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Commit 69f88877 authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Inki Dae
Browse files

drm/exynos/hdmi: add core reset code 



To ensure HDMI-PHY reprogramming will not affect
HDMI the latter should be reset.

Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 5dd45e2c

drivers/gpu/drm/exynos/exynos_hdmi.c

+4 −0
Original line number Diff line number Diff line
@@ -1659,6 +1659,10 @@ static void hdmi_mode_apply(struct hdmi_context *hdata) 


static void hdmiphy_conf_reset(struct hdmi_context *hdata)

{

	hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, 0, 1);

	usleep_range(10000, 12000);

	hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, ~0, 1);

	usleep_range(10000, 12000);

	hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);

	usleep_range(10000, 12000);

	hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT);