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vpu: add vpu clk control in early suspend [1/1]

Browse Source 
PD#SWPL-204510

Problem:
early suspend need reduce vpu clk

Solution:
early suspend reduce vpu clk

Verify:
t6d

Change-Id: I2c4dedf9ebbeee02643ce94c2469e3cab3b4519f
Signed-off-by: hai.cao <hai.cao@amlogic.com>
This commit is contained in:
hai.cao
2025-03-10 11:23:56 +08:00
committed by Yanmei Yang
parent 7a45af816b
commit dba1cdcbe8
1 changed files with 36 additions and 0 deletions
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drivers/media/common/vpu/vpu.c
+36
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@@ -56,6 +56,7 @@ static struct vpu_dev_s *vpu_dev_local[VPU_DEV_MAX];
static unsigned int vpu_dev_num;
static u32 vpu_clk_level_saved;
static u32 vapb_clk_level_saved;
static struct device *vpu_device;
struct vpu_conf_s vpu_conf = {
.data = NULL,
@@ -3030,6 +3031,17 @@ static void vpu_early_suspend(struct early_suspend *h)
{
if (!vpu_conf.data)
return;
if (vpu_conf.data->chip_type >= VPU_CHIP_SC2) {
unsigned int clk;
/* down vpu clk when suspend */
vpu_clk_level_saved = vpu_conf.clk_level;
vapb_clk_level_saved = clk_get_rate(vpu_conf.vapb_clk);
clk = vpu_clk_suspend.freq;
vapb_clk_switch(0);
set_vpu_clk(clk);
}
VPUPR("early_suspend clk: %uHz(0x%x)\n",
vpu_clk_get(), (vpu_clk_read(vpu_conf.data->vpu_clk_reg)));
@@ -3037,8 +3049,31 @@ static void vpu_early_suspend(struct early_suspend *h)
static void vpu_late_resume(struct early_suspend *h)
{
unsigned int clk;
int ret;
if (!vpu_conf.data)
return;
ret = vpu_power_init_check();
if (!vpu_device)
return;
vpu_clktree_init(vpu_device);
if (ret)
vpu_power_init();
if (!vpu_conf.data)
return;
if (vpu_conf.data->chip_type >= VPU_CHIP_SC2) {
clk = vpu_clk_level_saved;
vapb_clk_switch(1);
set_vpu_clk(clk);
} else {
mutex_lock(&vpu_clk_mutex);
set_vpu_clk(vpu_conf.clk_level);
mutex_unlock(&vpu_clk_mutex);
}
VPUPR("late_resume clk: %uHz(0x%x)\n",
vpu_clk_get(), (vpu_clk_read(vpu_conf.data->vpu_clk_reg)));
@@ -3085,6 +3120,7 @@ static int vpu_probe(struct platform_device *pdev)
vpu_debug_print_flag = 0;
vpu_device = &pdev->dev;
match = of_match_device(vpu_of_table, &pdev->dev);
if (!match) {
VPUERR("%s: no match table\n", __func__);