A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-14 08:36:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

clk: qcom: gdsc-regulator: Add support to skip GDSC disable

Browse source 
Add check to skip gdsc disable when disable call comes before
the gdsc enable. In case if the gdsc is enabled by entity external
to HLOS then skip disable call.

Change-Id: I14ba8a24fb4403a1805cba23967bb22a82ac6e7f
Signed-off-by: Naveen Yadav <naveenky@codeaurora.org>
This commit is contained in:
Naveen Yadav 2020-04-10 14:59:01 +05:30
commit a1cd991f30
1 changed files with 14 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

14
drivers/clk/qcom/gdsc-regulator.c
View file

@ -74,6 +74,7 @@ struct gdsc {
int reset_count;
int root_clk_idx;
u32 gds_timeout;
bool skip_disable_before_enable;
};
enum gdscr_status {
@ -313,6 +314,7 @@ static int gdsc_enable(struct regulator_dev *rdev)
}
sc->is_gdsc_enabled = true;
sc->skip_disable_before_enable = false;
return ret;
}
@ -323,6 +325,16 @@ static int gdsc_disable(struct regulator_dev *rdev)
uint32_t regval;
int i, ret = 0, parent_enabled;
/*
* Protect GDSC against late_init disabling when the GDSC is enabled
* by an entity outside external to HLOS.
*/
if (sc->skip_disable_before_enable) {
dev_dbg(&rdev->dev, "Skip Disabling: %s\n", sc->rdesc.name);
sc->skip_disable_before_enable = false;
return 0;
}
if (rdev->supply) {
regulator_lock(rdev->supply->rdev);
parent_enabled = regulator_is_enabled(rdev->supply);
@ -606,6 +618,8 @@ static int gdsc_parse_dt_data(struct gdsc *sc, struct device *dev,
"qcom,no-status-check-on-disable");
sc->retain_ff_enable = of_property_read_bool(dev->of_node,
"qcom,retain-regs");
sc->skip_disable_before_enable = of_property_read_bool(dev->of_node,
"qcom,skip-disable-before-sw-enable");
if (of_find_property(dev->of_node, "qcom,collapse-vote", NULL)) {
ret = of_property_count_u32_elems(dev->of_node,