ARM: rockchip: rk3288: power up/down GPU domain wait 1us

Default wait 1ms, which block system too long.

diff --git a/arch/arm/mach-rockchip/rk3288.c b/arch/arm/mach-rockchip/rk3288.c
index bb0935cbb9c34ce43e6af9fb610734f2cebf86db..8232c3ce494c8f63ec2b0985faa198fd2922f873 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288.c
@@ -153,6 +153,10 @@ static void __init rk3288_dt_map_io(void)
        writel_relaxed(1, RK3288_TIMER7_VIRT + 0x10);
        dsb();
 
+       /* power up/down GPU domain wait 1us */
+       writel_relaxed(24, RK_PMU_VIRT + RK3288_PMU_GPU_PWRDWN_CNT);
+       writel_relaxed(24, RK_PMU_VIRT + RK3288_PMU_GPU_PWRUP_CNT);
+
        rk3288_boot_mode_init();
 }