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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/media/i2c/ov5693.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/i2c/ov5693.c')
-rw-r--r--drivers/media/i2c/ov5693.c1434
1 files changed, 1434 insertions, 0 deletions
diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c
new file mode 100644
index 0000000000..488ee6d9d3
--- /dev/null
+++ b/drivers/media/i2c/ov5693.c
@@ -0,0 +1,1434 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2013 Intel Corporation. All Rights Reserved.
+ *
+ * Adapted from the atomisp-ov5693 driver, with contributions from:
+ *
+ * Daniel Scally
+ * Jean-Michel Hautbois
+ * Fabian Wuthrich
+ * Tsuchiya Yuto
+ * Jordan Hand
+ * Jake Day
+ */
+
+#include <linux/acpi.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <media/v4l2-cci.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+
+/* System Control */
+#define OV5693_SW_RESET_REG CCI_REG8(0x0103)
+#define OV5693_SW_STREAM_REG CCI_REG8(0x0100)
+#define OV5693_START_STREAMING 0x01
+#define OV5693_STOP_STREAMING 0x00
+#define OV5693_SW_RESET 0x01
+
+#define OV5693_REG_CHIP_ID CCI_REG16(0x300a)
+/* Yes, this is right. The datasheet for the OV5693 gives its ID as 0x5690 */
+#define OV5693_CHIP_ID 0x5690
+
+/* Exposure */
+#define OV5693_EXPOSURE_CTRL_REG CCI_REG24(0x3500)
+#define OV5693_EXPOSURE_CTRL_MASK GENMASK(19, 4)
+#define OV5693_INTEGRATION_TIME_MARGIN 8
+#define OV5693_EXPOSURE_MIN 1
+#define OV5693_EXPOSURE_STEP 1
+
+/* Analogue Gain */
+#define OV5693_GAIN_CTRL_REG CCI_REG16(0x350a)
+#define OV5693_GAIN_CTRL_MASK GENMASK(10, 4)
+#define OV5693_GAIN_MIN 1
+#define OV5693_GAIN_MAX 127
+#define OV5693_GAIN_DEF 8
+#define OV5693_GAIN_STEP 1
+
+/* Digital Gain */
+#define OV5693_MWB_RED_GAIN_REG CCI_REG16(0x3400)
+#define OV5693_MWB_GREEN_GAIN_REG CCI_REG16(0x3402)
+#define OV5693_MWB_BLUE_GAIN_REG CCI_REG16(0x3404)
+#define OV5693_MWB_GAIN_MASK GENMASK(11, 0)
+#define OV5693_MWB_GAIN_MAX 0x0fff
+#define OV5693_DIGITAL_GAIN_MIN 1
+#define OV5693_DIGITAL_GAIN_MAX 4095
+#define OV5693_DIGITAL_GAIN_DEF 1024
+#define OV5693_DIGITAL_GAIN_STEP 1
+
+/* Timing and Format */
+#define OV5693_CROP_START_X_REG CCI_REG16(0x3800)
+#define OV5693_CROP_START_Y_REG CCI_REG16(0x3802)
+#define OV5693_CROP_END_X_REG CCI_REG16(0x3804)
+#define OV5693_CROP_END_Y_REG CCI_REG16(0x3806)
+#define OV5693_OUTPUT_SIZE_X_REG CCI_REG16(0x3808)
+#define OV5693_OUTPUT_SIZE_Y_REG CCI_REG16(0x380a)
+
+#define OV5693_TIMING_HTS_REG CCI_REG16(0x380c)
+#define OV5693_FIXED_PPL 2688U
+#define OV5693_TIMING_VTS_REG CCI_REG16(0x380e)
+#define OV5693_TIMING_MAX_VTS 0xffff
+#define OV5693_TIMING_MIN_VTS 0x04
+
+#define OV5693_OFFSET_START_X_REG CCI_REG16(0x3810)
+#define OV5693_OFFSET_START_Y_REG CCI_REG16(0x3812)
+
+#define OV5693_SUB_INC_X_REG CCI_REG8(0x3814)
+#define OV5693_SUB_INC_Y_REG CCI_REG8(0x3815)
+
+#define OV5693_FORMAT1_REG CCI_REG8(0x3820)
+#define OV5693_FORMAT1_FLIP_VERT_ISP_EN BIT(6)
+#define OV5693_FORMAT1_FLIP_VERT_SENSOR_EN BIT(1)
+#define OV5693_FORMAT1_VBIN_EN BIT(0)
+#define OV5693_FORMAT2_REG CCI_REG8(0x3821)
+#define OV5693_FORMAT2_HDR_EN BIT(7)
+#define OV5693_FORMAT2_FLIP_HORZ_ISP_EN BIT(2)
+#define OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN BIT(1)
+#define OV5693_FORMAT2_HBIN_EN BIT(0)
+
+#define OV5693_ISP_CTRL2_REG CCI_REG8(0x5002)
+#define OV5693_ISP_SCALE_ENABLE BIT(7)
+
+/* Pixel Array */
+#define OV5693_NATIVE_WIDTH 2624
+#define OV5693_NATIVE_HEIGHT 1956
+#define OV5693_NATIVE_START_LEFT 0
+#define OV5693_NATIVE_START_TOP 0
+#define OV5693_ACTIVE_WIDTH 2592
+#define OV5693_ACTIVE_HEIGHT 1944
+#define OV5693_ACTIVE_START_LEFT 16
+#define OV5693_ACTIVE_START_TOP 6
+#define OV5693_MIN_CROP_WIDTH 2
+#define OV5693_MIN_CROP_HEIGHT 2
+
+/* Test Pattern */
+#define OV5693_TEST_PATTERN_REG CCI_REG8(0x5e00)
+#define OV5693_TEST_PATTERN_ENABLE BIT(7)
+#define OV5693_TEST_PATTERN_ROLLING BIT(6)
+#define OV5693_TEST_PATTERN_RANDOM 0x01
+#define OV5693_TEST_PATTERN_BARS 0x00
+
+/* System Frequencies */
+#define OV5693_XVCLK_FREQ 19200000
+#define OV5693_LINK_FREQ_419_2MHZ 419200000
+#define OV5693_PIXEL_RATE 167680000
+
+#define to_ov5693_sensor(x) container_of(x, struct ov5693_device, sd)
+
+static const char * const ov5693_supply_names[] = {
+ "avdd", /* Analog power */
+ "dovdd", /* Digital I/O power */
+ "dvdd", /* Digital circuit power */
