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ed5c2f5fd1
linux/drivers/media/i2c/imx355.c
Uwe Kleine-König ed5c2f5fd1 i2c: Make remove callback return void 
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00

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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Intel Corporation
#include <asm/unaligned.h>
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#define IMX355_REG_MODE_SELECT 0x0100
#define IMX355_MODE_STANDBY 0x00
#define IMX355_MODE_STREAMING 0x01
/* Chip ID */
#define IMX355_REG_CHIP_ID 0x0016
#define IMX355_CHIP_ID 0x0355
/* V_TIMING internal */
#define IMX355_REG_FLL 0x0340
#define IMX355_FLL_MAX 0xffff
/* Exposure control */
#define IMX355_REG_EXPOSURE 0x0202
#define IMX355_EXPOSURE_MIN 1
#define IMX355_EXPOSURE_STEP 1
#define IMX355_EXPOSURE_DEFAULT 0x0282
/* Analog gain control */
#define IMX355_REG_ANALOG_GAIN 0x0204
#define IMX355_ANA_GAIN_MIN 0
#define IMX355_ANA_GAIN_MAX 960
#define IMX355_ANA_GAIN_STEP 1
#define IMX355_ANA_GAIN_DEFAULT 0
/* Digital gain control */
#define IMX355_REG_DPGA_USE_GLOBAL_GAIN 0x3070
#define IMX355_REG_DIG_GAIN_GLOBAL 0x020e
#define IMX355_DGTL_GAIN_MIN 256
#define IMX355_DGTL_GAIN_MAX 4095
#define IMX355_DGTL_GAIN_STEP 1
#define IMX355_DGTL_GAIN_DEFAULT 256
/* Test Pattern Control */
#define IMX355_REG_TEST_PATTERN 0x0600
#define IMX355_TEST_PATTERN_DISABLED 0
#define IMX355_TEST_PATTERN_SOLID_COLOR 1
#define IMX355_TEST_PATTERN_COLOR_BARS 2
#define IMX355_TEST_PATTERN_GRAY_COLOR_BARS 3
#define IMX355_TEST_PATTERN_PN9 4
/* Flip Control */
#define IMX355_REG_ORIENTATION 0x0101
/* default link frequency and external clock */
#define IMX355_LINK_FREQ_DEFAULT 360000000
#define IMX355_EXT_CLK 19200000
#define IMX355_LINK_FREQ_INDEX 0
struct imx355_reg {
u16 address;
u8 val;
};
struct imx355_reg_list {
u32 num_of_regs;
const struct imx355_reg *regs;
};
/* Mode : resolution and related config&values */
struct imx355_mode {
/* Frame width */
u32 width;
/* Frame height */
u32 height;
/* V-timing */
u32 fll_def;
u32 fll_min;
/* H-timing */
u32 llp;
/* index of link frequency */
u32 link_freq_index;
/* Default register values */
struct imx355_reg_list reg_list;
};
struct imx355_hwcfg {
u32 ext_clk; /* sensor external clk */
s64 *link_freqs; /* CSI-2 link frequencies */
unsigned int nr_of_link_freqs;
};
struct imx355 {
struct v4l2_subdev sd;
struct media_pad pad;
struct v4l2_ctrl_handler ctrl_handler;
/* V4L2 Controls */
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *pixel_rate;
struct v4l2_ctrl *vblank;
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *exposure;
struct v4l2_ctrl *vflip;
struct v4l2_ctrl *hflip;
/* Current mode */
const struct imx355_mode *cur_mode;
struct imx355_hwcfg *hwcfg;
s64 link_def_freq; /* CSI-2 link default frequency */
/*
* Mutex for serialized access:
* Protect sensor set pad format and start/stop streaming safely.
* Protect access to sensor v4l2 controls.
