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media: i2c: imx219: Implement V4L2_CID_LINK_FREQ control

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This control is needed for imx219 driver, as the link frequency
is independent from the pixel rate in this case, and can't be
calculated from the pixel rate.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Andrey Konovalov 2021-01-26 08:49:34 +01:00 committed by Mauro Carvalho Chehab
parent 6f862f8488
commit 49b94d580a
1 changed files with 14 additions and 1 deletions
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15
drivers/media/i2c/imx219.c
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@ -390,6 +390,10 @@ static const struct imx219_reg raw10_framefmt_regs[] = {
{0x0309, 0x0a},
};
static const s64 imx219_link_freq_menu[] = {
IMX219_DEFAULT_LINK_FREQ,
};
static const char * const imx219_test_pattern_menu[] = {
"Disabled",
"Color Bars",
@ -547,6 +551,7 @@ struct imx219 {
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;
@ -1269,7 +1274,7 @@ static int imx219_init_controls(struct imx219 *imx219)
int i, ret;
ctrl_hdlr = &imx219->ctrl_handler;
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 11);
ret = v4l2_ctrl_handler_init(ctrl_hdlr, 12);
if (ret)
return ret;
@ -1283,6 +1288,14 @@ static int imx219_init_controls(struct imx219 *imx219)
IMX219_PIXEL_RATE, 1,
IMX219_PIXEL_RATE);
imx219->link_freq =
v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx219_ctrl_ops,
V4L2_CID_LINK_FREQ,
ARRAY_SIZE(imx219_link_freq_menu) - 1, 0,
imx219_link_freq_menu);
if (imx219->link_freq)
imx219->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* Initial vblank/hblank/exposure parameters based on current mode */
imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
V4L2_CID_VBLANK, IMX219_VBLANK_MIN,