+};
+
+#define OV5693_NUM_SUPPLIES ARRAY_SIZE(ov5693_supply_names)
+
+struct ov5693_device {
+ struct device *dev;
+ struct regmap *regmap;
+
+ /* Protect against concurrent changes to controls */
+ struct mutex lock;
+
+ struct gpio_desc *reset;
+ struct gpio_desc *powerdown;
+ struct gpio_desc *privacy_led;
+ struct regulator_bulk_data supplies[OV5693_NUM_SUPPLIES];
+ struct clk *xvclk;
+
+ struct ov5693_mode {
+ struct v4l2_rect crop;
+ struct v4l2_mbus_framefmt format;
+ bool binning_x;
+ bool binning_y;
+ unsigned int inc_x_odd;
+ unsigned int inc_y_odd;
+ unsigned int vts;
+ } mode;
+ bool streaming;
+
+ struct v4l2_subdev sd;
+ struct media_pad pad;
+
+ struct ov5693_v4l2_ctrls {
+ struct v4l2_ctrl_handler handler;
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *pixel_rate;
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *analogue_gain;
+ struct v4l2_ctrl *digital_gain;
+ struct v4l2_ctrl *hflip;
+ struct v4l2_ctrl *vflip;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *test_pattern;
+ } ctrls;
+};
+
+static const struct cci_reg_sequence ov5693_global_regs[] = {
+ {CCI_REG8(0x3016), 0xf0},
+ {CCI_REG8(0x3017), 0xf0},
+ {CCI_REG8(0x3018), 0xf0},
+ {CCI_REG8(0x3022), 0x01},
+ {CCI_REG8(0x3028), 0x44},
+ {CCI_REG8(0x3098), 0x02},
+ {CCI_REG8(0x3099), 0x19},
+ {CCI_REG8(0x309a), 0x02},
+ {CCI_REG8(0x309b), 0x01},
+ {CCI_REG8(0x309c), 0x00},
+ {CCI_REG8(0x30a0), 0xd2},
+ {CCI_REG8(0x30a2), 0x01},
+ {CCI_REG8(0x30b2), 0x00},
+ {CCI_REG8(0x30b3), 0x83},
+ {CCI_REG8(0x30b4), 0x03},
+ {CCI_REG8(0x30b5), 0x04},
+ {CCI_REG8(0x30b6), 0x01},
+ {CCI_REG8(0x3080), 0x01},
+ {CCI_REG8(0x3104), 0x21},
+ {CCI_REG8(0x3106), 0x00},
+ {CCI_REG8(0x3406), 0x01},
+ {CCI_REG8(0x3503), 0x07},
+ {CCI_REG8(0x350b), 0x40},
+ {CCI_REG8(0x3601), 0x0a},
+ {CCI_REG8(0x3602), 0x38},
+ {CCI_REG8(0x3612), 0x80},
+ {CCI_REG8(0x3620), 0x54},
+ {CCI_REG8(0x3621), 0xc7},
+ {CCI_REG8(0x3622), 0x0f},
+ {CCI_REG8(0x3625), 0x10},
+ {CCI_REG8(0x3630), 0x55},
+ {CCI_REG8(0x3631), 0xf4},
+ {CCI_REG8(0x3632), 0x00},
+ {CCI_REG8(0x3633), 0x34},
+ {CCI_REG8(0x3634), 0x02},
+ {CCI_REG8(0x364d), 0x0d},
+ {CCI_REG8(0x364f), 0xdd},
+ {CCI_REG8(0x3660), 0x04},
+ {CCI_REG8(0x3662), 0x10},
+ {CCI_REG8(0x3663), 0xf1},
+ {CCI_REG8(0x3665), 0x00},
+ {CCI_REG8(0x3666), 0x20},
+ {CCI_REG8(0x3667), 0x00},
+ {CCI_REG8(0x366a), 0x80},
+ {CCI_REG8(0x3680), 0xe0},
+ {CCI_REG8(0x3681), 0x00},
+ {CCI_REG8(0x3700), 0x42},
+ {CCI_REG8(0x3701), 0x14},
+ {CCI_REG8(0x3702), 0xa0},
+ {CCI_REG8(0x3703), 0xd8},
+ {CCI_REG8(0x3704), 0x78},
+ {CCI_REG8(0x3705), 0x02},
+ {CCI_REG8(0x370a), 0x00},
+ {CCI_REG8(0x370b), 0x20},
+ {CCI_REG8(0x370c), 0x0c},
+ {CCI_REG8(0x370d), 0x11},
+ {CCI_REG8(0x370e), 0x00},
+ {CCI_REG8(0x370f), 0x40},
+ {CCI_REG8(0x3710), 0x00},
+ {CCI_REG8(0x371a), 0x1c},
+ {CCI_REG8(0x371b), 0x05},
+ {CCI_REG8(0x371c), 0x01},
+ {CCI_REG8(0x371e), 0xa1},
+ {CCI_REG8(0x371f), 0x0c},
+ {CCI_REG8(0x3721), 0x00},
+ {CCI_REG8(0x3724), 0x10},
+ {CCI_REG8(0x3726), 0x00},
+ {CCI_REG8(0x372a), 0x01},
+ {CCI_REG8(0x3730), 0x10},
+ {CCI_REG8(0x3738), 0x22},
+ {CCI_REG8(0x3739), 0xe5},
+ {CCI_REG8(0x373a), 0x50},
+ {CCI_REG8(0x373b), 0x02},
+ {CCI_REG8(0x373c), 0x41},
+ {CCI_REG8(0x373f), 0x02},
+ {CCI_REG8(0x3740), 0x42},
+ {CCI_REG8(0x3741), 0x02},
+ {CCI_REG8(0x3742), 0x18},
+ {CCI_REG8(0x3743), 0x01},
+ {CCI_REG8(0x3744), 0x02},
+ {CCI_REG8(0x3747), 0x10},
+ {CCI_REG8(0x374c), 0x04},
+ {CCI_REG8(0x3751), 0xf0},
+ {CCI_REG8(0x3752), 0x00},
+ {CCI_REG8(0x3753), 0x00},
+ {CCI_REG8(0x3754), 0xc0},
+ {CCI_REG8(0x3755), 0x00},
+ {CCI_REG8(0x3756), 0x1a},
+ {CCI_REG8(0x3758), 0x00},
+ {CCI_REG8(0x3759), 0x0f},
+ {CCI_REG8(0x376b), 0x44},
+ {CCI_REG8(0x375c), 0x04},
+ {CCI_REG8(0x3774), 0x10},
+ {CCI_REG8(0x3776), 0x00},
+ {CCI_REG8(0x377f), 0x08},
+ {CCI_REG8(0x3780), 0x22},
+ {CCI_REG8(0x3781), 0x0c},
+ {CCI_REG8(0x3784), 0x2c},
+ {CCI_REG8(0x3785), 0x1e},
+ {CCI_REG8(0x378f), 0xf5},
+ {CCI_REG8(0x3791), 0xb0},
+ {CCI_REG8(0x3795), 0x00},
+ {CCI_REG8(0x3796), 0x64},
+ {CCI_REG8(0x3797), 0x11},
+ {CCI_REG8(0x3798), 0x30},
+ {CCI_REG8(0x3799), 0x41},
+ {CCI_REG8(0x379a), 0x07},
+ {CCI_REG8(0x379b), 0xb0},
+ {CCI_REG8(0x379c), 0x0c},
+ {CCI_REG8(0x3a04), 0x06},
+ {CCI_REG8(0x3a05), 0x14},
+ {CCI_REG8(0x3e07), 0x20},
+ {CCI_REG8(0x4000), 0x08},
+ {CCI_REG8(0x4001), 0x04},
+ {CCI_REG8(0x4004), 0x08},
+ {CCI_REG8(0x4006), 0x20},