*/
struct mutex mutex;
/* Streaming on/off */
bool streaming;
};
static const struct imx355_reg imx355_global_regs[] = {
{ 0x0136, 0x13 },
{ 0x0137, 0x33 },
{ 0x304e, 0x03 },
{ 0x4348, 0x16 },
{ 0x4350, 0x19 },
{ 0x4408, 0x0a },
{ 0x440c, 0x0b },
{ 0x4411, 0x5f },
{ 0x4412, 0x2c },
{ 0x4623, 0x00 },
{ 0x462c, 0x0f },
{ 0x462d, 0x00 },
{ 0x462e, 0x00 },
{ 0x4684, 0x54 },
{ 0x480a, 0x07 },
{ 0x4908, 0x07 },
{ 0x4909, 0x07 },
{ 0x490d, 0x0a },
{ 0x491e, 0x0f },
{ 0x4921, 0x06 },
{ 0x4923, 0x28 },
{ 0x4924, 0x28 },
{ 0x4925, 0x29 },
{ 0x4926, 0x29 },
{ 0x4927, 0x1f },
{ 0x4928, 0x20 },
{ 0x4929, 0x20 },
{ 0x492a, 0x20 },
{ 0x492c, 0x05 },
{ 0x492d, 0x06 },
{ 0x492e, 0x06 },
{ 0x492f, 0x06 },
{ 0x4930, 0x03 },
{ 0x4931, 0x04 },
{ 0x4932, 0x04 },
{ 0x4933, 0x05 },
{ 0x595e, 0x01 },
{ 0x5963, 0x01 },
{ 0x3030, 0x01 },
{ 0x3031, 0x01 },
{ 0x3045, 0x01 },
{ 0x4010, 0x00 },
{ 0x4011, 0x00 },
{ 0x4012, 0x00 },
{ 0x4013, 0x01 },
{ 0x68a8, 0xfe },
{ 0x68a9, 0xff },
{ 0x6888, 0x00 },
{ 0x6889, 0x00 },
{ 0x68b0, 0x00 },
{ 0x3058, 0x00 },
{ 0x305a, 0x00 },
};
static const struct imx355_reg_list imx355_global_setting = {
.num_of_regs = ARRAY_SIZE(imx355_global_regs),
.regs = imx355_global_regs,
};
static const struct imx355_reg mode_3268x2448_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x0a },
{ 0x0341, 0x37 },
{ 0x0344, 0x00 },
{ 0x0345, 0x08 },
{ 0x0346, 0x00 },
{ 0x0347, 0x08 },
{ 0x0348, 0x0c },
{ 0x0349, 0xcb },
{ 0x034a, 0x09 },
{ 0x034b, 0x97 },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x0c },
{ 0x034d, 0xc4 },
{ 0x034e, 0x09 },
{ 0x034f, 0x90 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_3264x2448_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x0a },
{ 0x0341, 0x37 },
{ 0x0344, 0x00 },
{ 0x0345, 0x08 },
{ 0x0346, 0x00 },
{ 0x0347, 0x08 },
{ 0x0348, 0x0c },
{ 0x0349, 0xc7 },
{ 0x034a, 0x09 },
{ 0x034b, 0x97 },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x0c },
{ 0x034d, 0xc0 },
{ 0x034e, 0x09 },
{ 0x034f, 0x90 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_3280x2464_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x0a },
{ 0x0341, 0x37 },
{ 0x0344, 0x00 },
{ 0x0345, 0x00 },
{ 0x0346, 0x00 },
{ 0x0347, 0x00 },
{ 0x0348, 0x0c },
{ 0x0349, 0xcf },
{ 0x034a, 0x09 },
{ 0x034b, 0x9f },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x0c },
{ 0x034d, 0xd0 },
{ 0x034e, 0x09 },
{ 0x034f, 0xa0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1940x1096_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x02 },
{ 0x0345, 0xa0 },
{ 0x0346, 0x02 },
{ 0x0347, 0xac },
{ 0x0348, 0x0a },
{ 0x0349, 0x33 },
{ 0x034a, 0x06 },
{ 0x034b, 0xf3 },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x07 },
{ 0x034d, 0x94 },
{ 0x034e, 0x04 },
{ 0x034f, 0x48 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1936x1096_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x02 },
{ 0x0345, 0xa0 },
{ 0x0346, 0x02 },
{ 0x0347, 0xac },
{ 0x0348, 0x0a },
{ 0x0349, 0x2f },
{ 0x034a, 0x06 },
{ 0x034b, 0xf3 },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x07 },
{ 0x034d, 0x90 },
{ 0x034e, 0x04 },
{ 0x034f, 0x48 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1924x1080_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x02 },
{ 0x0345, 0xa8 },
{ 0x0346, 0x02 },
{ 0x0347, 0xb4 },
{ 0x0348, 0x0a },
{ 0x0349, 0x2b },
{ 0x034a, 0x06 },
{ 0x034b, 0xeb },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x07 },
{ 0x034d, 0x84 },
{ 0x034e, 0x04 },
{ 0x034f, 0x38 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1920x1080_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x02 },
{ 0x0345, 0xa8 },
{ 0x0346, 0x02 },
{ 0x0347, 0xb4 },
{ 0x0348, 0x0a },
{ 0x0349, 0x27 },
{ 0x034a, 0x06 },
{ 0x034b, 0xeb },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x00 },
{ 0x0901, 0x11 },
{ 0x0902, 0x00 },
{ 0x034c, 0x07 },
{ 0x034d, 0x80 },
{ 0x034e, 0x04 },
{ 0x034f, 0x38 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1640x1232_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x00 },
