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Commit ed1b331e authored by Narender Ankam's avatar Narender Ankam
Browse files

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: default avatarNarender Ankam <nankam@codeaurora.org>
parent c5e6e5ce

drivers/video/fbdev/msm/mdss_hdmi_edid.c

+8 −5
Original line number Diff line number Diff line
@@ -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];