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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Copyright (C) 2020 Bootlin
- * Author: Paul Kocialkowski <[email protected]>
- */
- #include <linux/clk.h>
- #include <linux/delay.h>
- #include <linux/device.h>
- #include <linux/i2c.h>
- #include <linux/module.h>
- #include <linux/of_graph.h>
- #include <linux/pm_runtime.h>
- #include <linux/regulator/consumer.h>
- #include <linux/videodev2.h>
- #include <media/v4l2-ctrls.h>
- #include <media/v4l2-device.h>
- #include <media/v4l2-fwnode.h>
- #include <media/v4l2-image-sizes.h>
- #include <media/v4l2-mediabus.h>
- /* Clock rate */
- #define OV5648_XVCLK_RATE 24000000
- /* Register definitions */
- /* System */
- #define OV5648_SW_STANDBY_REG 0x100
- #define OV5648_SW_STANDBY_STREAM_ON BIT(0)
- #define OV5648_SW_RESET_REG 0x103
- #define OV5648_SW_RESET_RESET BIT(0)
- #define OV5648_PAD_OEN0_REG 0x3000
- #define OV5648_PAD_OEN1_REG 0x3001
- #define OV5648_PAD_OEN2_REG 0x3002
- #define OV5648_PAD_OUT0_REG 0x3008
- #define OV5648_PAD_OUT1_REG 0x3009
- #define OV5648_CHIP_ID_H_REG 0x300a
- #define OV5648_CHIP_ID_H_VALUE 0x56
- #define OV5648_CHIP_ID_L_REG 0x300b
- #define OV5648_CHIP_ID_L_VALUE 0x48
- #define OV5648_PAD_OUT2_REG 0x300d
- #define OV5648_PAD_SEL0_REG 0x300e
- #define OV5648_PAD_SEL1_REG 0x300f
- #define OV5648_PAD_SEL2_REG 0x3010
- #define OV5648_PAD_PK_REG 0x3011
- #define OV5648_PAD_PK_PD_DATO_EN BIT(7)
- #define OV5648_PAD_PK_DRIVE_STRENGTH_1X (0 << 5)
- #define OV5648_PAD_PK_DRIVE_STRENGTH_2X (2 << 5)
- #define OV5648_PAD_PK_FREX_N BIT(1)
- #define OV5648_A_PWC_PK_O0_REG 0x3013
- #define OV5648_A_PWC_PK_O0_BP_REGULATOR_N BIT(3)
- #define OV5648_A_PWC_PK_O1_REG 0x3014
- #define OV5648_MIPI_PHY0_REG 0x3016
- #define OV5648_MIPI_PHY1_REG 0x3017
- #define OV5648_MIPI_SC_CTRL0_REG 0x3018
- #define OV5648_MIPI_SC_CTRL0_MIPI_LANES(v) (((v) << 5) & GENMASK(7, 5))
- #define OV5648_MIPI_SC_CTRL0_PHY_HS_TX_PD BIT(4)
- #define OV5648_MIPI_SC_CTRL0_PHY_LP_RX_PD BIT(3)
- #define OV5648_MIPI_SC_CTRL0_MIPI_EN BIT(2)
- #define OV5648_MIPI_SC_CTRL0_MIPI_SUSP BIT(1)
- #define OV5648_MIPI_SC_CTRL0_LANE_DIS_OP BIT(0)
- #define OV5648_MIPI_SC_CTRL1_REG 0x3019
- #define OV5648_MISC_CTRL0_REG 0x3021
- #define OV5648_MIPI_SC_CTRL2_REG 0x3022
- #define OV5648_SUB_ID_REG 0x302a
- #define OV5648_PLL_CTRL0_REG 0x3034
- #define OV5648_PLL_CTRL0_PLL_CHARGE_PUMP(v) (((v) << 4) & GENMASK(6, 4))
- #define OV5648_PLL_CTRL0_BITS(v) ((v) & GENMASK(3, 0))
- #define OV5648_PLL_CTRL1_REG 0x3035
- #define OV5648_PLL_CTRL1_SYS_DIV(v) (((v) << 4) & GENMASK(7, 4))
- #define OV5648_PLL_CTRL1_MIPI_DIV(v) ((v) & GENMASK(3, 0))
- #define OV5648_PLL_MUL_REG 0x3036
- #define OV5648_PLL_MUL(v) ((v) & GENMASK(7, 0))
- #define OV5648_PLL_DIV_REG 0x3037
- #define OV5648_PLL_DIV_ROOT_DIV(v) ((((v) - 1) << 4) & BIT(4))
- #define OV5648_PLL_DIV_PLL_PRE_DIV(v) ((v) & GENMASK(3, 0))
- #define OV5648_PLL_DEBUG_REG 0x3038
- #define OV5648_PLL_BYPASS_REG 0x3039
- #define OV5648_PLLS_BYPASS_REG 0x303a
- #define OV5648_PLLS_MUL_REG 0x303b
- #define OV5648_PLLS_MUL(v) ((v) & GENMASK(4, 0))
- #define OV5648_PLLS_CTRL_REG 0x303c
- #define OV5648_PLLS_CTRL_PLL_CHARGE_PUMP(v) (((v) << 4) & GENMASK(6, 4))
- #define OV5648_PLLS_CTRL_SYS_DIV(v) ((v) & GENMASK(3, 0))
- #define OV5648_PLLS_DIV_REG 0x303d
- #define OV5648_PLLS_DIV_PLLS_PRE_DIV(v) (((v) << 4) & GENMASK(5, 4))
- #define OV5648_PLLS_DIV_PLLS_DIV_R(v) ((((v) - 1) << 2) & BIT(2))
- #define OV5648_PLLS_DIV_PLLS_SEL_DIV(v) ((v) & GENMASK(1, 0))
- #define OV5648_SRB_CTRL_REG 0x3106
- #define OV5648_SRB_CTRL_SCLK_DIV(v) (((v) << 2) & GENMASK(3, 2))
- #define OV5648_SRB_CTRL_RESET_ARBITER_EN BIT(1)
- #define OV5648_SRB_CTRL_SCLK_ARBITER_EN BIT(0)
- /* Group Hold */
- #define OV5648_GROUP_ADR0_REG 0x3200
- #define OV5648_GROUP_ADR1_REG 0x3201
- #define OV5648_GROUP_ADR2_REG 0x3202
- #define OV5648_GROUP_ADR3_REG 0x3203
- #define OV5648_GROUP_LEN0_REG 0x3204
- #define OV5648_GROUP_LEN1_REG 0x3205
- #define OV5648_GROUP_LEN2_REG 0x3206
- #define OV5648_GROUP_LEN3_REG 0x3207
- #define OV5648_GROUP_ACCESS_REG 0x3208
- /* Exposure/gain/banding */
- #define OV5648_EXPOSURE_CTRL_HH_REG 0x3500
- #define OV5648_EXPOSURE_CTRL_HH(v) (((v) & GENMASK(19, 16)) >> 16)
- #define OV5648_EXPOSURE_CTRL_HH_VALUE(v) (((v) << 16) & GENMASK(19, 16))
- #define OV5648_EXPOSURE_CTRL_H_REG 0x3501
- #define OV5648_EXPOSURE_CTRL_H(v) (((v) & GENMASK(15, 8)) >> 8)
- #define OV5648_EXPOSURE_CTRL_H_VALUE(v) (((v) << 8) & GENMASK(15, 8))
- #define OV5648_EXPOSURE_CTRL_L_REG 0x3502
- #define OV5648_EXPOSURE_CTRL_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_EXPOSURE_CTRL_L_VALUE(v) ((v) & GENMASK(7, 0))
- #define OV5648_MANUAL_CTRL_REG 0x3503
- #define OV5648_MANUAL_CTRL_FRAME_DELAY(v) (((v) << 4) & GENMASK(5, 4))
- #define OV5648_MANUAL_CTRL_AGC_MANUAL_EN BIT(1)
- #define OV5648_MANUAL_CTRL_AEC_MANUAL_EN BIT(0)
- #define OV5648_GAIN_CTRL_H_REG 0x350a
- #define OV5648_GAIN_CTRL_H(v) (((v) & GENMASK(9, 8)) >> 8)
- #define OV5648_GAIN_CTRL_H_VALUE(v) (((v) << 8) & GENMASK(9, 8))
- #define OV5648_GAIN_CTRL_L_REG 0x350b
- #define OV5648_GAIN_CTRL_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_GAIN_CTRL_L_VALUE(v) ((v) & GENMASK(7, 0))
- #define OV5648_ANALOG_CTRL0_REG_BASE 0x3600
- #define OV5648_ANALOG_CTRL1_REG_BASE 0x3700
- #define OV5648_AEC_CTRL0_REG 0x3a00
- #define OV5648_AEC_CTRL0_DEBUG BIT(6)
- #define OV5648_AEC_CTRL0_DEBAND_EN BIT(5)
- #define OV5648_AEC_CTRL0_DEBAND_LOW_LIMIT_EN BIT(4)
- #define OV5648_AEC_CTRL0_START_SEL_EN BIT(3)
- #define OV5648_AEC_CTRL0_NIGHT_MODE_EN BIT(2)
- #define OV5648_AEC_CTRL0_FREEZE_EN BIT(0)
- #define OV5648_EXPOSURE_MIN_REG 0x3a01
- #define OV5648_EXPOSURE_MAX_60_H_REG 0x3a02
- #define OV5648_EXPOSURE_MAX_60_L_REG 0x3a03
- #define OV5648_AEC_CTRL5_REG 0x3a05
- #define OV5648_AEC_CTRL6_REG 0x3a06
- #define OV5648_AEC_CTRL7_REG 0x3a07
- #define OV5648_BANDING_STEP_50_H_REG 0x3a08
- #define OV5648_BANDING_STEP_50_L_REG 0x3a09
- #define OV5648_BANDING_STEP_60_H_REG 0x3a0a
- #define OV5648_BANDING_STEP_60_L_REG 0x3a0b
- #define OV5648_AEC_CTRLC_REG 0x3a0c
- #define OV5648_BANDING_MAX_60_REG 0x3a0d
- #define OV5648_BANDING_MAX_50_REG 0x3a0e
- #define OV5648_WPT_REG 0x3a0f
- #define OV5648_BPT_REG 0x3a10
- #define OV5648_VPT_HIGH_REG 0x3a11
- #define OV5648_AVG_MANUAL_REG 0x3a12
- #define OV5648_PRE_GAIN_REG 0x3a13
- #define OV5648_EXPOSURE_MAX_50_H_REG 0x3a14
- #define OV5648_EXPOSURE_MAX_50_L_REG 0x3a15
- #define OV5648_GAIN_BASE_NIGHT_REG 0x3a17
- #define OV5648_AEC_GAIN_CEILING_H_REG 0x3a18
- #define OV5648_AEC_GAIN_CEILING_L_REG 0x3a19
- #define OV5648_DIFF_MAX_REG 0x3a1a
- #define OV5648_WPT2_REG 0x3a1b
- #define OV5648_LED_ADD_ROW_H_REG 0x3a1c
- #define OV5648_LED_ADD_ROW_L_REG 0x3a1d
- #define OV5648_BPT2_REG 0x3a1e
- #define OV5648_VPT_LOW_REG 0x3a1f
- #define OV5648_AEC_CTRL20_REG 0x3a20
- #define OV5648_AEC_CTRL21_REG 0x3a21
- #define OV5648_AVG_START_X_H_REG 0x5680
- #define OV5648_AVG_START_X_L_REG 0x5681
- #define OV5648_AVG_START_Y_H_REG 0x5682
- #define OV5648_AVG_START_Y_L_REG 0x5683
- #define OV5648_AVG_WINDOW_X_H_REG 0x5684
- #define OV5648_AVG_WINDOW_X_L_REG 0x5685
- #define OV5648_AVG_WINDOW_Y_H_REG 0x5686
- #define OV5648_AVG_WINDOW_Y_L_REG 0x5687
- #define OV5648_AVG_WEIGHT00_REG 0x5688
- #define OV5648_AVG_WEIGHT01_REG 0x5689
- #define OV5648_AVG_WEIGHT02_REG 0x568a
- #define OV5648_AVG_WEIGHT03_REG 0x568b
- #define OV5648_AVG_WEIGHT04_REG 0x568c
- #define OV5648_AVG_WEIGHT05_REG 0x568d
- #define OV5648_AVG_WEIGHT06_REG 0x568e
- #define OV5648_AVG_WEIGHT07_REG 0x568f
- #define OV5648_AVG_CTRL10_REG 0x5690
- #define OV5648_AVG_WEIGHT_SUM_REG 0x5691
- #define OV5648_AVG_READOUT_REG 0x5693
- #define OV5648_DIG_CTRL0_REG 0x5a00
- #define OV5648_DIG_COMP_MAN_H_REG 0x5a02
- #define OV5648_DIG_COMP_MAN_L_REG 0x5a03