{ 0x0345, 0x00 },
{ 0x0346, 0x00 },
{ 0x0347, 0x00 },
{ 0x0348, 0x0c },
{ 0x0349, 0xcf },
{ 0x034a, 0x09 },
{ 0x034b, 0x9f },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x06 },
{ 0x034d, 0x68 },
{ 0x034e, 0x04 },
{ 0x034f, 0xd0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1640x922_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x00 },
{ 0x0345, 0x00 },
{ 0x0346, 0x01 },
{ 0x0347, 0x30 },
{ 0x0348, 0x0c },
{ 0x0349, 0xcf },
{ 0x034a, 0x08 },
{ 0x034b, 0x63 },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x06 },
{ 0x034d, 0x68 },
{ 0x034e, 0x03 },
{ 0x034f, 0x9a },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1300x736_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x01 },
{ 0x0345, 0x58 },
{ 0x0346, 0x01 },
{ 0x0347, 0xf0 },
{ 0x0348, 0x0b },
{ 0x0349, 0x7f },
{ 0x034a, 0x07 },
{ 0x034b, 0xaf },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x05 },
{ 0x034d, 0x14 },
{ 0x034e, 0x02 },
{ 0x034f, 0xe0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1296x736_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x01 },
{ 0x0345, 0x58 },
{ 0x0346, 0x01 },
{ 0x0347, 0xf0 },
{ 0x0348, 0x0b },
{ 0x0349, 0x77 },
{ 0x034a, 0x07 },
{ 0x034b, 0xaf },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x05 },
{ 0x034d, 0x10 },
{ 0x034e, 0x02 },
{ 0x034f, 0xe0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1284x720_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x01 },
{ 0x0345, 0x68 },
{ 0x0346, 0x02 },
{ 0x0347, 0x00 },
{ 0x0348, 0x0b },
{ 0x0349, 0x6f },
{ 0x034a, 0x07 },
{ 0x034b, 0x9f },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x05 },
{ 0x034d, 0x04 },
{ 0x034e, 0x02 },
{ 0x034f, 0xd0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_1280x720_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x07 },
{ 0x0343, 0x2c },
{ 0x0340, 0x05 },
{ 0x0341, 0x1a },
{ 0x0344, 0x01 },
{ 0x0345, 0x68 },
{ 0x0346, 0x02 },
{ 0x0347, 0x00 },
{ 0x0348, 0x0b },
{ 0x0349, 0x67 },
{ 0x034a, 0x07 },
{ 0x034b, 0x9f },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x22 },
{ 0x0902, 0x00 },
{ 0x034c, 0x05 },
{ 0x034d, 0x00 },
{ 0x034e, 0x02 },
{ 0x034f, 0xd0 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x00 },
{ 0x0701, 0x10 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const struct imx355_reg mode_820x616_regs[] = {
{ 0x0112, 0x0a },
{ 0x0113, 0x0a },
{ 0x0114, 0x03 },
{ 0x0342, 0x0e },
{ 0x0343, 0x58 },
{ 0x0340, 0x02 },
{ 0x0341, 0x8c },
{ 0x0344, 0x00 },
{ 0x0345, 0x00 },
{ 0x0346, 0x00 },
{ 0x0347, 0x00 },
{ 0x0348, 0x0c },
{ 0x0349, 0xcf },
{ 0x034a, 0x09 },
{ 0x034b, 0x9f },
{ 0x0220, 0x00 },
{ 0x0222, 0x01 },
{ 0x0900, 0x01 },
{ 0x0901, 0x44 },
{ 0x0902, 0x00 },
{ 0x034c, 0x03 },
{ 0x034d, 0x34 },
{ 0x034e, 0x02 },
{ 0x034f, 0x68 },
{ 0x0301, 0x05 },
{ 0x0303, 0x01 },
{ 0x0305, 0x02 },
{ 0x0306, 0x00 },
{ 0x0307, 0x78 },
{ 0x030b, 0x01 },
{ 0x030d, 0x02 },
{ 0x030e, 0x00 },
{ 0x030f, 0x4b },
{ 0x0310, 0x00 },
{ 0x0700, 0x02 },
{ 0x0701, 0x78 },
{ 0x0820, 0x0b },
{ 0x0821, 0x40 },
{ 0x3088, 0x04 },
{ 0x6813, 0x02 },
{ 0x6835, 0x07 },
{ 0x6836, 0x01 },
{ 0x6837, 0x04 },
{ 0x684d, 0x07 },
{ 0x684e, 0x01 },
{ 0x684f, 0x04 },
};
static const char * const imx355_test_pattern_menu[] = {
"Disabled",
"Solid Colour",
"Eight Vertical Colour Bars",
"Colour Bars With Fade to Grey",
"Pseudorandom Sequence (PN9)",
};
/* supported link frequencies */
static const s64 link_freq_menu_items[] = {
IMX355_LINK_FREQ_DEFAULT,
};
/* Mode configs */
static const struct imx355_mode supported_modes[] = {
{
.width = 3280,
.height = 2464,
.fll_def = 2615,
.fll_min = 2615,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_3280x2464_regs),
.regs = mode_3280x2464_regs,
},
},
{
.width = 3268,
.height = 2448,
.fll_def = 2615,
.fll_min = 2615,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_3268x2448_regs),
.regs = mode_3268x2448_regs,
},
},
{
.width = 3264,
.height = 2448,
.fll_def = 2615,
.fll_min = 2615,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_3264x2448_regs),