+ {CCI_REG8(0x4008), 0x24},
+ {CCI_REG8(0x4009), 0x10},
+ {CCI_REG8(0x4058), 0x00},
+ {CCI_REG8(0x4101), 0xb2},
+ {CCI_REG8(0x4307), 0x31},
+ {CCI_REG8(0x4511), 0x05},
+ {CCI_REG8(0x4512), 0x01},
+ {CCI_REG8(0x481f), 0x30},
+ {CCI_REG8(0x4826), 0x2c},
+ {CCI_REG8(0x4d02), 0xfd},
+ {CCI_REG8(0x4d03), 0xf5},
+ {CCI_REG8(0x4d04), 0x0c},
+ {CCI_REG8(0x4d05), 0xcc},
+ {CCI_REG8(0x4837), 0x0a},
+ {CCI_REG8(0x5003), 0x20},
+ {CCI_REG8(0x5013), 0x00},
+ {CCI_REG8(0x5842), 0x01},
+ {CCI_REG8(0x5843), 0x2b},
+ {CCI_REG8(0x5844), 0x01},
+ {CCI_REG8(0x5845), 0x92},
+ {CCI_REG8(0x5846), 0x01},
+ {CCI_REG8(0x5847), 0x8f},
+ {CCI_REG8(0x5848), 0x01},
+ {CCI_REG8(0x5849), 0x0c},
+ {CCI_REG8(0x5e10), 0x0c},
+ {CCI_REG8(0x3820), 0x00},
+ {CCI_REG8(0x3821), 0x1e},
+ {CCI_REG8(0x5041), 0x14}
+};
+
+static const struct v4l2_rect ov5693_default_crop = {
+ .left = OV5693_ACTIVE_START_LEFT,
+ .top = OV5693_ACTIVE_START_TOP,
+ .width = OV5693_ACTIVE_WIDTH,
+ .height = OV5693_ACTIVE_HEIGHT,
+};
+
+static const struct v4l2_mbus_framefmt ov5693_default_fmt = {
+ .width = OV5693_ACTIVE_WIDTH,
+ .height = OV5693_ACTIVE_HEIGHT,
+ .code = MEDIA_BUS_FMT_SBGGR10_1X10,
+};
+
+static const s64 link_freq_menu_items[] = {
+ OV5693_LINK_FREQ_419_2MHZ
+};
+
+static const char * const ov5693_test_pattern_menu[] = {
+ "Disabled",
+ "Random Data",
+ "Colour Bars",
+ "Colour Bars with Rolling Bar"
+};
+
+static const u8 ov5693_test_pattern_bits[] = {
+ 0,
+ OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_RANDOM,
+ OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS,
+ OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS |
+ OV5693_TEST_PATTERN_ROLLING,
+};
+
+/* V4L2 Controls Functions */
+
+static int ov5693_flip_vert_configure(struct ov5693_device *ov5693,
+ bool enable)
+{
+ u8 bits = OV5693_FORMAT1_FLIP_VERT_ISP_EN |
+ OV5693_FORMAT1_FLIP_VERT_SENSOR_EN;
+ int ret;
+
+ ret = cci_update_bits(ov5693->regmap, OV5693_FORMAT1_REG, bits,
+ enable ? bits : 0, NULL);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int ov5693_flip_horz_configure(struct ov5693_device *ov5693,
+ bool enable)
+{
+ u8 bits = OV5693_FORMAT2_FLIP_HORZ_ISP_EN |
+ OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN;
+ int ret;
+
+ ret = cci_update_bits(ov5693->regmap, OV5693_FORMAT2_REG, bits,
+ enable ? bits : 0, NULL);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int ov5693_get_exposure(struct ov5693_device *ov5693, s32 *value)
+{
+ u64 exposure;
+ int ret;
+
+ ret = cci_read(ov5693->regmap, OV5693_EXPOSURE_CTRL_REG, &exposure,
+ NULL);
+ if (ret)
+ return ret;
+
+ /* The lowest 4 bits are unsupported fractional bits */
+ *value = exposure >> 4;
+
+ return 0;
+}
+
+static int ov5693_exposure_configure(struct ov5693_device *ov5693,
+ u32 exposure)
+{
+ int ret = 0;
+
+ exposure = (exposure << 4) & OV5693_EXPOSURE_CTRL_MASK;
+
+ cci_write(ov5693->regmap, OV5693_EXPOSURE_CTRL_REG, exposure, &ret);
+
+ return ret;
+}
+
+static int ov5693_get_gain(struct ov5693_device *ov5693, u32 *gain)
+{
+ u64 value;
+ int ret;
+
+ ret = cci_read(ov5693->regmap, OV5693_GAIN_CTRL_REG, &value, NULL);
+ if (ret)
+ return ret;
+
+ /* As with exposure, the lowest 4 bits are fractional bits. */
+ *gain = value >> 4;
+
+ return ret;
+}
+
+static int ov5693_digital_gain_configure(struct ov5693_device *ov5693,
+ u32 gain)
+{
+ int ret = 0;
+
+ gain &= OV5693_MWB_GAIN_MASK;
+
+ cci_write(ov5693->regmap, OV5693_MWB_RED_GAIN_REG, gain, &ret);
+ cci_write(ov5693->regmap, OV5693_MWB_GREEN_GAIN_REG, gain, &ret);
+ cci_write(ov5693->regmap, OV5693_MWB_BLUE_GAIN_REG, gain, &ret);
+
+ return ret;
+}
+
+static int ov5693_analog_gain_configure(struct ov5693_device *ov5693, u32 gain)
+{
+ int ret = 0;
+
+ gain = (gain << 4) & OV5693_GAIN_CTRL_MASK;
+
+ cci_write(ov5693->regmap, OV5693_GAIN_CTRL_REG, gain, &ret);
+
+ return ret;
+}
+
+static int ov5693_vts_configure(struct ov5693_device *ov5693, u32 vblank)
+{
+ u16 vts = ov5693->mode.format.height + vblank;
+ int ret = 0;
+
+ cci_write(ov5693->regmap, OV5693_TIMING_VTS_REG, vts, &ret);
+
+ return ret;
+}
+
+static int ov5693_test_pattern_configure(struct ov5693_device *ov5693, u32 idx)
+{
+ int ret = 0;
+
+ cci_write(ov5693->regmap, OV5693_TEST_PATTERN_REG,
+ ov5693_test_pattern_bits[idx], &ret);
+
+ return ret;
+}
+
+static int ov5693_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov5693_device *ov5693 =
