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openwrt/target/linux/bcm27xx/patches-6.1/950-0790-media-i2c-imx219-fix-binning-and-rate_factor-for-480.patch
Marty Jones 2e715fb4fc bcm27xx: update 6.1 patches to latest version 
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-01-25 17:46:45 +01:00

307 lines
8.9 KiB
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From 3ad8e28669e0058e3cec482a47215e50e33f2574 Mon Sep 17 00:00:00 2001
From: Vinay Varma <varmavinaym@gmail.com>
Date: Sun, 11 Jun 2023 23:45:03 +0800
Subject: [PATCH] media: i2c: imx219: fix binning and rate_factor for 480p and
1232p
At a high FPS with RAW10, there is frame corruption for 480p because the
rate_factor of 2 is used with the normal 2x2 bining [1]. This commit
ties the rate_factor to the selected binning mode. For the 480p mode,
analog 2x2 binning mode with a rate_factor of 2 is always used. For the
1232p mode the normal 2x2 binning mode is used for RAW10 while analog
2x2 binning mode is used for RAW8.
[1] https://github.com/raspberrypi/linux/issues/5493
Signed-off-by: Vinay Varma <varmavinaym@gmail.com>
---
drivers/media/i2c/imx219.c | 143 ++++++++++++++++++++++++++-----------
1 file changed, 100 insertions(+), 43 deletions(-)
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -136,6 +136,18 @@ enum pad_types {
NUM_PADS
};
+enum binning_mode {
+ BINNING_NONE,
+ BINNING_DIGITAL_2x2,
+ BINNING_ANALOG_2x2,
+};
+
+enum binning_bit_depths {
+ BINNING_IDX_8_BIT,
+ BINNING_IDX_10_BIT,
+ BINNING_IDX_MAX
+};
+
struct imx219_reg {
u16 address;
u8 val;
@@ -162,11 +174,8 @@ struct imx219_mode {
/* Default register values */
struct imx219_reg_list reg_list;
- /* 2x2 binning is used */
- bool binning;
-
- /* Relative pixel clock rate factor for the mode. */
- unsigned int rate_factor;
+ /* binning mode based on format code */
+ enum binning_mode binning[BINNING_IDX_MAX];
};
static const struct imx219_reg imx219_common_regs[] = {
@@ -404,8 +413,10 @@ static const struct imx219_mode supporte
.num_of_regs = ARRAY_SIZE(mode_3280x2464_regs),
.regs = mode_3280x2464_regs,
},
- .binning = false,
- .rate_factor = 1,
+ .binning = {
+ [BINNING_IDX_8_BIT] = BINNING_NONE,
+ [BINNING_IDX_10_BIT] = BINNING_NONE,
+ },
},
{
/* 1080P 30fps cropped */
@@ -422,8 +433,10 @@ static const struct imx219_mode supporte
.num_of_regs = ARRAY_SIZE(mode_1920_1080_regs),
.regs = mode_1920_1080_regs,
},
- .binning = false,
- .rate_factor = 1,
+ .binning = {
+ [BINNING_IDX_8_BIT] = BINNING_NONE,
+ [BINNING_IDX_10_BIT] = BINNING_NONE,
+ },
},
{
/* 2x2 binned 30fps mode */
@@ -440,8 +453,10 @@ static const struct imx219_mode supporte
.num_of_regs = ARRAY_SIZE(mode_1640_1232_regs),
.regs = mode_1640_1232_regs,
},
- .binning = true,
- .rate_factor = 1,
+ .binning = {
+ [BINNING_IDX_8_BIT] = BINNING_ANALOG_2x2,
+ [BINNING_IDX_10_BIT] = BINNING_DIGITAL_2x2,
+ },
},
{
/* 640x480 30fps mode */
@@ -458,12 +473,10 @@ static const struct imx219_mode supporte
.num_of_regs = ARRAY_SIZE(mode_640_480_regs),
.regs = mode_640_480_regs,
},
- .binning = true,
- /*
- * This mode uses a special 2x2 binning that doubles the
- * internal pixel clock rate.