.regs = mode_3264x2448_regs,
},
},
{
.width = 1940,
.height = 1096,
.fll_def = 1306,
.fll_min = 1306,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1940x1096_regs),
.regs = mode_1940x1096_regs,
},
},
{
.width = 1936,
.height = 1096,
.fll_def = 1306,
.fll_min = 1306,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1936x1096_regs),
.regs = mode_1936x1096_regs,
},
},
{
.width = 1924,
.height = 1080,
.fll_def = 1306,
.fll_min = 1306,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1924x1080_regs),
.regs = mode_1924x1080_regs,
},
},
{
.width = 1920,
.height = 1080,
.fll_def = 1306,
.fll_min = 1306,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1920x1080_regs),
.regs = mode_1920x1080_regs,
},
},
{
.width = 1640,
.height = 1232,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1640x1232_regs),
.regs = mode_1640x1232_regs,
},
},
{
.width = 1640,
.height = 922,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1640x922_regs),
.regs = mode_1640x922_regs,
},
},
{
.width = 1300,
.height = 736,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1300x736_regs),
.regs = mode_1300x736_regs,
},
},
{
.width = 1296,
.height = 736,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1296x736_regs),
.regs = mode_1296x736_regs,
},
},
{
.width = 1284,
.height = 720,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1284x720_regs),
.regs = mode_1284x720_regs,
},
},
{
.width = 1280,
.height = 720,
.fll_def = 1306,
.fll_min = 1306,
.llp = 1836,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
.regs = mode_1280x720_regs,
},
},
{
.width = 820,
.height = 616,
.fll_def = 652,
.fll_min = 652,
.llp = 3672,
.link_freq_index = IMX355_LINK_FREQ_INDEX,
.reg_list = {
.num_of_regs = ARRAY_SIZE(mode_820x616_regs),
.regs = mode_820x616_regs,
},
},
};
static inline struct imx355 *to_imx355(struct v4l2_subdev *_sd)
{
return container_of(_sd, struct imx355, sd);
}
/* Get bayer order based on flip setting. */
static u32 imx355_get_format_code(struct imx355 *imx355)
{
/*
* Only one bayer order is supported.
* It depends on the flip settings.
*/
u32 code;
static const u32 codes[2][2] = {
{ MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10, },
{ MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, },
};
lockdep_assert_held(&imx355->mutex);
code = codes[imx355->vflip->val][imx355->hflip->val];
return code;
}
/* Read registers up to 4 at a time */
static int imx355_read_reg(struct imx355 *imx355, u16 reg, u32 len, u32 *val)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
struct i2c_msg msgs[2];
u8 addr_buf[2];
u8 data_buf[4] = { 0 };
int ret;
if (len > 4)
return -EINVAL;
put_unaligned_be16(reg, addr_buf);
/* Write register address */
msgs[0].addr = client->addr;
msgs[0].flags = 0;
msgs[0].len = ARRAY_SIZE(addr_buf);
msgs[0].buf = addr_buf;
/* Read data from register */
msgs[1].addr = client->addr;
msgs[1].flags = I2C_M_RD;
msgs[1].len = len;
msgs[1].buf = &data_buf[4 - len];
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs))
return -EIO;
*val = get_unaligned_be32(data_buf);
return 0;
}
/* Write registers up to 4 at a time */
static int imx355_write_reg(struct imx355 *imx355, u16 reg, u32 len, u32 val)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
u8 buf[6];
if (len > 4)
return -EINVAL;
put_unaligned_be16(reg, buf);
put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
if (i2c_master_send(client, buf, len + 2) != len + 2)
return -EIO;
return 0;
}
/* Write a list of registers */
static int imx355_write_regs(struct imx355 *imx355,
const struct imx355_reg *regs, u32 len)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
int ret;
u32 i;
for (i = 0; i < len; i++) {
ret = imx355_write_reg(imx355, regs[i].address, 1, regs[i].val);
if (ret) {
dev_err_ratelimited(&client->dev,
"write reg 0x%4.4x return err %d",
regs[i].address, ret);
return ret;
}
}
return 0;
}
/* Open sub-device */
static int imx355_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx355 *imx355 = to_imx355(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->state, 0);