- #define OV5648_GAINC_MAN_H_REG 0x5a20
- #define OV5648_GAINC_MAN_L_REG 0x5a21
- #define OV5648_GAINC_DGC_MAN_H_REG 0x5a22
- #define OV5648_GAINC_DGC_MAN_L_REG 0x5a23
- #define OV5648_GAINC_CTRL0_REG 0x5a24
- #define OV5648_GAINF_ANA_NUM_REG 0x5a40
- #define OV5648_GAINF_DIG_GAIN_REG 0x5a41
- /* Timing */
- #define OV5648_CROP_START_X_H_REG 0x3800
- #define OV5648_CROP_START_X_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_CROP_START_X_L_REG 0x3801
- #define OV5648_CROP_START_X_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_CROP_START_Y_H_REG 0x3802
- #define OV5648_CROP_START_Y_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_CROP_START_Y_L_REG 0x3803
- #define OV5648_CROP_START_Y_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_CROP_END_X_H_REG 0x3804
- #define OV5648_CROP_END_X_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_CROP_END_X_L_REG 0x3805
- #define OV5648_CROP_END_X_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_CROP_END_Y_H_REG 0x3806
- #define OV5648_CROP_END_Y_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_CROP_END_Y_L_REG 0x3807
- #define OV5648_CROP_END_Y_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_OUTPUT_SIZE_X_H_REG 0x3808
- #define OV5648_OUTPUT_SIZE_X_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_OUTPUT_SIZE_X_L_REG 0x3809
- #define OV5648_OUTPUT_SIZE_X_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_OUTPUT_SIZE_Y_H_REG 0x380a
- #define OV5648_OUTPUT_SIZE_Y_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_OUTPUT_SIZE_Y_L_REG 0x380b
- #define OV5648_OUTPUT_SIZE_Y_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_HTS_H_REG 0x380c
- #define OV5648_HTS_H(v) (((v) & GENMASK(12, 8)) >> 8)
- #define OV5648_HTS_L_REG 0x380d
- #define OV5648_HTS_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_VTS_H_REG 0x380e
- #define OV5648_VTS_H(v) (((v) & GENMASK(15, 8)) >> 8)
- #define OV5648_VTS_L_REG 0x380f
- #define OV5648_VTS_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_OFFSET_X_H_REG 0x3810
- #define OV5648_OFFSET_X_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_OFFSET_X_L_REG 0x3811
- #define OV5648_OFFSET_X_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_OFFSET_Y_H_REG 0x3812
- #define OV5648_OFFSET_Y_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_OFFSET_Y_L_REG 0x3813
- #define OV5648_OFFSET_Y_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_SUB_INC_X_REG 0x3814
- #define OV5648_SUB_INC_X_ODD(v) (((v) << 4) & GENMASK(7, 4))
- #define OV5648_SUB_INC_X_EVEN(v) ((v) & GENMASK(3, 0))
- #define OV5648_SUB_INC_Y_REG 0x3815
- #define OV5648_SUB_INC_Y_ODD(v) (((v) << 4) & GENMASK(7, 4))
- #define OV5648_SUB_INC_Y_EVEN(v) ((v) & GENMASK(3, 0))
- #define OV5648_HSYNCST_H_REG 0x3816
- #define OV5648_HSYNCST_H(v) (((v) >> 8) & 0xf)
- #define OV5648_HSYNCST_L_REG 0x3817
- #define OV5648_HSYNCST_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_HSYNCW_H_REG 0x3818
- #define OV5648_HSYNCW_H(v) (((v) >> 8) & 0xf)
- #define OV5648_HSYNCW_L_REG 0x3819
- #define OV5648_HSYNCW_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_TC20_REG 0x3820
- #define OV5648_TC20_DEBUG BIT(6)
- #define OV5648_TC20_FLIP_VERT_ISP_EN BIT(2)
- #define OV5648_TC20_FLIP_VERT_SENSOR_EN BIT(1)
- #define OV5648_TC20_BINNING_VERT_EN BIT(0)
- #define OV5648_TC21_REG 0x3821
- #define OV5648_TC21_FLIP_HORZ_ISP_EN BIT(2)
- #define OV5648_TC21_FLIP_HORZ_SENSOR_EN BIT(1)
- #define OV5648_TC21_BINNING_HORZ_EN BIT(0)
- /* Strobe/exposure */
- #define OV5648_STROBE_REG 0x3b00
- #define OV5648_FREX_EXP_HH_REG 0x3b01
- #define OV5648_SHUTTER_DLY_H_REG 0x3b02
- #define OV5648_SHUTTER_DLY_L_REG 0x3b03
- #define OV5648_FREX_EXP_H_REG 0x3b04
- #define OV5648_FREX_EXP_L_REG 0x3b05
- #define OV5648_FREX_CTRL_REG 0x3b06
- #define OV5648_FREX_MODE_SEL_REG 0x3b07
- #define OV5648_FREX_MODE_SEL_FREX_SA1 BIT(4)
- #define OV5648_FREX_MODE_SEL_FX1_FM_EN BIT(3)
- #define OV5648_FREX_MODE_SEL_FREX_INV BIT(2)
- #define OV5648_FREX_MODE_SEL_MODE1 0x0
- #define OV5648_FREX_MODE_SEL_MODE2 0x1
- #define OV5648_FREX_MODE_SEL_ROLLING 0x2
- #define OV5648_FREX_EXP_REQ_REG 0x3b08
- #define OV5648_FREX_SHUTTER_DLY_REG 0x3b09
- #define OV5648_FREX_RST_LEN_REG 0x3b0a
- #define OV5648_STROBE_WIDTH_HH_REG 0x3b0b
- #define OV5648_STROBE_WIDTH_H_REG 0x3b0c
- /* OTP */
- #define OV5648_OTP_DATA_REG_BASE 0x3d00
- #define OV5648_OTP_PROGRAM_CTRL_REG 0x3d80
- #define OV5648_OTP_LOAD_CTRL_REG 0x3d81
- /* PSRAM */
- #define OV5648_PSRAM_CTRL1_REG 0x3f01
- #define OV5648_PSRAM_CTRLF_REG 0x3f0f
- /* Black Level */
- #define OV5648_BLC_CTRL0_REG 0x4000
- #define OV5648_BLC_CTRL1_REG 0x4001
- #define OV5648_BLC_CTRL1_START_LINE(v) ((v) & GENMASK(5, 0))
- #define OV5648_BLC_CTRL2_REG 0x4002
- #define OV5648_BLC_CTRL2_AUTO_EN BIT(6)
- #define OV5648_BLC_CTRL2_RESET_FRAME_NUM(v) ((v) & GENMASK(5, 0))
- #define OV5648_BLC_CTRL3_REG 0x4003
- #define OV5648_BLC_LINE_NUM_REG 0x4004
- #define OV5648_BLC_LINE_NUM(v) ((v) & GENMASK(7, 0))
- #define OV5648_BLC_CTRL5_REG 0x4005
- #define OV5648_BLC_CTRL5_UPDATE_EN BIT(1)
- #define OV5648_BLC_LEVEL_REG 0x4009
- /* Frame */
- #define OV5648_FRAME_CTRL_REG 0x4200
- #define OV5648_FRAME_ON_NUM_REG 0x4201
- #define OV5648_FRAME_OFF_NUM_REG 0x4202
- /* MIPI CSI-2 */
- #define OV5648_MIPI_CTRL0_REG 0x4800
- #define OV5648_MIPI_CTRL0_CLK_LANE_AUTOGATE BIT(5)
- #define OV5648_MIPI_CTRL0_LANE_SYNC_EN BIT(4)
- #define OV5648_MIPI_CTRL0_LANE_SELECT_LANE1 0
- #define OV5648_MIPI_CTRL0_LANE_SELECT_LANE2 BIT(3)
- #define OV5648_MIPI_CTRL0_IDLE_LP00 0
- #define OV5648_MIPI_CTRL0_IDLE_LP11 BIT(2)
- #define OV5648_MIPI_CTRL1_REG 0x4801
- #define OV5648_MIPI_CTRL2_REG 0x4802
- #define OV5648_MIPI_CTRL3_REG 0x4803
- #define OV5648_MIPI_CTRL4_REG 0x4804
- #define OV5648_MIPI_CTRL5_REG 0x4805
- #define OV5648_MIPI_MAX_FRAME_COUNT_H_REG 0x4810
- #define OV5648_MIPI_MAX_FRAME_COUNT_L_REG 0x4811
- #define OV5648_MIPI_CTRL14_REG 0x4814
- #define OV5648_MIPI_DT_SPKT_REG 0x4815
- #define OV5648_MIPI_HS_ZERO_MIN_H_REG 0x4818
- #define OV5648_MIPI_HS_ZERO_MIN_L_REG 0x4819
- #define OV5648_MIPI_HS_TRAIN_MIN_H_REG 0x481a
- #define OV5648_MIPI_HS_TRAIN_MIN_L_REG 0x481b
- #define OV5648_MIPI_CLK_ZERO_MIN_H_REG 0x481c
- #define OV5648_MIPI_CLK_ZERO_MIN_L_REG 0x481d
- #define OV5648_MIPI_CLK_PREPARE_MIN_H_REG 0x481e
- #define OV5648_MIPI_CLK_PREPARE_MIN_L_REG 0x481f
- #define OV5648_MIPI_CLK_POST_MIN_H_REG 0x4820
- #define OV5648_MIPI_CLK_POST_MIN_L_REG 0x4821
- #define OV5648_MIPI_CLK_TRAIL_MIN_H_REG 0x4822
- #define OV5648_MIPI_CLK_TRAIL_MIN_L_REG 0x4823
- #define OV5648_MIPI_LPX_P_MIN_H_REG 0x4824
- #define OV5648_MIPI_LPX_P_MIN_L_REG 0x4825
- #define OV5648_MIPI_HS_PREPARE_MIN_H_REG 0x4826
- #define OV5648_MIPI_HS_PREPARE_MIN_L_REG 0x4827
- #define OV5648_MIPI_HS_EXIT_MIN_H_REG 0x4828
- #define OV5648_MIPI_HS_EXIT_MIN_L_REG 0x4829
- #define OV5648_MIPI_HS_ZERO_MIN_UI_REG 0x482a
- #define OV5648_MIPI_HS_TRAIL_MIN_UI_REG 0x482b
- #define OV5648_MIPI_CLK_ZERO_MIN_UI_REG 0x482c
- #define OV5648_MIPI_CLK_PREPARE_MIN_UI_REG 0x482d
- #define OV5648_MIPI_CLK_POST_MIN_UI_REG 0x482e
- #define OV5648_MIPI_CLK_TRAIL_MIN_UI_REG 0x482f
- #define OV5648_MIPI_LPX_P_MIN_UI_REG 0x4830
- #define OV5648_MIPI_HS_PREPARE_MIN_UI_REG 0x4831
- #define OV5648_MIPI_HS_EXIT_MIN_UI_REG 0x4832
- #define OV5648_MIPI_REG_MIN_H_REG 0x4833
- #define OV5648_MIPI_REG_MIN_L_REG 0x4834
- #define OV5648_MIPI_REG_MAX_H_REG 0x4835
- #define OV5648_MIPI_REG_MAX_L_REG 0x4836
- #define OV5648_MIPI_PCLK_PERIOD_REG 0x4837
- #define OV5648_MIPI_WKUP_DLY_REG 0x4838
- #define OV5648_MIPI_LP_GPIO_REG 0x483b
- #define OV5648_MIPI_SNR_PCLK_DIV_REG 0x4843
- /* ISP */
- #define OV5648_ISP_CTRL0_REG 0x5000
- #define OV5648_ISP_CTRL0_BLACK_CORRECT_EN BIT(2)
- #define OV5648_ISP_CTRL0_WHITE_CORRECT_EN BIT(1)
- #define OV5648_ISP_CTRL1_REG 0x5001
- #define OV5648_ISP_CTRL1_AWB_EN BIT(0)
