Messages in this thread Patch in this message |  | | From | Krzysztof Hałasa <> | Subject | [PATCH] TDA1997x: report -ENOLINK after disconnecting HDMI source | Date | Mon, 26 Jul 2021 12:49:30 +0200 |
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The TD1997x chip retains vper, hper and hsper register values when the HDMI source is disconnected. Use a different means of checking if the link is still valid.
Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c index 0b516a45a135..36a7b89afb08 100644 --- a/drivers/media/i2c/tda1997x.c +++ b/drivers/media/i2c/tda1997x.c @@ -1107,7 +1107,8 @@ tda1997x_detect_std(struct tda1997x_state *state, hper = io_read16(sd, REG_H_PER) & MASK_HPER; hsper = io_read16(sd, REG_HS_WIDTH) & MASK_HSWIDTH; v4l2_dbg(1, debug, sd, "Signal Timings: %u/%u/%u\n", vper, hper, hsper); - if (!vper || !hper || !hsper) + + if (!state->input_detect[0] && !state->input_detect[1]) return -ENOLINK; for (i = 0; v4l2_dv_timings_presets[i].bt.width; i++) {
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