mutex_lock(&imx355->mutex);
/* Initialize try_fmt */
try_fmt->width = imx355->cur_mode->width;
try_fmt->height = imx355->cur_mode->height;
try_fmt->code = imx355_get_format_code(imx355);
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&imx355->mutex);
return 0;
}
static int imx355_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx355 *imx355 = container_of(ctrl->handler,
struct imx355, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
s64 max;
int ret;
/* Propagate change of current control to all related controls */
switch (ctrl->id) {
case V4L2_CID_VBLANK:
/* Update max exposure while meeting expected vblanking */
max = imx355->cur_mode->height + ctrl->val - 10;
__v4l2_ctrl_modify_range(imx355->exposure,
imx355->exposure->minimum,
max, imx355->exposure->step, max);
break;
}
/*
* Applying V4L2 control value only happens
* when power is up for streaming
*/
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
switch (ctrl->id) {
case V4L2_CID_ANALOGUE_GAIN:
/* Analog gain = 1024/(1024 - ctrl->val) times */
ret = imx355_write_reg(imx355, IMX355_REG_ANALOG_GAIN, 2,
ctrl->val);
break;
case V4L2_CID_DIGITAL_GAIN:
ret = imx355_write_reg(imx355, IMX355_REG_DIG_GAIN_GLOBAL, 2,
ctrl->val);
break;
case V4L2_CID_EXPOSURE:
ret = imx355_write_reg(imx355, IMX355_REG_EXPOSURE, 2,
ctrl->val);
break;
case V4L2_CID_VBLANK:
/* Update FLL that meets expected vertical blanking */
ret = imx355_write_reg(imx355, IMX355_REG_FLL, 2,
imx355->cur_mode->height + ctrl->val);
break;
case V4L2_CID_TEST_PATTERN:
ret = imx355_write_reg(imx355, IMX355_REG_TEST_PATTERN,
2, ctrl->val);
break;
case V4L2_CID_HFLIP:
case V4L2_CID_VFLIP:
ret = imx355_write_reg(imx355, IMX355_REG_ORIENTATION, 1,
imx355->hflip->val |
imx355->vflip->val << 1);
break;
default:
ret = -EINVAL;
dev_info(&client->dev, "ctrl(id:0x%x,val:0x%x) is not handled",
ctrl->id, ctrl->val);
break;
}
pm_runtime_put(&client->dev);
return ret;
}
static const struct v4l2_ctrl_ops imx355_ctrl_ops = {
.s_ctrl = imx355_set_ctrl,
};
static int imx355_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
struct imx355 *imx355 = to_imx355(sd);
if (code->index > 0)
return -EINVAL;
mutex_lock(&imx355->mutex);
code->code = imx355_get_format_code(imx355);
mutex_unlock(&imx355->mutex);
return 0;
}
static int imx355_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct imx355 *imx355 = to_imx355(sd);
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
mutex_lock(&imx355->mutex);
if (fse->code != imx355_get_format_code(imx355)) {
mutex_unlock(&imx355->mutex);
return -EINVAL;
}
mutex_unlock(&imx355->mutex);
fse->min_width = supported_modes[fse->index].width;
fse->max_width = fse->min_width;
fse->min_height = supported_modes[fse->index].height;
fse->max_height = fse->min_height;
return 0;
}
static void imx355_update_pad_format(struct imx355 *imx355,
const struct imx355_mode *mode,
struct v4l2_subdev_format *fmt)
{
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = imx355_get_format_code(imx355);
fmt->format.field = V4L2_FIELD_NONE;
}
static int imx355_do_get_pad_format(struct imx355 *imx355,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt;
struct v4l2_subdev *sd = &imx355->sd;
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
fmt->format = *framefmt;
} else {
imx355_update_pad_format(imx355, imx355->cur_mode, fmt);
}
return 0;
}
static int imx355_get_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct imx355 *imx355 = to_imx355(sd);
int ret;
mutex_lock(&imx355->mutex);
ret = imx355_do_get_pad_format(imx355, sd_state, fmt);
mutex_unlock(&imx355->mutex);
return ret;
}
static int
imx355_set_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct imx355 *imx355 = to_imx355(sd);
const struct imx355_mode *mode;
struct v4l2_mbus_framefmt *framefmt;
s32 vblank_def;
s32 vblank_min;
s64 h_blank;
u64 pixel_rate;
u32 height;
mutex_lock(&imx355->mutex);
/*
* Only one bayer order is supported.
* It depends on the flip settings.
