8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
From 8d14990a463ff18da74d0727610aab8d1453ac24 Mon Sep 17 00:00:00 2001
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From: Naushir Patuck <naush@raspberrypi.com>
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Date: Fri, 28 Feb 2025 12:49:28 +0000
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Subject: [PATCH] imx500: Fix for long exposure setup
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The IMX500 (unlike the IMX477/IMX708) requires two regsiters to be set
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for the exposure shift value to work correctly. The additional register
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write (which was missing) is for the integration time shift.
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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 | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/media/i2c/imx500.c
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+++ b/drivers/media/i2c/imx500.c
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@@ -57,6 +57,7 @@
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/* Long exposure multiplier */
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#define IMX500_LONG_EXP_SHIFT_MAX 7
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#define IMX500_LONG_EXP_SHIFT_REG CCI_REG8(0x3210)
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+#define IMX500_LONG_EXP_CIT_SHIFT_REG CCI_REG8(0x3100)
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/* Exposure control */
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#define IMX500_REG_EXPOSURE CCI_REG16(0x0202)
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@@ -1772,6 +1773,11 @@ static int imx500_set_frame_length(struc
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if (ret)
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return ret;
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+ ret = cci_write(imx500->regmap, IMX500_LONG_EXP_CIT_SHIFT_REG,
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+ imx500->long_exp_shift, NULL);
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+ if (ret)
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+ return ret;
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+
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return cci_write(imx500->regmap, IMX500_LONG_EXP_SHIFT_REG,
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imx500->long_exp_shift, NULL);
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}
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