+ container_of(ctrl->handler, struct ov5693_device, ctrls.handler);
+ int ret = 0;
+
+ /* If VBLANK is altered we need to update exposure to compensate */
+ if (ctrl->id == V4L2_CID_VBLANK) {
+ int exposure_max;
+
+ exposure_max = ov5693->mode.format.height + ctrl->val -
+ OV5693_INTEGRATION_TIME_MARGIN;
+ __v4l2_ctrl_modify_range(ov5693->ctrls.exposure,
+ ov5693->ctrls.exposure->minimum,
+ exposure_max,
+ ov5693->ctrls.exposure->step,
+ min(ov5693->ctrls.exposure->val,
+ exposure_max));
+ }
+
+ /* Only apply changes to the controls if the device is powered up */
+ if (!pm_runtime_get_if_in_use(ov5693->dev))
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ ret = ov5693_exposure_configure(ov5693, ctrl->val);
+ break;
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = ov5693_analog_gain_configure(ov5693, ctrl->val);
+ break;
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = ov5693_digital_gain_configure(ov5693, ctrl->val);
+ break;
+ case V4L2_CID_HFLIP:
+ ret = ov5693_flip_horz_configure(ov5693, !!ctrl->val);
+ break;
+ case V4L2_CID_VFLIP:
+ ret = ov5693_flip_vert_configure(ov5693, !!ctrl->val);
+ break;
+ case V4L2_CID_VBLANK:
+ ret = ov5693_vts_configure(ov5693, ctrl->val);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ ret = ov5693_test_pattern_configure(ov5693, ctrl->val);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ pm_runtime_put(ov5693->dev);
+
+ return ret;
+}
+
+static int ov5693_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov5693_device *ov5693 = container_of(ctrl->handler,
+ struct ov5693_device,
+ ctrls.handler);
+
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE_ABSOLUTE:
+ return ov5693_get_exposure(ov5693, &ctrl->val);
+ case V4L2_CID_AUTOGAIN:
+ return ov5693_get_gain(ov5693, &ctrl->val);
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct v4l2_ctrl_ops ov5693_ctrl_ops = {
+ .s_ctrl = ov5693_s_ctrl,
+ .g_volatile_ctrl = ov5693_g_volatile_ctrl
+};
+
+/* System Control Functions */
+
+static int ov5693_mode_configure(struct ov5693_device *ov5693)
+{
+ const struct ov5693_mode *mode = &ov5693->mode;
+ int ret = 0;
+
+ /* Crop Start X */
+ cci_write(ov5693->regmap, OV5693_CROP_START_X_REG, mode->crop.left,
+ &ret);
+
+ /* Offset X */
+ cci_write(ov5693->regmap, OV5693_OFFSET_START_X_REG, 0, &ret);
+
+ /* Output Size X */
+ cci_write(ov5693->regmap, OV5693_OUTPUT_SIZE_X_REG, mode->format.width,
+ &ret);
+
+ /* Crop End X */
+ cci_write(ov5693->regmap, OV5693_CROP_END_X_REG,
+ mode->crop.left + mode->crop.width, &ret);
+
+ /* Horizontal Total Size */
+ cci_write(ov5693->regmap, OV5693_TIMING_HTS_REG, OV5693_FIXED_PPL,
+ &ret);
+
+ /* Crop Start Y */
+ cci_write(ov5693->regmap, OV5693_CROP_START_Y_REG, mode->crop.top,
+ &ret);
+
+ /* Offset Y */
+ cci_write(ov5693->regmap, OV5693_OFFSET_START_Y_REG, 0, &ret);
+
+ /* Output Size Y */
+ cci_write(ov5693->regmap, OV5693_OUTPUT_SIZE_Y_REG, mode->format.height,
+ &ret);
+
+ /* Crop End Y */
+ cci_write(ov5693->regmap, OV5693_CROP_END_Y_REG,
+ mode->crop.top + mode->crop.height, &ret);
+
+ /* Subsample X increase */
+ cci_write(ov5693->regmap, OV5693_SUB_INC_X_REG,
+ ((mode->inc_x_odd << 4) & 0xf0) | 0x01, &ret);
+ /* Subsample Y increase */
+ cci_write(ov5693->regmap, OV5693_SUB_INC_Y_REG,
+ ((mode->inc_y_odd << 4) & 0xf0) | 0x01, &ret);
+
+ /* Binning */
+ cci_update_bits(ov5693->regmap, OV5693_FORMAT1_REG,
+ OV5693_FORMAT1_VBIN_EN,
+ mode->binning_y ? OV5693_FORMAT1_VBIN_EN : 0, &ret);
+
+ cci_update_bits(ov5693->regmap, OV5693_FORMAT2_REG,
+ OV5693_FORMAT2_HBIN_EN,
+ mode->binning_x ? OV5693_FORMAT2_HBIN_EN : 0, &ret);
+
+ return ret;
+}
+
+static int ov5693_enable_streaming(struct ov5693_device *ov5693, bool enable)
+{
+ int ret = 0;
+
+ cci_write(ov5693->regmap, OV5693_SW_STREAM_REG,
+ enable ? OV5693_START_STREAMING : OV5693_STOP_STREAMING,
+ &ret);
+
+ return ret;
+}
+
+static int ov5693_sw_reset(struct ov5693_device *ov5693)
+{
+ int ret = 0;
+
+ cci_write(ov5693->regmap, OV5693_SW_RESET_REG, OV5693_SW_RESET, &ret);
+
+ return ret;
+}
+
+static int ov5693_sensor_init(struct ov5693_device *ov5693)
+{
+ int ret;
+
+ ret = ov5693_sw_reset(ov5693);
+ if (ret)
+ return dev_err_probe(ov5693->dev, ret,
+ "software reset error\n");
+
+ ret = cci_multi_reg_write(ov5693->regmap, ov5693_global_regs,
+ ARRAY_SIZE(ov5693_global_regs), NULL);
+ if (ret)
