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update the conctrl of gpu' clk

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This commit is contained in:
杜坤明
2011-03-10 14:13:33 +08:00
parent 0208ee3eda
commit ec3f59ef1c
2 changed files with 41 additions and 23 deletions
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18
drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_driver.c
View File

@@ -526,6 +526,8 @@ static int drv_init(void)
"Entering drv_init\n");
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
printk("%s : gpu clk_enable... ", __func__);
// clk_gpu_ahb
clk_hclk_gpu = clk_get(NULL, "hclk_gpu");
if(!IS_ERR(clk_hclk_gpu)) clk_enable(clk_hclk_gpu);
@@ -566,22 +568,32 @@ static int drv_init(void)
return -EAGAIN;
}
clk_enable(clk_gpu);
printk("done!\n");
// enable ram clock gate
writel(readl(RK29_GRF_BASE+0xc0) & ~0x100000, RK29_GRF_BASE+0xc0);
#if 1
printk("%s : gpu reset... ", __func__);
mdelay(2);
printk("%s : gpu reset... ", __func__);
cru_set_soft_reset(SOFT_RST_GPU, true);
cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, true);
mdelay(1);
cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, false);
cru_set_soft_reset(SOFT_RST_GPU, false);
mdelay(2);
printk("done!\n");
mdelay(2);
#endif
printk("%s : gpu clk_disable... ", __func__);
mdelay(1);
clk_disable(clk_gpu);
clk_disable(clk_aclk_gpu);
clk_disable(clk_get(NULL, "aclk_ddr_gpu"));
clk_disable(clk_hclk_gpu);
mdelay(1);
printk("done!\n");
#endif
if (showArgs)

46
drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c
View File

@@ -5932,35 +5932,41 @@ gckOS_SetGPUPower(
struct clk * clk_aclk_ddr_gpu = clk_get(NULL, "aclk_ddr_gpu");
struct clk * clk_hclk_gpu = clk_get(NULL, "hclk_gpu");
static int lastpower = 0;
static int lastclock = 0;
//printk("---------- gckOS_SetGPUPower Clock=%d Power=%d \n", Clock, Power);
if(Clock) {
printk("gpu: clk_enable... ");
clk_enable(clk_hclk_gpu);
clk_enable(clk_aclk_gpu);
clk_enable(clk_aclk_ddr_gpu);
clk_enable(clk_gpu);
printk("done!\n");
} else {
printk("gpu: clk_disable... ");
clk_disable(clk_gpu);
clk_disable(clk_aclk_gpu);
clk_disable(clk_aclk_ddr_gpu);
clk_disable(clk_hclk_gpu);
printk("done!\n");
if(lastclock!=Clock)
{
if(Clock) {
printk("gpu: clk_enable... ");
clk_enable(clk_hclk_gpu);
clk_enable(clk_aclk_gpu);
clk_enable(clk_aclk_ddr_gpu);
clk_enable(clk_gpu);
printk("done!\n");
} else {
printk("gpu: clk_disable... ");
clk_disable(clk_gpu);
clk_disable(clk_aclk_gpu);
clk_disable(clk_aclk_ddr_gpu);
clk_disable(clk_hclk_gpu);
printk("done!\n");
}
}
lastclock = Clock;
if(Power) {
if(lastpower != Power) {
if(lastpower!=Power)
{
if(Power) {
printk("gpu: power on... ");
pmu_set_power_domain(PD_GPU, true);
printk("done!\n");
} else {
//printk("gpu: power off... ");
//pmu_set_power_domain(PD_GPU, false);
//printk("done!\n");
}
} else {
//printk("gpu: power off... ");
//pmu_set_power_domain(PD_GPU, false);
//printk("done!\n");
}
lastpower = Power;