* [PATCH v7] media: add imx319 camera sensor driver
@ 2018-09-26 2:42 bingbu.cao
2018-09-26 7:57 ` Sakari Ailus
2018-10-12 4:51 ` Tomasz Figa
0 siblings, 2 replies; 10+ messages in thread
From: bingbu.cao @ 2018-09-26 2:42 UTC (permalink / raw)
To: linux-media
Cc: sakari.ailus, tfiga, rajmohan.mani, bingbu.cao, tian.shu.qiu,
jian.xu.zheng, chiranjeevi.rapolu
From: Bingbu Cao <bingbu.cao@intel.com>
Add a v4l2 sub-device driver for the Sony imx319 image sensor.
This is a camera sensor using the i2c bus for control and the
csi-2 bus for data.
This driver supports following features:
- manual exposure and analog/digital gain control support
- vblank/hblank control support
- 4 test patterns control support
- vflip/hflip control support (will impact the output bayer order)
- support following resolutions:
- 3264x2448, 3280x2464 @ 30fps
- 1936x1096, 1920x1080 @ 60fps
- 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
- support 4 bayer orders output (via change v/hflip)
- SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
---
This patch is based on sakari's media-tree git:
https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
Changes from v5:
- add some comments for gain calculation
- use lock to protect the format
- fix some style issues
Changes from v4 to v5:
- use single PLL for all internal clocks
- change link frequency to 482.4MHz
- adjust frame timing for 2x2 binning modes
and enlarge frame readout time
- get CSI-2 link frequencies and external clock
from firmware
- use unlocked __v4l2_ctrl_grab() with change from:
https://git.linuxtv.org/sailus/media_tree.git/commit/?h=unlocked-ctrl-grab
Changes since v1:
- fix some coding style issues - line breaks
- add v4l2_ctrl_grab() to prevent v/hflip change
during streaming
- add v4l2 ctrl event (un)subscribe support
- add more info into commit message
---
---
MAINTAINERS | 7 +
drivers/media/i2c/Kconfig | 11 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/imx319.c | 2556 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 2575 insertions(+)
create mode 100644 drivers/media/i2c/imx319.c
diff --git a/MAINTAINERS b/MAINTAINERS
index a5b256b25905..abc4abb6f83c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13530,6 +13530,13 @@ S: Maintained
F: drivers/media/i2c/imx274.c
F: Documentation/devicetree/bindings/media/i2c/imx274.txt
+SONY IMX319 SENSOR DRIVER
+M: Bingbu Cao <bingbu.cao@intel.com>
+L: linux-media@vger.kernel.org
+T: git git://linuxtv.org/media_tree.git
+S: Maintained
+F: drivers/media/i2c/imx319.c
+
SONY MEMORYSTICK CARD SUPPORT
M: Alex Dubov <oakad@yahoo.com>
W: http://tifmxx.berlios.de/
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index bfdb494686bf..603ac087975b 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -614,6 +614,17 @@ config VIDEO_IMX274
This is a V4L2 sensor driver for the Sony IMX274
CMOS image sensor.
+config VIDEO_IMX319
+ tristate "Sony IMX319 sensor support"
+ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+ depends on MEDIA_CAMERA_SUPPORT
+ help
+ This is a Video4Linux2 sensor driver for the Sony
+ IMX319 camera.
+
+ To compile this driver as a module, choose M here: the
+ module will be called imx319.
+
config VIDEO_OV2640
tristate "OmniVision OV2640 sensor support"
depends on VIDEO_V4L2 && I2C
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index a94eb03d10d4..d10b438577be 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -108,5 +108,6 @@ obj-$(CONFIG_VIDEO_OV2659) += ov2659.o
obj-$(CONFIG_VIDEO_TC358743) += tc358743.o
obj-$(CONFIG_VIDEO_IMX258) += imx258.o
obj-$(CONFIG_VIDEO_IMX274) += imx274.o
+obj-$(CONFIG_VIDEO_IMX319) += imx319.o
obj-$(CONFIG_SDR_MAX2175) += max2175.o
diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
new file mode 100644
index 000000000000..e10d60f500dd
--- /dev/null
+++ b/drivers/media/i2c/imx319.c
@@ -0,0 +1,2556 @@
+// 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 IMX319_REG_MODE_SELECT 0x0100
+#define IMX319_MODE_STANDBY 0x00
+#define IMX319_MODE_STREAMING 0x01
+
+/* Chip ID */
+#define IMX319_REG_CHIP_ID 0x0016
+#define IMX319_CHIP_ID 0x0319
+
+/* V_TIMING internal */
+#define IMX319_REG_FLL 0x0340
+#define IMX319_FLL_MAX 0xffff
+
+/* Exposure control */
+#define IMX319_REG_EXPOSURE 0x0202
+#define IMX319_EXPOSURE_MIN 1
+#define IMX319_EXPOSURE_STEP 1
+#define IMX319_EXPOSURE_DEFAULT 0x04f6
+
+/*
+ * the digital control register for all color control looks like:
+ * +-----------------+------------------+
+ * | [7:0] | [15:8] |
+ * +-----------------+------------------+
+ * | 0x020f | 0x020e |
+ * --------------------------------------
+ * it is used to calculate the digital gain times value(integral + fractional)
+ * the [15:8] bits is the fractional part and [7:0] bits is the integral
+ * calculation equation is:
+ * gain value (unit: times) = REG[15:8] + REG[7:0]/0x100
+ * Only value in 0x0100 ~ 0x0FFF range is allowed.
+ * Analog gain use 10 bits in the registers and allowed range is 0 ~ 960
+ */
+/* Analog gain control */
+#define IMX319_REG_ANALOG_GAIN 0x0204
+#define IMX319_ANA_GAIN_MIN 0
+#define IMX319_ANA_GAIN_MAX 960
+#define IMX319_ANA_GAIN_STEP 1
+#define IMX319_ANA_GAIN_DEFAULT 0
+
+/* Digital gain control */
+#define IMX319_REG_DPGA_USE_GLOBAL_GAIN 0x3ff9
+#define IMX319_REG_DIG_GAIN_GLOBAL 0x020e
+#define IMX319_DGTL_GAIN_MIN 256
+#define IMX319_DGTL_GAIN_MAX 4095
+#define IMX319_DGTL_GAIN_STEP 1
+#define IMX319_DGTL_GAIN_DEFAULT 256
+
+/* Test Pattern Control */
+#define IMX319_REG_TEST_PATTERN 0x0600
+#define IMX319_TEST_PATTERN_DISABLED 0
+#define IMX319_TEST_PATTERN_SOLID_COLOR 1
+#define IMX319_TEST_PATTERN_COLOR_BARS 2
+#define IMX319_TEST_PATTERN_GRAY_COLOR_BARS 3
+#define IMX319_TEST_PATTERN_PN9 4
+
+/* Flip Control */
+#define IMX319_REG_ORIENTATION 0x0101
+
+/* default link frequency and external clock */
+#define IMX319_LINK_FREQ_DEFAULT 482400000
+#define IMX319_EXT_CLK 19200000
+#define IMX319_LINK_FREQ_INDEX 0
+
+struct imx319_reg {
+ u16 address;
+ u8 val;
+};
+
+struct imx319_reg_list {
+ u32 num_of_regs;
+ const struct imx319_reg *regs;
+};
+
+/* Mode : resolution and related config&values */
+struct imx319_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 imx319_reg_list reg_list;
+};
+
+struct imx319_hwcfg {
+ u32 ext_clk; /* sensor external clk */
+ s64 *link_freqs; /* CSI-2 link frequencies */
+ unsigned int nr_of_link_freqs;
+};
+
+struct imx319 {
+ 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 imx319_mode *cur_mode;
+
+ struct imx319_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 imx319_reg imx319_global_regs[] = {
+ { 0x0136, 0x13 },
+ { 0x0137, 0x33 },
+ { 0x3c7e, 0x05 },
+ { 0x3c7f, 0x07 },
+ { 0x4d39, 0x0b },
+ { 0x4d41, 0x33 },
+ { 0x4d43, 0x0c },
+ { 0x4d49, 0x89 },
+ { 0x4e05, 0x0b },
+ { 0x4e0d, 0x33 },
+ { 0x4e0f, 0x0c },
+ { 0x4e15, 0x89 },
+ { 0x4e49, 0x2a },
+ { 0x4e51, 0x33 },
+ { 0x4e53, 0x0c },
+ { 0x4e59, 0x89 },
+ { 0x5601, 0x4f },
+ { 0x560b, 0x45 },
+ { 0x562f, 0x0a },
+ { 0x5643, 0x0a },
+ { 0x5645, 0x0c },
+ { 0x56ef, 0x51 },
+ { 0x586f, 0x33 },
+ { 0x5873, 0x89 },
+ { 0x5905, 0x33 },
+ { 0x5907, 0x89 },
+ { 0x590d, 0x33 },
+ { 0x590f, 0x89 },
+ { 0x5915, 0x33 },
+ { 0x5917, 0x89 },
+ { 0x5969, 0x1c },
+ { 0x596b, 0x72 },
+ { 0x5971, 0x33 },
+ { 0x5973, 0x89 },
+ { 0x5975, 0x33 },
+ { 0x5977, 0x89 },
+ { 0x5979, 0x1c },
+ { 0x597b, 0x72 },
+ { 0x5985, 0x33 },
+ { 0x5987, 0x89 },
+ { 0x5999, 0x1c },
+ { 0x599b, 0x72 },
+ { 0x59a5, 0x33 },
+ { 0x59a7, 0x89 },
+ { 0x7485, 0x08 },
+ { 0x7487, 0x0c },
+ { 0x7489, 0xc7 },
+ { 0x748b, 0x8b },
+ { 0x9004, 0x09 },
+ { 0x9200, 0x6a },
+ { 0x9201, 0x22 },
+ { 0x9202, 0x6a },
+ { 0x9203, 0x23 },
+ { 0x9204, 0x5f },
+ { 0x9205, 0x23 },
+ { 0x9206, 0x5f },
+ { 0x9207, 0x24 },
+ { 0x9208, 0x5f },
+ { 0x9209, 0x26 },
+ { 0x920a, 0x5f },
+ { 0x920b, 0x27 },
+ { 0x920c, 0x5f },
+ { 0x920d, 0x29 },
+ { 0x920e, 0x5f },
+ { 0x920f, 0x2a },
+ { 0x9210, 0x5f },
+ { 0x9211, 0x2c },
+ { 0xbc22, 0x1a },
+ { 0xf01f, 0x04 },
+ { 0xf021, 0x03 },
+ { 0xf023, 0x02 },
+ { 0xf03d, 0x05 },
+ { 0xf03f, 0x03 },
+ { 0xf041, 0x02 },
+ { 0xf0af, 0x04 },
+ { 0xf0b1, 0x03 },
+ { 0xf0b3, 0x02 },
+ { 0xf0cd, 0x05 },
+ { 0xf0cf, 0x03 },
+ { 0xf0d1, 0x02 },
+ { 0xf13f, 0x04 },
+ { 0xf141, 0x03 },
+ { 0xf143, 0x02 },
+ { 0xf15d, 0x05 },
+ { 0xf15f, 0x03 },
+ { 0xf161, 0x02 },
+ { 0xf1cf, 0x04 },
+ { 0xf1d1, 0x03 },
+ { 0xf1d3, 0x02 },
+ { 0xf1ed, 0x05 },
+ { 0xf1ef, 0x03 },
+ { 0xf1f1, 0x02 },
+ { 0xf287, 0x04 },
+ { 0xf289, 0x03 },
+ { 0xf28b, 0x02 },
+ { 0xf2a5, 0x05 },
+ { 0xf2a7, 0x03 },
+ { 0xf2a9, 0x02 },
+ { 0xf2b7, 0x04 },
+ { 0xf2b9, 0x03 },
+ { 0xf2bb, 0x02 },
+ { 0xf2d5, 0x05 },
+ { 0xf2d7, 0x03 },