- #define OV5648_ISP_CTRL2_REG 0x5002
- #define OV5648_ISP_CTRL2_WIN_EN BIT(6)
- #define OV5648_ISP_CTRL2_OTP_EN BIT(1)
- #define OV5648_ISP_CTRL2_AWB_GAIN_EN BIT(0)
- #define OV5648_ISP_CTRL3_REG 0x5003
- #define OV5648_ISP_CTRL3_BUF_EN BIT(3)
- #define OV5648_ISP_CTRL3_BIN_MAN_SET BIT(2)
- #define OV5648_ISP_CTRL3_BIN_AUTO_EN BIT(1)
- #define OV5648_ISP_CTRL4_REG 0x5004
- #define OV5648_ISP_CTRL5_REG 0x5005
- #define OV5648_ISP_CTRL6_REG 0x5006
- #define OV5648_ISP_CTRL7_REG 0x5007
- #define OV5648_ISP_MAN_OFFSET_X_H_REG 0x5008
- #define OV5648_ISP_MAN_OFFSET_X_L_REG 0x5009
- #define OV5648_ISP_MAN_OFFSET_Y_H_REG 0x500a
- #define OV5648_ISP_MAN_OFFSET_Y_L_REG 0x500b
- #define OV5648_ISP_MAN_WIN_OFFSET_X_H_REG 0x500c
- #define OV5648_ISP_MAN_WIN_OFFSET_X_L_REG 0x500d
- #define OV5648_ISP_MAN_WIN_OFFSET_Y_H_REG 0x500e
- #define OV5648_ISP_MAN_WIN_OFFSET_Y_L_REG 0x500f
- #define OV5648_ISP_MAN_WIN_OUTPUT_X_H_REG 0x5010
- #define OV5648_ISP_MAN_WIN_OUTPUT_X_L_REG 0x5011
- #define OV5648_ISP_MAN_WIN_OUTPUT_Y_H_REG 0x5012
- #define OV5648_ISP_MAN_WIN_OUTPUT_Y_L_REG 0x5013
- #define OV5648_ISP_MAN_INPUT_X_H_REG 0x5014
- #define OV5648_ISP_MAN_INPUT_X_L_REG 0x5015
- #define OV5648_ISP_MAN_INPUT_Y_H_REG 0x5016
- #define OV5648_ISP_MAN_INPUT_Y_L_REG 0x5017
- #define OV5648_ISP_CTRL18_REG 0x5018
- #define OV5648_ISP_CTRL19_REG 0x5019
- #define OV5648_ISP_CTRL1A_REG 0x501a
- #define OV5648_ISP_CTRL1D_REG 0x501d
- #define OV5648_ISP_CTRL1F_REG 0x501f
- #define OV5648_ISP_CTRL1F_OUTPUT_EN 3
- #define OV5648_ISP_CTRL25_REG 0x5025
- #define OV5648_ISP_CTRL3D_REG 0x503d
- #define OV5648_ISP_CTRL3D_PATTERN_EN BIT(7)
- #define OV5648_ISP_CTRL3D_ROLLING_BAR_EN BIT(6)
- #define OV5648_ISP_CTRL3D_TRANSPARENT_MODE BIT(5)
- #define OV5648_ISP_CTRL3D_SQUARES_BW_MODE BIT(4)
- #define OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS 0
- #define OV5648_ISP_CTRL3D_PATTERN_RANDOM_DATA 1
- #define OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES 2
- #define OV5648_ISP_CTRL3D_PATTERN_INPUT 3
- #define OV5648_ISP_CTRL3E_REG 0x503e
- #define OV5648_ISP_CTRL4B_REG 0x504b
- #define OV5648_ISP_CTRL4B_POST_BIN_H_EN BIT(5)
- #define OV5648_ISP_CTRL4B_POST_BIN_V_EN BIT(4)
- #define OV5648_ISP_CTRL4C_REG 0x504c
- #define OV5648_ISP_CTRL57_REG 0x5057
- #define OV5648_ISP_CTRL58_REG 0x5058
- #define OV5648_ISP_CTRL59_REG 0x5059
- #define OV5648_ISP_WINDOW_START_X_H_REG 0x5980
- #define OV5648_ISP_WINDOW_START_X_L_REG 0x5981
- #define OV5648_ISP_WINDOW_START_Y_H_REG 0x5982
- #define OV5648_ISP_WINDOW_START_Y_L_REG 0x5983
- #define OV5648_ISP_WINDOW_WIN_X_H_REG 0x5984
- #define OV5648_ISP_WINDOW_WIN_X_L_REG 0x5985
- #define OV5648_ISP_WINDOW_WIN_Y_H_REG 0x5986
- #define OV5648_ISP_WINDOW_WIN_Y_L_REG 0x5987
- #define OV5648_ISP_WINDOW_MAN_REG 0x5988
- /* White Balance */
- #define OV5648_AWB_CTRL_REG 0x5180
- #define OV5648_AWB_CTRL_FAST_AWB BIT(6)
- #define OV5648_AWB_CTRL_GAIN_FREEZE_EN BIT(5)
- #define OV5648_AWB_CTRL_SUM_FREEZE_EN BIT(4)
- #define OV5648_AWB_CTRL_GAIN_MANUAL_EN BIT(3)
- #define OV5648_AWB_DELTA_REG 0x5181
- #define OV5648_AWB_STABLE_RANGE_REG 0x5182
- #define OV5648_AWB_STABLE_RANGE_WIDE_REG 0x5183
- #define OV5648_HSIZE_MAN_REG 0x5185
- #define OV5648_GAIN_RED_MAN_H_REG 0x5186
- #define OV5648_GAIN_RED_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_GAIN_RED_MAN_L_REG 0x5187
- #define OV5648_GAIN_RED_MAN_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_GAIN_GREEN_MAN_H_REG 0x5188
- #define OV5648_GAIN_GREEN_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_GAIN_GREEN_MAN_L_REG 0x5189
- #define OV5648_GAIN_GREEN_MAN_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_GAIN_BLUE_MAN_H_REG 0x518a
- #define OV5648_GAIN_BLUE_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8)
- #define OV5648_GAIN_BLUE_MAN_L_REG 0x518b
- #define OV5648_GAIN_BLUE_MAN_L(v) ((v) & GENMASK(7, 0))
- #define OV5648_GAIN_RED_LIMIT_REG 0x518c
- #define OV5648_GAIN_GREEN_LIMIT_REG 0x518d
- #define OV5648_GAIN_BLUE_LIMIT_REG 0x518e
- #define OV5648_AWB_FRAME_COUNT_REG 0x518f
- #define OV5648_AWB_BASE_MAN_REG 0x51df
- /* Macros */
- #define ov5648_subdev_sensor(s) \
- container_of(s, struct ov5648_sensor, subdev)
- #define ov5648_ctrl_subdev(c) \
- (&container_of((c)->handler, struct ov5648_sensor, \
- ctrls.handler)->subdev)
- /* Data structures */
- struct ov5648_register_value {
- u16 address;
- u8 value;
- unsigned int delay_ms;
- };
- /*
- * PLL1 Clock Tree:
- *
- * +-< XVCLK
- * |
- * +-+ pll_pre_div (0x3037 [3:0], special values: 5: 1.5, 7: 2.5)
- * |
- * +-+ pll_mul (0x3036 [7:0])
- * |
- * +-+ sys_div (0x3035 [7:4])
- * |
- * +-+ mipi_div (0x3035 [3:0])
- * | |
- * | +-> MIPI_SCLK
- * | |
- * | +-+ mipi_phy_div (2)
- * | |
- * | +-> MIPI_CLK
- * |
- * +-+ root_div (0x3037 [4])
- * |
- * +-+ bit_div (0x3034 [3:0], 8 bits: 2, 10 bits: 2.5, other: 1)
- * |
- * +-+ sclk_div (0x3106 [3:2])
- * |
- * +-> SCLK
- * |
- * +-+ mipi_div (0x3035, 1: PCLK = SCLK)
- * |
- * +-> PCLK
- */
- struct ov5648_pll1_config {
- unsigned int pll_pre_div;
- unsigned int pll_mul;
- unsigned int sys_div;
- unsigned int root_div;
- unsigned int sclk_div;
- unsigned int mipi_div;
- };
- /*
- * PLL2 Clock Tree:
- *
- * +-< XVCLK
- * |
- * +-+ plls_pre_div (0x303d [5:4], special values: 0: 1, 1: 1.5)
- * |
- * +-+ plls_div_r (0x303d [2])
- * |
- * +-+ plls_mul (0x303b [4:0])
- * |
- * +-+ sys_div (0x303c [3:0])
- * |
- * +-+ sel_div (0x303d [1:0], special values: 0: 1, 3: 2.5)
- * |
- * +-> ADCLK
- */
- struct ov5648_pll2_config {
- unsigned int plls_pre_div;
- unsigned int plls_div_r;
- unsigned int plls_mul;
- unsigned int sys_div;
- unsigned int sel_div;
- };
- /*
- * General formulas for (array-centered) mode calculation:
- * - photo_array_width = 2624
- * - crop_start_x = (photo_array_width - output_size_x) / 2
- * - crop_end_x = crop_start_x + offset_x + output_size_x - 1
- *
- * - photo_array_height = 1956
- * - crop_start_y = (photo_array_height - output_size_y) / 2
- * - crop_end_y = crop_start_y + offset_y + output_size_y - 1
- */
- struct ov5648_mode {
- unsigned int crop_start_x;
- unsigned int offset_x;
- unsigned int output_size_x;
- unsigned int crop_end_x;
- unsigned int hts;
- unsigned int crop_start_y;
- unsigned int offset_y;
- unsigned int output_size_y;
- unsigned int crop_end_y;
- unsigned int vts;
- bool binning_x;
- bool binning_y;
- unsigned int inc_x_odd;
- unsigned int inc_x_even;
- unsigned int inc_y_odd;
- unsigned int inc_y_even;
- /* 8-bit frame interval followed by 10-bit frame interval. */
- struct v4l2_fract frame_interval[2];
- /* 8-bit config followed by 10-bit config. */
- const struct ov5648_pll1_config *pll1_config[2];
- const struct ov5648_pll2_config *pll2_config;
- const struct ov5648_register_value *register_values;
- unsigned int register_values_count;
- };
- struct ov5648_state {
- const struct ov5648_mode *mode;
- u32 mbus_code;
- bool streaming;
- };
- struct ov5648_ctrls {
- struct v4l2_ctrl *exposure_auto;
- struct v4l2_ctrl *exposure;
- struct v4l2_ctrl *gain_auto;
- struct v4l2_ctrl *gain;
- struct v4l2_ctrl *white_balance_auto;
- struct v4l2_ctrl *red_balance;
- struct v4l2_ctrl *blue_balance;
- struct v4l2_ctrl *link_freq;
- struct v4l2_ctrl *pixel_rate;
- struct v4l2_ctrl_handler handler;
- };
- struct ov5648_sensor {
- struct device *dev;
- struct i2c_client *i2c_client;
- struct gpio_desc *reset;
- struct gpio_desc *powerdown;
- struct regulator *avdd;
- struct regulator *dvdd;
- struct regulator *dovdd;
- struct clk *xvclk;
- struct v4l2_fwnode_endpoint endpoint;
- struct v4l2_subdev subdev;
- struct media_pad pad;
- struct mutex mutex;
- struct ov5648_state state;
- struct ov5648_ctrls ctrls;
- };
- /* Static definitions */
- /*
- * XVCLK = 24 MHz
- * SCLK = 84 MHz
- * PCLK = 84 MHz
- */
- static const struct ov5648_pll1_config ov5648_pll1_config_native_8_bits = {
