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drm/exynos: add support for hdmiphy power control for exynos5

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This patch adds support for controlling power of hdmi phy for
exynos5 soc. A special bit is provided in exynos5 for directly
switching of PHY while in exynos4, phy power needs to be controlled
through i2c settings. I2C configuration may affect the suspend to
resume and wake-up time requirements hence not added.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Rahul Sharma
2012-11-28 11:30:25 +05:30
committed by Inki Dae
parent 000f13083d
commit a55622570d
2 changed files with 26 additions and 0 deletions
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drivers/gpu/drm/exynos/regs-hdmi.h
+5
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@@ -176,6 +176,11 @@
#define HDMI_PHY_CMU HDMI_CTRL_BASE(0x007C)
#define HDMI_CORE_RSTOUT HDMI_CTRL_BASE(0x0080)
/* PHY Control bit definition */
/* HDMI_PHY_CON_0 */
#define HDMI_PHY_POWER_OFF_EN (1 << 0)
/* Video related registers */
#define HDMI_YMAX HDMI_CORE_BASE(0x0060)
#define HDMI_YMIN HDMI_CORE_BASE(0x0064)