shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-08 20:07:46 +09:00
Code Issues Packages Projects Releases Wiki Activity

soc: rockchip: power-domain: Add support to ignore on/off

Browse Source 
Change-Id: I96c3ae8ae53b9ae95f6f896363b761798a534821
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Finley Xiao
2018-02-05 21:23:15 +08:00
committed by Tao Huang
parent ce842d4e62
commit 743525f3c9
1 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/soc/rockchip/pm_domains.c
View File

@@ -74,6 +74,7 @@ struct rockchip_pm_domain {
u32 *qos_save_regs[MAX_QOS_REGS_NUM];
int num_clks;
struct clk_bulk_data *clks;
bool is_ignore_pwr;
};
struct rockchip_pmu {
@@ -401,6 +402,9 @@ static int rockchip_pd_power_on(struct generic_pm_domain *domain)
{
struct rockchip_pm_domain *pd = to_rockchip_pd(domain);
if (pd->is_ignore_pwr)
return 0;
return rockchip_pd_power(pd, true);
}
@@ -408,6 +412,9 @@ static int rockchip_pd_power_off(struct generic_pm_domain *domain)
{
struct rockchip_pm_domain *pd = to_rockchip_pd(domain);
if (pd->is_ignore_pwr)
return 0;
return rockchip_pd_power(pd, false);
}
@@ -486,6 +493,8 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
pd->info = pd_info;
pd->pmu = pmu;
if (!pd_info->pwr_mask)
pd->is_ignore_pwr = true;
pd->num_clks = of_clk_get_parent_count(node);
if (pd->num_clks > 0) {
@@ -637,6 +646,7 @@ static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
{
struct device_node *np;
struct generic_pm_domain *child_domain, *parent_domain;
struct rockchip_pm_domain *child_pd, *parent_pd;
int error;
for_each_child_of_node(parent, np) {
@@ -677,6 +687,17 @@ static int rockchip_pm_add_subdomain(struct rockchip_pmu *pmu,
parent_domain->name, child_domain->name);
}
/*
* If child_pd doesn't do idle request or power on/off,
* parent_pd may fail to do power on/off, so if parent_pd
* need to power on/off, child_pd can't ignore to do idle
* request and power on/off.
*/
child_pd = to_rockchip_pd(child_domain);
parent_pd = to_rockchip_pd(parent_domain);
if (!parent_pd->is_ignore_pwr)
child_pd->is_ignore_pwr = false;
rockchip_pm_add_subdomain(pmu, np);
}