- .pll_pre_div = 3,
- .pll_mul = 84,
- .sys_div = 2,
- .root_div = 1,
- .sclk_div = 1,
- .mipi_div = 1,
- };
- /*
- * XVCLK = 24 MHz
- * SCLK = 84 MHz
- * PCLK = 84 MHz
- */
- static const struct ov5648_pll1_config ov5648_pll1_config_native_10_bits = {
- .pll_pre_div = 3,
- .pll_mul = 105,
- .sys_div = 2,
- .root_div = 1,
- .sclk_div = 1,
- .mipi_div = 1,
- };
- /*
- * XVCLK = 24 MHz
- * ADCLK = 200 MHz
- */
- static const struct ov5648_pll2_config ov5648_pll2_config_native = {
- .plls_pre_div = 3,
- .plls_div_r = 1,
- .plls_mul = 25,
- .sys_div = 1,
- .sel_div = 1,
- };
- static const struct ov5648_mode ov5648_modes[] = {
- /* 2592x1944 */
- {
- /* Horizontal */
- .crop_start_x = 16,
- .offset_x = 0,
- .output_size_x = 2592,
- .crop_end_x = 2607,
- .hts = 2816,
- /* Vertical */
- .crop_start_y = 6,
- .offset_y = 0,
- .output_size_y = 1944,
- .crop_end_y = 1949,
- .vts = 1984,
- /* Subsample increase */
- .inc_x_odd = 1,
- .inc_x_even = 1,
- .inc_y_odd = 1,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 15 },
- { 1, 15 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- /* 1600x1200 (UXGA) */
- {
- /* Horizontal */
- .crop_start_x = 512,
- .offset_x = 0,
- .output_size_x = 1600,
- .crop_end_x = 2111,
- .hts = 2816,
- /* Vertical */
- .crop_start_y = 378,
- .offset_y = 0,
- .output_size_y = 1200,
- .crop_end_y = 1577,
- .vts = 1984,
- /* Subsample increase */
- .inc_x_odd = 1,
- .inc_x_even = 1,
- .inc_y_odd = 1,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 15 },
- { 1, 15 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- /* 1920x1080 (Full HD) */
- {
- /* Horizontal */
- .crop_start_x = 352,
- .offset_x = 0,
- .output_size_x = 1920,
- .crop_end_x = 2271,
- .hts = 2816,
- /* Vertical */
- .crop_start_y = 438,
- .offset_y = 0,
- .output_size_y = 1080,
- .crop_end_y = 1517,
- .vts = 1984,
- /* Subsample increase */
- .inc_x_odd = 1,
- .inc_x_even = 1,
- .inc_y_odd = 1,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 15 },
- { 1, 15 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- /* 1280x960 */
- {
- /* Horizontal */
- .crop_start_x = 16,
- .offset_x = 8,
- .output_size_x = 1280,
- .crop_end_x = 2607,
- .hts = 1912,
- /* Vertical */
- .crop_start_y = 6,
- .offset_y = 6,
- .output_size_y = 960,
- .crop_end_y = 1949,
- .vts = 1496,
- /* Binning */
- .binning_x = true,
- /* Subsample increase */
- .inc_x_odd = 3,
- .inc_x_even = 1,
- .inc_y_odd = 3,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 30 },
- { 1, 30 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- /* 1280x720 (HD) */
- {
- /* Horizontal */
- .crop_start_x = 16,
- .offset_x = 8,
- .output_size_x = 1280,
- .crop_end_x = 2607,
- .hts = 1912,
- /* Vertical */
- .crop_start_y = 254,
- .offset_y = 2,
- .output_size_y = 720,
- .crop_end_y = 1701,
- .vts = 1496,
- /* Binning */
- .binning_x = true,
- /* Subsample increase */
- .inc_x_odd = 3,
- .inc_x_even = 1,
- .inc_y_odd = 3,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 30 },
- { 1, 30 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- /* 640x480 (VGA) */
- {
- /* Horizontal */
- .crop_start_x = 0,
- .offset_x = 8,
- .output_size_x = 640,
- .crop_end_x = 2623,
- .hts = 1896,
- /* Vertical */
- .crop_start_y = 0,
- .offset_y = 2,
- .output_size_y = 480,
- .crop_end_y = 1953,
- .vts = 984,
- /* Binning */
- .binning_x = true,
- /* Subsample increase */
- .inc_x_odd = 7,
- .inc_x_even = 1,
- .inc_y_odd = 7,
- .inc_y_even = 1,
- /* Frame Interval */
- .frame_interval = {
- { 1, 30 },
- { 1, 30 },
- },
- /* PLL */
- .pll1_config = {
- &ov5648_pll1_config_native_8_bits,
- &ov5648_pll1_config_native_10_bits,
- },
- .pll2_config = &ov5648_pll2_config_native,
- },
- };
- static const u32 ov5648_mbus_codes[] = {
- MEDIA_BUS_FMT_SBGGR8_1X8,
- MEDIA_BUS_FMT_SBGGR10_1X10,
- };
- static const struct ov5648_register_value ov5648_init_sequence[] = {
- /* PSRAM */
- { OV5648_PSRAM_CTRL1_REG, 0x0d },
- { OV5648_PSRAM_CTRLF_REG, 0xf5 },
- };
- static const s64 ov5648_link_freq_menu[] = {
- 210000000,
- 168000000,
- };
- static const char *const ov5648_test_pattern_menu[] = {
- "Disabled",
- "Random data",
- "Color bars",
- "Color bars with rolling bar",
- "Color squares",
- "Color squares with rolling bar"
- };
- static const u8 ov5648_test_pattern_bits[] = {
- 0,
- OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_RANDOM_DATA,
- OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS,
- OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_ROLLING_BAR_EN |
- OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS,
- OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES,
- OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_ROLLING_BAR_EN |
- OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES,
- };
- /* Input/Output */
- static int ov5648_read(struct ov5648_sensor *sensor, u16 address, u8 *value)
- {
- unsigned char data[2] = { address >> 8, address & 0xff };
- struct i2c_client *client = sensor->i2c_client;
- int ret;
- ret = i2c_master_send(client, data, sizeof(data));
- if (ret < 0) {
- dev_dbg(&client->dev, "i2c send error at address %#04x\n",
- address);
- return ret;
- }
- ret = i2c_master_recv(client, value, 1);
- if (ret < 0) {
- dev_dbg(&client->dev, "i2c recv error at address %#04x\n",
- address);
- return ret;
- }
- return 0;
- }
- static int ov5648_write(struct ov5648_sensor *sensor, u16 address, u8 value)
- {
- unsigned char data[3] = { address >> 8, address & 0xff, value };
- struct i2c_client *client = sensor->i2c_client;
- int ret;
- ret = i2c_master_send(client, data, sizeof(data));
- if (ret < 0) {
- dev_dbg(&client->dev, "i2c send error at address %#04x\n",
- address);
- return ret;
- }
- return 0;
- }
- static int ov5648_write_sequence(struct ov5648_sensor *sensor,
- const struct ov5648_register_value *sequence,
- unsigned int sequence_count)
- {
- unsigned int i;
- int ret = 0;
- for (i = 0; i < sequence_count; i++) {
- ret = ov5648_write(sensor, sequence[i].address,
- sequence[i].value);
- if (ret)
- break;
- if (sequence[i].delay_ms)
- msleep(sequence[i].delay_ms);
- }
- return ret;
- }
- static int ov5648_update_bits(struct ov5648_sensor *sensor, u16 address,
- u8 mask, u8 bits)
- {
- u8 value = 0;
- int ret;
- ret = ov5648_read(sensor, address, &value);
- if (ret)
- return ret;
- value &= ~mask;
- value |= bits;
- ret = ov5648_write(sensor, address, value);
- if (ret)
- return ret;
- return 0;
- }
- /* Sensor */
- static int ov5648_sw_reset(struct ov5648_sensor *sensor)
- {
- return ov5648_write(sensor, OV5648_SW_RESET_REG, OV5648_SW_RESET_RESET);
- }
- static int ov5648_sw_standby(struct ov5648_sensor *sensor, int standby)
- {
- u8 value = 0;
- if (!standby)
- value = OV5648_SW_STANDBY_STREAM_ON;
- return ov5648_write(sensor, OV5648_SW_STANDBY_REG, value);
- }
- static int ov5648_chip_id_check(struct ov5648_sensor *sensor)
- {
- u16 regs[] = { OV5648_CHIP_ID_H_REG, OV5648_CHIP_ID_L_REG };
- u8 values[] = { OV5648_CHIP_ID_H_VALUE, OV5648_CHIP_ID_L_VALUE };
- unsigned int i;
- u8 value;
- int ret;
- for (i = 0; i < ARRAY_SIZE(regs); i++) {
- ret = ov5648_read(sensor, regs[i], &value);
- if (ret < 0)
- return ret;
- if (value != values[i]) {
- dev_err(sensor->dev,
- "chip id value mismatch: %#x instead of %#x\n",
- value, values[i]);
- return -EINVAL;
- }
- }
- return 0;
- }
- static int ov5648_avdd_internal_power(struct ov5648_sensor *sensor, int on)
- {
- return ov5648_write(sensor, OV5648_A_PWC_PK_O0_REG,
- on ? 0 : OV5648_A_PWC_PK_O0_BP_REGULATOR_N);
- }
- static int ov5648_pad_configure(struct ov5648_sensor *sensor)
- {
- int ret;
- /* Configure pads as input. */
- ret = ov5648_write(sensor, OV5648_PAD_OEN1_REG, 0);
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_PAD_OEN2_REG, 0);
- if (ret)
- return ret;
- /* Disable FREX pin. */
