This patch support display port phy control function.
Signed-off-by: Donghwa Lee <dh09....@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@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
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