From: 杜坤明 <dkm@rockchip.com>
Date: Tue, 1 Mar 2011 07:27:55 +0000 (+0800)
Subject: add soft reset of gpu
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b405028e629b1f6c4b6c9bfec63abc77cd80218e;p=firefly-linux-kernel-4.4.55.git

add soft reset of gpu
---

diff --git a/drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c b/drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c
old mode 100644
new mode 100755
index e6e62a41d6b9..3e22d03bfe5a
--- a/drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c
+++ b/drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c
@@ -37,6 +37,7 @@
 
 #include <linux/delay.h>
 #include <mach/pmu.h>
+#include <mach/cru.h>
 
 #if !USE_NEW_LINUX_SIGNAL
 #define USER_SIGNAL_TABLE_LEN_INIT  64
@@ -5960,10 +5961,18 @@ gckOS_SetGPUPower(
         mdelay(10);
         local_irq_restore(flags);
         printk("---------- end gpu power_domain on!\n");
+
+        /* disable gpu' reset bit */
+        cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, false);
+        cru_set_soft_reset(SOFT_RST_GPU, false);
     } else {
         //printk("---------- start gpu power_domain off...\n");
         //pmu_set_power_domain(PD_GPU, false);
         //printk("---------- end gpu power_domain off!\n");
+
+        /* enable gpu' reset bit */
+        cru_set_soft_reset(SOFT_RST_GPU, true);
+        cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, true);
     }
 
 #endif