- return ov5648_write(sensor, OV5648_PAD_PK_REG,
- OV5648_PAD_PK_DRIVE_STRENGTH_1X |
- OV5648_PAD_PK_FREX_N);
- }
- static int ov5648_mipi_configure(struct ov5648_sensor *sensor)
- {
- struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 =
- &sensor->endpoint.bus.mipi_csi2;
- unsigned int lanes_count = bus_mipi_csi2->num_data_lanes;
- int ret;
- ret = ov5648_write(sensor, OV5648_MIPI_CTRL0_REG,
- OV5648_MIPI_CTRL0_CLK_LANE_AUTOGATE |
- OV5648_MIPI_CTRL0_LANE_SELECT_LANE1 |
- OV5648_MIPI_CTRL0_IDLE_LP11);
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_MIPI_SC_CTRL0_REG,
- OV5648_MIPI_SC_CTRL0_MIPI_LANES(lanes_count) |
- OV5648_MIPI_SC_CTRL0_PHY_LP_RX_PD |
- OV5648_MIPI_SC_CTRL0_MIPI_EN);
- }
- static int ov5648_black_level_configure(struct ov5648_sensor *sensor)
- {
- int ret;
- /* Up to 6 lines are available for black level calibration. */
- ret = ov5648_write(sensor, OV5648_BLC_CTRL1_REG,
- OV5648_BLC_CTRL1_START_LINE(2));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_BLC_CTRL2_REG,
- OV5648_BLC_CTRL2_AUTO_EN |
- OV5648_BLC_CTRL2_RESET_FRAME_NUM(5));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_BLC_LINE_NUM_REG,
- OV5648_BLC_LINE_NUM(4));
- if (ret)
- return ret;
- return ov5648_update_bits(sensor, OV5648_BLC_CTRL5_REG,
- OV5648_BLC_CTRL5_UPDATE_EN,
- OV5648_BLC_CTRL5_UPDATE_EN);
- }
- static int ov5648_isp_configure(struct ov5648_sensor *sensor)
- {
- u8 bits;
- int ret;
- /* Enable black and white level correction. */
- bits = OV5648_ISP_CTRL0_BLACK_CORRECT_EN |
- OV5648_ISP_CTRL0_WHITE_CORRECT_EN;
- ret = ov5648_update_bits(sensor, OV5648_ISP_CTRL0_REG, bits, bits);
- if (ret)
- return ret;
- /* Enable AWB. */
- ret = ov5648_write(sensor, OV5648_ISP_CTRL1_REG,
- OV5648_ISP_CTRL1_AWB_EN);
- if (ret)
- return ret;
- /* Enable AWB gain and windowing. */
- ret = ov5648_write(sensor, OV5648_ISP_CTRL2_REG,
- OV5648_ISP_CTRL2_WIN_EN |
- OV5648_ISP_CTRL2_AWB_GAIN_EN);
- if (ret)
- return ret;
- /* Enable buffering and auto-binning. */
- ret = ov5648_write(sensor, OV5648_ISP_CTRL3_REG,
- OV5648_ISP_CTRL3_BUF_EN |
- OV5648_ISP_CTRL3_BIN_AUTO_EN);
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_ISP_CTRL4_REG, 0);
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_ISP_CTRL1F_REG,
- OV5648_ISP_CTRL1F_OUTPUT_EN);
- if (ret)
- return ret;
- /* Enable post-binning filters. */
- ret = ov5648_write(sensor, OV5648_ISP_CTRL4B_REG,
- OV5648_ISP_CTRL4B_POST_BIN_H_EN |
- OV5648_ISP_CTRL4B_POST_BIN_V_EN);
- if (ret)
- return ret;
- /* Disable debanding and night mode. Debug bit seems necessary. */
- ret = ov5648_write(sensor, OV5648_AEC_CTRL0_REG,
- OV5648_AEC_CTRL0_DEBUG |
- OV5648_AEC_CTRL0_START_SEL_EN);
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_MANUAL_CTRL_REG,
- OV5648_MANUAL_CTRL_FRAME_DELAY(1));
- }
- static unsigned long ov5648_mode_pll1_rate(struct ov5648_sensor *sensor,
- const struct ov5648_pll1_config *config)
- {
- unsigned long xvclk_rate;
- unsigned long pll1_rate;
- xvclk_rate = clk_get_rate(sensor->xvclk);
- pll1_rate = xvclk_rate * config->pll_mul;
- switch (config->pll_pre_div) {
- case 5:
- pll1_rate *= 3;
- pll1_rate /= 2;
- break;
- case 7:
- pll1_rate *= 5;
- pll1_rate /= 2;
- break;
- default:
- pll1_rate /= config->pll_pre_div;
- break;
- }
- return pll1_rate;
- }
- static int ov5648_mode_pll1_configure(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode,
- u32 mbus_code)
- {
- const struct ov5648_pll1_config *config;
- u8 value;
- int ret;
- value = OV5648_PLL_CTRL0_PLL_CHARGE_PUMP(1);
- switch (mbus_code) {
- case MEDIA_BUS_FMT_SBGGR8_1X8:
- config = mode->pll1_config[0];
- value |= OV5648_PLL_CTRL0_BITS(8);
- break;
- case MEDIA_BUS_FMT_SBGGR10_1X10:
- config = mode->pll1_config[1];
- value |= OV5648_PLL_CTRL0_BITS(10);
- break;
- default:
- return -EINVAL;
- }
- ret = ov5648_write(sensor, OV5648_PLL_CTRL0_REG, value);
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_PLL_DIV_REG,
- OV5648_PLL_DIV_ROOT_DIV(config->root_div) |
- OV5648_PLL_DIV_PLL_PRE_DIV(config->pll_pre_div));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_PLL_MUL_REG,
- OV5648_PLL_MUL(config->pll_mul));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_PLL_CTRL1_REG,
- OV5648_PLL_CTRL1_SYS_DIV(config->sys_div) |
- OV5648_PLL_CTRL1_MIPI_DIV(config->mipi_div));
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_SRB_CTRL_REG,
- OV5648_SRB_CTRL_SCLK_DIV(config->sclk_div) |
- OV5648_SRB_CTRL_SCLK_ARBITER_EN);
- }
- static int ov5648_mode_pll2_configure(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode)
- {
- const struct ov5648_pll2_config *config = mode->pll2_config;
- int ret;
- ret = ov5648_write(sensor, OV5648_PLLS_DIV_REG,
- OV5648_PLLS_DIV_PLLS_PRE_DIV(config->plls_pre_div) |
- OV5648_PLLS_DIV_PLLS_DIV_R(config->plls_div_r) |
- OV5648_PLLS_DIV_PLLS_SEL_DIV(config->sel_div));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_PLLS_MUL_REG,
- OV5648_PLLS_MUL(config->plls_mul));
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_PLLS_CTRL_REG,
- OV5648_PLLS_CTRL_PLL_CHARGE_PUMP(1) |
- OV5648_PLLS_CTRL_SYS_DIV(config->sys_div));
- }
- static int ov5648_mode_configure(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode, u32 mbus_code)
- {
- int ret;
- /* Crop Start X */
- ret = ov5648_write(sensor, OV5648_CROP_START_X_H_REG,
- OV5648_CROP_START_X_H(mode->crop_start_x));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_CROP_START_X_L_REG,
- OV5648_CROP_START_X_L(mode->crop_start_x));
- if (ret)
- return ret;
- /* Offset X */
- ret = ov5648_write(sensor, OV5648_OFFSET_X_H_REG,
- OV5648_OFFSET_X_H(mode->offset_x));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_OFFSET_X_L_REG,
- OV5648_OFFSET_X_L(mode->offset_x));
- if (ret)
- return ret;
- /* Output Size X */
- ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_X_H_REG,
- OV5648_OUTPUT_SIZE_X_H(mode->output_size_x));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_X_L_REG,
- OV5648_OUTPUT_SIZE_X_L(mode->output_size_x));
- if (ret)
- return ret;
- /* Crop End X */
- ret = ov5648_write(sensor, OV5648_CROP_END_X_H_REG,
- OV5648_CROP_END_X_H(mode->crop_end_x));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_CROP_END_X_L_REG,
- OV5648_CROP_END_X_L(mode->crop_end_x));
- if (ret)
- return ret;
- /* Horizontal Total Size */
- ret = ov5648_write(sensor, OV5648_HTS_H_REG, OV5648_HTS_H(mode->hts));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_HTS_L_REG, OV5648_HTS_L(mode->hts));
- if (ret)
- return ret;
- /* Crop Start Y */
- ret = ov5648_write(sensor, OV5648_CROP_START_Y_H_REG,
- OV5648_CROP_START_Y_H(mode->crop_start_y));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_CROP_START_Y_L_REG,
- OV5648_CROP_START_Y_L(mode->crop_start_y));
- if (ret)
- return ret;
- /* Offset Y */
- ret = ov5648_write(sensor, OV5648_OFFSET_Y_H_REG,
- OV5648_OFFSET_Y_H(mode->offset_y));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_OFFSET_Y_L_REG,
- OV5648_OFFSET_Y_L(mode->offset_y));
- if (ret)
- return ret;
- /* Output Size Y */
- ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_Y_H_REG,
- OV5648_OUTPUT_SIZE_Y_H(mode->output_size_y));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_Y_L_REG,
- OV5648_OUTPUT_SIZE_Y_L(mode->output_size_y));
- if (ret)
- return ret;
- /* Crop End Y */
- ret = ov5648_write(sensor, OV5648_CROP_END_Y_H_REG,
- OV5648_CROP_END_Y_H(mode->crop_end_y));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_CROP_END_Y_L_REG,
- OV5648_CROP_END_Y_L(mode->crop_end_y));
- if (ret)
- return ret;
- /* Vertical Total Size */
- ret = ov5648_write(sensor, OV5648_VTS_H_REG, OV5648_VTS_H(mode->vts));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_VTS_L_REG, OV5648_VTS_L(mode->vts));
- if (ret)
- return ret;
- /* Flip/Mirror/Binning */
- /*
- * A debug bit is enabled by default and needs to be cleared for
- * subsampling to work.