+ { 0xf2d9, 0x02 },
+};
+
+static const struct imx319_reg_list imx319_global_setting = {
+ .num_of_regs = ARRAY_SIZE(imx319_global_regs),
+ .regs = imx319_global_regs,
+};
+
+static const struct imx319_reg mode_3264x2448_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x0f },
+ { 0x0343, 0x80 },
+ { 0x0340, 0x0c },
+ { 0x0341, 0xaa },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x00 },
+ { 0x0347, 0x00 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x09 },
+ { 0x034b, 0x9f },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x00 },
+ { 0x0901, 0x11 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x01 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0x08 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x08 },
+ { 0x040c, 0x0c },
+ { 0x040d, 0xc0 },
+ { 0x040e, 0x09 },
+ { 0x040f, 0x90 },
+ { 0x034c, 0x0c },
+ { 0x034d, 0xc0 },
+ { 0x034e, 0x09 },
+ { 0x034f, 0x90 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0x48 },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x01 },
+ { 0x3f79, 0x18 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x00 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x0a },
+ { 0x0203, 0x7a },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_3280x2464_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x0f },
+ { 0x0343, 0x80 },
+ { 0x0340, 0x0c },
+ { 0x0341, 0xaa },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x00 },
+ { 0x0347, 0x00 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x09 },
+ { 0x034b, 0x9f },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x00 },
+ { 0x0901, 0x11 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x01 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0x00 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x0c },
+ { 0x040d, 0xd0 },
+ { 0x040e, 0x09 },
+ { 0x040f, 0xa0 },
+ { 0x034c, 0x0c },
+ { 0x034d, 0xd0 },
+ { 0x034e, 0x09 },
+ { 0x034f, 0xa0 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0x48 },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x01 },
+ { 0x3f79, 0x18 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x00 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x0a },
+ { 0x0203, 0x7a },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1936x1096_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x0f },
+ { 0x0343, 0x80 },
+ { 0x0340, 0x0c },
+ { 0x0341, 0xaa },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x02 },
+ { 0x0347, 0xac },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x06 },
+ { 0x034b, 0xf3 },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x00 },
+ { 0x0901, 0x11 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x01 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x02 },
+ { 0x0409, 0xa0 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x07 },
+ { 0x040d, 0x90 },
+ { 0x040e, 0x04 },
+ { 0x040f, 0x48 },
+ { 0x034c, 0x07 },
+ { 0x034d, 0x90 },
+ { 0x034e, 0x04 },
+ { 0x034f, 0x48 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0x48 },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x01 },
+ { 0x3f79, 0x18 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x00 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x05 },
+ { 0x0203, 0x34 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1920x1080_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x0f },
+ { 0x0343, 0x80 },
+ { 0x0340, 0x0c },
+ { 0x0341, 0xaa },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x02 },
+ { 0x0347, 0xb4 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x06 },
+ { 0x034b, 0xeb },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x00 },
+ { 0x0901, 0x11 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x01 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x02 },
+ { 0x0409, 0xa8 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x07 },
+ { 0x040d, 0x80 },
+ { 0x040e, 0x04 },
+ { 0x040f, 0x38 },
+ { 0x034c, 0x07 },
+ { 0x034d, 0x80 },
+ { 0x034e, 0x04 },
+ { 0x034f, 0x38 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0x48 },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x01 },
+ { 0x3f79, 0x18 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x00 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x05 },
+ { 0x0203, 0x34 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1640x1232_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x08 },
+ { 0x0343, 0x20 },
+ { 0x0340, 0x18 },
+ { 0x0341, 0x2a },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x00 },
+ { 0x0347, 0x00 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x09 },
+ { 0x034b, 0x9f },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x01 },
+ { 0x0901, 0x22 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x02 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0x00 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x06 },
+ { 0x040d, 0x68 },
+ { 0x040e, 0x04 },
+ { 0x040f, 0xd0 },
+ { 0x034c, 0x06 },
+ { 0x034d, 0x68 },
+ { 0x034e, 0x04 },
+ { 0x034f, 0xd0 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0xba },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x00 },
+ { 0x3f79, 0x34 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x04 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x04 },
+ { 0x0203, 0xf6 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1640x922_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x08 },
+ { 0x0343, 0x20 },
+ { 0x0340, 0x18 },
+ { 0x0341, 0x2a },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x01 },
+ { 0x0347, 0x30 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x08 },
+ { 0x034b, 0x6f },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x01 },
+ { 0x0901, 0x22 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x02 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0x00 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x02 },
+ { 0x040c, 0x06 },
+ { 0x040d, 0x68 },
+ { 0x040e, 0x03 },
+ { 0x040f, 0x9a },
+ { 0x034c, 0x06 },
+ { 0x034d, 0x68 },
+ { 0x034e, 0x03 },
+ { 0x034f, 0x9a },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0xba },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x00 },
+ { 0x3f79, 0x34 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x04 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x04 },
+ { 0x0203, 0xf6 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1296x736_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x08 },
+ { 0x0343, 0x20 },
+ { 0x0340, 0x18 },
+ { 0x0341, 0x2a },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x01 },
+ { 0x0347, 0xf0 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x07 },
+ { 0x034b, 0xaf },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x01 },
+ { 0x0901, 0x22 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x02 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0xac },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x05 },
+ { 0x040d, 0x10 },
+ { 0x040e, 0x02 },
+ { 0x040f, 0xe0 },
+ { 0x034c, 0x05 },
+ { 0x034d, 0x10 },
+ { 0x034e, 0x02 },
+ { 0x034f, 0xe0 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0xba },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x00 },
+ { 0x3f79, 0x34 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x04 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x04 },
+ { 0x0203, 0xf6 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const struct imx319_reg mode_1280x720_regs[] = {
+ { 0x0112, 0x0a },
+ { 0x0113, 0x0a },
+ { 0x0114, 0x03 },
+ { 0x0342, 0x08 },
+ { 0x0343, 0x20 },
+ { 0x0340, 0x18 },
+ { 0x0341, 0x2a },
+ { 0x0344, 0x00 },
+ { 0x0345, 0x00 },
+ { 0x0346, 0x02 },
+ { 0x0347, 0x00 },
+ { 0x0348, 0x0c },
+ { 0x0349, 0xcf },
+ { 0x034a, 0x07 },
+ { 0x034b, 0x9f },
+ { 0x0220, 0x00 },
+ { 0x0221, 0x11 },
+ { 0x0381, 0x01 },
+ { 0x0383, 0x01 },
+ { 0x0385, 0x01 },
+ { 0x0387, 0x01 },
+ { 0x0900, 0x01 },
+ { 0x0901, 0x22 },
+ { 0x0902, 0x0a },
+ { 0x3140, 0x02 },
+ { 0x3141, 0x00 },
+ { 0x3f0d, 0x0a },
+ { 0x3f14, 0x01 },
+ { 0x3f3c, 0x02 },
+ { 0x3f4d, 0x01 },
+ { 0x3f4c, 0x01 },
+ { 0x4254, 0x7f },
+ { 0x0401, 0x00 },
+ { 0x0404, 0x00 },
+ { 0x0405, 0x10 },
+ { 0x0408, 0x00 },
+ { 0x0409, 0xb4 },
+ { 0x040a, 0x00 },
+ { 0x040b, 0x00 },
+ { 0x040c, 0x05 },
+ { 0x040d, 0x00 },
+ { 0x040e, 0x02 },
+ { 0x040f, 0xd0 },
+ { 0x034c, 0x05 },
+ { 0x034d, 0x00 },
+ { 0x034e, 0x02 },
+ { 0x034f, 0xd0 },
+ { 0x3261, 0x00 },
+ { 0x3264, 0x00 },
+ { 0x3265, 0x10 },
+ { 0x0301, 0x05 },
+ { 0x0303, 0x04 },
+ { 0x0305, 0x04 },
+ { 0x0306, 0x01 },
+ { 0x0307, 0x92 },
+ { 0x0309, 0x0a },
+ { 0x030b, 0x02 },
+ { 0x030d, 0x02 },
+ { 0x030e, 0x00 },
+ { 0x030f, 0xfa },
+ { 0x0310, 0x00 },
+ { 0x0820, 0x0f },
+ { 0x0821, 0x13 },
+ { 0x0822, 0x33 },
