[U-Boot] [PATCH 3/8] EXYNOS5: support display port phy control function

[Donghwa Lee <dh09.lee@samsung.com>]

This patch support display port phy control function.

Signed-off-by: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 arch/arm/cpu/armv7/exynos/power.c        |   21 +++++++++++++++++++++
 arch/arm/include/asm/arch-exynos/power.h |    5 +++++
 2 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c
index 4116781..d4bce6d 100644
--- a/arch/arm/cpu/armv7/exynos/power.c
+++ b/arch/arm/cpu/armv7/exynos/power.c
@@ -74,3 +74,24 @@ void set_usbhost_phy_ctrl(unsigned int enable)
 	if (cpu_is_exynos5())
 		exynos5_set_usbhost_phy_ctrl(enable);
 }
+
+static void exynos5_dp_phy_control(unsigned int enable)
+{
+	unsigned int cfg;
+	struct exynos5_power *power =
+	    (struct exynos5_power *)samsung_get_base_power();
+
+	cfg = readl(&power->dptx_phy_control);
+	if (enable)
+		cfg |= EXYNOS_DP_PHY_ENABLE;
+	else
+		cfg &= ~EXYNOS_DP_PHY_ENABLE;
+
+	writel(cfg, &power->dptx_phy_control);
+}
+
+void set_dp_phy_ctrl(unsigned int enable)
+{
+	if (cpu_is_exynos5())
+		exynos5_dp_phy_control(enable);
+}
diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
index e5467e2..d2fdb59 100644
--- a/arch/arm/include/asm/arch-exynos/power.h
+++ b/arch/arm/include/asm/arch-exynos/power.h
@@ -859,4 +859,9 @@ void set_usbhost_phy_ctrl(unsigned int enable);
 
 #define POWER_USB_HOST_PHY_CTRL_EN		(1 << 0)
 #define POWER_USB_HOST_PHY_CTRL_DISABLE		(0 << 0)
+
+void set_dp_phy_ctrl(unsigned int enable);
+
+#define EXYNOS_DP_PHY_ENABLE		(1 << 0)
+
 #endif
-- 
1.7.4.1