- */
- ret = ov5648_update_bits(sensor, OV5648_TC20_REG,
- OV5648_TC20_DEBUG |
- OV5648_TC20_BINNING_VERT_EN,
- mode->binning_y ? OV5648_TC20_BINNING_VERT_EN :
- 0);
- if (ret)
- return ret;
- ret = ov5648_update_bits(sensor, OV5648_TC21_REG,
- OV5648_TC21_BINNING_HORZ_EN,
- mode->binning_x ? OV5648_TC21_BINNING_HORZ_EN :
- 0);
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_SUB_INC_X_REG,
- OV5648_SUB_INC_X_ODD(mode->inc_x_odd) |
- OV5648_SUB_INC_X_EVEN(mode->inc_x_even));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_SUB_INC_Y_REG,
- OV5648_SUB_INC_Y_ODD(mode->inc_y_odd) |
- OV5648_SUB_INC_Y_EVEN(mode->inc_y_even));
- if (ret)
- return ret;
- /* PLLs */
- ret = ov5648_mode_pll1_configure(sensor, mode, mbus_code);
- if (ret)
- return ret;
- ret = ov5648_mode_pll2_configure(sensor, mode);
- if (ret)
- return ret;
- /* Extra registers */
- if (mode->register_values) {
- ret = ov5648_write_sequence(sensor, mode->register_values,
- mode->register_values_count);
- if (ret)
- return ret;
- }
- return 0;
- }
- static unsigned long ov5648_mode_mipi_clk_rate(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode,
- u32 mbus_code)
- {
- const struct ov5648_pll1_config *config;
- unsigned long pll1_rate;
- switch (mbus_code) {
- case MEDIA_BUS_FMT_SBGGR8_1X8:
- config = mode->pll1_config[0];
- break;
- case MEDIA_BUS_FMT_SBGGR10_1X10:
- config = mode->pll1_config[1];
- break;
- default:
- return 0;
- }
- pll1_rate = ov5648_mode_pll1_rate(sensor, config);
- return pll1_rate / config->sys_div / config->mipi_div / 2;
- }
- /* Exposure */
- static int ov5648_exposure_auto_configure(struct ov5648_sensor *sensor,
- bool enable)
- {
- return ov5648_update_bits(sensor, OV5648_MANUAL_CTRL_REG,
- OV5648_MANUAL_CTRL_AEC_MANUAL_EN,
- enable ? 0 : OV5648_MANUAL_CTRL_AEC_MANUAL_EN);
- }
- static int ov5648_exposure_configure(struct ov5648_sensor *sensor, u32 exposure)
- {
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- int ret;
- if (ctrls->exposure_auto->val != V4L2_EXPOSURE_MANUAL)
- return -EINVAL;
- ret = ov5648_write(sensor, OV5648_EXPOSURE_CTRL_HH_REG,
- OV5648_EXPOSURE_CTRL_HH(exposure));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_EXPOSURE_CTRL_H_REG,
- OV5648_EXPOSURE_CTRL_H(exposure));
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_EXPOSURE_CTRL_L_REG,
- OV5648_EXPOSURE_CTRL_L(exposure));
- }
- static int ov5648_exposure_value(struct ov5648_sensor *sensor,
- u32 *exposure)
- {
- u8 exposure_hh = 0, exposure_h = 0, exposure_l = 0;
- int ret;
- ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_HH_REG, &exposure_hh);
- if (ret)
- return ret;
- ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_H_REG, &exposure_h);
- if (ret)
- return ret;
- ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_L_REG, &exposure_l);
- if (ret)
- return ret;
- *exposure = OV5648_EXPOSURE_CTRL_HH_VALUE((u32)exposure_hh) |
- OV5648_EXPOSURE_CTRL_H_VALUE((u32)exposure_h) |
- OV5648_EXPOSURE_CTRL_L_VALUE((u32)exposure_l);
- return 0;
- }
- /* Gain */
- static int ov5648_gain_auto_configure(struct ov5648_sensor *sensor, bool enable)
- {
- return ov5648_update_bits(sensor, OV5648_MANUAL_CTRL_REG,
- OV5648_MANUAL_CTRL_AGC_MANUAL_EN,
- enable ? 0 : OV5648_MANUAL_CTRL_AGC_MANUAL_EN);
- }
- static int ov5648_gain_configure(struct ov5648_sensor *sensor, u32 gain)
- {
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- int ret;
- if (ctrls->gain_auto->val)
- return -EINVAL;
- ret = ov5648_write(sensor, OV5648_GAIN_CTRL_H_REG,
- OV5648_GAIN_CTRL_H(gain));
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_GAIN_CTRL_L_REG,
- OV5648_GAIN_CTRL_L(gain));
- }
- static int ov5648_gain_value(struct ov5648_sensor *sensor, u32 *gain)
- {
- u8 gain_h = 0, gain_l = 0;
- int ret;
- ret = ov5648_read(sensor, OV5648_GAIN_CTRL_H_REG, &gain_h);
- if (ret)
- return ret;
- ret = ov5648_read(sensor, OV5648_GAIN_CTRL_L_REG, &gain_l);
- if (ret)
- return ret;
- *gain = OV5648_GAIN_CTRL_H_VALUE((u32)gain_h) |
- OV5648_GAIN_CTRL_L_VALUE((u32)gain_l);
- return 0;
- }
- /* White Balance */
- static int ov5648_white_balance_auto_configure(struct ov5648_sensor *sensor,
- bool enable)
- {
- return ov5648_write(sensor, OV5648_AWB_CTRL_REG,
- enable ? 0 : OV5648_AWB_CTRL_GAIN_MANUAL_EN);
- }
- static int ov5648_white_balance_configure(struct ov5648_sensor *sensor,
- u32 red_balance, u32 blue_balance)
- {
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- int ret;
- if (ctrls->white_balance_auto->val)
- return -EINVAL;
- ret = ov5648_write(sensor, OV5648_GAIN_RED_MAN_H_REG,
- OV5648_GAIN_RED_MAN_H(red_balance));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_GAIN_RED_MAN_L_REG,
- OV5648_GAIN_RED_MAN_L(red_balance));
- if (ret)
- return ret;
- ret = ov5648_write(sensor, OV5648_GAIN_BLUE_MAN_H_REG,
- OV5648_GAIN_BLUE_MAN_H(blue_balance));
- if (ret)
- return ret;
- return ov5648_write(sensor, OV5648_GAIN_BLUE_MAN_L_REG,
- OV5648_GAIN_BLUE_MAN_L(blue_balance));
- }
- /* Flip */
- static int ov5648_flip_vert_configure(struct ov5648_sensor *sensor, bool enable)
- {
- u8 bits = OV5648_TC20_FLIP_VERT_ISP_EN |
- OV5648_TC20_FLIP_VERT_SENSOR_EN;
- return ov5648_update_bits(sensor, OV5648_TC20_REG, bits,
- enable ? bits : 0);
- }
- static int ov5648_flip_horz_configure(struct ov5648_sensor *sensor, bool enable)
- {
- u8 bits = OV5648_TC21_FLIP_HORZ_ISP_EN |
- OV5648_TC21_FLIP_HORZ_SENSOR_EN;
- return ov5648_update_bits(sensor, OV5648_TC21_REG, bits,
- enable ? bits : 0);
- }
- /* Test Pattern */
- static int ov5648_test_pattern_configure(struct ov5648_sensor *sensor,
- unsigned int index)
- {
- if (index >= ARRAY_SIZE(ov5648_test_pattern_bits))
- return -EINVAL;
- return ov5648_write(sensor, OV5648_ISP_CTRL3D_REG,
- ov5648_test_pattern_bits[index]);
- }
- /* State */
- static int ov5648_state_mipi_configure(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode,
- u32 mbus_code)
- {
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 =
- &sensor->endpoint.bus.mipi_csi2;
- unsigned long mipi_clk_rate;
- unsigned int bits_per_sample;
- unsigned int lanes_count;
- unsigned int i, j;
- s64 mipi_pixel_rate;
- mipi_clk_rate = ov5648_mode_mipi_clk_rate(sensor, mode, mbus_code);
- if (!mipi_clk_rate)
- return -EINVAL;
- for (i = 0; i < ARRAY_SIZE(ov5648_link_freq_menu); i++) {
- s64 freq = ov5648_link_freq_menu[i];
- if (freq == mipi_clk_rate)
- break;
- }
- for (j = 0; j < sensor->endpoint.nr_of_link_frequencies; j++) {
- u64 freq = sensor->endpoint.link_frequencies[j];
- if (freq == mipi_clk_rate)
- break;
- }
- if (i == ARRAY_SIZE(ov5648_link_freq_menu)) {
- dev_err(sensor->dev,
- "failed to find %lu clk rate in link freq\n",
- mipi_clk_rate);
- } else if (j == sensor->endpoint.nr_of_link_frequencies) {
- dev_err(sensor->dev,
- "failed to find %lu clk rate in endpoint link-frequencies\n",
- mipi_clk_rate);
- } else {
- __v4l2_ctrl_s_ctrl(ctrls->link_freq, i);
- }
- switch (mbus_code) {
- case MEDIA_BUS_FMT_SBGGR8_1X8:
- bits_per_sample = 8;
- break;
- case MEDIA_BUS_FMT_SBGGR10_1X10:
- bits_per_sample = 10;
- break;
- default:
- return -EINVAL;
- }
- lanes_count = bus_mipi_csi2->num_data_lanes;
- mipi_pixel_rate = mipi_clk_rate * 2 * lanes_count / bits_per_sample;
- __v4l2_ctrl_s_ctrl_int64(ctrls->pixel_rate, mipi_pixel_rate);
- return 0;
- }
- static int ov5648_state_configure(struct ov5648_sensor *sensor,
- const struct ov5648_mode *mode,
- u32 mbus_code)
- {
- int ret;
- if (sensor->state.streaming)
- return -EBUSY;
- /* State will be configured at first power on otherwise. */
- if (pm_runtime_enabled(sensor->dev) &&
- !pm_runtime_suspended(sensor->dev)) {
- ret = ov5648_mode_configure(sensor, mode, mbus_code);
- if (ret)
- return ret;
- }
- ret = ov5648_state_mipi_configure(sensor, mode, mbus_code);
- if (ret)
- return ret;
- sensor->state.mode = mode;
- sensor->state.mbus_code = mbus_code;
- return 0;
- }
- static int ov5648_state_init(struct ov5648_sensor *sensor)
- {
- int ret;
- mutex_lock(&sensor->mutex);
- ret = ov5648_state_configure(sensor, &ov5648_modes[0],
- ov5648_mbus_codes[0]);
- mutex_unlock(&sensor->mutex);
- return ret;
- }
- /* Sensor Base */
- static int ov5648_sensor_init(struct ov5648_sensor *sensor)
- {
- int ret;
- ret = ov5648_sw_reset(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to perform sw reset\n");
- return ret;
- }
- ret = ov5648_sw_standby(sensor, 1);
- if (ret) {
- dev_err(sensor->dev, "failed to set sensor standby\n");
- return ret;
- }
- ret = ov5648_chip_id_check(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to check sensor chip id\n");
- return ret;
- }
- ret = ov5648_avdd_internal_power(sensor, !sensor->avdd);
- if (ret) {
- dev_err(sensor->dev, "failed to set internal avdd power\n");
- return ret;
- }
- ret = ov5648_write_sequence(sensor, ov5648_init_sequence,
- ARRAY_SIZE(ov5648_init_sequence));
- if (ret) {
- dev_err(sensor->dev, "failed to write init sequence\n");
- return ret;
- }
- ret = ov5648_pad_configure(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to configure pad\n");
- return ret;
- }
- ret = ov5648_mipi_configure(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to configure MIPI\n");
- return ret;
- }
- ret = ov5648_isp_configure(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to configure ISP\n");
- return ret;
- }
- ret = ov5648_black_level_configure(sensor);
- if (ret) {
- dev_err(sensor->dev, "failed to configure black level\n");
- return ret;
- }
- /* Configure current mode. */
- ret = ov5648_state_configure(sensor, sensor->state.mode,
- sensor->state.mbus_code);
- if (ret) {
- dev_err(sensor->dev, "failed to configure state\n");
- return ret;
- }
- return 0;
- }
- static int ov5648_sensor_power(struct ov5648_sensor *sensor, bool on)
- {
- /* Keep initialized to zero for disable label. */
- int ret = 0;
- /*
- * General notes about the power sequence:
- * - power-down GPIO must be active (low) during power-on;
- * - reset GPIO state does not matter during power-on;
- * - XVCLK must be provided 1 ms before register access;
- * - 10 ms are needed between power-down deassert and register access.
