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51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
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From f6c0447dfb915538a0d5fa966fc26ca022cf49c8 Mon Sep 17 00:00:00 2001
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From: Naushir Patuck <naush@raspberrypi.com>
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Date: Fri, 20 Sep 2024 08:25:58 +0100
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Subject: [PATCH 1269/1350] drivers: media: imx500: Fixes for vblank control
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Reduce the default/max framerate of the 2x2 binned mode to 30fps.
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The current limit of 50fps can cause the sensor to produce corrupt
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frames and cause missing framing events.
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Also fixup the vblank control min/max/default/step paramters when
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setting up.
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Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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---
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drivers/media/i2c/imx500.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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--- a/drivers/media/i2c/imx500.c
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+++ b/drivers/media/i2c/imx500.c
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@@ -47,7 +47,7 @@
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/* V_TIMING internal */
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#define IMX500_REG_FRAME_LENGTH CCI_REG16(0x0340)
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#define IMX500_FRAME_LENGTH_MAX 0xffdc
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-#define IMX500_VBLANK_MIN 4
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+#define IMX500_VBLANK_MIN 1117
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/* H_TIMING internal */
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#define IMX500_REG_LINE_LENGTH CCI_REG16(0x0342)
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@@ -922,7 +922,7 @@ static const struct imx500_mode imx500_s
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.width = 4056,
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.height = 3040,
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},
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- .framerate_default = 40,
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+ .framerate_default = 30,
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.reg_list = {
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.num_of_regs = ARRAY_SIZE(mode_2028x1520_regs),
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.regs = mode_2028x1520_regs,
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@@ -1771,10 +1771,10 @@ static void imx500_set_framing_limits(st
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/* Update limits and set FPS to default */
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__v4l2_ctrl_modify_range(
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- imx500->vblank, 1,
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+ imx500->vblank, IMX500_VBLANK_MIN,
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((1 << IMX500_LONG_EXP_SHIFT_MAX) * IMX500_FRAME_LENGTH_MAX) -
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mode->height,
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- IMX500_VBLANK_MIN, frm_length_default - mode->height);
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+ 1, frm_length_default - mode->height);
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/* Setting this will adjust the exposure limits as well. */
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__v4l2_ctrl_s_ctrl(imx500->vblank, frm_length_default - mode->height);
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