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52 lines
1.6 KiB
Diff
52 lines
1.6 KiB
Diff
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From c9a785d57c302d5f1d4de4e67fa57522e66c7882 Mon Sep 17 00:00:00 2001
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From: Naushir Patuck <naush@raspberrypi.com>
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Date: Mon, 6 Nov 2023 09:40:50 +0000
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Subject: [PATCH] drivers: media: imx477: Add V4L2_CID_LINK_FREQ control
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Add V4L2_CID_LINK_FREQ as a read-only control with a value of 450 Mhz.
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This will be used by the CFE driver to corretly setup the DPHY timing
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parameters in the CSI-2 block.
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Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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---
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drivers/media/i2c/imx477.c | 14 ++++++++++++++
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1 file changed, 14 insertions(+)
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--- a/drivers/media/i2c/imx477.c
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+++ b/drivers/media/i2c/imx477.c
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@@ -164,6 +164,10 @@ struct imx477_mode {
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struct imx477_reg_list reg_list;
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};
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+static const s64 imx477_link_freq_menu[] = {
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+ IMX477_DEFAULT_LINK_FREQ,
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+};
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+
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static const struct imx477_reg mode_common_regs[] = {
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{0x0136, 0x18},
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{0x0137, 0x00},
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@@ -1110,6 +1114,7 @@ struct imx477 {
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struct v4l2_ctrl_handler ctrl_handler;
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/* V4L2 Controls */
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struct v4l2_ctrl *pixel_rate;
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+ struct v4l2_ctrl *link_freq;
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struct v4l2_ctrl *exposure;
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struct v4l2_ctrl *vflip;
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struct v4l2_ctrl *hflip;
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@@ -1997,6 +2002,15 @@ static int imx477_init_controls(struct i
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IMX477_PIXEL_RATE, 1,
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IMX477_PIXEL_RATE);
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+ /* LINK_FREQ is also read only */
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+ imx477->link_freq =
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+ v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx477_ctrl_ops,
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+ V4L2_CID_LINK_FREQ,
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+ ARRAY_SIZE(imx477_link_freq_menu) - 1, 0,
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+ imx477_link_freq_menu);
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+ if (imx477->link_freq)
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+ imx477->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
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+
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/*
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* Create the controls here, but mode specific limits are setup
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* in the imx477_set_framing_limits() call below.
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