- */
- /* Note that regulator-and-GPIO-based power is untested. */
- if (on) {
- gpiod_set_value_cansleep(sensor->reset, 1);
- gpiod_set_value_cansleep(sensor->powerdown, 1);
- ret = regulator_enable(sensor->dovdd);
- if (ret) {
- dev_err(sensor->dev,
- "failed to enable DOVDD regulator\n");
- goto disable;
- }
- if (sensor->avdd) {
- ret = regulator_enable(sensor->avdd);
- if (ret) {
- dev_err(sensor->dev,
- "failed to enable AVDD regulator\n");
- goto disable;
- }
- }
- ret = regulator_enable(sensor->dvdd);
- if (ret) {
- dev_err(sensor->dev,
- "failed to enable DVDD regulator\n");
- goto disable;
- }
- /* According to OV5648 power up diagram. */
- usleep_range(5000, 10000);
- ret = clk_prepare_enable(sensor->xvclk);
- if (ret) {
- dev_err(sensor->dev, "failed to enable XVCLK clock\n");
- goto disable;
- }
- gpiod_set_value_cansleep(sensor->reset, 0);
- gpiod_set_value_cansleep(sensor->powerdown, 0);
- usleep_range(20000, 25000);
- } else {
- disable:
- gpiod_set_value_cansleep(sensor->powerdown, 1);
- gpiod_set_value_cansleep(sensor->reset, 1);
- clk_disable_unprepare(sensor->xvclk);
- regulator_disable(sensor->dvdd);
- if (sensor->avdd)
- regulator_disable(sensor->avdd);
- regulator_disable(sensor->dovdd);
- }
- return ret;
- }
- /* Controls */
- static int ov5648_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
- {
- struct v4l2_subdev *subdev = ov5648_ctrl_subdev(ctrl);
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- int ret;
- switch (ctrl->id) {
- case V4L2_CID_EXPOSURE_AUTO:
- ret = ov5648_exposure_value(sensor, &ctrls->exposure->val);
- if (ret)
- return ret;
- break;
- case V4L2_CID_AUTOGAIN:
- ret = ov5648_gain_value(sensor, &ctrls->gain->val);
- if (ret)
- return ret;
- break;
- default:
- return -EINVAL;
- }
- return 0;
- }
- static int ov5648_s_ctrl(struct v4l2_ctrl *ctrl)
- {
- struct v4l2_subdev *subdev = ov5648_ctrl_subdev(ctrl);
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- unsigned int index;
- bool enable;
- int ret;
- /* Wait for the sensor to be on before setting controls. */
- if (pm_runtime_suspended(sensor->dev))
- return 0;
- switch (ctrl->id) {
- case V4L2_CID_EXPOSURE_AUTO:
- enable = ctrl->val == V4L2_EXPOSURE_AUTO;
- ret = ov5648_exposure_auto_configure(sensor, enable);
- if (ret)
- return ret;
- if (!enable && ctrls->exposure->is_new) {
- ret = ov5648_exposure_configure(sensor,
- ctrls->exposure->val);
- if (ret)
- return ret;
- }
- break;
- case V4L2_CID_AUTOGAIN:
- enable = !!ctrl->val;
- ret = ov5648_gain_auto_configure(sensor, enable);
- if (ret)
- return ret;
- if (!enable) {
- ret = ov5648_gain_configure(sensor, ctrls->gain->val);
- if (ret)
- return ret;
- }
- break;
- case V4L2_CID_AUTO_WHITE_BALANCE:
- enable = !!ctrl->val;
- ret = ov5648_white_balance_auto_configure(sensor, enable);
- if (ret)
- return ret;
- if (!enable) {
- ret = ov5648_white_balance_configure(sensor,
- ctrls->red_balance->val,
- ctrls->blue_balance->val);
- if (ret)
- return ret;
- }
- break;
- case V4L2_CID_HFLIP:
- enable = !!ctrl->val;
- return ov5648_flip_horz_configure(sensor, enable);
- case V4L2_CID_VFLIP:
- enable = !!ctrl->val;
- return ov5648_flip_vert_configure(sensor, enable);
- case V4L2_CID_TEST_PATTERN:
- index = (unsigned int)ctrl->val;
- return ov5648_test_pattern_configure(sensor, index);
- default:
- return -EINVAL;
- }
- return 0;
- }
- static const struct v4l2_ctrl_ops ov5648_ctrl_ops = {
- .g_volatile_ctrl = ov5648_g_volatile_ctrl,
- .s_ctrl = ov5648_s_ctrl,
- };
- static int ov5648_ctrls_init(struct ov5648_sensor *sensor)
- {
- struct ov5648_ctrls *ctrls = &sensor->ctrls;
- struct v4l2_ctrl_handler *handler = &ctrls->handler;
- const struct v4l2_ctrl_ops *ops = &ov5648_ctrl_ops;
- int ret;
- v4l2_ctrl_handler_init(handler, 32);
- /* Use our mutex for ctrl locking. */
- handler->lock = &sensor->mutex;
- /* Exposure */
- ctrls->exposure_auto = v4l2_ctrl_new_std_menu(handler, ops,
- V4L2_CID_EXPOSURE_AUTO,
- V4L2_EXPOSURE_MANUAL, 0,
- V4L2_EXPOSURE_AUTO);
- ctrls->exposure = v4l2_ctrl_new_std(handler, ops, V4L2_CID_EXPOSURE,
- 16, 1048575, 16, 512);
- v4l2_ctrl_auto_cluster(2, &ctrls->exposure_auto, 1, true);
- /* Gain */
- ctrls->gain_auto =
- v4l2_ctrl_new_std(handler, ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
- ctrls->gain = v4l2_ctrl_new_std(handler, ops, V4L2_CID_GAIN, 16, 1023,
- 16, 16);
- v4l2_ctrl_auto_cluster(2, &ctrls->gain_auto, 0, true);
- /* White Balance */
- ctrls->white_balance_auto =
- v4l2_ctrl_new_std(handler, ops, V4L2_CID_AUTO_WHITE_BALANCE, 0,
- 1, 1, 1);
- ctrls->red_balance = v4l2_ctrl_new_std(handler, ops,
- V4L2_CID_RED_BALANCE, 0, 4095,
- 1, 1024);
- ctrls->blue_balance = v4l2_ctrl_new_std(handler, ops,
- V4L2_CID_BLUE_BALANCE, 0, 4095,
- 1, 1024);
- v4l2_ctrl_auto_cluster(3, &ctrls->white_balance_auto, 0, false);
- /* Flip */
- v4l2_ctrl_new_std(handler, ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(handler, ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
- /* Test Pattern */
- v4l2_ctrl_new_std_menu_items(handler, ops, V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(ov5648_test_pattern_menu) - 1,
- 0, 0, ov5648_test_pattern_menu);
- /* MIPI CSI-2 */
- ctrls->link_freq =
- v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
- ARRAY_SIZE(ov5648_link_freq_menu) - 1,
- 0, ov5648_link_freq_menu);
- ctrls->pixel_rate =
- v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 1,
- INT_MAX, 1, 1);
- if (handler->error) {
- ret = handler->error;
- goto error_ctrls;
- }
- ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE;
- ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE;
- ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
- ctrls->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
- sensor->subdev.ctrl_handler = handler;
- return 0;
- error_ctrls:
- v4l2_ctrl_handler_free(handler);
- return ret;
- }
- /* Subdev Video Operations */
- static int ov5648_s_stream(struct v4l2_subdev *subdev, int enable)
- {
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct ov5648_state *state = &sensor->state;
- int ret;
- if (enable) {
- ret = pm_runtime_resume_and_get(sensor->dev);
- if (ret < 0)
- return ret;
- }
- mutex_lock(&sensor->mutex);
- ret = ov5648_sw_standby(sensor, !enable);
- mutex_unlock(&sensor->mutex);
- if (ret)
- return ret;
- state->streaming = !!enable;
- if (!enable)
- pm_runtime_put(sensor->dev);
- return 0;
- }
- static int ov5648_g_frame_interval(struct v4l2_subdev *subdev,
- struct v4l2_subdev_frame_interval *interval)
- {
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- const struct ov5648_mode *mode;
- int ret = 0;
- mutex_lock(&sensor->mutex);
- mode = sensor->state.mode;
- switch (sensor->state.mbus_code) {
- case MEDIA_BUS_FMT_SBGGR8_1X8:
- interval->interval = mode->frame_interval[0];
- break;
- case MEDIA_BUS_FMT_SBGGR10_1X10:
- interval->interval = mode->frame_interval[1];
- break;
- default:
- ret = -EINVAL;
- }
- mutex_unlock(&sensor->mutex);
- return ret;
- }
- static const struct v4l2_subdev_video_ops ov5648_subdev_video_ops = {
- .s_stream = ov5648_s_stream,
- .g_frame_interval = ov5648_g_frame_interval,
- .s_frame_interval = ov5648_g_frame_interval,
- };
- /* Subdev Pad Operations */
- static int ov5648_enum_mbus_code(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_mbus_code_enum *code_enum)
- {
- if (code_enum->index >= ARRAY_SIZE(ov5648_mbus_codes))
- return -EINVAL;
- code_enum->code = ov5648_mbus_codes[code_enum->index];
- return 0;
- }
- static void ov5648_mbus_format_fill(struct v4l2_mbus_framefmt *mbus_format,
- u32 mbus_code,
- const struct ov5648_mode *mode)
- {
- mbus_format->width = mode->output_size_x;
- mbus_format->height = mode->output_size_y;
- mbus_format->code = mbus_code;
- mbus_format->field = V4L2_FIELD_NONE;
- mbus_format->colorspace = V4L2_COLORSPACE_RAW;
- mbus_format->ycbcr_enc =
- V4L2_MAP_YCBCR_ENC_DEFAULT(mbus_format->colorspace);
- mbus_format->quantization = V4L2_QUANTIZATION_FULL_RANGE;
- mbus_format->xfer_func =
- V4L2_MAP_XFER_FUNC_DEFAULT(mbus_format->colorspace);
- }
- static int ov5648_get_fmt(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *format)
- {
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct v4l2_mbus_framefmt *mbus_format = &format->format;
- mutex_lock(&sensor->mutex);
- if (format->which == V4L2_SUBDEV_FORMAT_TRY)
- *mbus_format = *v4l2_subdev_get_try_format(subdev, sd_state,
- format->pad);
- else
- ov5648_mbus_format_fill(mbus_format, sensor->state.mbus_code,
- sensor->state.mode);
- mutex_unlock(&sensor->mutex);
- return 0;
- }
- static int ov5648_set_fmt(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *format)
- {
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct v4l2_mbus_framefmt *mbus_format = &format->format;
- const struct ov5648_mode *mode;
- u32 mbus_code = 0;
- unsigned int index;
- int ret = 0;
- mutex_lock(&sensor->mutex);
- if (sensor->state.streaming) {
- ret = -EBUSY;
- goto complete;
- }
- /* Try to find requested mbus code. */
- for (index = 0; index < ARRAY_SIZE(ov5648_mbus_codes); index++) {
- if (ov5648_mbus_codes[index] == mbus_format->code) {
- mbus_code = mbus_format->code;
- break;
- }
- }
- /* Fallback to default. */
- if (!mbus_code)
- mbus_code = ov5648_mbus_codes[0];
- /* Find the mode with nearest dimensions. */
- mode = v4l2_find_nearest_size(ov5648_modes, ARRAY_SIZE(ov5648_modes),
- output_size_x, output_size_y,
- mbus_format->width, mbus_format->height);
- if (!mode) {
- ret = -EINVAL;
- goto complete;
- }
- ov5648_mbus_format_fill(mbus_format, mbus_code, mode);
- if (format->which == V4L2_SUBDEV_FORMAT_TRY)
- *v4l2_subdev_get_try_format(subdev, sd_state, format->pad) =
- *mbus_format;
- else if (sensor->state.mode != mode ||
- sensor->state.mbus_code != mbus_code)
- ret = ov5648_state_configure(sensor, mode, mbus_code);
- complete:
- mutex_unlock(&sensor->mutex);
- return ret;
- }
- static int ov5648_enum_frame_size(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_frame_size_enum *size_enum)
- {
- const struct ov5648_mode *mode;
- if (size_enum->index >= ARRAY_SIZE(ov5648_modes))
- return -EINVAL;
- mode = &ov5648_modes[size_enum->index];
- size_enum->min_width = size_enum->max_width = mode->output_size_x;
- size_enum->min_height = size_enum->max_height = mode->output_size_y;
- return 0;
- }
- static int ov5648_enum_frame_interval(struct v4l2_subdev *subdev,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_frame_interval_enum *interval_enum)
- {
- const struct ov5648_mode *mode = NULL;
- unsigned int mode_index;
- unsigned int interval_index;
- if (interval_enum->index > 0)
- return -EINVAL;
- /*
- * Multiple modes with the same dimensions may have different frame
- * intervals, so look up each relevant mode.
