mirros/rockchip-kernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: rockchip: hdmirx: enhance the stability of reading resolution

Browse Source 
sometimes the signal is locked, but the resolution is not stable.

Signed-off-by: Dingxian Wen <shawn.wen@rock-chips.com>
Change-Id: I4088690c58159dbdc6a36a1f3fe1db4dada4bfbb
This commit is contained in:
Dingxian Wen
2022-09-24 18:06:22 +08:00
committed by Tao Huang
parent 247fa56c8d
commit 797ce37d8c
1 changed files with 14 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/media/platform/rockchip/hdmirx/rk_hdmirx.c
View File

@@ -881,11 +881,21 @@ static int hdmirx_try_to_get_timings(struct rk_hdmirx_dev *hdmirx_dev,
int i, cnt = 0, fail_cnt = 0, ret = 0;
bool from_dma = false;
struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
u32 last_w, last_h;
struct v4l2_bt_timings *bt = &timings->bt;
last_w = 0;
last_h = 0;
hdmirx_set_negative_pol(hdmirx_dev, false);
for (i = 0; i < try_cnt; i++) {
ret = hdmirx_get_detected_timings(hdmirx_dev, timings, from_dma);
if (ret) {
if ((last_w == 0) && (last_h == 0)) {
last_w = bt->width;
last_h = bt->height;
}
if (ret || (last_w != bt->width) || (last_h != bt->height)) {
cnt = 0;
fail_cnt++;
if (fail_cnt > 3) {
@@ -896,9 +906,11 @@ static int hdmirx_try_to_get_timings(struct rk_hdmirx_dev *hdmirx_dev,
cnt++;
}
if (cnt >= 5)
if (cnt >= 8)
break;
last_w = bt->width;
last_h = bt->height;
usleep_range(10*1000, 10*1100);
}