shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 12:17:12 +09:00
Code Issues Packages Projects Releases Wiki Activity

drivers: firmware: psci: notify regulators on system-suspend

Browse Source 
On some systems regulators need to do special actions on suspend/resume.
These get set from the generic regulator_suspend_prepare and
regulator_suspend_finish functions so these should be called from the
psci suspend ops as well.

Change-Id: I6fbf7b39ceae936ed5bd9df6719ccd3cd360840f
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Shengfei xu <xsf@rock-chips.com>
This commit is contained in:
Heiko Stuebner
2016-03-16 12:18:43 +01:00
committed by Gerrit Code Review
parent 374068a81a
commit 84c243bed6
1 changed files with 17 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/firmware/psci.c
View File

@@ -21,6 +21,7 @@
#include <linux/psci.h>
#include <linux/reboot.h>
#include <linux/suspend.h>
#include <linux/regulator/machine.h>
#include <uapi/linux/psci.h>
@@ -236,9 +237,25 @@ static int psci_system_suspend_enter(suspend_state_t state)
return cpu_suspend(0, psci_system_suspend);
}
static int psci_system_suspend_prepare(void)
{
return regulator_suspend_prepare(PM_SUSPEND_MEM);
}
static void psci_system_suspend_finish(void)
{
int ret;
ret = regulator_suspend_finish();
if (ret < 0)
pr_warn("regulator_suspend_finish failed (%d)\n", ret);
}
static const struct platform_suspend_ops psci_suspend_ops = {
.valid = suspend_valid_only_mem,
.enter = psci_system_suspend_enter,
.prepare = psci_system_suspend_prepare,
.finish = psci_system_suspend_finish,
};
static void __init psci_init_system_suspend(void)