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thermal: sun8i: Use bitmap API instead of open code

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The bitmap_* API is the standard way to access data in the bitfield.
So convert irq_ack to return an unsigned long, and make things to use
bitmap API.

Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201109114624.23035-1-frank@allwinnertech.com
This commit is contained in:
Yangtao Li 2020-11-09 19:46:24 +08:00 committed by Daniel Lezcano
parent ef63b043ac
commit e01aac5353
1 changed files with 17 additions and 16 deletions
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33
drivers/thermal/sun8i_thermal.c
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@ -8,6 +8,7 @@
* Based on the work of Josef Gajdusek <atx@atx.name>
*/
#include <linux/bitmap.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/interrupt.h>
@ -74,7 +75,7 @@ struct ths_thermal_chip {
int (*calibrate)(struct ths_device *tmdev,
u16 *caldata, int callen);
int (*init)(struct ths_device *tmdev);
int (*irq_ack)(struct ths_device *tmdev);
unsigned long (*irq_ack)(struct ths_device *tmdev);
int (*calc_temp)(struct ths_device *tmdev,
int id, int reg);
};
@ -146,9 +147,10 @@ static const struct regmap_config config = {
.max_register = 0xfc,
};
static int sun8i_h3_irq_ack(struct ths_device *tmdev)
static unsigned long sun8i_h3_irq_ack(struct ths_device *tmdev)
{
int i, state, ret = 0;
unsigned long irq_bitmap = 0;
int i, state;
regmap_read(tmdev->regmap, SUN8I_THS_IS, &state);
@ -156,16 +158,17 @@ static int sun8i_h3_irq_ack(struct ths_device *tmdev)
if (state & SUN8I_THS_DATA_IRQ_STS(i)) {
regmap_write(tmdev->regmap, SUN8I_THS_IS,
SUN8I_THS_DATA_IRQ_STS(i));
ret |= BIT(i);
bitmap_set(&irq_bitmap, i, 1);
}
}
return ret;
return irq_bitmap;
}
static int sun50i_h6_irq_ack(struct ths_device *tmdev)
static unsigned long sun50i_h6_irq_ack(struct ths_device *tmdev)
{
int i, state, ret = 0;
unsigned long irq_bitmap = 0;
int i, state;
regmap_read(tmdev->regmap, SUN50I_H6_THS_DIS, &state);
@ -173,24 +176,22 @@ static int sun50i_h6_irq_ack(struct ths_device *tmdev)
if (state & SUN50I_H6_THS_DATA_IRQ_STS(i)) {
regmap_write(tmdev->regmap, SUN50I_H6_THS_DIS,
SUN50I_H6_THS_DATA_IRQ_STS(i));
ret |= BIT(i);
bitmap_set(&irq_bitmap, i, 1);
}
}
return ret;
return irq_bitmap;
}
static irqreturn_t sun8i_irq_thread(int irq, void *data)
{
struct ths_device *tmdev = data;
int i, state;
unsigned long irq_bitmap = tmdev->chip->irq_ack(tmdev);
int i;
state = tmdev->chip->irq_ack(tmdev);
for (i = 0; i < tmdev->chip->sensor_num; i++) {
if (state & BIT(i))
thermal_zone_device_update(tmdev->sensor[i].tzd,
THERMAL_EVENT_UNSPECIFIED);
for_each_set_bit(i, &irq_bitmap, tmdev->chip->sensor_num) {
thermal_zone_device_update(tmdev->sensor[i].tzd,
THERMAL_EVENT_UNSPECIFIED);
}
return IRQ_HANDLED;