*/
fmt->format.code = imx355_get_format_code(imx355);
mode = v4l2_find_nearest_size(supported_modes,
ARRAY_SIZE(supported_modes),
width, height,
fmt->format.width, fmt->format.height);
imx355_update_pad_format(imx355, mode, fmt);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
*framefmt = fmt->format;
} else {
imx355->cur_mode = mode;
pixel_rate = imx355->link_def_freq * 2 * 4;
do_div(pixel_rate, 10);
__v4l2_ctrl_s_ctrl_int64(imx355->pixel_rate, pixel_rate);
/* Update limits and set FPS to default */
height = imx355->cur_mode->height;
vblank_def = imx355->cur_mode->fll_def - height;
vblank_min = imx355->cur_mode->fll_min - height;
height = IMX355_FLL_MAX - height;
__v4l2_ctrl_modify_range(imx355->vblank, vblank_min, height, 1,
vblank_def);
__v4l2_ctrl_s_ctrl(imx355->vblank, vblank_def);
h_blank = mode->llp - imx355->cur_mode->width;
/*
* Currently hblank is not changeable.
* So FPS control is done only by vblank.
*/
__v4l2_ctrl_modify_range(imx355->hblank, h_blank,
h_blank, 1, h_blank);
}
mutex_unlock(&imx355->mutex);
return 0;
}
/* Start streaming */
static int imx355_start_streaming(struct imx355 *imx355)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
const struct imx355_reg_list *reg_list;
int ret;
/* Global Setting */
reg_list = &imx355_global_setting;
ret = imx355_write_regs(imx355, reg_list->regs, reg_list->num_of_regs);
if (ret) {
dev_err(&client->dev, "failed to set global settings");
return ret;
}
/* Apply default values of current mode */
reg_list = &imx355->cur_mode->reg_list;
ret = imx355_write_regs(imx355, reg_list->regs, reg_list->num_of_regs);
if (ret) {
dev_err(&client->dev, "failed to set mode");
return ret;
}
/* set digital gain control to all color mode */
ret = imx355_write_reg(imx355, IMX355_REG_DPGA_USE_GLOBAL_GAIN, 1, 1);
if (ret)
return ret;
/* Apply customized values from user */
ret = __v4l2_ctrl_handler_setup(imx355->sd.ctrl_handler);
if (ret)
return ret;
return imx355_write_reg(imx355, IMX355_REG_MODE_SELECT,
1, IMX355_MODE_STREAMING);
}
/* Stop streaming */
static int imx355_stop_streaming(struct imx355 *imx355)
{
return imx355_write_reg(imx355, IMX355_REG_MODE_SELECT,
1, IMX355_MODE_STANDBY);
}
static int imx355_set_stream(struct v4l2_subdev *sd, int enable)
{
struct imx355 *imx355 = to_imx355(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = 0;
mutex_lock(&imx355->mutex);
if (imx355->streaming == enable) {
mutex_unlock(&imx355->mutex);
return 0;
}
if (enable) {
ret = pm_runtime_resume_and_get(&client->dev);
if (ret < 0)
goto err_unlock;
/*
* Apply default & customized values
* and then start streaming.
*/
ret = imx355_start_streaming(imx355);
if (ret)
goto err_rpm_put;
} else {
imx355_stop_streaming(imx355);
pm_runtime_put(&client->dev);
}
imx355->streaming = enable;
/* vflip and hflip cannot change during streaming */
__v4l2_ctrl_grab(imx355->vflip, enable);
__v4l2_ctrl_grab(imx355->hflip, enable);
mutex_unlock(&imx355->mutex);
return ret;
err_rpm_put:
pm_runtime_put(&client->dev);
err_unlock:
mutex_unlock(&imx355->mutex);
return ret;
}
static int __maybe_unused imx355_suspend(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct imx355 *imx355 = to_imx355(sd);
if (imx355->streaming)
imx355_stop_streaming(imx355);
return 0;
}
static int __maybe_unused imx355_resume(struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct imx355 *imx355 = to_imx355(sd);
int ret;
if (imx355->streaming) {
ret = imx355_start_streaming(imx355);
if (ret)
goto error;
}
return 0;
error:
imx355_stop_streaming(imx355);
imx355->streaming = 0;
return ret;
}
/* Verify chip ID */
static int imx355_identify_module(struct imx355 *imx355)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
int ret;
u32 val;
ret = imx355_read_reg(imx355, IMX355_REG_CHIP_ID, 2, &val);
if (ret)
return ret;
if (val != IMX355_CHIP_ID) {
dev_err(&client->dev, "chip id mismatch: %x!=%x",
IMX355_CHIP_ID, val);
return -EIO;
}
return 0;
}
static const struct v4l2_subdev_core_ops imx355_subdev_core_ops = {
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
};