- */
- .rate_factor = 2,
+ .binning = {
+ [BINNING_IDX_8_BIT] = BINNING_ANALOG_2x2,
+ [BINNING_IDX_10_BIT] = BINNING_ANALOG_2x2,
+ },
},
};
@@ -652,12 +665,51 @@ static int imx219_open(struct v4l2_subde
return 0;
}
+static int imx219_resolve_binning(struct imx219 *imx219,
+ enum binning_mode *binning)
+{
+ switch (imx219->fmt.code) {
+ case MEDIA_BUS_FMT_SRGGB8_1X8:
+ case MEDIA_BUS_FMT_SGRBG8_1X8:
+ case MEDIA_BUS_FMT_SGBRG8_1X8:
+ case MEDIA_BUS_FMT_SBGGR8_1X8:
+ *binning = imx219->mode->binning[BINNING_IDX_8_BIT];
+ return 0;
+
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ case MEDIA_BUS_FMT_SGRBG10_1X10:
+ case MEDIA_BUS_FMT_SGBRG10_1X10:
+ case MEDIA_BUS_FMT_SBGGR10_1X10:
+ *binning = imx219->mode->binning[BINNING_IDX_10_BIT];
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int imx219_get_rate_factor(struct imx219 *imx219)
+{
+ enum binning_mode binning = BINNING_NONE;
+ int ret = imx219_resolve_binning(imx219, &binning);
+
+ if (ret < 0)
+ return ret;
+ switch (binning) {
+ case BINNING_NONE:
+ case BINNING_DIGITAL_2x2:
+ return 1;
+ case BINNING_ANALOG_2x2:
+ return 2;
+ }
+ return -EINVAL;
+}
+
static int imx219_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx219 *imx219 =
container_of(ctrl->handler, struct imx219, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
int ret;
+ int rate_factor;
if (ctrl->id == V4L2_CID_VBLANK) {
int exposure_max, exposure_def;
@@ -679,6 +731,10 @@ static int imx219_set_ctrl(struct v4l2_c
if (pm_runtime_get_if_in_use(&client->dev) == 0)
return 0;
+ rate_factor = imx219_get_rate_factor(imx219);
+ if (rate_factor < 0)
+ return rate_factor;
+
switch (ctrl->id) {
case V4L2_CID_ANALOGUE_GAIN:
ret = imx219_write_reg(imx219, IMX219_REG_ANALOG_GAIN,
@@ -687,7 +743,7 @@ static int imx219_set_ctrl(struct v4l2_c
case V4L2_CID_EXPOSURE:
ret = imx219_write_reg(imx219, IMX219_REG_EXPOSURE,
IMX219_REG_VALUE_16BIT,
- ctrl->val / imx219->mode->rate_factor);
+ ctrl->val / rate_factor);
break;
case V4L2_CID_DIGITAL_GAIN:
ret = imx219_write_reg(imx219, IMX219_REG_DIGITAL_GAIN,
@@ -708,7 +764,7 @@ static int imx219_set_ctrl(struct v4l2_c
ret = imx219_write_reg(imx219, IMX219_REG_VTS,
IMX219_REG_VALUE_16BIT,
(imx219->mode->height + ctrl->val) /
- imx219->mode->rate_factor);
+ rate_factor);
break;
case V4L2_CID_HBLANK:
ret = imx219_write_reg(imx219, IMX219_REG_HTS,
@@ -890,7 +946,7 @@ static int imx219_set_pad_format(struct
struct imx219 *imx219 = to_imx219(sd);
const struct imx219_mode *mode;
struct v4l2_mbus_framefmt *framefmt;
- int exposure_max, exposure_def, hblank, pixel_rate;
+ int exposure_max, exposure_def, hblank, pixel_rate, rate_factor;
unsigned int i;
if (fmt->pad >= NUM_PADS)
@@ -924,6 +980,9 @@ static int imx219_set_pad_format(struct
imx219->fmt = fmt->format;
imx219->mode = mode;
+ rate_factor = imx219_get_rate_factor(imx219);
+ if (rate_factor < 0)
+ return rate_factor;
/* Update limits and set FPS to default */
__v4l2_ctrl_modify_range(imx219->vblank,
IMX219_VBLANK_MIN,