+ { 0x0823, 0x33 },
+ { 0x3e20, 0x01 },
+ { 0x3e37, 0x00 },
+ { 0x3e3b, 0x01 },
+ { 0x38a3, 0x01 },
+ { 0x38a8, 0x00 },
+ { 0x38a9, 0x00 },
+ { 0x38aa, 0x00 },
+ { 0x38ab, 0x00 },
+ { 0x3234, 0x00 },
+ { 0x3fc1, 0x00 },
+ { 0x3235, 0x00 },
+ { 0x3802, 0x00 },
+ { 0x3143, 0x04 },
+ { 0x360a, 0x00 },
+ { 0x0b00, 0x00 },
+ { 0x0106, 0x00 },
+ { 0x0b05, 0x01 },
+ { 0x0b06, 0x01 },
+ { 0x3230, 0x00 },
+ { 0x3602, 0x01 },
+ { 0x3607, 0x01 },
+ { 0x3c00, 0x00 },
+ { 0x3c01, 0xba },
+ { 0x3c02, 0xc8 },
+ { 0x3c03, 0xaa },
+ { 0x3c04, 0x91 },
+ { 0x3c05, 0x54 },
+ { 0x3c06, 0x26 },
+ { 0x3c07, 0x20 },
+ { 0x3c08, 0x51 },
+ { 0x3d80, 0x00 },
+ { 0x3f50, 0x00 },
+ { 0x3f56, 0x00 },
+ { 0x3f57, 0x30 },
+ { 0x3f78, 0x00 },
+ { 0x3f79, 0x34 },
+ { 0x3f7c, 0x00 },
+ { 0x3f7d, 0x00 },
+ { 0x3fba, 0x00 },
+ { 0x3fbb, 0x00 },
+ { 0xa081, 0x04 },
+ { 0xe014, 0x00 },
+ { 0x0202, 0x04 },
+ { 0x0203, 0xf6 },
+ { 0x0224, 0x01 },
+ { 0x0225, 0xf4 },
+ { 0x0204, 0x00 },
+ { 0x0205, 0x00 },
+ { 0x0216, 0x00 },
+ { 0x0217, 0x00 },
+ { 0x020e, 0x01 },
+ { 0x020f, 0x00 },
+ { 0x0210, 0x01 },
+ { 0x0211, 0x00 },
+ { 0x0212, 0x01 },
+ { 0x0213, 0x00 },
+ { 0x0214, 0x01 },
+ { 0x0215, 0x00 },
+ { 0x0218, 0x01 },
+ { 0x0219, 0x00 },
+ { 0x3614, 0x00 },
+ { 0x3616, 0x0d },
+ { 0x3617, 0x56 },
+ { 0xb612, 0x20 },
+ { 0xb613, 0x20 },
+ { 0xb614, 0x20 },
+ { 0xb615, 0x20 },
+ { 0xb616, 0x0a },
+ { 0xb617, 0x0a },
+ { 0xb618, 0x20 },
+ { 0xb619, 0x20 },
+ { 0xb61a, 0x20 },
+ { 0xb61b, 0x20 },
+ { 0xb61c, 0x0a },
+ { 0xb61d, 0x0a },
+ { 0xb666, 0x30 },
+ { 0xb667, 0x30 },
+ { 0xb668, 0x30 },
+ { 0xb669, 0x30 },
+ { 0xb66a, 0x14 },
+ { 0xb66b, 0x14 },
+ { 0xb66c, 0x20 },
+ { 0xb66d, 0x20 },
+ { 0xb66e, 0x20 },
+ { 0xb66f, 0x20 },
+ { 0xb670, 0x10 },
+ { 0xb671, 0x10 },
+ { 0x3237, 0x00 },
+ { 0x3900, 0x00 },
+ { 0x3901, 0x00 },
+ { 0x3902, 0x00 },
+ { 0x3904, 0x00 },
+ { 0x3905, 0x00 },
+ { 0x3906, 0x00 },
+ { 0x3907, 0x00 },
+ { 0x3908, 0x00 },
+ { 0x3909, 0x00 },
+ { 0x3912, 0x00 },
+ { 0x3930, 0x00 },
+ { 0x3931, 0x00 },
+ { 0x3933, 0x00 },
+ { 0x3934, 0x00 },
+ { 0x3935, 0x00 },
+ { 0x3936, 0x00 },
+ { 0x3937, 0x00 },
+ { 0x30ac, 0x00 },
+};
+
+static const char * const imx319_test_pattern_menu[] = {
+ "Disabled",
+ "100% color bars",
+ "Solid color",
+ "Fade to gray color bars",
+ "PN9"
+};
+
+/* supported link frequencies */
+static const s64 link_freq_menu_items[] = {
+ IMX319_LINK_FREQ_DEFAULT,
+};
+
+/* Mode configs */
+static const struct imx319_mode supported_modes[] = {
+ {
+ .width = 3280,
+ .height = 2464,
+ .fll_def = 3242,
+ .fll_min = 3242,
+ .llp = 3968,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_3280x2464_regs),
+ .regs = mode_3280x2464_regs,
+ },
+ },
+ {
+ .width = 3264,
+ .height = 2448,
+ .fll_def = 3242,
+ .fll_min = 3242,
+ .llp = 3968,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_3264x2448_regs),
+ .regs = mode_3264x2448_regs,
+ },
+ },
+ {
+ .width = 1936,
+ .height = 1096,
+ .fll_def = 3242,
+ .fll_min = 3242,
+ .llp = 3968,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1936x1096_regs),
+ .regs = mode_1936x1096_regs,
+ },
+ },
+ {
+ .width = 1920,
+ .height = 1080,
+ .fll_def = 3242,
+ .fll_min = 3242,
+ .llp = 3968,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1920x1080_regs),
+ .regs = mode_1920x1080_regs,
+ },
+ },
+ {
+ .width = 1640,
+ .height = 1232,
+ .fll_def = 5146,
+ .fll_min = 5146,
+ .llp = 2500,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1640x1232_regs),
+ .regs = mode_1640x1232_regs,
+ },
+ },
+ {
+ .width = 1640,
+ .height = 922,
+ .fll_def = 5146,
+ .fll_min = 5146,
+ .llp = 2500,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1640x922_regs),
+ .regs = mode_1640x922_regs,
+ },
+ },
+ {
+ .width = 1296,
+ .height = 736,
+ .fll_def = 5146,
+ .fll_min = 5146,
+ .llp = 2500,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1296x736_regs),
+ .regs = mode_1296x736_regs,
+ },
+ },
+ {
+ .width = 1280,
+ .height = 720,
+ .fll_def = 5146,
+ .fll_min = 5146,
+ .llp = 2500,
+ .link_freq_index = IMX319_LINK_FREQ_INDEX,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
+ .regs = mode_1280x720_regs,
+ },
+ },
+};
+
+static inline struct imx319 *to_imx319(struct v4l2_subdev *_sd)
+{
+ return container_of(_sd, struct imx319, sd);
+}
+
+/* Get bayer order based on flip setting. */
+static u32 imx319_get_format_code(struct imx319 *imx319)
+{
+ /*
+ * 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(&imx319->mutex);
+ code = codes[imx319->vflip->val][imx319->hflip->val];
+
+ return code;
+}
+
+/* Read registers up to 4 at a time */
+static int imx319_read_reg(struct imx319 *imx319, u16 reg, u32 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->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 imx319_write_reg(struct imx319 *imx319, u16 reg, u32 len, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->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 imx319_write_regs(struct imx319 *imx319,
+ const struct imx319_reg *regs, u32 len)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
+ int ret;
+ u32 i;
+
+ for (i = 0; i < len; i++) {
+ ret = imx319_write_reg(imx319, 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 imx319_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+ struct v4l2_mbus_framefmt *try_fmt =
+ v4l2_subdev_get_try_format(sd, fh->pad, 0);
+
+ mutex_lock(&imx319->mutex);
+
+ /* Initialize try_fmt */
+ try_fmt->width = imx319->cur_mode->width;
+ try_fmt->height = imx319->cur_mode->height;
+ try_fmt->code = imx319_get_format_code(imx319);
+ try_fmt->field = V4L2_FIELD_NONE;
+
+ mutex_unlock(&imx319->mutex);
+
+ return 0;
+}
+
+static int imx319_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct imx319 *imx319 = container_of(ctrl->handler,
+ struct imx319, ctrl_handler);
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->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 = imx319->cur_mode->height + ctrl->val - 18;
+ __v4l2_ctrl_modify_range(imx319->exposure,
+ imx319->exposure->minimum,
+ max, imx319->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 = imx319_write_reg(imx319, IMX319_REG_ANALOG_GAIN, 2,
+ ctrl->val);
+ break;
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = imx319_write_reg(imx319, IMX319_REG_DIG_GAIN_GLOBAL, 2,
+ ctrl->val);
+ break;
+ case V4L2_CID_EXPOSURE:
+ ret = imx319_write_reg(imx319, IMX319_REG_EXPOSURE, 2,
+ ctrl->val);
+ break;
+ case V4L2_CID_VBLANK:
+ /* Update FLL that meets expected vertical blanking */
+ ret = imx319_write_reg(imx319, IMX319_REG_FLL, 2,
+ imx319->cur_mode->height + ctrl->val);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ ret = imx319_write_reg(imx319, IMX319_REG_TEST_PATTERN,
+ 2, ctrl->val);
+ break;
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ ret = imx319_write_reg(imx319, IMX319_REG_ORIENTATION, 1,
+ imx319->hflip->val |
+ imx319->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 imx319_ctrl_ops = {
+ .s_ctrl = imx319_set_ctrl,
+};
+
+static int imx319_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+
+ if (code->index > 0)
+ return -EINVAL;
+
+ mutex_lock(&imx319->mutex);
+ code->code = imx319_get_format_code(imx319);
+ mutex_unlock(&imx319->mutex);
+
+ return 0;
+}
+
+static int imx319_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ mutex_lock(&imx319->mutex);
+ if (fse->code != imx319_get_format_code(imx319)) {
+ mutex_unlock(&imx319->mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(&imx319->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 imx319_update_pad_format(struct imx319 *imx319,
+ const struct imx319_mode *mode,
+ struct v4l2_subdev_format *fmt)
+{
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.code = imx319_get_format_code(imx319);
+ fmt->format.field = V4L2_FIELD_NONE;
+}
+
+static int imx319_do_get_pad_format(struct imx319 *imx319,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *framefmt;
+ struct v4l2_subdev *sd = &imx319->sd;
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+ fmt->format = *framefmt;
+ } else {
+ imx319_update_pad_format(imx319, imx319->cur_mode, fmt);
+ }
+
+ return 0;
+}
+
+static int imx319_get_pad_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+ int ret;
+
+ mutex_lock(&imx319->mutex);
+ ret = imx319_do_get_pad_format(imx319, cfg, fmt);
+ mutex_unlock(&imx319->mutex);
+
+ return ret;
+}
+
+static int
+imx319_set_pad_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+ const struct imx319_mode *mode;
+ struct v4l2_mbus_framefmt *framefmt;
+ s32 vblank_def;
+ s32 vblank_min;
+ s64 h_blank;
+ s64 pixel_rate;
+ u32 height;
+
+ mutex_lock(&imx319->mutex);
+
+ /*
+ * Only one bayer order is supported.
