Commit c048ed42 authored Oct 17, 2017 by Narender Ankam Committed by Gerrit - the friendly Code Review server Oct 26, 2017

msm: mdss: hdmi: reset hdmi max supported TMDS clock



In current HDMI driver, SVDs and DTDs derived from EDID
of a DS HDMI sink are checked for supportness based
on previous connection's max TMDS clock.
Always reset the max TMDS clock supported by source
before reading EDID from DS HDMI device.

Change-Id: If5f58562f186634b1ed066fdebfc9fa6b55c6e8a
Signed-off-by: Narender Ankam <nankam@codeaurora.org>

parent 3bbdd813

drivers/video/fbdev/msm/mdss_hdmi_tx.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -2225,6 +2225,9 @@ static int hdmi_tx_read_sink_info(struct hdmi_tx_ctrl *hdmi_ctrl)
		DSS_REG_W_ND(io, HDMI_DDC_ARBITRATION,
		DSS_REG_R(io, HDMI_DDC_ARBITRATION) & ~(BIT(4)));

		/* Set/Reset HDMI max TMDS clock supported by source */
		hdmi_edid_set_max_pclk_rate(data, hdmi_ctrl->max_pclk_khz);

		if (!hdmi_ctrl->custom_edid && !hdmi_ctrl->sim_mode) {
		hdmi_ddc_config(&hdmi_ctrl->ddc_ctrl);