diff options
Diffstat (limited to 'arch/arm/mach-mx6/pm.c')
| -rw-r--r-- | arch/arm/mach-mx6/pm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-mx6/pm.c b/arch/arm/mach-mx6/pm.c index c19d895139cf..f55d37d4b59a 100644 --- a/arch/arm/mach-mx6/pm.c +++ b/arch/arm/mach-mx6/pm.c @@ -242,8 +242,14 @@ static void gpu_power_up(void) udelay(10); } +/* + * For safety, DO NOT define ENABLE_DISP_POWER_GATING for MX6SL EVK. + * Otherwise will meet PxP processing timeout When run EPDC unit test. + * The cause is under investigation. + */ static void disp_power_down(void) { +#ifdef ENABLE_DISP_POWER_GATING if (cpu_is_mx6sl()) { __raw_writel(0xFFFFFFFF, gpc_base + GPC_PGC_DISP_PUPSCR_OFFSET); __raw_writel(0xFFFFFFFF, gpc_base + GPC_PGC_DISP_PDNSCR_OFFSET); @@ -251,15 +257,18 @@ static void disp_power_down(void) __raw_writel(0x1, gpc_base + GPC_PGC_DISP_PGCR_OFFSET); __raw_writel(0x10, gpc_base + GPC_CNTR_OFFSET); } +#endif } static void disp_power_up(void) { +#ifdef ENABLE_DISP_POWER_GATING if (cpu_is_mx6sl()) { __raw_writel(0x0, gpc_base + GPC_PGC_DISP_PGCR_OFFSET); __raw_writel(0x20, gpc_base + GPC_CNTR_OFFSET); __raw_writel(0x1, gpc_base + GPC_PGC_DISP_SR_OFFSET); } +#endif } static void mx6_suspend_store(void) |