+ * It depends on the flip settings.
+ */
+ fmt->format.code = imx319_get_format_code(imx319);
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes),
+ width, height,
+ fmt->format.width, fmt->format.height);
+ imx319_update_pad_format(imx319, mode, fmt);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+ *framefmt = fmt->format;
+ } else {
+ imx319->cur_mode = mode;
+ pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
+ __v4l2_ctrl_s_ctrl_int64(imx319->pixel_rate, pixel_rate);
+ /* Update limits and set FPS to default */
+ height = imx319->cur_mode->height;
+ vblank_def = imx319->cur_mode->fll_def - height;
+ vblank_min = imx319->cur_mode->fll_min - height;
+ height = IMX319_FLL_MAX - height;
+ __v4l2_ctrl_modify_range(imx319->vblank, vblank_min, height, 1,
+ vblank_def);
+ __v4l2_ctrl_s_ctrl(imx319->vblank, vblank_def);
+ h_blank = mode->llp - imx319->cur_mode->width;
+ /*
+ * Currently hblank is not changeable.
+ * So FPS control is done only by vblank.
+ */
+ __v4l2_ctrl_modify_range(imx319->hblank, h_blank,
+ h_blank, 1, h_blank);
+ }
+
+ mutex_unlock(&imx319->mutex);
+
+ return 0;
+}
+
+/* Start streaming */
+static int imx319_start_streaming(struct imx319 *imx319)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
+ const struct imx319_reg_list *reg_list;
+ int ret;
+
+ /* Global Setting */
+ reg_list = &imx319_global_setting;
+ ret = imx319_write_regs(imx319, 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 = &imx319->cur_mode->reg_list;
+ ret = imx319_write_regs(imx319, 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 = imx319_write_reg(imx319, IMX319_REG_DPGA_USE_GLOBAL_GAIN, 1, 1);
+ if (ret)
+ return ret;
+
+ /* Apply customized values from user */
+ ret = __v4l2_ctrl_handler_setup(imx319->sd.ctrl_handler);
+ if (ret)
+ return ret;
+
+ return imx319_write_reg(imx319, IMX319_REG_MODE_SELECT,
+ 1, IMX319_MODE_STREAMING);
+}
+
+/* Stop streaming */
+static int imx319_stop_streaming(struct imx319 *imx319)
+{
+ return imx319_write_reg(imx319, IMX319_REG_MODE_SELECT,
+ 1, IMX319_MODE_STANDBY);
+}
+
+static int imx319_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct imx319 *imx319 = to_imx319(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = 0;
+
+ mutex_lock(&imx319->mutex);
+ if (imx319->streaming == enable) {
+ mutex_unlock(&imx319->mutex);
+ return 0;
+ }
+
+ if (enable) {
+ ret = pm_runtime_get_sync(&client->dev);
+ if (ret < 0) {
+ pm_runtime_put_noidle(&client->dev);
+ goto err_unlock;
+ }
+
+ /*
+ * Apply default & customized values
+ * and then start streaming.
+ */
+ ret = imx319_start_streaming(imx319);
+ if (ret)
+ goto err_rpm_put;
+ } else {
+ imx319_stop_streaming(imx319);
+ pm_runtime_put(&client->dev);
+ }
+
+ imx319->streaming = enable;
+
+ /* vflip and hflip cannot change during streaming */
+ __v4l2_ctrl_grab(imx319->vflip, enable);
+ __v4l2_ctrl_grab(imx319->hflip, enable);
+
+ mutex_unlock(&imx319->mutex);
+
+ return ret;
+
+err_rpm_put:
+ pm_runtime_put(&client->dev);
+err_unlock:
+ mutex_unlock(&imx319->mutex);
+
+ return ret;
+}
+
+static int __maybe_unused imx319_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct imx319 *imx319 = to_imx319(sd);
+
+ if (imx319->streaming)
+ imx319_stop_streaming(imx319);
+
+ return 0;
+}
+
+static int __maybe_unused imx319_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct imx319 *imx319 = to_imx319(sd);
+ int ret;
+
+ if (imx319->streaming) {
+ ret = imx319_start_streaming(imx319);
+ if (ret)
+ goto error;
+ }
+
+ return 0;
+
+error:
+ imx319_stop_streaming(imx319);
+ imx319->streaming = 0;
+ return ret;
+}
+
+/* Verify chip ID */
+static int imx319_identify_module(struct imx319 *imx319)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
+ int ret;
+ u32 val;
+
+ ret = imx319_read_reg(imx319, IMX319_REG_CHIP_ID, 2, &val);
+ if (ret)
+ return ret;
+
+ if (val != IMX319_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x",
+ IMX319_CHIP_ID, val);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_subdev_core_ops imx319_subdev_core_ops = {
+ .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static const struct v4l2_subdev_video_ops imx319_video_ops = {
+ .s_stream = imx319_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops imx319_pad_ops = {
+ .enum_mbus_code = imx319_enum_mbus_code,
+ .get_fmt = imx319_get_pad_format,
+ .set_fmt = imx319_set_pad_format,
+ .enum_frame_size = imx319_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops imx319_subdev_ops = {
+ .core = &imx319_subdev_core_ops,
+ .video = &imx319_video_ops,
+ .pad = &imx319_pad_ops,
+};
+
+static const struct media_entity_operations imx319_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops imx319_internal_ops = {
+ .open = imx319_open,
+};
+
+/* Initialize control handlers */
+static int imx319_init_controls(struct imx319 *imx319)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ s64 exposure_max;
+ s64 vblank_def;
+ s64 vblank_min;
+ s64 hblank;
+ s64 pixel_rate;
+ const struct imx319_mode *mode;
+ u32 max;
+ int ret;
+
+ ctrl_hdlr = &imx319->ctrl_handler;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
+ if (ret)
+ return ret;
+
+ ctrl_hdlr->lock = &imx319->mutex;
+ max = ARRAY_SIZE(link_freq_menu_items) - 1;
+ imx319->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_LINK_FREQ, max, 0,
+ link_freq_menu_items);
+ if (imx319->link_freq)
+ imx319->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
+ pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
+ /* By default, PIXEL_RATE is read only */
+ imx319->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, pixel_rate,
+ pixel_rate, 1, pixel_rate);
+
+ /* Initial vblank/hblank/exposure parameters based on current mode */
+ mode = imx319->cur_mode;
+ vblank_def = mode->fll_def - mode->height;
+ vblank_min = mode->fll_min - mode->height;
+ imx319->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_VBLANK, vblank_min,
+ IMX319_FLL_MAX - mode->height,
+ 1, vblank_def);
+
+ hblank = mode->llp - mode->width;
+ imx319->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_HBLANK, hblank, hblank,
+ 1, hblank);
+ if (imx319->hblank)
+ imx319->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ /* fll >= exposure time + adjust parameter (default value is 18) */
+ exposure_max = mode->fll_def - 18;
+ imx319->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ IMX319_EXPOSURE_MIN, exposure_max,
+ IMX319_EXPOSURE_STEP,
+ IMX319_EXPOSURE_DEFAULT);
+
+ imx319->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ imx319->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+ IMX319_ANA_GAIN_MIN, IMX319_ANA_GAIN_MAX,
+ IMX319_ANA_GAIN_STEP, IMX319_ANA_GAIN_DEFAULT);
+
+ /* Digital gain */
+ v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+ IMX319_DGTL_GAIN_MIN, IMX319_DGTL_GAIN_MAX,
+ IMX319_DGTL_GAIN_STEP, IMX319_DGTL_GAIN_DEFAULT);
+
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx319_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(imx319_test_pattern_menu) - 1,
+ 0, 0, imx319_test_pattern_menu);
+ if (ctrl_hdlr->error) {
+ ret = ctrl_hdlr->error;
+ dev_err(&client->dev, "control init failed: %d", ret);
+ goto error;
+ }
+
+ imx319->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+
+error:
+ v4l2_ctrl_handler_free(ctrl_hdlr);
+
+ return ret;
+}
+
+static struct imx319_hwcfg *imx319_get_hwcfg(struct device *dev)
+{
+ struct imx319_hwcfg *cfg;
+ struct v4l2_fwnode_endpoint *bus_cfg;
+ 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;
+
+ bus_cfg = v4l2_fwnode_endpoint_alloc_parse(ep);
+ if (IS_ERR(bus_cfg))
+ 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 != IMX319_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 imx319_probe(struct i2c_client *client)
+{
+ struct imx319 *imx319;
+ int ret;
+ u32 i;
+
+ imx319 = devm_kzalloc(&client->dev, sizeof(*imx319), GFP_KERNEL);
+ if (!imx319)
+ return -ENOMEM;
+
+ mutex_init(&imx319->mutex);
+
+ /* Initialize subdev */
+ v4l2_i2c_subdev_init(&imx319->sd, client, &imx319_subdev_ops);
+
+ /* Check module identity */
+ ret = imx319_identify_module(imx319);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d", ret);
+ goto error_probe;
+ }
+
+ imx319->hwcfg = imx319_get_hwcfg(&client->dev);
+ if (!imx319->hwcfg) {
+ dev_err(&client->dev, "failed to get hwcfg");
+ ret = -ENODEV;
+ goto error_probe;
+ }
+
+ imx319->link_def_freq = link_freq_menu_items[IMX319_LINK_FREQ_INDEX];
+ for (i = 0; i < imx319->hwcfg->nr_of_link_freqs; i++) {
+ if (imx319->hwcfg->link_freqs[i] == imx319->link_def_freq) {
+ dev_dbg(&client->dev, "link freq index %d matched", i);
+ break;
+ }
+ }
+
+ if (i == imx319->hwcfg->nr_of_link_freqs) {
+ dev_err(&client->dev, "no link frequency supported");
+ ret = -EINVAL;
+ goto error_probe;
+ }
+
+ /* Set default mode to max resolution */
+ imx319->cur_mode = &supported_modes[0];
+
+ ret = imx319_init_controls(imx319);
+ if (ret) {
+ dev_err(&client->dev, "failed to init controls: %d", ret);
+ goto error_probe;
+ }
+
+ /* Initialize subdev */
+ imx319->sd.internal_ops = &imx319_internal_ops;
+ imx319->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+ V4L2_SUBDEV_FL_HAS_EVENTS;
+ imx319->sd.entity.ops = &imx319_subdev_entity_ops;
+ imx319->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+ /* Initialize source pad */
+ imx319->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&imx319->sd.entity, 1, &imx319->pad);
+ if (ret) {
+ dev_err(&client->dev, "failed to init entity pads: %d", ret);
+ goto error_handler_free;
+ }
+
+ ret = v4l2_async_register_subdev_sensor_common(&imx319->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(&imx319->sd.entity);
+
+error_handler_free:
+ v4l2_ctrl_handler_free(imx319->sd.ctrl_handler);
+
+error_probe:
+ mutex_destroy(&imx319->mutex);
+
+ return ret;
+}
+
+static int imx319_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct imx319 *imx319 = to_imx319(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(&imx319->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops imx319_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(imx319_suspend, imx319_resume)
+};
+
+static const struct acpi_device_id imx319_acpi_ids[] = {
+ { "SONY319A" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(acpi, imx319_acpi_ids);
+
+static struct i2c_driver imx319_i2c_driver = {
+ .driver = {
+ .name = "imx319",
+ .pm = &imx319_pm_ops,
+ .acpi_match_table = ACPI_PTR(imx319_acpi_ids),
+ },
+ .probe_new = imx319_probe,
+ .remove = imx319_remove,
+};
+module_i2c_driver(imx319_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 <hyungwoo.yang@intel.com>");
+MODULE_DESCRIPTION("Sony imx319 sensor driver");
+MODULE_LICENSE("GPL v2");
--
1.9.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-09-26 2:42 [PATCH v7] media: add imx319 camera sensor driver bingbu.cao
@ 2018-09-26 7:57 ` Sakari Ailus
2018-09-26 8:08 ` Bing Bu Cao
2018-10-12 4:51 ` Tomasz Figa
1 sibling, 1 reply; 10+ messages in thread
From: Sakari Ailus @ 2018-09-26 7:57 UTC (permalink / raw)
To: bingbu.cao
Cc: linux-media, tfiga, rajmohan.mani, bingbu.cao, tian.shu.qiu,
jian.xu.zheng, chiranjeevi.rapolu
Hi Bingbu,
On Wed, Sep 26, 2018 at 10:42:18AM +0800, bingbu.cao@intel.com wrote:
> From: Bingbu Cao <bingbu.cao@intel.com>
>
> Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> This is a camera sensor using the i2c bus for control and the
> csi-2 bus for data.