+ return dev_err_probe(ov5693->dev, ret,
+ "global settings error\n");
+
+ ret = ov5693_mode_configure(ov5693);
+ if (ret)
+ return dev_err_probe(ov5693->dev, ret,
+ "mode configure error\n");
+
+ ret = ov5693_enable_streaming(ov5693, false);
+ if (ret)
+ dev_err(ov5693->dev, "stop streaming error\n");
+
+ return ret;
+}
+
+static void ov5693_sensor_powerdown(struct ov5693_device *ov5693)
+{
+ gpiod_set_value_cansleep(ov5693->privacy_led, 0);
+ gpiod_set_value_cansleep(ov5693->reset, 1);
+ gpiod_set_value_cansleep(ov5693->powerdown, 1);
+
+ regulator_bulk_disable(OV5693_NUM_SUPPLIES, ov5693->supplies);
+
+ clk_disable_unprepare(ov5693->xvclk);
+}
+
+static int ov5693_sensor_powerup(struct ov5693_device *ov5693)
+{
+ int ret;
+
+ gpiod_set_value_cansleep(ov5693->reset, 1);
+ gpiod_set_value_cansleep(ov5693->powerdown, 1);
+
+ ret = clk_prepare_enable(ov5693->xvclk);
+ if (ret) {
+ dev_err(ov5693->dev, "Failed to enable clk\n");
+ goto fail_power;
+ }
+
+ ret = regulator_bulk_enable(OV5693_NUM_SUPPLIES, ov5693->supplies);
+ if (ret) {
+ dev_err(ov5693->dev, "Failed to enable regulators\n");
+ goto fail_power;
+ }
+
+ gpiod_set_value_cansleep(ov5693->powerdown, 0);
+ gpiod_set_value_cansleep(ov5693->reset, 0);
+ gpiod_set_value_cansleep(ov5693->privacy_led, 1);
+
+ usleep_range(5000, 7500);
+
+ return 0;
+
+fail_power:
+ ov5693_sensor_powerdown(ov5693);
+ return ret;
+}
+
+static int __maybe_unused ov5693_sensor_suspend(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+ ov5693_sensor_powerdown(ov5693);
+
+ return 0;
+}
+
+static int __maybe_unused ov5693_sensor_resume(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ int ret;
+
+ mutex_lock(&ov5693->lock);
+
+ ret = ov5693_sensor_powerup(ov5693);
+ if (ret)
+ goto out_unlock;
+
+ ret = ov5693_sensor_init(ov5693);
+ if (ret) {
+ dev_err(dev, "ov5693 sensor init failure\n");
+ goto err_power;
+ }
+
+ goto out_unlock;
+
+err_power:
+ ov5693_sensor_powerdown(ov5693);
+out_unlock:
+ mutex_unlock(&ov5693->lock);
+ return ret;
+}
+
+static int ov5693_detect(struct ov5693_device *ov5693)
+{
+ int ret;
+ u64 id;
+
+ ret = cci_read(ov5693->regmap, OV5693_REG_CHIP_ID, &id, NULL);
+ if (ret)
+ return ret;
+
+ if (id != OV5693_CHIP_ID)
+ return dev_err_probe(ov5693->dev, -ENODEV,
+ "sensor ID mismatch. Got 0x%04llx\n", id);
+
+ return 0;
+}
+
+/* V4L2 Framework callbacks */
+
+static unsigned int __ov5693_calc_vts(u32 height)
+{
+ /*
+ * We need to set a sensible default VTS for whatever format height we
+ * happen to be given from set_fmt(). This function just targets
+ * an even multiple of 30fps.
+ */
+
+ unsigned int tgt_fps;
+
+ tgt_fps = rounddown(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / height, 30);
+
+ return ALIGN_DOWN(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / tgt_fps, 2);
+}
+
+static struct v4l2_mbus_framefmt *
+__ov5693_get_pad_format(struct ov5693_device *ov5693,
+ struct v4l2_subdev_state *state,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_format(&ov5693->sd, state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &ov5693->mode.format;
+ default:
+ return NULL;
+ }
+}
+
+static struct v4l2_rect *
+__ov5693_get_pad_crop(struct ov5693_device *ov5693,
+ struct v4l2_subdev_state *state,
+ unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_get_try_crop(&ov5693->sd, state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return &ov5693->mode.crop;
+ }
+
+ return NULL;
+}
+
+static int ov5693_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+ format->format = ov5693->mode.format;
+
+ return 0;
+}
+
+static int ov5693_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ const struct v4l2_rect *crop;
+ struct v4l2_mbus_framefmt *fmt;
+ unsigned int hratio, vratio;
+ unsigned int width, height;
+ unsigned int hblank;
+ int exposure_max;
+
+ crop = __ov5693_get_pad_crop(ov5693, state, format->pad, format->which);
+
+ /*
+ * Align to two to simplify the binning calculations below, and clamp
+ * the requested format at the crop rectangle
+ */
+ width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
+ OV5693_MIN_CROP_WIDTH, crop->width);
+ height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
+ OV5693_MIN_CROP_HEIGHT, crop->height);
+
+ /*
+ * We can only support setting either the dimensions of the crop rect
+ * or those dimensions binned (separately) by a factor of two.
