148 lines
4.7 KiB
Diff
148 lines
4.7 KiB
Diff
From 03c77d0b8ef969c88e00729dbbf488eba081aa7d Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Tue, 15 Jun 2021 18:34:38 +0100
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Subject: [PATCH] media: i2c: imx258: Make image geometry meet sensor
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requirements
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The output image is defined as being 4208x3118 pixels in size.
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Y_ADD_STA register was set to 0, and Y_ADD_END to 3118, giving
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3119 lines total.
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The datasheet lists a requirement for Y_ADD_STA to be a multiple
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of a power of 2 depending on binning/scaling mode (2 for full pixel,
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4 for x2-bin/scale, 8 for (x2-bin)+(x2-subsample) or x4-bin, or 16
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for (x4-bin)+(x2-subsample)).
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(Y_ADD_END – Y_ADD_STA + 1) also has to be a similar power of 2.
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The current configuration for the full res modes breaks that second
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requirement, and we can't increase Y_ADD_STA to 1 to retain exactly
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the same field of view as that then breaks the first requirement.
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For the binned modes, they are worse off as 3118 is not a multiple of
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4.
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Increase the main mode to 4208x3120 so that it is the same FOV as the
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binned modes, with Y_ADD_STA at 0.
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Fix Y_ADD_STA and Y_ADD_END for the binned modes so that they meet the
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sensor requirements.
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This does change the Bayer order as the default configuration is for
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H&V flips to be enabled, so readout is from Y_STA_END to Y_ADD_STA,
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and this patch has changed Y_STA_END.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/media/i2c/imx258.c | 26 +++++++++++++-------------
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1 file changed, 13 insertions(+), 13 deletions(-)
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--- a/drivers/media/i2c/imx258.c
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+++ b/drivers/media/i2c/imx258.c
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@@ -110,7 +110,7 @@ struct imx258_mode {
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struct imx258_reg_list reg_list;
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};
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-/* 4208x3118 needs 1267Mbps/lane, 4 lanes */
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+/* 4208x3120 needs 1267Mbps/lane, 4 lanes */
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static const struct imx258_reg mipi_data_rate_1267mbps[] = {
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{ 0x0301, 0x05 },
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{ 0x0303, 0x02 },
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@@ -147,7 +147,7 @@ static const struct imx258_reg mipi_data
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{ 0x0823, 0x00 },
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};
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-static const struct imx258_reg mode_4208x3118_regs[] = {
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+static const struct imx258_reg mode_4208x3120_regs[] = {
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{ 0x0136, 0x13 },
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{ 0x0137, 0x33 },
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{ 0x3051, 0x00 },
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@@ -209,7 +209,7 @@ static const struct imx258_reg mode_4208
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{ 0x0348, 0x10 },
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{ 0x0349, 0x6F },
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{ 0x034A, 0x0C },
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- { 0x034B, 0x2E },
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+ { 0x034B, 0x2F },
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{ 0x0381, 0x01 },
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{ 0x0383, 0x01 },
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{ 0x0385, 0x01 },
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@@ -328,7 +328,7 @@ static const struct imx258_reg mode_2104
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{ 0x0348, 0x10 },
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{ 0x0349, 0x6F },
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{ 0x034A, 0x0C },
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- { 0x034B, 0x2E },
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+ { 0x034B, 0x2F },
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{ 0x0381, 0x01 },
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{ 0x0383, 0x01 },
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{ 0x0385, 0x01 },
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@@ -447,7 +447,7 @@ static const struct imx258_reg mode_1048
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{ 0x0348, 0x10 },
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{ 0x0349, 0x6F },
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{ 0x034A, 0x0C },
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- { 0x034B, 0x2E },
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+ { 0x034B, 0x2F },
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{ 0x0381, 0x01 },
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{ 0x0383, 0x01 },
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{ 0x0385, 0x01 },
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@@ -561,12 +561,12 @@ static const struct imx258_link_freq_con
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static const struct imx258_mode supported_modes[] = {
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{
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.width = 4208,
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- .height = 3118,
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+ .height = 3120,
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.vts_def = IMX258_VTS_30FPS,
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.vts_min = IMX258_VTS_30FPS,
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.reg_list = {
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- .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs),
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- .regs = mode_4208x3118_regs,
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+ .num_of_regs = ARRAY_SIZE(mode_4208x3120_regs),
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+ .regs = mode_4208x3120_regs,
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},
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.link_freq_index = IMX258_LINK_FREQ_1267MBPS,
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},
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@@ -709,7 +709,7 @@ static int imx258_open(struct v4l2_subde
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/* Initialize try_fmt */
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try_fmt->width = supported_modes[0].width;
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try_fmt->height = supported_modes[0].height;
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- try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
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+ try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
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try_fmt->field = V4L2_FIELD_NONE;
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return 0;
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@@ -821,7 +821,7 @@ static int imx258_enum_mbus_code(struct
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if (code->index > 0)
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return -EINVAL;
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- code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
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+ code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
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return 0;
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}
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@@ -833,7 +833,7 @@ static int imx258_enum_frame_size(struct
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if (fse->index >= ARRAY_SIZE(supported_modes))
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return -EINVAL;
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- if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
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+ if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
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return -EINVAL;
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fse->min_width = supported_modes[fse->index].width;
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@@ -849,7 +849,7 @@ static void imx258_update_pad_format(con
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{
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fmt->format.width = mode->width;
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fmt->format.height = mode->height;
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- fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
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+ fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
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fmt->format.field = V4L2_FIELD_NONE;
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}
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@@ -897,7 +897,7 @@ static int imx258_set_pad_format(struct
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mutex_lock(&imx258->mutex);
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/* Only one raw bayer(GBRG) order is supported */
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- fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
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+ fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
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mode = v4l2_find_nearest_size(supported_modes,
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ARRAY_SIZE(supported_modes), width, height,
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