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-rw-r--r--drivers/media/i2c/adv7842.c12
-rw-r--r--include/media/adv7842.h3
2 files changed, 12 insertions, 3 deletions
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 209b1753b701..e04fe3f80383 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -2693,9 +2693,15 @@ static int adv7842_core_init(struct v4l2_subdev *sd)
/* disable I2C access to internal EDID ram from HDMI DDC ports */
rep_write_and_or(sd, 0x77, 0xf3, 0x00);
- hdmi_write(sd, 0x69, 0xa3); /* HPA manual */
- /* HPA disable on port A and B */
- io_write_and_or(sd, 0x20, 0xcf, 0x00);
+ if (pdata->hpa_auto) {
+ /* HPA auto, HPA 0.5s after Edid set and Cable detect */
+ hdmi_write(sd, 0x69, 0x5c);
+ } else {
+ /* HPA manual */
+ hdmi_write(sd, 0x69, 0xa3);
+ /* HPA disable on port A and B */
+ io_write_and_or(sd, 0x20, 0xcf, 0x00);
+ }
/* LLC */
io_write(sd, 0x19, 0x80 | pdata->llc_dll_phase);
diff --git a/include/media/adv7842.h b/include/media/adv7842.h
index 39322091e8b0..924cbb8d004a 100644
--- a/include/media/adv7842.h
+++ b/include/media/adv7842.h
@@ -220,6 +220,9 @@ struct adv7842_platform_data {
unsigned sdp_free_run_cbar_en:1;
unsigned sdp_free_run_force:1;
+ /* HPA manual (0) or auto (1), affects HDMI register 0x69 */
+ unsigned hpa_auto:1;
+
struct adv7842_sdp_csc_coeff sdp_csc_coeff;
struct adv7842_sdp_io_sync_adjustment sdp_io_sync_625;