diff options
| author | Narender Ankam <nankam@codeaurora.org> | 2019-08-29 15:46:57 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2020-03-03 02:31:49 -0800 |
| commit | 2a20222495d3879a2f6061bd7a3f5a2e1350cfcb (patch) | |
| tree | ffc94e628e3a89690275e32f515f07f9a0b456b4 /drivers/video/fbdev | |
| parent | 46b20db2ce8fa40fb4e85fe206695d03365a12ca (diff) | |
msm: mdss: hdmi: set max tmds clock rate correctly
While parsing HDMI 1.4 VSDB or HDMI Forum VSDB, set
max tmds clock rate only if respective byte is a
non zero value.
Change-Id: I07b51156038c8b8914f6f1fc1527eaad8a99d7a1
Signed-off-by: Narender Ankam <nankam@codeaurora.org>
Signed-off-by: Ramendra Kumar <ramendra@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_hdmi_edid.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/video/fbdev/msm/mdss_hdmi_edid.c b/drivers/video/fbdev/msm/mdss_hdmi_edid.c index 409fb99cfc55..9215a766559b 100644 --- a/drivers/video/fbdev/msm/mdss_hdmi_edid.c +++ b/drivers/video/fbdev/msm/mdss_hdmi_edid.c @@ -1370,8 +1370,10 @@ static void hdmi_edid_extract_sink_caps(struct hdmi_edid_ctrl *edid_ctrl, return; /* Max TMDS clock is in multiples of 5Mhz. */ - if (len >= 7) + if (len >= 7 && vsd[7]) { edid_ctrl->sink_caps.max_pclk_in_hz = vsd[7] * 5000000; + DEV_DBG("%s: MaxTMDS=%dMHz\n", __func__, (u32)vsd[7] * 5); + } vsd = hdmi_edid_find_hfvsdb(in_buf); @@ -1384,9 +1386,13 @@ static void hdmi_edid_extract_sink_caps(struct hdmi_edid_ctrl *edid_ctrl, * the sink shall set this filed to 0. The max TMDS support * clock Rate = Max_TMDS_Character_Rates * 5Mhz. */ - if (vsd[5] != 0) + if (vsd[5] != 0) { edid_ctrl->sink_caps.max_pclk_in_hz = vsd[5] * 5000000; + DEV_DBG("%s: HF-VSDB: MaxTMDS=%dMHz\n", + __func__, (u32)vsd[5] * 5); + } + edid_ctrl->sink_caps.scdc_present = (vsd[6] & 0x80) ? true : false; edid_ctrl->sink_caps.scramble_support = @@ -1464,9 +1470,6 @@ static u32 hdmi_edid_extract_ieee_reg_id(struct hdmi_edid_ctrl *edid_ctrl, DEV_DBG("%s: EDID: VSD PhyAddr=%04x\n", __func__, ((u32)vsd[4] << 8) + (u32)vsd[5]); - if (len >= 7) - DEV_DBG("%s: MaxTMDS=%dMHz\n", __func__, (u32)vsd[7] * 5); - edid_ctrl->physical_address = ((u16)vsd[4] << 8) + (u16)vsd[5]; return ((u32)vsd[3] << 16) + ((u32)vsd[2] << 8) + (u32)vsd[1]; |