+ */
+ hratio = clamp_t(unsigned int,
+ DIV_ROUND_CLOSEST(crop->width, width), 1, 2);
+ vratio = clamp_t(unsigned int,
+ DIV_ROUND_CLOSEST(crop->height, height), 1, 2);
+
+ fmt = __ov5693_get_pad_format(ov5693, state, format->pad,
+ format->which);
+
+ fmt->width = crop->width / hratio;
+ fmt->height = crop->height / vratio;
+ fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+
+ format->format = *fmt;
+
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+ return 0;
+
+ mutex_lock(&ov5693->lock);
+
+ ov5693->mode.binning_x = hratio > 1;
+ ov5693->mode.inc_x_odd = hratio > 1 ? 3 : 1;
+ ov5693->mode.binning_y = vratio > 1;
+ ov5693->mode.inc_y_odd = vratio > 1 ? 3 : 1;
+
+ ov5693->mode.vts = __ov5693_calc_vts(fmt->height);
+
+ __v4l2_ctrl_modify_range(ov5693->ctrls.vblank,
+ OV5693_TIMING_MIN_VTS,
+ OV5693_TIMING_MAX_VTS - fmt->height,
+ 1, ov5693->mode.vts - fmt->height);
+ __v4l2_ctrl_s_ctrl(ov5693->ctrls.vblank,
+ ov5693->mode.vts - fmt->height);
+
+ hblank = OV5693_FIXED_PPL - fmt->width;
+ __v4l2_ctrl_modify_range(ov5693->ctrls.hblank, hblank, hblank, 1,
+ hblank);
+
+ exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN;
+ __v4l2_ctrl_modify_range(ov5693->ctrls.exposure,
+ ov5693->ctrls.exposure->minimum, exposure_max,
+ ov5693->ctrls.exposure->step,
+ min(ov5693->ctrls.exposure->val,
+ exposure_max));
+
+ mutex_unlock(&ov5693->lock);
+ return 0;
+}
+
+static int ov5693_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ mutex_lock(&ov5693->lock);
+ sel->r = *__ov5693_get_pad_crop(ov5693, state, sel->pad,
+ sel->which);
+ mutex_unlock(&ov5693->lock);
+ break;
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = OV5693_NATIVE_WIDTH;
+ sel->r.height = OV5693_NATIVE_HEIGHT;
+ break;
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ sel->r.top = OV5693_ACTIVE_START_TOP;
+ sel->r.left = OV5693_ACTIVE_START_LEFT;
+ sel->r.width = OV5693_ACTIVE_WIDTH;
+ sel->r.height = OV5693_ACTIVE_HEIGHT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ov5693_set_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ struct v4l2_mbus_framefmt *format;
+ struct v4l2_rect *__crop;
+ struct v4l2_rect rect;
+
+ if (sel->target != V4L2_SEL_TGT_CROP)
+ return -EINVAL;
+
+ /*
+ * Clamp the boundaries of the crop rectangle to the size of the sensor
+ * pixel array. Align to multiples of 2 to ensure Bayer pattern isn't
+ * disrupted.
+ */
+ rect.left = clamp(ALIGN(sel->r.left, 2), OV5693_NATIVE_START_LEFT,
+ OV5693_NATIVE_WIDTH);
+ rect.top = clamp(ALIGN(sel->r.top, 2), OV5693_NATIVE_START_TOP,
+ OV5693_NATIVE_HEIGHT);
+ rect.width = clamp_t(unsigned int, ALIGN(sel->r.width, 2),
+ OV5693_MIN_CROP_WIDTH, OV5693_NATIVE_WIDTH);
+ rect.height = clamp_t(unsigned int, ALIGN(sel->r.height, 2),
+ OV5693_MIN_CROP_HEIGHT, OV5693_NATIVE_HEIGHT);
+
+ /* Make sure the crop rectangle isn't outside the bounds of the array */
+ rect.width = min_t(unsigned int, rect.width,
+ OV5693_NATIVE_WIDTH - rect.left);
+ rect.height = min_t(unsigned int, rect.height,
+ OV5693_NATIVE_HEIGHT - rect.top);
+
+ __crop = __ov5693_get_pad_crop(ov5693, state, sel->pad, sel->which);
+
+ if (rect.width != __crop->width || rect.height != __crop->height) {
+ /*
+ * Reset the output image size if the crop rectangle size has
+ * been modified.
+ */
+ format = __ov5693_get_pad_format(ov5693, state, sel->pad,
+ sel->which);
+ format->width = rect.width;
+ format->height = rect.height;
+ }
+
+ *__crop = rect;
+ sel->r = rect;
+
+ return 0;
+}
+
+static int ov5693_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ int ret;
+
+ if (enable) {
+ ret = pm_runtime_get_sync(ov5693->dev);
+ if (ret < 0)
+ goto err_power_down;
+
+ mutex_lock(&ov5693->lock);
+ ret = __v4l2_ctrl_handler_setup(&ov5693->ctrls.handler);
+ if (ret) {
+ mutex_unlock(&ov5693->lock);
+ goto err_power_down;
+ }
+
+ ret = ov5693_enable_streaming(ov5693, true);
+ mutex_unlock(&ov5693->lock);
+ } else {
+ mutex_lock(&ov5693->lock);
+ ret = ov5693_enable_streaming(ov5693, false);
+ mutex_unlock(&ov5693->lock);
+ }
+ if (ret)
+ goto err_power_down;
+
+ ov5693->streaming = !!enable;
+
+ if (!enable)
+ pm_runtime_put(ov5693->dev);
+
+ return 0;
+err_power_down:
+ pm_runtime_put_noidle(ov5693->dev);
+ return ret;
+}
+
+static int ov5693_g_frame_interval(struct v4l2_subdev *sd,
+ struct v4l2_subdev_frame_interval *interval)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ unsigned int framesize = OV5693_FIXED_PPL * (ov5693->mode.format.height +
+ ov5693->ctrls.vblank->val);
+ unsigned int fps = DIV_ROUND_CLOSEST(OV5693_PIXEL_RATE, framesize);
+
+ interval->interval.numerator = 1;
+ interval->interval.denominator = fps;
+
+ return 0;
+}
+
+static int ov5693_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ /* Only a single mbus format is supported */
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+ return 0;
+}
+
+static int ov5693_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+ struct v4l2_rect *__crop;
+
+ if (fse->index > 1 || fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
+ return -EINVAL;
+
+ __crop = __ov5693_get_pad_crop(ov5693, state, fse->pad, fse->which);
+ if (!__crop)
+ return -EINVAL;
+
