[PATCH V2 4/4] board: rockchip: Enable PD_VO before driver access

[Chris Morgan]

From: Chris Morgan <macromorgan at hotmail.com>

Enable the PD_VO power domain before driver access on the rk3568 SoC.

Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
---
 arch/arm/mach-rockchip/rk3568/rk3568.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-rockchip/rk3568/rk3568.c b/arch/arm/mach-rockchip/rk3568/rk3568.c
index 1b3e40074e3..d5742b68d68 100644
--- a/arch/arm/mach-rockchip/rk3568/rk3568.c
+++ b/arch/arm/mach-rockchip/rk3568/rk3568.c
@@ -26,6 +26,8 @@
 #define PMU_BASE_ADDR		0xfdd90000
 #define PMU_NOC_AUTO_CON0	(0x70)
 #define PMU_NOC_AUTO_CON1	(0x74)
+#define PMU_PWR_GATE_SFTCON	(0xa0)
+#define PMU_PD_VO_DWN_ENA	BIT(7)
 #define EDP_PHY_GRF_BASE	0xfdcb0000
 #define EDP_PHY_GRF_CON0	(EDP_PHY_GRF_BASE + 0x00)
 #define EDP_PHY_GRF_CON10	(EDP_PHY_GRF_BASE + 0x28)
@@ -130,6 +132,10 @@ int arch_cpu_init(void)
 	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_1);
 	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_2);
 	writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_3);
+
+	/* Enable VO power domain for display */
+	writel((PMU_PD_VO_DWN_ENA << 16),
+	       PMU_BASE_ADDR + PMU_PWR_GATE_SFTCON);
 #endif
 	return 0;
 }
-- 
2.34.1