- */
- for (mode_index = 0, interval_index = 0;
- mode_index < ARRAY_SIZE(ov5648_modes); mode_index++) {
- mode = &ov5648_modes[mode_index];
- if (mode->output_size_x == interval_enum->width &&
- mode->output_size_y == interval_enum->height) {
- if (interval_index == interval_enum->index)
- break;
- interval_index++;
- }
- }
- if (mode_index == ARRAY_SIZE(ov5648_modes))
- return -EINVAL;
- switch (interval_enum->code) {
- case MEDIA_BUS_FMT_SBGGR8_1X8:
- interval_enum->interval = mode->frame_interval[0];
- break;
- case MEDIA_BUS_FMT_SBGGR10_1X10:
- interval_enum->interval = mode->frame_interval[1];
- break;
- default:
- return -EINVAL;
- }
- return 0;
- }
- static const struct v4l2_subdev_pad_ops ov5648_subdev_pad_ops = {
- .enum_mbus_code = ov5648_enum_mbus_code,
- .get_fmt = ov5648_get_fmt,
- .set_fmt = ov5648_set_fmt,
- .enum_frame_size = ov5648_enum_frame_size,
- .enum_frame_interval = ov5648_enum_frame_interval,
- };
- static const struct v4l2_subdev_ops ov5648_subdev_ops = {
- .video = &ov5648_subdev_video_ops,
- .pad = &ov5648_subdev_pad_ops,
- };
- static int ov5648_suspend(struct device *dev)
- {
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct ov5648_state *state = &sensor->state;
- int ret = 0;
- mutex_lock(&sensor->mutex);
- if (state->streaming) {
- ret = ov5648_sw_standby(sensor, true);
- if (ret)
- goto complete;
- }
- ret = ov5648_sensor_power(sensor, false);
- if (ret)
- ov5648_sw_standby(sensor, false);
- complete:
- mutex_unlock(&sensor->mutex);
- return ret;
- }
- static int ov5648_resume(struct device *dev)
- {
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- struct ov5648_state *state = &sensor->state;
- int ret = 0;
- mutex_lock(&sensor->mutex);
- ret = ov5648_sensor_power(sensor, true);
- if (ret)
- goto complete;
- ret = ov5648_sensor_init(sensor);
- if (ret)
- goto error_power;
- ret = __v4l2_ctrl_handler_setup(&sensor->ctrls.handler);
- if (ret)
- goto error_power;
- if (state->streaming) {
- ret = ov5648_sw_standby(sensor, false);
- if (ret)
- goto error_power;
- }
- goto complete;
- error_power:
- ov5648_sensor_power(sensor, false);
- complete:
- mutex_unlock(&sensor->mutex);
- return ret;
- }
- static int ov5648_probe(struct i2c_client *client)
- {
- struct device *dev = &client->dev;
- struct fwnode_handle *handle;
- struct ov5648_sensor *sensor;
- struct v4l2_subdev *subdev;
- struct media_pad *pad;
- unsigned long rate;
- int ret;
- sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
- if (!sensor)
- return -ENOMEM;
- sensor->dev = dev;
- sensor->i2c_client = client;
- /* Graph Endpoint */
- handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
- if (!handle) {
- dev_err(dev, "unable to find endpoint node\n");
- return -EINVAL;
- }
- sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY;
- ret = v4l2_fwnode_endpoint_alloc_parse(handle, &sensor->endpoint);
- fwnode_handle_put(handle);
- if (ret) {
- dev_err(dev, "failed to parse endpoint node\n");
- return ret;
- }
- /* GPIOs */
- sensor->powerdown = devm_gpiod_get_optional(dev, "powerdown",
- GPIOD_OUT_HIGH);
- if (IS_ERR(sensor->powerdown)) {
- ret = PTR_ERR(sensor->powerdown);
- goto error_endpoint;
- }
- sensor->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
- if (IS_ERR(sensor->reset)) {
- ret = PTR_ERR(sensor->reset);
- goto error_endpoint;
- }
- /* Regulators */
- /* DVDD: digital core */
- sensor->dvdd = devm_regulator_get(dev, "dvdd");
- if (IS_ERR(sensor->dvdd)) {
- dev_err(dev, "cannot get DVDD (digital core) regulator\n");
- ret = PTR_ERR(sensor->dvdd);
- goto error_endpoint;
- }
- /* DOVDD: digital I/O */
- sensor->dovdd = devm_regulator_get(dev, "dovdd");
- if (IS_ERR(sensor->dovdd)) {
- dev_err(dev, "cannot get DOVDD (digital I/O) regulator\n");
- ret = PTR_ERR(sensor->dovdd);
- goto error_endpoint;
- }
- /* AVDD: analog */
- sensor->avdd = devm_regulator_get_optional(dev, "avdd");
- if (IS_ERR(sensor->avdd)) {
- dev_info(dev, "no AVDD regulator provided, using internal\n");
- sensor->avdd = NULL;
- }
- /* External Clock */
- sensor->xvclk = devm_clk_get(dev, NULL);
- if (IS_ERR(sensor->xvclk)) {
- dev_err(dev, "failed to get external clock\n");
- ret = PTR_ERR(sensor->xvclk);
- goto error_endpoint;
- }
- rate = clk_get_rate(sensor->xvclk);
- if (rate != OV5648_XVCLK_RATE) {
- dev_err(dev, "clock rate %lu Hz is unsupported\n", rate);
- ret = -EINVAL;
- goto error_endpoint;
- }
- /* Subdev, entity and pad */
- subdev = &sensor->subdev;
- v4l2_i2c_subdev_init(subdev, client, &ov5648_subdev_ops);
- subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- subdev->entity.function = MEDIA_ENT_F_CAM_SENSOR;
- pad = &sensor->pad;
- pad->flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_pads_init(&subdev->entity, 1, pad);
- if (ret)
- goto error_entity;
- /* Mutex */
- mutex_init(&sensor->mutex);
- /* Sensor */
- ret = ov5648_ctrls_init(sensor);
- if (ret)
- goto error_mutex;
- ret = ov5648_state_init(sensor);
- if (ret)
- goto error_ctrls;
- /* Runtime PM */
- pm_runtime_enable(sensor->dev);
- pm_runtime_set_suspended(sensor->dev);
- /* V4L2 subdev register */
- ret = v4l2_async_register_subdev_sensor(subdev);
- if (ret)
- goto error_pm;
- return 0;
- error_pm:
- pm_runtime_disable(sensor->dev);
- error_ctrls:
- v4l2_ctrl_handler_free(&sensor->ctrls.handler);
- error_mutex:
- mutex_destroy(&sensor->mutex);
- error_entity:
- media_entity_cleanup(&sensor->subdev.entity);
- error_endpoint:
- v4l2_fwnode_endpoint_free(&sensor->endpoint);
- return ret;
- }
- static void ov5648_remove(struct i2c_client *client)
- {
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
- v4l2_async_unregister_subdev(subdev);
- pm_runtime_disable(sensor->dev);
- v4l2_ctrl_handler_free(&sensor->ctrls.handler);
- mutex_destroy(&sensor->mutex);
- media_entity_cleanup(&subdev->entity);
- v4l2_fwnode_endpoint_free(&sensor->endpoint);
- }
- static const struct dev_pm_ops ov5648_pm_ops = {
- SET_RUNTIME_PM_OPS(ov5648_suspend, ov5648_resume, NULL)
- };
- static const struct of_device_id ov5648_of_match[] = {
- { .compatible = "ovti,ov5648" },
- { }
- };
- MODULE_DEVICE_TABLE(of, ov5648_of_match);
- static struct i2c_driver ov5648_driver = {
- .driver = {
- .name = "ov5648",
- .of_match_table = ov5648_of_match,
- .pm = &ov5648_pm_ops,
- },
- .probe_new = ov5648_probe,
- .remove = ov5648_remove,
- };
- module_i2c_driver(ov5648_driver);
- MODULE_AUTHOR("Paul Kocialkowski <[email protected]>");
- MODULE_DESCRIPTION("V4L2 driver for the OmniVision OV5648 image sensor");
- MODULE_LICENSE("GPL v2");
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