target/linux/bcm27xx/patches-6.1/950-1238-drivers-media-arducam_64mp-Add-V4L2_CID_LINK_FREQ-co.patch

   1 From 5e339e1502c9be0f624398cf774e5880a6d1a677 Mon Sep 17 00:00:00 2001
   2 From: Lee Jackson <lee.jackson@arducam.com>
   3 Date: Wed, 10 Jan 2024 09:06:16 +0800
   4 Subject: [PATCH] drivers: media: arducam_64mp: Add V4L2_CID_LINK_FREQ control
   5
   6 Add V4L2_CID_LINK_FREQ as a read-only control with a value of 456 Mhz.
   7 This will be used by the CFE driver to corretly setup the DPHY timing
   8 parameters in the CSI-2 block.
   9
  10 Signed-off-by: Lee Jackson <lee.jackson@arducam.com>
  11 ---
  12  drivers/media/i2c/arducam_64mp.c | 16 ++++++++++++++++
  13  1 file changed, 16 insertions(+)
  14
  15 --- a/drivers/media/i2c/arducam_64mp.c
  16 +++ b/drivers/media/i2c/arducam_64mp.c
  17 @@ -143,6 +143,10 @@ struct arducam_64mp_mode {
  18         struct arducam_64mp_reg_list reg_list;
  19  };
  20
  21 +static const s64 arducam_64mp_link_freq_menu[] = {
  22 +       ARDUCAM_64MP_DEFAULT_LINK_FREQ,
  23 +};
  24 +
  25  static const struct arducam_64mp_reg mode_common_regs[] = {
  26         {0x0100, 0x00},
  27         {0x0136, 0x18},
  28 @@ -2272,9 +2276,11 @@ static int arducam_64mp_init_controls(st
  29         struct v4l2_ctrl_handler *ctrl_hdlr;
  30         struct i2c_client *client = v4l2_get_subdevdata(&arducam_64mp->sd);
  31         struct v4l2_fwnode_device_properties props;
  32 +       struct v4l2_ctrl *link_freq;
  33         unsigned int i;
  34         int ret;
  35         u8 test_pattern_max;
  36 +       u8 link_freq_max;
  37
  38         ctrl_hdlr = &arducam_64mp->ctrl_handler;
  39         ret = v4l2_ctrl_handler_init(ctrl_hdlr, 16);
  40 @@ -2292,6 +2298,16 @@ static int arducam_64mp_init_controls(st
  41                                                      ARDUCAM_64MP_PIXEL_RATE, 1,
  42                                                      ARDUCAM_64MP_PIXEL_RATE);
  43
  44 +       /* LINK_FREQ is also read only */
  45 +       link_freq_max = ARRAY_SIZE(arducam_64mp_link_freq_menu) - 1;
  46 +       link_freq =
  47 +               v4l2_ctrl_new_int_menu(ctrl_hdlr, &arducam_64mp_ctrl_ops,
  48 +                                      V4L2_CID_LINK_FREQ,
  49 +                                      link_freq_max, 0,
  50 +                                      arducam_64mp_link_freq_menu);
  51 +       if (link_freq)
  52 +               link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
  53 +
  54         /*
  55          * Create the controls here, but mode specific limits are setup
  56          * in the arducam_64mp_set_framing_limits() call below.