From: Chris Morgan macromorgan@hotmail.com
Enable the PD_VO power domain before driver access on the rk3568 SoC.
Signed-off-by: Chris Morgan macromorgan@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; }