static const struct v4l2_subdev_video_ops imx355_video_ops = {
.s_stream = imx355_set_stream,
};
static const struct v4l2_subdev_pad_ops imx355_pad_ops = {
.enum_mbus_code = imx355_enum_mbus_code,
.get_fmt = imx355_get_pad_format,
.set_fmt = imx355_set_pad_format,
.enum_frame_size = imx355_enum_frame_size,
};
static const struct v4l2_subdev_ops imx355_subdev_ops = {
.core = &imx355_subdev_core_ops,
.video = &imx355_video_ops,
.pad = &imx355_pad_ops,
};
static const struct media_entity_operations imx355_subdev_entity_ops = {
.link_validate = v4l2_subdev_link_validate,
};
static const struct v4l2_subdev_internal_ops imx355_internal_ops = {
.open = imx355_open,
};
/* Initialize control handlers */
static int imx355_init_controls(struct imx355 *imx355)
{
struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
struct v4l2_ctrl_handler *ctrl_hdlr;
s64 exposure_max;
s64 vblank_def;
s64 vblank_min;
s64 hblank;
u64 pixel_rate;
const struct imx355_mode *mode;
u32 max;
int ret;
ctrl_hdlr = &imx355->ctrl_handler;
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
if (ret)
return ret;
ctrl_hdlr->lock = &imx355->mutex;
max = ARRAY_SIZE(link_freq_menu_items) - 1;
imx355->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_LINK_FREQ, max, 0,
link_freq_menu_items);
if (imx355->link_freq)
imx355->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
pixel_rate = imx355->link_def_freq * 2 * 4;
do_div(pixel_rate, 10);
/* By default, PIXEL_RATE is read only */
imx355->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_PIXEL_RATE, pixel_rate,
pixel_rate, 1, pixel_rate);
/* Initialize vblank/hblank/exposure parameters based on current mode */
mode = imx355->cur_mode;
vblank_def = mode->fll_def - mode->height;
vblank_min = mode->fll_min - mode->height;
imx355->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_VBLANK, vblank_min,
IMX355_FLL_MAX - mode->height,
1, vblank_def);
hblank = mode->llp - mode->width;
imx355->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_HBLANK, hblank, hblank,
1, hblank);
if (imx355->hblank)
imx355->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* fll >= exposure time + adjust parameter (default value is 10) */
exposure_max = mode->fll_def - 10;
imx355->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_EXPOSURE,
IMX355_EXPOSURE_MIN, exposure_max,
IMX355_EXPOSURE_STEP,
IMX355_EXPOSURE_DEFAULT);
imx355->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
imx355->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
IMX355_ANA_GAIN_MIN, IMX355_ANA_GAIN_MAX,
IMX355_ANA_GAIN_STEP, IMX355_ANA_GAIN_DEFAULT);
/* Digital gain */
v4l2_ctrl_new_std(ctrl_hdlr, &imx355_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
IMX355_DGTL_GAIN_MIN, IMX355_DGTL_GAIN_MAX,
IMX355_DGTL_GAIN_STEP, IMX355_DGTL_GAIN_DEFAULT);
v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx355_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(imx355_test_pattern_menu) - 1,
0, 0, imx355_test_pattern_menu);
if (ctrl_hdlr->error) {
ret = ctrl_hdlr->error;
dev_err(&client->dev, "control init failed: %d", ret);
goto error;
}
imx355->sd.ctrl_handler = ctrl_hdlr;
return 0;
error:
v4l2_ctrl_handler_free(ctrl_hdlr);
return ret;
}
static struct imx355_hwcfg *imx355_get_hwcfg(struct device *dev)
{
struct imx355_hwcfg *cfg;
struct v4l2_fwnode_endpoint bus_cfg = {
.bus_type = V4L2_MBUS_CSI2_DPHY
};
struct fwnode_handle *ep;
struct fwnode_handle *fwnode = dev_fwnode(dev);
unsigned int i;
int ret;
if (!fwnode)
return NULL;
ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
if (!ep)
return NULL;
ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
if (ret)
goto out_err;
cfg = devm_kzalloc(dev, sizeof(*cfg), GFP_KERNEL);
if (!cfg)
goto out_err;
ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
&cfg->ext_clk);
if (ret) {
dev_err(dev, "can't get clock frequency");
goto out_err;
}
dev_dbg(dev, "ext clk: %d", cfg->ext_clk);
if (cfg->ext_clk != IMX355_EXT_CLK) {
dev_err(dev, "external clock %d is not supported",
cfg->ext_clk);
goto out_err;
}
dev_dbg(dev, "num of link freqs: %d", bus_cfg.nr_of_link_frequencies);
