From: 黄涛 <huangtao@rock-chips.com>
Date: Wed, 11 Jun 2014 04:05:20 +0000 (+0800)
Subject: ARM: rockchip: rk3288: power down GPU domain by default
X-Git-Tag: firefly_0821_release~5152
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=875c39be53ac090fd52c410081e99d2ea17873b9;p=firefly-linux-kernel-4.4.55.git

ARM: rockchip: rk3288: power down GPU domain by default

vdd_gpu may power off when boot, but pmu do not know.
So make pmu power off GPU power domain by default.
---

diff --git a/arch/arm/mach-rockchip/rk3288.c b/arch/arm/mach-rockchip/rk3288.c
index 8232c3ce494c..5d26864e2885 100644
--- a/arch/arm/mach-rockchip/rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288.c
@@ -157,6 +157,10 @@ static void __init rk3288_dt_map_io(void)
 	writel_relaxed(24, RK_PMU_VIRT + RK3288_PMU_GPU_PWRDWN_CNT);
 	writel_relaxed(24, RK_PMU_VIRT + RK3288_PMU_GPU_PWRUP_CNT);
 
+	/* power down GPU domain by default */
+	v = readl_relaxed(RK_PMU_VIRT + RK3288_PMU_PWRDN_CON);
+	writel_relaxed(v | BIT(9), RK_PMU_VIRT + RK3288_PMU_PWRDN_CON);
+
 	rk3288_boot_mode_init();
 }