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Commit 9a8e1cb0 authored by Shirish S's avatar Shirish S Committed by Inki Dae
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drm/exynos: restore core HDMI settings 



In DVI mode the video preamble and Guard band should
be disabled whereas it should be applied in HDMI mode,
the re-applying of preamble and guard band was missing,
which resulted in display failures when switched to HDMI
mode from DVI mode.
This patch ensures the setting is applied in HDMI mode.

Signed-off-by: default avatarShirish S <s.shirish@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent c3b35af8

drivers/gpu/drm/exynos/exynos_hdmi.c

+2 −0
Original line number Diff line number Diff line
@@ -1354,6 +1354,8 @@ static void hdmi_conf_init(struct hdmi_context *hdata) 
	/* choose HDMI mode */

	hdmi_reg_writemask(hdata, HDMI_MODE_SEL,

		HDMI_MODE_HDMI_EN, HDMI_MODE_MASK);

	/* Apply Video preable and Guard band in HDMI mode only */

	hdmi_reg_writeb(hdata, HDMI_CON_2, 0);

	/* disable bluescreen */

	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);