diff options
| -rw-r--r-- | drivers/clk/qcom/gdsc.c | 18 | ||||
| -rw-r--r-- | drivers/clk/qcom/gdsc.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c index 925d178ba675..288186cce0ae 100644 --- a/drivers/clk/qcom/gdsc.c +++ b/drivers/clk/qcom/gdsc.c @@ -56,6 +56,13 @@ static int gdsc_is_enabled(struct gdsc *sc, unsigned int reg) return !!(val & PWR_ON_MASK); } +static int gdsc_hwctrl(struct gdsc *sc, bool en) +{ + u32 val = en ? HW_CONTROL_MASK : 0; + + return regmap_update_bits(sc->regmap, sc->gdscr, HW_CONTROL_MASK, val); +} + static int gdsc_toggle_logic(struct gdsc *sc, bool en) { int ret; @@ -180,6 +187,10 @@ static int gdsc_enable(struct generic_pm_domain *domain) */ udelay(1); + /* Turn on HW trigger mode if supported */ + if (sc->flags & HW_CTRL) + return gdsc_hwctrl(sc, true); + return 0; } @@ -191,6 +202,13 @@ static int gdsc_disable(struct generic_pm_domain *domain) if (sc->pwrsts == PWRSTS_ON) return gdsc_assert_reset(sc); + /* Turn off HW trigger mode if supported */ + if (sc->flags & HW_CTRL) { + ret = gdsc_hwctrl(sc, false); + if (ret < 0) + return ret; + } + if (sc->pwrsts & PWRSTS_OFF) gdsc_clear_mem_on(sc); diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h index f011c4957527..39648348e5ec 100644 --- a/drivers/clk/qcom/gdsc.h +++ b/drivers/clk/qcom/gdsc.h @@ -52,6 +52,7 @@ struct gdsc { const u8 flags; #define VOTABLE BIT(0) #define CLAMP_IO BIT(1) +#define HW_CTRL BIT(2) struct reset_controller_dev *rcdev; unsigned int *resets; unsigned int reset_count; |