>
> This driver supports following features:
> - manual exposure and analog/digital gain control support
> - vblank/hblank control support
> - 4 test patterns control support
> - vflip/hflip control support (will impact the output bayer order)
> - support following resolutions:
> - 3264x2448, 3280x2464 @ 30fps
> - 1936x1096, 1920x1080 @ 60fps
> - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> - support 4 bayer orders output (via change v/hflip)
> - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
>
> Cc: Tomasz Figa <tfiga@chromium.org>
> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
>
> ---
>
> This patch is based on sakari's media-tree git:
> https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
>
> Changes from v5:
> - add some comments for gain calculation
> - use lock to protect the format
> - fix some style issues
Thanks for the update!
I've applied the patch with the following diff. Dividing a 64-bit number
generally requires do_div() which was missed in the review:
diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
index e10d60f500dd..37c31d17ecf0 100644
--- a/drivers/media/i2c/imx319.c
+++ b/drivers/media/i2c/imx319.c
@@ -2038,7 +2038,7 @@ imx319_set_pad_format(struct v4l2_subdev *sd,
s32 vblank_def;
s32 vblank_min;
s64 h_blank;
- s64 pixel_rate;
+ u64 pixel_rate;
u32 height;
mutex_lock(&imx319->mutex);
@@ -2059,7 +2059,8 @@ imx319_set_pad_format(struct v4l2_subdev *sd,
*framefmt = fmt->format;
} else {
imx319->cur_mode = mode;
- pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
+ pixel_rate = imx319->link_def_freq * 2 * 4;
+ do_div(pixel_rate, 10);
__v4l2_ctrl_s_ctrl_int64(imx319->pixel_rate, pixel_rate);
/* Update limits and set FPS to default */
height = imx319->cur_mode->height;
@@ -2268,7 +2269,7 @@ static int imx319_init_controls(struct imx319 *imx319)
s64 vblank_def;
s64 vblank_min;
s64 hblank;
- s64 pixel_rate;
+ u64 pixel_rate;
const struct imx319_mode *mode;
u32 max;
int ret;
@@ -2287,7 +2288,8 @@ static int imx319_init_controls(struct imx319 *imx319)
imx319->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
- pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
+ pixel_rate = imx319->link_def_freq * 2 * 4;
+ do_div(pixel_rate, 10);
/* By default, PIXEL_RATE is read only */
imx319->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
V4L2_CID_PIXEL_RATE, pixel_rate,
--
Kind regards,
Sakari Ailus
sakari.ailus@linux.intel.com
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-09-26 7:57 ` Sakari Ailus
@ 2018-09-26 8:08 ` Bing Bu Cao
0 siblings, 0 replies; 10+ messages in thread
From: Bing Bu Cao @ 2018-09-26 8:08 UTC (permalink / raw)
To: Sakari Ailus, bingbu.cao
Cc: linux-media, tfiga, rajmohan.mani, tian.shu.qiu, jian.xu.zheng,
chiranjeevi.rapolu
On 09/26/2018 03:57 PM, Sakari Ailus wrote:
> Hi Bingbu,
>
> On Wed, Sep 26, 2018 at 10:42:18AM +0800, bingbu.cao@intel.com wrote:
>> From: Bingbu Cao <bingbu.cao@intel.com>
>>
>> Add a v4l2 sub-device driver for the Sony imx319 image sensor.
>> This is a camera sensor using the i2c bus for control and the
>> csi-2 bus for data.
>>
>> This driver supports following features:
>> - manual exposure and analog/digital gain control support
>> - vblank/hblank control support
>> - 4 test patterns control support
>> - vflip/hflip control support (will impact the output bayer order)
>> - support following resolutions:
>> - 3264x2448, 3280x2464 @ 30fps
>> - 1936x1096, 1920x1080 @ 60fps
>> - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
>> - support 4 bayer orders output (via change v/hflip)
>> - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
>>
>> Cc: Tomasz Figa <tfiga@chromium.org>
>> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
>> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
>> Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
>>
>> ---
>>
>> This patch is based on sakari's media-tree git:
>> https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
>>
>> Changes from v5:
>> - add some comments for gain calculation
>> - use lock to protect the format
>> - fix some style issues
> Thanks for the update!
>
> I've applied the patch with the following diff. Dividing a 64-bit number
> generally requires do_div() which was missed in the review:
Thanks!
>
> diff --git a/drivers/media/i2c/imx319.c b/drivers/media/i2c/imx319.c
> index e10d60f500dd..37c31d17ecf0 100644
> --- a/drivers/media/i2c/imx319.c
> +++ b/drivers/media/i2c/imx319.c
> @@ -2038,7 +2038,7 @@ imx319_set_pad_format(struct v4l2_subdev *sd,
> s32 vblank_def;
> s32 vblank_min;
> s64 h_blank;
> - s64 pixel_rate;
> + u64 pixel_rate;
> u32 height;
>
> mutex_lock(&imx319->mutex);
> @@ -2059,7 +2059,8 @@ imx319_set_pad_format(struct v4l2_subdev *sd,
> *framefmt = fmt->format;
> } else {
> imx319->cur_mode = mode;
> - pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
> + pixel_rate = imx319->link_def_freq * 2 * 4;
> + do_div(pixel_rate, 10);
> __v4l2_ctrl_s_ctrl_int64(imx319->pixel_rate, pixel_rate);
> /* Update limits and set FPS to default */
> height = imx319->cur_mode->height;
> @@ -2268,7 +2269,7 @@ static int imx319_init_controls(struct imx319 *imx319)
> s64 vblank_def;
> s64 vblank_min;
> s64 hblank;
> - s64 pixel_rate;
> + u64 pixel_rate;
> const struct imx319_mode *mode;
> u32 max;
> int ret;
> @@ -2287,7 +2288,8 @@ static int imx319_init_controls(struct imx319 *imx319)
> imx319->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
>
> /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
> - pixel_rate = (imx319->link_def_freq * 2 * 4) / 10;
> + pixel_rate = imx319->link_def_freq * 2 * 4;
> + do_div(pixel_rate, 10);
> /* By default, PIXEL_RATE is read only */
> imx319->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
> V4L2_CID_PIXEL_RATE, pixel_rate,
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-09-26 2:42 [PATCH v7] media: add imx319 camera sensor driver bingbu.cao
2018-09-26 7:57 ` Sakari Ailus
@ 2018-10-12 4:51 ` Tomasz Figa
2018-10-12 7:58 ` Sakari Ailus
1 sibling, 1 reply; 10+ messages in thread
From: Tomasz Figa @ 2018-10-12 4:51 UTC (permalink / raw)
To: Sakari Ailus
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
Hi Sakari,
On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
>
> From: Bingbu Cao <bingbu.cao@intel.com>
>
> Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> This is a camera sensor using the i2c bus for control and the
> csi-2 bus for data.
>
> This driver supports following features:
> - manual exposure and analog/digital gain control support
> - vblank/hblank control support
> - 4 test patterns control support
> - vflip/hflip control support (will impact the output bayer order)
> - support following resolutions:
> - 3264x2448, 3280x2464 @ 30fps
> - 1936x1096, 1920x1080 @ 60fps
> - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> - support 4 bayer orders output (via change v/hflip)
> - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
>
> Cc: Tomasz Figa <tfiga@chromium.org>
> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
>
> ---
>
> This patch is based on sakari's media-tree git:
> https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
>
> Changes from v5:
> - add some comments for gain calculation
> - use lock to protect the format
> - fix some style issues
>
> Changes from v4 to v5:
> - use single PLL for all internal clocks
> - change link frequency to 482.4MHz
> - adjust frame timing for 2x2 binning modes
> and enlarge frame readout time
> - get CSI-2 link frequencies and external clock
> from firmware
If I remember correctly, that was suggested by you. Why do we need to
specify link frequency in firmware if it's fully configured by the
driver, with the only external dependency being the external clock?
