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