+ fse->min_width = __crop->width / (fse->index + 1);
+ fse->min_height = __crop->height / (fse->index + 1);
+ fse->max_width = fse->min_width;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops ov5693_video_ops = {
+ .s_stream = ov5693_s_stream,
+ .g_frame_interval = ov5693_g_frame_interval,
+};
+
+static const struct v4l2_subdev_pad_ops ov5693_pad_ops = {
+ .enum_mbus_code = ov5693_enum_mbus_code,
+ .enum_frame_size = ov5693_enum_frame_size,
+ .get_fmt = ov5693_get_fmt,
+ .set_fmt = ov5693_set_fmt,
+ .get_selection = ov5693_get_selection,
+ .set_selection = ov5693_set_selection,
+};
+
+static const struct v4l2_subdev_ops ov5693_ops = {
+ .video = &ov5693_video_ops,
+ .pad = &ov5693_pad_ops,
+};
+
+/* Sensor and Driver Configuration Functions */
+
+static int ov5693_init_controls(struct ov5693_device *ov5693)
+{
+ const struct v4l2_ctrl_ops *ops = &ov5693_ctrl_ops;
+ struct ov5693_v4l2_ctrls *ctrls = &ov5693->ctrls;
+ struct v4l2_fwnode_device_properties props;
+ int vblank_max, vblank_def;
+ int exposure_max;
+ int hblank;
+ int ret;
+
+ ret = v4l2_ctrl_handler_init(&ctrls->handler, 12);
+ if (ret)
+ return ret;
+
+ /* link freq */
+ ctrls->link_freq = v4l2_ctrl_new_int_menu(&ctrls->handler,
+ NULL, V4L2_CID_LINK_FREQ,
+ 0, 0, link_freq_menu_items);
+ if (ctrls->link_freq)
+ ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ /* pixel rate */
+ ctrls->pixel_rate = v4l2_ctrl_new_std(&ctrls->handler, NULL,
+ V4L2_CID_PIXEL_RATE, 0,
+ OV5693_PIXEL_RATE, 1,
+ OV5693_PIXEL_RATE);
+
+ /* Exposure */
+ exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN;
+ ctrls->exposure = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_EXPOSURE,
+ OV5693_EXPOSURE_MIN, exposure_max,
+ OV5693_EXPOSURE_STEP, exposure_max);
+
+ /* Gain */
+ ctrls->analogue_gain = v4l2_ctrl_new_std(&ctrls->handler,
+ ops, V4L2_CID_ANALOGUE_GAIN,
+ OV5693_GAIN_MIN,
+ OV5693_GAIN_MAX,
+ OV5693_GAIN_STEP,
+ OV5693_GAIN_DEF);
+
+ ctrls->digital_gain = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_DIGITAL_GAIN,
+ OV5693_DIGITAL_GAIN_MIN,
+ OV5693_DIGITAL_GAIN_MAX,
+ OV5693_DIGITAL_GAIN_STEP,
+ OV5693_DIGITAL_GAIN_DEF);
+
+ /* Flip */
+ ctrls->hflip = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+
+ ctrls->vflip = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ hblank = OV5693_FIXED_PPL - ov5693->mode.format.width;
+ ctrls->hblank = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_HBLANK, hblank,
+ hblank, 1, hblank);
+
+ if (ctrls->hblank)
+ ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ vblank_max = OV5693_TIMING_MAX_VTS - ov5693->mode.format.height;
+ vblank_def = ov5693->mode.vts - ov5693->mode.format.height;
+ ctrls->vblank = v4l2_ctrl_new_std(&ctrls->handler, ops,
+ V4L2_CID_VBLANK,
+ OV5693_TIMING_MIN_VTS,
+ vblank_max, 1, vblank_def);
+
+ ctrls->test_pattern = v4l2_ctrl_new_std_menu_items(
+ &ctrls->handler, ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ov5693_test_pattern_menu) - 1,
+ 0, 0, ov5693_test_pattern_menu);
+
+ if (ctrls->handler.error) {
+ dev_err(ov5693->dev, "Error initialising v4l2 ctrls\n");
+ ret = ctrls->handler.error;
+ goto err_free_handler;
+ }
+
+ /* set properties from fwnode (e.g. rotation, orientation) */
+ ret = v4l2_fwnode_device_parse(ov5693->dev, &props);
+ if (ret)
+ goto err_free_handler;
+
+ ret = v4l2_ctrl_new_fwnode_properties(&ctrls->handler, ops,
+ &props);
+ if (ret)
+ goto err_free_handler;
+
+ /* Use same lock for controls as for everything else. */
+ ctrls->handler.lock = &ov5693->lock;
+ ov5693->sd.ctrl_handler = &ctrls->handler;
+
+ return 0;
+
+err_free_handler:
+ v4l2_ctrl_handler_free(&ctrls->handler);
+ return ret;
+}
+
+static int ov5693_configure_gpios(struct ov5693_device *ov5693)
+{
+ ov5693->reset = devm_gpiod_get_optional(ov5693->dev, "reset",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(ov5693->reset)) {
+ dev_err(ov5693->dev, "Error fetching reset GPIO\n");
+ return PTR_ERR(ov5693->reset);
+ }
+
+ ov5693->powerdown = devm_gpiod_get_optional(ov5693->dev, "powerdown",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(ov5693->powerdown)) {
+ dev_err(ov5693->dev, "Error fetching powerdown GPIO\n");
+ return PTR_ERR(ov5693->powerdown);
+ }
+
+ ov5693->privacy_led = devm_gpiod_get_optional(ov5693->dev, "privacy-led",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(ov5693->privacy_led)) {
+ dev_err(ov5693->dev, "Error fetching privacy-led GPIO\n");
+ return PTR_ERR(ov5693->privacy_led);
+ }
+
+ return 0;
+}
+
+static int ov5693_get_regulators(struct ov5693_device *ov5693)
+{
+ unsigned int i;
+
+ for (i = 0; i < OV5693_NUM_SUPPLIES; i++)
+ ov5693->supplies[i].supply = ov5693_supply_names[i];
+
+ return devm_regulator_bulk_get(ov5693->dev, OV5693_NUM_SUPPLIES,
+ ov5693->supplies);
+}
+
+static int ov5693_check_hwcfg(struct ov5693_device *ov5693)
+{
+ struct fwnode_handle *fwnode = dev_fwnode(ov5693->dev);
+ struct v4l2_fwnode_endpoint bus_cfg = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY,
+ };
+ struct fwnode_handle *endpoint;
+ unsigned int i;
+ int ret;
+
+ endpoint = fwnode_graph_get_next_endpoint(fwnode, NULL);
+ if (!endpoint)
+ return -EPROBE_DEFER; /* Could be provided by cio2-bridge */
