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drivers: thermal: pe_sensor: enable pe interrupt as wake up interrupt

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The policy engine interrupt disables during apps power collapse. But
there is a chance that still other subsystem SDPM voting can be
changed and that could cause policy engine violation. It leads to
non handling of interrupt and mitigation during apps power collapse.

Enable pe interrupt as wake up interrupt.

Re-order PE interrupt clear and handling mitigation sequence in
pe interrupt handler so that there is no chance to miss interrupt
post handling of previous interrupt.

Change-Id: I2c7d3014617acc99be30d3ae727736d5695c15e1
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
This commit is contained in:
Manaf Meethalavalappu Pallikunhi 2021-02-25 22:26:00 +05:30
commit 3b354ef078
1 changed files with 6 additions and 3 deletions
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9
drivers/thermal/qcom/policy_engine.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
@ -80,6 +80,9 @@ static irqreturn_t pe_handle_irq(int irq, void *data)
struct pe_sensor_data *pe_sens = (struct pe_sensor_data *)data;
int val = 0, ret = 0;
writel_relaxed(PE_INTR_CLEAR, pe_sens->regmap + PE_INT_STATUS_OFFSET);
writel_relaxed(PE_STS_CLEAR, pe_sens->regmap + PE_INT_STATUS1_OFFSET);
ret = fetch_mitigation_table_idx(pe_sens, &val);
if (ret)
return IRQ_HANDLED;
@ -92,8 +95,6 @@ static irqreturn_t pe_handle_irq(int irq, void *data)
of_thermal_handle_trip_temp(pe_sens->dev, pe_sens->tz_dev, val);
} else
mutex_unlock(&pe_sens->mutex);
writel_relaxed(PE_INTR_CLEAR, pe_sens->regmap + PE_INT_STATUS_OFFSET);
writel_relaxed(PE_STS_CLEAR, pe_sens->regmap + PE_INT_STATUS1_OFFSET);
return IRQ_HANDLED;
}
@ -155,6 +156,8 @@ static int pe_sens_device_probe(struct platform_device *pdev)
pe_sens->tz_dev);
return ret;
}
enable_irq_wake(pe_sens->irq_num);
dev_dbg(dev, "PE sensor register success\n");
return 0;