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Commit cd75705a authored by Ajay Singh Parmar's avatar Ajay Singh Parmar
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msm: mdss: hdmi: fall back to legacy block when CEA block is bad 



In case of CEA extension block is not correct or corrupted, fall
back to block 0 to read the resolutions supported.

Change-Id: I2b63ff1f918b3ece89ab35eb4a64d4ac96aaeabe
Signed-off-by: default avatarAjay Singh Parmar <aparmar@codeaurora.org>
parent 876f9283

drivers/video/msm/mdss/mdss_hdmi_edid.c

+5 −4
Original line number Diff line number Diff line
@@ -1228,6 +1228,7 @@ static void hdmi_edid_get_display_mode(struct hdmi_edid_ctrl *edid_ctrl, 
	const u8 *svd = NULL;

	u32 has60hz_mode = false;

	u32 has50hz_mode = false;

	bool read_block0_res = false;

	struct hdmi_edid_sink_data *sink_data = NULL;



	if (!edid_ctrl || !data_buf) {
@@ -1242,9 +1243,9 @@ static void hdmi_edid_get_display_mode(struct hdmi_edid_ctrl *edid_ctrl, 
			VIDEO_DATA_BLOCK, &len) : NULL;



	if (num_of_cea_blocks && (len == 0 || len > MAX_DATA_BLOCK_SIZE)) {

		DEV_DBG("%s: No/Invalid Video Data Block\n",

			__func__);

		return;

		DEV_DBG("%s: fall back to block 0 res\n", __func__);

		svd = NULL;

		read_block0_res = true;

	}



	sink_data = &edid_ctrl->sink_data;
@@ -1288,7 +1289,7 @@ static void hdmi_edid_get_display_mode(struct hdmi_edid_ctrl *edid_ctrl, 
			if (video_format == HDMI_VFRMT_640x480p60_4_3)

				has480p = true;

		}

	} else if (!num_of_cea_blocks) {

	} else if (!num_of_cea_blocks || read_block0_res) {

		/* Detailed timing descriptors */

		u32 desc_offset = 0;

		/*