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Commit 50bbec3b authored by Ajay Singh Parmar's avatar Ajay Singh Parmar
Browse files

msm: mdss: hdmi: reset phy on panel power on 



HDMI Tx core can be configured with multiple resolutions with
different pixel clocks. This needs PHY/PLL to be configured
with different settings. Reset PHY/PLL on every power on before
configuring new PHY settings to avoid any PLL lock issues.

Change-Id: I564305730105f3e54fbb504c20cce5b2eb9039b1
Signed-off-by: default avatarAjay Singh Parmar <aparmar@codeaurora.org>
parent 1a5da77f

drivers/video/msm/mdss/mdss_hdmi_tx.c

+8 −7
Original line number Diff line number Diff line
@@ -3346,13 +3346,8 @@ static int hdmi_tx_start(struct hdmi_tx_ctrl *hdmi_ctrl) 
		hdmi_tx_set_spd_infoframe(hdmi_ctrl);

	}



	rc = hdmi_tx_setup_scrambler(hdmi_ctrl);

	if (rc) {

		DEV_ERR("%s: Scrambler setup failed\n", __func__);

		hdmi_tx_set_mode(hdmi_ctrl, false);

		return rc;

	}

	/* todo: CEC */

	if (hdmi_tx_setup_scrambler(hdmi_ctrl))

		DEV_WARN("%s: Scrambler setup failed\n", __func__);



	DEV_INFO("%s: HDMI Core: Initialized\n", __func__);
@@ -4032,6 +4027,12 @@ static int hdmi_tx_panel_event_handler(struct mdss_panel_data *panel_data, 
		break;



	case MDSS_EVENT_RESET:

		if (hdmi_ctrl->hpd_initialized) {

			hdmi_tx_set_mode(hdmi_ctrl, false);

			hdmi_tx_phy_reset(hdmi_ctrl);

			hdmi_tx_set_mode(hdmi_ctrl, true);

		}



		if (hdmi_ctrl->panel_suspend) {

			u32 timeout;

			hdmi_ctrl->panel_suspend = false;