Merge "regulator: kryo-regulator: cap LDO voltage request during M3 enter notifier" (5a79eb4a) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/regulator/kryo-regulator.c

+14 −4

Original line number	Diff line number	Diff line
		@@ -851,7 +851,7 @@ static int kryo_regulator_retention_init(struct kryo_regulator *kvreg,

		static int kryo_regulator_lpm_prepare(struct kryo_regulator *kvreg)
		{
		int vdd_volt_uv, vdd_vlvl = 0;
		int vdd_volt_uv, bhs_volt, vdd_vlvl = 0;
		unsigned long flags;

		spin_lock_irqsave(&kvreg->slock, flags);
		@@ -875,9 +875,19 @@ static int kryo_regulator_lpm_prepare(struct kryo_regulator *kvreg)
		kvreg_debug(kvreg, "switching to BHS mode, vdd_apcc=%d uV, current LDO Vref=%d, LPM enter count=%lx\n",
		vdd_volt_uv, kvreg->volt, kvreg->lpm_enter_count);

		/* Program vdd supply minus LDO headroom as voltage */
		kryo_set_ldo_volt(kvreg, vdd_volt_uv
		- kvreg->headroom_volt);
		/*
		* Program vdd supply minus LDO headroom as voltage.
		* Cap this value to the maximum physically supported
		* LDO voltage, if necessary.
		*/
		bhs_volt = vdd_volt_uv - kvreg->headroom_volt;
		if (bhs_volt > kvreg->vref_func_max_volt) {
		kvreg_debug(kvreg, "limited to LDO output of %d uV when switching to BHS mode\n",
		kvreg->vref_func_max_volt);
		bhs_volt = kvreg->vref_func_max_volt;
		}

		kryo_set_ldo_volt(kvreg, bhs_volt);

		/* Switch Power Gate Mode */
		kryo_configure_mode(kvreg, BHS_MODE);