We're having problems with firmware listing the link frequency from v4
and we can't easily change it anymore to report the new one. I feel
like this dependency on the firmware here is unnecessary, as long as
the external clock frequency matches.
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-12 4:51 ` Tomasz Figa
@ 2018-10-12 7:58 ` Sakari Ailus
2018-10-12 8:06 ` Tomasz Figa
0 siblings, 1 reply; 10+ messages in thread
From: Sakari Ailus @ 2018-10-12 7:58 UTC (permalink / raw)
To: Tomasz Figa
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
Hi Tomasz,
On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> Hi Sakari,
>
> On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> >
> > From: Bingbu Cao <bingbu.cao@intel.com>
> >
> > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > This is a camera sensor using the i2c bus for control and the
> > csi-2 bus for data.
> >
> > This driver supports following features:
> > - manual exposure and analog/digital gain control support
> > - vblank/hblank control support
> > - 4 test patterns control support
> > - vflip/hflip control support (will impact the output bayer order)
> > - support following resolutions:
> > - 3264x2448, 3280x2464 @ 30fps
> > - 1936x1096, 1920x1080 @ 60fps
> > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > - support 4 bayer orders output (via change v/hflip)
> > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> >
> > Cc: Tomasz Figa <tfiga@chromium.org>
> > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> >
> > ---
> >
> > This patch is based on sakari's media-tree git:
> > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> >
> > Changes from v5:
> > - add some comments for gain calculation
> > - use lock to protect the format
> > - fix some style issues
> >
> > Changes from v4 to v5:
> > - use single PLL for all internal clocks
> > - change link frequency to 482.4MHz
> > - adjust frame timing for 2x2 binning modes
> > and enlarge frame readout time
> > - get CSI-2 link frequencies and external clock
> > from firmware
>
> If I remember correctly, that was suggested by you. Why do we need to
> specify link frequency in firmware if it's fully configured by the
> driver, with the only external dependency being the external clock?
The driver that's now in upstream supports, for now, a very limited set of
configurations from what the sensor supports. These are more or less
tailored to the particular system where it is being used right now (output
image size, external clock frequency, frame rates, link frequencies etc.).
If the same sensor is needed elsewhere (quite likely), the configuration
needed elsewhere is very likely to be different from what you're using now.
The link frequency in particular is important as using a different link
frequency (which could be fine elsewhere) could cause EMI issues, e.g.
rendering your GPS receiver inoperable during the time the camera sensor is
streaming images.
Should new configurations be added to this driver to support a different
system, the link frequencies used by those configurations may be
problematic to your system, and after a software update the driver could as
well use those new frequencies. That's a big no-no.
>
> We're having problems with firmware listing the link frequency from v4
> and we can't easily change it anymore to report the new one. I feel
> like this dependency on the firmware here is unnecessary, as long as
> the external clock frequency matches.
This is information you really need to know.
A number of older drivers do not use the link frequency information from
the firmware but that comes with a risk. Really, it's better to change the
frequency now to something you can choose, rather than have it changed
later on to something someone else chose for you.
--
Kind regards,
Sakari Ailus
sakari.ailus@linux.intel.com
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-12 7:58 ` Sakari Ailus
@ 2018-10-12 8:06 ` Tomasz Figa
2018-10-16 11:50 ` Sakari Ailus
0 siblings, 1 reply; 10+ messages in thread
From: Tomasz Figa @ 2018-10-12 8:06 UTC (permalink / raw)
To: Sakari Ailus
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
On Fri, Oct 12, 2018 at 4:58 PM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Tomasz,
>
> On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> > Hi Sakari,
> >
> > On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> > >
> > > From: Bingbu Cao <bingbu.cao@intel.com>
> > >
> > > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > > This is a camera sensor using the i2c bus for control and the
> > > csi-2 bus for data.
> > >
> > > This driver supports following features:
> > > - manual exposure and analog/digital gain control support
> > > - vblank/hblank control support
> > > - 4 test patterns control support
> > > - vflip/hflip control support (will impact the output bayer order)
> > > - support following resolutions:
> > > - 3264x2448, 3280x2464 @ 30fps
> > > - 1936x1096, 1920x1080 @ 60fps
> > > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > > - support 4 bayer orders output (via change v/hflip)
> > > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> > >
> > > Cc: Tomasz Figa <tfiga@chromium.org>
> > > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> > >
> > > ---
> > >
> > > This patch is based on sakari's media-tree git:
> > > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> > >
> > > Changes from v5:
> > > - add some comments for gain calculation
> > > - use lock to protect the format
> > > - fix some style issues
> > >
> > > Changes from v4 to v5:
> > > - use single PLL for all internal clocks
> > > - change link frequency to 482.4MHz
> > > - adjust frame timing for 2x2 binning modes
> > > and enlarge frame readout time
> > > - get CSI-2 link frequencies and external clock
> > > from firmware
> >
> > If I remember correctly, that was suggested by you. Why do we need to
> > specify link frequency in firmware if it's fully configured by the
> > driver, with the only external dependency being the external clock?
>
> The driver that's now in upstream supports, for now, a very limited set of
> configurations from what the sensor supports. These are more or less
> tailored to the particular system where it is being used right now (output
> image size, external clock frequency, frame rates, link frequencies etc.).
As a side note, they're tailored to exactly the system I mentioned,
with different link frequency hardcoded in the firmware, coming from
earlier stage of development.
> If the same sensor is needed elsewhere (quite likely), the configuration
> needed elsewhere is very likely to be different from what you're using now.
>
> The link frequency in particular is important as using a different link
> frequency (which could be fine elsewhere) could cause EMI issues, e.g.
> rendering your GPS receiver inoperable during the time the camera sensor is
> streaming images.
>
> Should new configurations be added to this driver to support a different
> system, the link frequencies used by those configurations may be
> problematic to your system, and after a software update the driver could as
> well use those new frequencies. That's a big no-no.
>
Okay, those are some valid points indeed, thanks for clarifying.
> >
> > We're having problems with firmware listing the link frequency from v4
> > and we can't easily change it anymore to report the new one. I feel
> > like this dependency on the firmware here is unnecessary, as long as
> > the external clock frequency matches.
>
> This is information you really need to know.
>
> A number of older drivers do not use the link frequency information from
> the firmware but that comes with a risk. Really, it's better to change the
> frequency now to something you can choose, rather than have it changed
> later on to something someone else chose for you.
I guess it means that we have to carry a local downstream patch that
bypasses this check, since we cannot easily change the firmware
anymore.
An alternative would be to make the driver try to select a frequency
that matches what's in the firmware, but issue a warning and fall back
to a default one if a matching is not found. It might be actually
better than nothing for some early testing on new systems, since it
wouldn't require firmware changes.
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-12 8:06 ` Tomasz Figa
@ 2018-10-16 11:50 ` Sakari Ailus
2018-10-18 3:24 ` Tomasz Figa
0 siblings, 1 reply; 10+ messages in thread
From: Sakari Ailus @ 2018-10-16 11:50 UTC (permalink / raw)
To: Tomasz Figa
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
Hi Tomasz,
On Fri, Oct 12, 2018 at 05:06:56PM +0900, Tomasz Figa wrote:
> On Fri, Oct 12, 2018 at 4:58 PM Sakari Ailus
> <sakari.ailus@linux.intel.com> wrote:
> >
> > Hi Tomasz,
> >
> > On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> > > Hi Sakari,
> > >
> > > On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> > > >
> > > > From: Bingbu Cao <bingbu.cao@intel.com>
> > > >
> > > > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > > > This is a camera sensor using the i2c bus for control and the
> > > > csi-2 bus for data.
> > > >
> > > > This driver supports following features:
> > > > - manual exposure and analog/digital gain control support
> > > > - vblank/hblank control support
> > > > - 4 test patterns control support
> > > > - vflip/hflip control support (will impact the output bayer order)
> > > > - support following resolutions:
> > > > - 3264x2448, 3280x2464 @ 30fps
> > > > - 1936x1096, 1920x1080 @ 60fps
> > > > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > > > - support 4 bayer orders output (via change v/hflip)
> > > > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> > > >
> > > > Cc: Tomasz Figa <tfiga@chromium.org>
> > > > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > > > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> > > >
> > > > ---
> > > >
> > > > This patch is based on sakari's media-tree git:
> > > > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> > > >
> > > > Changes from v5:
> > > > - add some comments for gain calculation
> > > > - use lock to protect the format
> > > > - fix some style issues
> > > >
> > > > Changes from v4 to v5:
> > > > - use single PLL for all internal clocks
> > > > - change link frequency to 482.4MHz
> > > > - adjust frame timing for 2x2 binning modes
> > > > and enlarge frame readout time
> > > > - get CSI-2 link frequencies and external clock
> > > > from firmware
> > >
> > > If I remember correctly, that was suggested by you. Why do we need to
> > > specify link frequency in firmware if it's fully configured by the
> > > driver, with the only external dependency being the external clock?
> >
> > The driver that's now in upstream supports, for now, a very limited set of
> > configurations from what the sensor supports. These are more or less
> > tailored to the particular system where it is being used right now (output
> > image size, external clock frequency, frame rates, link frequencies etc.).
>
> As a side note, they're tailored to exactly the system I mentioned,
> with different link frequency hardcoded in the firmware, coming from
> earlier stage of development.
>
> > If the same sensor is needed elsewhere (quite likely), the configuration
> > needed elsewhere is very likely to be different from what you're using now.
> >
> > The link frequency in particular is important as using a different link
> > frequency (which could be fine elsewhere) could cause EMI issues, e.g.
> > rendering your GPS receiver inoperable during the time the camera sensor is
> > streaming images.
> >
> > Should new configurations be added to this driver to support a different
> > system, the link frequencies used by those configurations may be
> > problematic to your system, and after a software update the driver could as
> > well use those new frequencies. That's a big no-no.
> >
>
> Okay, those are some valid points indeed, thanks for clarifying.
>
> > >
> > > We're having problems with firmware listing the link frequency from v4
> > > and we can't easily change it anymore to report the new one. I feel
> > > like this dependency on the firmware here is unnecessary, as long as
> > > the external clock frequency matches.
