Add support for V4L2_CID_LINK_FREQ which currently reports a single
hard-coded frequency which depends on the fixed pixel clock.
Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx>
---
drivers/media/i2c/ar0521.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/media/i2c/ar0521.c b/drivers/media/i2c/ar0521.c
index fcd852760750..2310346f11d5 100644
--- a/drivers/media/i2c/ar0521.c
+++ b/drivers/media/i2c/ar0521.c
@@ -89,6 +89,10 @@ static const char * const ar0521_supply_names[] = {
"vaa", /* Analog (2.7V) supply */
};
+static const s64 ar0521_link_frequencies[] = {
+ 184000000,
+};
+
struct ar0521_ctrls {
struct v4l2_ctrl_handler handler;
struct {
@@ -547,6 +551,13 @@ static int ar0521_s_ctrl(struct v4l2_ctrl *ctrl)
ret = ar0521_write_reg(sensor, AR0521_REG_TEST_PATTERN_MODE,
ctrl->val);
break;
+ case V4L2_CID_LINK_FREQ:
+ /*
+ * Link frequency index is used at PLL configuration time,
+ * nothing to do here.
+ */
+ ret = 0;
+ break;
default:
dev_err(&sensor->i2c_client->dev,
"Unsupported control %x\n", ctrl->id);
@@ -611,6 +622,10 @@ static int ar0521_init_controls(struct ar0521_dev *sensor)
ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, 0,
65535, 1, 360);
+ v4l2_ctrl_new_int_menu(hdl, ops, V4L2_CID_LINK_FREQ,
+ ARRAY_SIZE(ar0521_link_frequencies) - 1,
+ 0, ar0521_link_frequencies);
+
ctrls->test_pattern = v4l2_ctrl_new_std_menu_items(hdl, ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(test_pattern_menu) - 1,
--
2.37.3