@@ -957,8 +1016,7 @@ static int imx219_set_pad_format(struct
__v4l2_ctrl_s_ctrl(imx219->hblank, hblank);
/* Scale the pixel rate based on the mode specific factor */
- pixel_rate =
- IMX219_PIXEL_RATE * imx219->mode->rate_factor;
+ pixel_rate = IMX219_PIXEL_RATE * rate_factor;
__v4l2_ctrl_modify_range(imx219->pixel_rate, pixel_rate,
pixel_rate, 1, pixel_rate);
}
@@ -1001,30 +1059,25 @@ static int imx219_set_framefmt(struct im
static int imx219_set_binning(struct imx219 *imx219)
{
- if (!imx219->mode->binning) {
+ enum binning_mode binning = BINNING_NONE;
+ int ret = imx219_resolve_binning(imx219, &binning);
+
+ if (ret < 0)
+ return ret;
+ switch (binning) {
+ case BINNING_NONE:
return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE,
IMX219_REG_VALUE_16BIT,
IMX219_BINNING_NONE);
- }
-
- switch (imx219->fmt.code) {
- case MEDIA_BUS_FMT_SRGGB8_1X8:
- case MEDIA_BUS_FMT_SGRBG8_1X8:
- case MEDIA_BUS_FMT_SGBRG8_1X8:
- case MEDIA_BUS_FMT_SBGGR8_1X8:
+ case BINNING_DIGITAL_2x2:
return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE,
IMX219_REG_VALUE_16BIT,
- IMX219_BINNING_2X2_ANALOG);
-
- case MEDIA_BUS_FMT_SRGGB10_1X10:
- case MEDIA_BUS_FMT_SGRBG10_1X10:
- case MEDIA_BUS_FMT_SGBRG10_1X10:
- case MEDIA_BUS_FMT_SBGGR10_1X10:
+ IMX219_BINNING_2X2);
+ case BINNING_ANALOG_2x2:
return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE,
IMX219_REG_VALUE_16BIT,
- IMX219_BINNING_2X2);
+ IMX219_BINNING_2X2_ANALOG);
}
-
return -EINVAL;
}
@@ -1342,7 +1395,7 @@ static int imx219_init_controls(struct i
struct v4l2_ctrl_handler *ctrl_hdlr;
unsigned int height = imx219->mode->height;
struct v4l2_fwnode_device_properties props;
- int exposure_max, exposure_def, hblank, pixel_rate;
+ int exposure_max, exposure_def, hblank, pixel_rate, rate_factor;
int i, ret;
ctrl_hdlr = &imx219->ctrl_handler;
@@ -1353,8 +1406,12 @@ static int imx219_init_controls(struct i
mutex_init(&imx219->mutex);
ctrl_hdlr->lock = &imx219->mutex;
+ rate_factor = imx219_get_rate_factor(imx219);
+ if (rate_factor < 0)
+ return rate_factor;
+
/* By default, PIXEL_RATE is read only */
- pixel_rate = IMX219_PIXEL_RATE * imx219->mode->rate_factor;
+ pixel_rate = IMX219_PIXEL_RATE * rate_factor;
imx219->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
V4L2_CID_PIXEL_RATE,
pixel_rate, pixel_rate,
@@ -1576,6 +1633,9 @@ static int imx219_probe(struct i2c_clien
goto error_power_off;
usleep_range(100, 110);
+ /* Initialize default format */
+ imx219_set_default_format(imx219);
+
ret = imx219_init_controls(imx219);
if (ret)
goto error_power_off;
@@ -1590,9 +1650,6 @@ static int imx219_probe(struct i2c_clien
imx219->pad[IMAGE_PAD].flags = MEDIA_PAD_FL_SOURCE;
imx219->pad[METADATA_PAD].flags = MEDIA_PAD_FL_SOURCE;
- /* Initialize default format */
- imx219_set_default_format(imx219);
-
ret = media_entity_pads_init(&imx219->sd.entity, NUM_PADS, imx219->pad);
if (ret) {
dev_err(dev, "failed to init entity pads: %d\n", ret);
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