c_client *client) |
| { |
| struct imx415 *sensor; |
| int ret; |
| |
| sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL); |
| if (!sensor) |
| return -ENOMEM; |
| |
| sensor->dev = &client->dev; |
| |
| ret = imx415_parse_hw_config(sensor); |
| if (ret) |
| return ret; |
| |
| sensor->regmap = devm_cci_regmap_init_i2c(client, 16); |
| if (IS_ERR(sensor->regmap)) |
| return PTR_ERR(sensor->regmap); |
| |
| /* |
| * Enable power management. The driver supports runtime PM, but needs to |
| * work when runtime PM is disabled in the kernel. To that end, power |
| * the sensor on manually here, identify it, and fully initialize it. |
| */ |
| ret = imx415_power_on(sensor); |
| if (ret) |
| return ret; |
| |
| ret = imx415_identify_model(sensor); |
| if (ret) |
| goto err_power; |
| |
| ret = imx415_subdev_init(sensor); |
| if (ret) |
| goto err_power; |
| |
| /* |
| * Enable runtime PM. As the device has been powered manually, mark it |
| * as active, and increase the usage count without resuming the device. |
| */ |
| pm_runtime_set_active(sensor->dev); |
| pm_runtime_get_noresume(sensor->dev); |
| pm_runtime_enable(sensor->dev); |
| |
| ret = v4l2_async_register_subdev_sensor(&sensor->subdev); |
| if (ret < 0) |
| goto err_pm; |
| |
| /* |
| * Finally, enable autosuspend and decrease the usage count. The device |
| * will get suspended after the autosuspend delay, turning the power |
| * off. |
| */ |
| pm_runtime_set_autosuspend_delay(sensor->dev, 1000); |
| pm_runtime_use_autosuspend(sensor->dev); |
| pm_runtime_put_autosuspend(sensor->dev); |
| |
| return 0; |
| |
| err_pm: |
| pm_runtime_disable(sensor->dev); |
| pm_runtime_put_noidle(sensor->dev); |
| imx415_subdev_cleanup(sensor); |
| err_power: |
| imx415_power_off(sensor); |
| return ret; |
| } |
| |
| static void imx415_remove(struct i2c_client *client) |
| { |
| struct v4l2_subdev *subdev = i2c_get_clientdata(client); |
| struct imx415 *sensor = to_imx415(subdev); |
| |
| v4l2_async_unregister_subdev(subdev); |
| |
| imx415_subdev_cleanup(sensor); |
| |
| /* |
| * Disable runtime PM. In case runtime PM is disabled in the kernel, |
| * make sure to turn power off manually. |
| */ |
| pm_runtime_disable(sensor->dev); |
| if (!pm_runtime_status_suspended(sensor->dev)) |
| imx415_power_off(sensor); |
| pm_runtime_set_suspended(sensor->dev); |
| } |
| |
| static int imx415_runtime_resume(struct device *dev) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct v4l2_subdev *subdev = i2c_get_clientdata(client); |
| struct imx415 *sensor = to_imx415(subdev); |
| |
| return imx415_power_on(sensor); |
| } |
| |
| static int imx415_runtime_suspend(struct device *dev) |
| { |
| struct i2c_client *client = to_i2c_client(dev); |
| struct v4l2_subdev *subdev = i2c_get_clientdata(client); |
| struct imx415 *sensor = to_imx415(subdev); |
| |
| imx415_power_off(sensor); |
| |
| return 0; |
| } |
| |
| static DEFINE_RUNTIME_DEV_PM_OPS(imx415_pm_ops, imx415_runtime_suspend, |
| imx415_runtime_resume, NULL); |
| |
| static const struct of_device_id imx415_of_match[] = { |
| { .compatible = "sony,imx415" }, |
| { /* sentinel */ } |
| }; |
| |
| MODULE_DEVICE_TABLE(of, imx415_of_match); |
| |
| static struct i2c_driver imx415_driver = { |
| .probe = imx415_probe, |
| .remove = imx415_remove, |
| .driver = { |
| .name = "imx415", |
| .of_match_table = imx415_of_match, |
| .pm = pm_ptr(&imx415_pm_ops), |
| }, |
| }; |
| |
| module_i2c_driver(imx415_driver); |
| |
| MODULE_DESCRIPTION("Sony IMX415 image sensor driver"); |
| MODULE_AUTHOR("Gerald Loacker <gerald.loacker@wolfvision.net>"); |
| MODULE_AUTHOR("Michael Riesch <michael.riesch@wolfvision.net>"); |
| MODULE_LICENSE("GPL"); |