> >
> > This is information you really need to know.
> >
> > A number of older drivers do not use the link frequency information from
> > the firmware but that comes with a risk. Really, it's better to change the
> > frequency now to something you can choose, rather than have it changed
> > later on to something someone else chose for you.
>
> I guess it means that we have to carry a local downstream patch that
> bypasses this check, since we cannot easily change the firmware
> anymore.
Is there a possibility update the firmware, or carry an SSDT overlay as part
of the software? The options are laid out in
Documentation/acpi/ssdt-overlays.txt . Do remember to pay attention to the
revision field --- also in future Coreboot updates.
>
> An alternative would be to make the driver try to select a frequency
> that matches what's in the firmware, but issue a warning and fall back
> to a default one if a matching is not found. It might be actually
> better than nothing for some early testing on new systems, since it
> wouldn't require firmware changes.
You don't need firmware changes per se; see above. Allowing that will very,
very easily lead this being unaddressed during developement and changing
later on inadvertly.
--
Kind regards,
Sakari Ailus
sakari.ailus@linux.intel.com
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-16 11:50 ` Sakari Ailus
@ 2018-10-18 3:24 ` Tomasz Figa
2018-10-20 21:52 ` Sakari Ailus
0 siblings, 1 reply; 10+ messages in thread
From: Tomasz Figa @ 2018-10-18 3:24 UTC (permalink / raw)
To: Sakari Ailus
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
On Tue, Oct 16, 2018 at 8:50 PM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Tomasz,
>
> On Fri, Oct 12, 2018 at 05:06:56PM +0900, Tomasz Figa wrote:
> > On Fri, Oct 12, 2018 at 4:58 PM Sakari Ailus
> > <sakari.ailus@linux.intel.com> wrote:
> > >
> > > Hi Tomasz,
> > >
> > > On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> > > > Hi Sakari,
> > > >
> > > > On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> > > > >
> > > > > From: Bingbu Cao <bingbu.cao@intel.com>
> > > > >
> > > > > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > > > > This is a camera sensor using the i2c bus for control and the
> > > > > csi-2 bus for data.
> > > > >
> > > > > This driver supports following features:
> > > > > - manual exposure and analog/digital gain control support
> > > > > - vblank/hblank control support
> > > > > - 4 test patterns control support
> > > > > - vflip/hflip control support (will impact the output bayer order)
> > > > > - support following resolutions:
> > > > > - 3264x2448, 3280x2464 @ 30fps
> > > > > - 1936x1096, 1920x1080 @ 60fps
> > > > > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > > > > - support 4 bayer orders output (via change v/hflip)
> > > > > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> > > > >
> > > > > Cc: Tomasz Figa <tfiga@chromium.org>
> > > > > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > > > > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> > > > >
> > > > > ---
> > > > >
> > > > > This patch is based on sakari's media-tree git:
> > > > > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> > > > >
> > > > > Changes from v5:
> > > > > - add some comments for gain calculation
> > > > > - use lock to protect the format
> > > > > - fix some style issues
> > > > >
> > > > > Changes from v4 to v5:
> > > > > - use single PLL for all internal clocks
> > > > > - change link frequency to 482.4MHz
> > > > > - adjust frame timing for 2x2 binning modes
> > > > > and enlarge frame readout time
> > > > > - get CSI-2 link frequencies and external clock
> > > > > from firmware
> > > >
> > > > If I remember correctly, that was suggested by you. Why do we need to
> > > > specify link frequency in firmware if it's fully configured by the
> > > > driver, with the only external dependency being the external clock?
> > >
> > > The driver that's now in upstream supports, for now, a very limited set of
> > > configurations from what the sensor supports. These are more or less
> > > tailored to the particular system where it is being used right now (output
> > > image size, external clock frequency, frame rates, link frequencies etc.).
> >
> > As a side note, they're tailored to exactly the system I mentioned,
> > with different link frequency hardcoded in the firmware, coming from
> > earlier stage of development.
> >
> > > If the same sensor is needed elsewhere (quite likely), the configuration
> > > needed elsewhere is very likely to be different from what you're using now.
> > >
> > > The link frequency in particular is important as using a different link
> > > frequency (which could be fine elsewhere) could cause EMI issues, e.g.
> > > rendering your GPS receiver inoperable during the time the camera sensor is
> > > streaming images.
> > >
> > > Should new configurations be added to this driver to support a different
> > > system, the link frequencies used by those configurations may be
> > > problematic to your system, and after a software update the driver could as
> > > well use those new frequencies. That's a big no-no.
> > >
> >
> > Okay, those are some valid points indeed, thanks for clarifying.
> >
> > > >
> > > > We're having problems with firmware listing the link frequency from v4
> > > > and we can't easily change it anymore to report the new one. I feel
> > > > like this dependency on the firmware here is unnecessary, as long as
> > > > the external clock frequency matches.
> > >
> > > This is information you really need to know.
> > >
> > > A number of older drivers do not use the link frequency information from
> > > the firmware but that comes with a risk. Really, it's better to change the
> > > frequency now to something you can choose, rather than have it changed
> > > later on to something someone else chose for you.
> >
> > I guess it means that we have to carry a local downstream patch that
> > bypasses this check, since we cannot easily change the firmware
> > anymore.
>
> Is there a possibility update the firmware, or carry an SSDT overlay as part
> of the software? The options are laid out in
> Documentation/acpi/ssdt-overlays.txt . Do remember to pay attention to the
> revision field --- also in future Coreboot updates.
>
Generally we try to avoid updating the firmware in the field, but most
of the time there is a reason to do it anyway, so that might
eventually happen. Let me try to figure out.
> >
> > An alternative would be to make the driver try to select a frequency
> > that matches what's in the firmware, but issue a warning and fall back
> > to a default one if a matching is not found. It might be actually
> > better than nothing for some early testing on new systems, since it
> > wouldn't require firmware changes.
>
> You don't need firmware changes per se; see above. Allowing that will very,
> very easily lead this being unaddressed during developement and changing
> later on inadvertly.
Still, requiring the user to create an SSDT overlay sounds like an
overkill, for something that is not really a fatal error. We handle
ACPI firmware bugs in many parts of the kernel by issuing a warning
and using some reasonably safe fallback and I don't know why we
couldn't do the same here.
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-18 3:24 ` Tomasz Figa
@ 2018-10-20 21:52 ` Sakari Ailus
2018-10-21 5:29 ` Tomasz Figa
0 siblings, 1 reply; 10+ messages in thread
From: Sakari Ailus @ 2018-10-20 21:52 UTC (permalink / raw)
To: Tomasz Figa
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
Hi Tomasz,
On Thu, Oct 18, 2018 at 12:24:31PM +0900, Tomasz Figa wrote:
> On Tue, Oct 16, 2018 at 8:50 PM Sakari Ailus
> <sakari.ailus@linux.intel.com> wrote:
> >
> > Hi Tomasz,
> >
> > On Fri, Oct 12, 2018 at 05:06:56PM +0900, Tomasz Figa wrote:
> > > On Fri, Oct 12, 2018 at 4:58 PM Sakari Ailus
> > > <sakari.ailus@linux.intel.com> wrote:
> > > >
> > > > Hi Tomasz,
> > > >
> > > > On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> > > > > Hi Sakari,
> > > > >
> > > > > On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> > > > > >
> > > > > > From: Bingbu Cao <bingbu.cao@intel.com>
> > > > > >
> > > > > > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > > > > > This is a camera sensor using the i2c bus for control and the
> > > > > > csi-2 bus for data.
> > > > > >
> > > > > > This driver supports following features:
> > > > > > - manual exposure and analog/digital gain control support
> > > > > > - vblank/hblank control support
> > > > > > - 4 test patterns control support
> > > > > > - vflip/hflip control support (will impact the output bayer order)
> > > > > > - support following resolutions:
> > > > > > - 3264x2448, 3280x2464 @ 30fps
> > > > > > - 1936x1096, 1920x1080 @ 60fps
> > > > > > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > > > > > - support 4 bayer orders output (via change v/hflip)
> > > > > > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> > > > > >
> > > > > > Cc: Tomasz Figa <tfiga@chromium.org>
> > > > > > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > > > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > > > > > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> > > > > >
> > > > > > ---
> > > > > >
> > > > > > This patch is based on sakari's media-tree git:
> > > > > > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> > > > > >
> > > > > > Changes from v5:
> > > > > > - add some comments for gain calculation
> > > > > > - use lock to protect the format
> > > > > > - fix some style issues
> > > > > >
> > > > > > Changes from v4 to v5:
> > > > > > - use single PLL for all internal clocks
> > > > > > - change link frequency to 482.4MHz
> > > > > > - adjust frame timing for 2x2 binning modes
> > > > > > and enlarge frame readout time
> > > > > > - get CSI-2 link frequencies and external clock
> > > > > > from firmware
> > > > >
> > > > > If I remember correctly, that was suggested by you. Why do we need to
> > > > > specify link frequency in firmware if it's fully configured by the
> > > > > driver, with the only external dependency being the external clock?
> > > >
> > > > The driver that's now in upstream supports, for now, a very limited set of
> > > > configurations from what the sensor supports. These are more or less
> > > > tailored to the particular system where it is being used right now (output
> > > > image size, external clock frequency, frame rates, link frequencies etc.).
> > >
> > > As a side note, they're tailored to exactly the system I mentioned,
> > > with different link frequency hardcoded in the firmware, coming from
> > > earlier stage of development.
> > >
> > > > If the same sensor is needed elsewhere (quite likely), the configuration
> > > > needed elsewhere is very likely to be different from what you're using now.
> > > >
> > > > The link frequency in particular is important as using a different link
> > > > frequency (which could be fine elsewhere) could cause EMI issues, e.g.
> > > > rendering your GPS receiver inoperable during the time the camera sensor is
> > > > streaming images.
> > > >
> > > > Should new configurations be added to this driver to support a different
> > > > system, the link frequencies used by those configurations may be
> > > > problematic to your system, and after a software update the driver could as
> > > > well use those new frequencies. That's a big no-no.
> > > >
> > >
> > > Okay, those are some valid points indeed, thanks for clarifying.
> > >
> > > > >
> > > > > We're having problems with firmware listing the link frequency from v4
> > > > > and we can't easily change it anymore to report the new one. I feel
> > > > > like this dependency on the firmware here is unnecessary, as long as
> > > > > the external clock frequency matches.
