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media: i2c: imx219: fix binning and rate_factor for 480p and 1232p

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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] raspberrypi#5493

Signed-off-by: Vinay Varma <varmavinaym@gmail.com>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reworked due to upstream changes
This commit is contained in:
Vinay Varma
2023-09-22 18:17:42 +01:00
committed by Dom Cobley
parent 42e3e48736
commit f27ee68a43
1 changed files with 31 additions and 1 deletions
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32
drivers/media/i2c/imx219.c
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@@ -146,6 +146,12 @@
#define IMX219_PIXEL_ARRAY_WIDTH 3280U
#define IMX219_PIXEL_ARRAY_HEIGHT 2464U
enum binning_bit_depths {
BINNING_IDX_8_BIT,
BINNING_IDX_10_BIT,
BINNING_IDX_MAX
};
/* Mode : resolution and related config&values */
struct imx219_mode {
/* Frame width */
@@ -155,6 +161,10 @@ struct imx219_mode {
/* V-timing */
unsigned int fll_def;
unsigned int vts_def;
/* binning mode based on format code */
unsigned int binning[BINNING_IDX_MAX];
};
static const struct cci_reg_sequence imx219_common_regs[] = {
@@ -313,24 +323,44 @@ static const struct imx219_mode supported_modes[] = {
.width = 3280,
.height = 2464,
.fll_def = 3526,
.vts_def = 3526,
.binning = {
[BINNING_IDX_8_BIT] = IMX219_BINNING_NONE,
[BINNING_IDX_10_BIT] = IMX219_BINNING_NONE,
},
},
{
/* 1080P 30fps cropped */
.width = 1920,
.height = 1080,
.fll_def = 1763,
.vts_def = 1763,
.binning = {
[BINNING_IDX_8_BIT] = IMX219_BINNING_NONE,
[BINNING_IDX_10_BIT] = IMX219_BINNING_NONE,
},
},
{
/* 2x2 binned 60fps mode */
.width = 1640,
.height = 1232,
.fll_def = 1707,
.vts_def = 1763,
.binning = {
[BINNING_IDX_8_BIT] = IMX219_BINNING_X2_ANALOG,
[BINNING_IDX_10_BIT] = IMX219_BINNING_X2,
},
},
{
/* 640x480 60fps mode */
.width = 640,
.height = 480,
.fll_def = 1707,
.vts_def = 1763,
.binning = {
[BINNING_IDX_8_BIT] = IMX219_BINNING_X2_ANALOG,
[BINNING_IDX_10_BIT] = IMX219_BINNING_X2_ANALOG,
},
},
};
@@ -431,7 +461,7 @@ static unsigned int imx219_get_binning(struct v4l2_subdev_state *state,
*bin_v = IMX219_BINNING_NONE;
if (*bin_h == 2 && *bin_v == 2)
return IMX219_BINNING_X2_ANALOG;
return bin_mode;
else if (*bin_h == 2 || *bin_v == 2)
/*
* Don't use analog binning if only one dimension