if (!bus_cfg.nr_of_link_frequencies) {
dev_warn(dev, "no link frequencies defined");
goto out_err;
}
cfg->nr_of_link_freqs = bus_cfg.nr_of_link_frequencies;
cfg->link_freqs = devm_kcalloc(dev,
bus_cfg.nr_of_link_frequencies + 1,
sizeof(*cfg->link_freqs), GFP_KERNEL);
if (!cfg->link_freqs)
goto out_err;
for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) {
cfg->link_freqs[i] = bus_cfg.link_frequencies[i];
dev_dbg(dev, "link_freq[%d] = %lld", i, cfg->link_freqs[i]);
}
v4l2_fwnode_endpoint_free(&bus_cfg);
fwnode_handle_put(ep);
return cfg;
out_err:
v4l2_fwnode_endpoint_free(&bus_cfg);
fwnode_handle_put(ep);
return NULL;
}
static int imx355_probe(struct i2c_client *client)
{
struct imx355 *imx355;
int ret;
u32 i;
imx355 = devm_kzalloc(&client->dev, sizeof(*imx355), GFP_KERNEL);
if (!imx355)
return -ENOMEM;
mutex_init(&imx355->mutex);
/* Initialize subdev */
v4l2_i2c_subdev_init(&imx355->sd, client, &imx355_subdev_ops);
/* Check module identity */
ret = imx355_identify_module(imx355);
if (ret) {
dev_err(&client->dev, "failed to find sensor: %d", ret);
goto error_probe;
}
imx355->hwcfg = imx355_get_hwcfg(&client->dev);
if (!imx355->hwcfg) {
dev_err(&client->dev, "failed to get hwcfg");
ret = -ENODEV;
goto error_probe;
}
imx355->link_def_freq = link_freq_menu_items[IMX355_LINK_FREQ_INDEX];
for (i = 0; i < imx355->hwcfg->nr_of_link_freqs; i++) {
if (imx355->hwcfg->link_freqs[i] == imx355->link_def_freq) {
dev_dbg(&client->dev, "link freq index %d matched", i);
break;
}
}
if (i == imx355->hwcfg->nr_of_link_freqs) {
dev_err(&client->dev, "no link frequency supported");
ret = -EINVAL;
goto error_probe;
}
/* Set default mode to max resolution */
imx355->cur_mode = &supported_modes[0];
ret = imx355_init_controls(imx355);
if (ret) {
dev_err(&client->dev, "failed to init controls: %d", ret);
goto error_probe;
}
/* Initialize subdev */
imx355->sd.internal_ops = &imx355_internal_ops;
imx355->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
V4L2_SUBDEV_FL_HAS_EVENTS;
imx355->sd.entity.ops = &imx355_subdev_entity_ops;
imx355->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
/* Initialize source pad */
imx355->pad.flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_pads_init(&imx355->sd.entity, 1, &imx355->pad);
if (ret) {
dev_err(&client->dev, "failed to init entity pads: %d", ret);
goto error_handler_free;
}
ret = v4l2_async_register_subdev_sensor(&imx355->sd);
if (ret < 0)
goto error_media_entity;
/*
* Device is already turned on by i2c-core with ACPI domain PM.
* Enable runtime PM and turn off the device.
*/
pm_runtime_set_active(&client->dev);
pm_runtime_enable(&client->dev);
pm_runtime_idle(&client->dev);
return 0;
error_media_entity:
media_entity_cleanup(&imx355->sd.entity);
error_handler_free:
v4l2_ctrl_handler_free(imx355->sd.ctrl_handler);
error_probe:
mutex_destroy(&imx355->mutex);
return ret;
}
static void imx355_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct imx355 *imx355 = to_imx355(sd);
v4l2_async_unregister_subdev(sd);
media_entity_cleanup(&sd->entity);
v4l2_ctrl_handler_free(sd->ctrl_handler);
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
mutex_destroy(&imx355->mutex);
}
static const struct dev_pm_ops imx355_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(imx355_suspend, imx355_resume)
};
static const struct acpi_device_id imx355_acpi_ids[] __maybe_unused = {
{ "SONY355A" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(acpi, imx355_acpi_ids);
static struct i2c_driver imx355_i2c_driver = {
.driver = {
.name = "imx355",
.pm = &imx355_pm_ops,
.acpi_match_table = ACPI_PTR(imx355_acpi_ids),
},
.probe_new = imx355_probe,
.remove = imx355_remove,
};
module_i2c_driver(imx355_i2c_driver);
MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu@intel.com>");
MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
MODULE_AUTHOR("Bingbu Cao <bingbu.cao@intel.com>");
MODULE_AUTHOR("Yang, Hyungwoo");
MODULE_DESCRIPTION("Sony imx355 sensor driver");
MODULE_LICENSE("GPL v2");
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