> > > >
> > > > This is information you really need to know.
> > > >
> > > > A number of older drivers do not use the link frequency information from
> > > > the firmware but that comes with a risk. Really, it's better to change the
> > > > frequency now to something you can choose, rather than have it changed
> > > > later on to something someone else chose for you.
> > >
> > > I guess it means that we have to carry a local downstream patch that
> > > bypasses this check, since we cannot easily change the firmware
> > > anymore.
> >
> > Is there a possibility update the firmware, or carry an SSDT overlay as part
> > of the software? The options are laid out in
> > Documentation/acpi/ssdt-overlays.txt . Do remember to pay attention to the
> > revision field --- also in future Coreboot updates.
> >
>
> Generally we try to avoid updating the firmware in the field, but most
> of the time there is a reason to do it anyway, so that might
> eventually happen. Let me try to figure out.
>
> > >
> > > An alternative would be to make the driver try to select a frequency
> > > that matches what's in the firmware, but issue a warning and fall back
> > > to a default one if a matching is not found. It might be actually
> > > better than nothing for some early testing on new systems, since it
> > > wouldn't require firmware changes.
> >
> > You don't need firmware changes per se; see above. Allowing that will very,
> > very easily lead this being unaddressed during developement and changing
> > later on inadvertly.
>
> Still, requiring the user to create an SSDT overlay sounds like an
> overkill, for something that is not really a fatal error. We handle
> ACPI firmware bugs in many parts of the kernel by issuing a warning
> and using some reasonably safe fallback and I don't know why we
> couldn't do the same here.
To address this in kernel only, I presume one would have to plant that
snippet in the ACPI table based on recognising the machine name and the
firmware version. I don't think this is supported right now.
OTOH, an alternative option could be, if you use initrd for other reasons,
to bake the SSDT overlay into the initrd based on the machine
identification when creating the initrd image. That would require no kernel
changes and compared to making kernel changes, this way also there would be
no adverse effect on the size of the kernel.
--
Regards,
Sakari Ailus
sakari.ailus@linux.intel.com
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v7] media: add imx319 camera sensor driver
2018-10-20 21:52 ` Sakari Ailus
@ 2018-10-21 5:29 ` Tomasz Figa
0 siblings, 0 replies; 10+ messages in thread
From: Tomasz Figa @ 2018-10-21 5:29 UTC (permalink / raw)
To: Sakari Ailus
Cc: Linux Media Mailing List, Cao Bing Bu, Mani, Rajmohan,
bingbu.cao, Qiu, Tian Shu, Zheng, Jian Xu, Rapolu, Chiranjeevi
On Sun, Oct 21, 2018 at 6:53 AM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Tomasz,
>
> On Thu, Oct 18, 2018 at 12:24:31PM +0900, Tomasz Figa wrote:
> > On Tue, Oct 16, 2018 at 8:50 PM Sakari Ailus
> > <sakari.ailus@linux.intel.com> wrote:
> > >
> > > Hi Tomasz,
> > >
> > > On Fri, Oct 12, 2018 at 05:06:56PM +0900, Tomasz Figa wrote:
> > > > On Fri, Oct 12, 2018 at 4:58 PM Sakari Ailus
> > > > <sakari.ailus@linux.intel.com> wrote:
> > > > >
> > > > > Hi Tomasz,
> > > > >
> > > > > On Fri, Oct 12, 2018 at 01:51:10PM +0900, Tomasz Figa wrote:
> > > > > > Hi Sakari,
> > > > > >
> > > > > > On Wed, Sep 26, 2018 at 11:38 AM <bingbu.cao@intel.com> wrote:
> > > > > > >
> > > > > > > From: Bingbu Cao <bingbu.cao@intel.com>
> > > > > > >
> > > > > > > Add a v4l2 sub-device driver for the Sony imx319 image sensor.
> > > > > > > This is a camera sensor using the i2c bus for control and the
> > > > > > > csi-2 bus for data.
> > > > > > >
> > > > > > > This driver supports following features:
> > > > > > > - manual exposure and analog/digital gain control support
> > > > > > > - vblank/hblank control support
> > > > > > > - 4 test patterns control support
> > > > > > > - vflip/hflip control support (will impact the output bayer order)
> > > > > > > - support following resolutions:
> > > > > > > - 3264x2448, 3280x2464 @ 30fps
> > > > > > > - 1936x1096, 1920x1080 @ 60fps
> > > > > > > - 1640x1232, 1640x922, 1296x736, 1280x720 @ 120fps
> > > > > > > - support 4 bayer orders output (via change v/hflip)
> > > > > > > - SRGGB10(default), SGRBG10, SGBRG10, SBGGR10
> > > > > > >
> > > > > > > Cc: Tomasz Figa <tfiga@chromium.org>
> > > > > > > Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > > > > Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
> > > > > > > Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
> > > > > > >
> > > > > > > ---
> > > > > > >
> > > > > > > This patch is based on sakari's media-tree git:
> > > > > > > https://git.linuxtv.org/sailus/media_tree.git/log/?h=for-4.20-1
> > > > > > >
> > > > > > > Changes from v5:
> > > > > > > - add some comments for gain calculation
> > > > > > > - use lock to protect the format
> > > > > > > - fix some style issues
> > > > > > >
> > > > > > > Changes from v4 to v5:
> > > > > > > - use single PLL for all internal clocks
> > > > > > > - change link frequency to 482.4MHz
> > > > > > > - adjust frame timing for 2x2 binning modes
> > > > > > > and enlarge frame readout time
> > > > > > > - get CSI-2 link frequencies and external clock
> > > > > > > from firmware
> > > > > >
> > > > > > If I remember correctly, that was suggested by you. Why do we need to
> > > > > > specify link frequency in firmware if it's fully configured by the
> > > > > > driver, with the only external dependency being the external clock?
> > > > >
> > > > > The driver that's now in upstream supports, for now, a very limited set of
> > > > > configurations from what the sensor supports. These are more or less
> > > > > tailored to the particular system where it is being used right now (output
> > > > > image size, external clock frequency, frame rates, link frequencies etc.).
> > > >
> > > > As a side note, they're tailored to exactly the system I mentioned,
> > > > with different link frequency hardcoded in the firmware, coming from
> > > > earlier stage of development.
> > > >
> > > > > If the same sensor is needed elsewhere (quite likely), the configuration
> > > > > needed elsewhere is very likely to be different from what you're using now.
> > > > >
> > > > > The link frequency in particular is important as using a different link
> > > > > frequency (which could be fine elsewhere) could cause EMI issues, e.g.
> > > > > rendering your GPS receiver inoperable during the time the camera sensor is
> > > > > streaming images.
> > > > >
> > > > > Should new configurations be added to this driver to support a different
> > > > > system, the link frequencies used by those configurations may be
> > > > > problematic to your system, and after a software update the driver could as
> > > > > well use those new frequencies. That's a big no-no.
> > > > >
> > > >
> > > > Okay, those are some valid points indeed, thanks for clarifying.
> > > >
> > > > > >
> > > > > > We're having problems with firmware listing the link frequency from v4
> > > > > > and we can't easily change it anymore to report the new one. I feel
> > > > > > like this dependency on the firmware here is unnecessary, as long as
> > > > > > the external clock frequency matches.
> > > > >
> > > > > This is information you really need to know.
> > > > >
> > > > > A number of older drivers do not use the link frequency information from
> > > > > the firmware but that comes with a risk. Really, it's better to change the
> > > > > frequency now to something you can choose, rather than have it changed
> > > > > later on to something someone else chose for you.
> > > >
> > > > I guess it means that we have to carry a local downstream patch that
> > > > bypasses this check, since we cannot easily change the firmware
> > > > anymore.
> > >
> > > Is there a possibility update the firmware, or carry an SSDT overlay as part
> > > of the software? The options are laid out in
> > > Documentation/acpi/ssdt-overlays.txt . Do remember to pay attention to the
> > > revision field --- also in future Coreboot updates.
> > >
> >
> > Generally we try to avoid updating the firmware in the field, but most
> > of the time there is a reason to do it anyway, so that might
> > eventually happen. Let me try to figure out.
> >
> > > >
> > > > An alternative would be to make the driver try to select a frequency
> > > > that matches what's in the firmware, but issue a warning and fall back
> > > > to a default one if a matching is not found. It might be actually
> > > > better than nothing for some early testing on new systems, since it
> > > > wouldn't require firmware changes.
> > >
> > > You don't need firmware changes per se; see above. Allowing that will very,
> > > very easily lead this being unaddressed during developement and changing
> > > later on inadvertly.
> >
> > Still, requiring the user to create an SSDT overlay sounds like an
> > overkill, for something that is not really a fatal error. We handle
> > ACPI firmware bugs in many parts of the kernel by issuing a warning
> > and using some reasonably safe fallback and I don't know why we
> > couldn't do the same here.
>
> To address this in kernel only, I presume one would have to plant that
> snippet in the ACPI table based on recognising the machine name and the
> firmware version. I don't think this is supported right now.
My point is that we normally handle such mismatches in the kernel by
just printing a warning and forcing whatever the kernel needs for the
device to work. For the cases where such override is not sensible by
default (due to potential side-effects or so), a command line argument
is often provided to force ignoring the firmware data.
>
> OTOH, an alternative option could be, if you use initrd for other reasons,
> to bake the SSDT overlay into the initrd based on the machine
> identification when creating the initrd image. That would require no kernel
> changes and compared to making kernel changes, this way also there would be
> no adverse effect on the size of the kernel.
We don't use initrd.
Generally it looks like the simplest way forward is to carry a
downstream patch turning the driver error into a warning. It's
probably the simplest thing to do, if we can't have it handled
upstream.
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2018-10-21 13:42 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-26 2:42 [PATCH v7] media: add imx319 camera sensor driver bingbu.cao
2018-09-26 7:57 ` Sakari Ailus
2018-09-26 8:08 ` Bing Bu Cao
2018-10-12 4:51 ` Tomasz Figa
2018-10-12 7:58 ` Sakari Ailus
2018-10-12 8:06 ` Tomasz Figa
2018-10-16 11:50 ` Sakari Ailus
2018-10-18 3:24 ` Tomasz Figa
2018-10-20 21:52 ` Sakari Ailus
2018-10-21 5:29 ` Tomasz Figa
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