+
+ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg);
+ fwnode_handle_put(endpoint);
+ if (ret)
+ return ret;
+
+ if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) {
+ dev_err(ov5693->dev, "only a 2-lane CSI2 config is supported");
+ ret = -EINVAL;
+ goto out_free_bus_cfg;
+ }
+
+ if (!bus_cfg.nr_of_link_frequencies) {
+ dev_err(ov5693->dev, "no link frequencies defined\n");
+ ret = -EINVAL;
+ goto out_free_bus_cfg;
+ }
+
+ for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++)
+ if (bus_cfg.link_frequencies[i] == OV5693_LINK_FREQ_419_2MHZ)
+ break;
+
+ if (i == bus_cfg.nr_of_link_frequencies) {
+ dev_err(ov5693->dev, "supported link freq %ull not found\n",
+ OV5693_LINK_FREQ_419_2MHZ);
+ ret = -EINVAL;
+ goto out_free_bus_cfg;
+ }
+
+out_free_bus_cfg:
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+
+ return ret;
+}
+
+static int ov5693_probe(struct i2c_client *client)
+{
+ struct ov5693_device *ov5693;
+ u32 xvclk_rate;
+ int ret = 0;
+
+ ov5693 = devm_kzalloc(&client->dev, sizeof(*ov5693), GFP_KERNEL);
+ if (!ov5693)
+ return -ENOMEM;
+
+ ov5693->dev = &client->dev;
+
+ ov5693->regmap = devm_cci_regmap_init_i2c(client, 16);
+ if (IS_ERR(ov5693->regmap))
+ return PTR_ERR(ov5693->regmap);
+
+ ret = ov5693_check_hwcfg(ov5693);
+ if (ret)
+ return ret;
+
+ mutex_init(&ov5693->lock);
+
+ v4l2_i2c_subdev_init(&ov5693->sd, client, &ov5693_ops);
+
+ ov5693->xvclk = devm_clk_get_optional(&client->dev, "xvclk");
+ if (IS_ERR(ov5693->xvclk))
+ return dev_err_probe(&client->dev, PTR_ERR(ov5693->xvclk),
+ "failed to get xvclk: %ld\n",
+ PTR_ERR(ov5693->xvclk));
+
+ if (ov5693->xvclk) {
+ xvclk_rate = clk_get_rate(ov5693->xvclk);
+ } else {
+ ret = fwnode_property_read_u32(dev_fwnode(&client->dev),
+ "clock-frequency",
+ &xvclk_rate);
+
+ if (ret) {
+ dev_err(&client->dev, "can't get clock frequency");
+ return ret;
+ }
+ }
+
+ if (xvclk_rate != OV5693_XVCLK_FREQ)
+ dev_warn(&client->dev, "Found clk freq %u, expected %u\n",
+ xvclk_rate, OV5693_XVCLK_FREQ);
+
+ ret = ov5693_configure_gpios(ov5693);
+ if (ret)
+ return ret;
+
+ ret = ov5693_get_regulators(ov5693);
+ if (ret)
+ return dev_err_probe(&client->dev, ret,
+ "Error fetching regulators\n");
+
+ ov5693->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ov5693->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ov5693->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+ ov5693->mode.crop = ov5693_default_crop;
+ ov5693->mode.format = ov5693_default_fmt;
+ ov5693->mode.vts = __ov5693_calc_vts(ov5693->mode.format.height);
+
+ ret = ov5693_init_controls(ov5693);
+ if (ret)
+ return ret;
+
+ ret = media_entity_pads_init(&ov5693->sd.entity, 1, &ov5693->pad);
+ if (ret)
+ goto err_ctrl_handler_free;
+
+ /*
+ * We need the driver to work in the event that pm runtime is disable in
+ * the kernel, so power up and verify the chip now. In the event that
+ * runtime pm is disabled this will leave the chip on, so that streaming
+ * will work.
+ */
+
+ ret = ov5693_sensor_powerup(ov5693);
+ if (ret)
+ goto err_media_entity_cleanup;
+
+ ret = ov5693_detect(ov5693);
+ if (ret)
+ goto err_powerdown;
+
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_get_noresume(&client->dev);
+ pm_runtime_enable(&client->dev);
+
+ ret = v4l2_async_register_subdev_sensor(&ov5693->sd);
+ if (ret) {
+ dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+ ret);
+ goto err_pm_runtime;
+ }
+
+ pm_runtime_set_autosuspend_delay(&client->dev, 1000);
+ pm_runtime_use_autosuspend(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+
+ return ret;
+
+err_pm_runtime:
+ pm_runtime_disable(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+err_powerdown:
+ ov5693_sensor_powerdown(ov5693);
+err_media_entity_cleanup:
+ media_entity_cleanup(&ov5693->sd.entity);
+err_ctrl_handler_free:
+ v4l2_ctrl_handler_free(&ov5693->ctrls.handler);
+
+ return ret;
+}
+
+static void ov5693_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&ov5693->sd.entity);
+ v4l2_ctrl_handler_free(&ov5693->ctrls.handler);
+ mutex_destroy(&ov5693->lock);
+
+ /*
+ * Disable runtime PM. In case runtime PM is disabled in the kernel,
+ * make sure to turn power off manually.
+ */
+ pm_runtime_disable(&client->dev);
+ if (!pm_runtime_status_suspended(&client->dev))
+ ov5693_sensor_powerdown(ov5693);
+ pm_runtime_set_suspended(&client->dev);
+}
+
+static const struct dev_pm_ops ov5693_pm_ops = {
+ SET_RUNTIME_PM_OPS(ov5693_sensor_suspend, ov5693_sensor_resume, NULL)
+};
+
+static const struct acpi_device_id ov5693_acpi_match[] = {
+ {"INT33BE"},
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, ov5693_acpi_match);
+
+static const struct of_device_id ov5693_of_match[] = {
+ { .compatible = "ovti,ov5693", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ov5693_of_match);
+
+static struct i2c_driver ov5693_driver = {
+ .driver = {
+ .name = "ov5693",
+ .acpi_match_table = ov5693_acpi_match,
+ .of_match_table = ov5693_of_match,
+ .pm = &ov5693_pm_ops,
+ },
+ .probe = ov5693_probe,
+ .remove = ov5693_remove,
+};
+module_i2c_driver(ov5693_driver);
+
+MODULE_DESCRIPTION("A low-level driver for OmniVision 5693 sensors");
+MODULE_LICENSE("GPL");