diff options
| -rw-r--r-- | drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c index e4eb531c12aa..17ef86f1ba4f 100644 --- a/drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c +++ b/drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_bridge.c @@ -351,6 +351,7 @@ static int _sde_hdmi_bridge_setup_scrambler(struct hdmi *hdmi, scrambler_on = true; tmds_clock_ratio = 1; } else { + tmds_clock_ratio = 0; scrambler_on = connector->supports_scramble; } @@ -396,6 +397,14 @@ static int _sde_hdmi_bridge_setup_scrambler(struct hdmi *hdmi, rc = _sde_hdmi_bridge_setup_ddc_timers(hdmi, HDMI_TX_DDC_TIMER_SCRAMBLER_STATUS, timeout_hsync); } else { + /* reset tmds clock ratio */ + rc = sde_hdmi_scdc_write(hdmi, + HDMI_TX_SCDC_TMDS_BIT_CLOCK_RATIO_UPDATE, + tmds_clock_ratio); + /* scdc write can fail if sink doesn't support SCDC */ + if (rc && connector->scdc_present) + SDE_ERROR("SCDC present, TMDS clk ratio err\n"); + sde_hdmi_scdc_write(hdmi, HDMI_TX_SCDC_SCRAMBLING_ENABLE, 0x0); reg_val = hdmi_read(hdmi, REG_HDMI_CTRL); reg_val &= ~BIT(28); /* Unset SCRAMBLER_EN bit */ |