diff options
author | Yangtao Li | 2020-11-09 19:46:24 +0800 |
---|---|---|
committer | Daniel Lezcano | 2020-11-12 11:05:12 +0100 |
commit | e01aac535353e013f9a5c9675232458906b895da (patch) | |
tree | 35cc167d71b7f60c9dbf612d6e5a33a594f5e926 /drivers/thermal | |
parent | ef63b043ac8645d2540d7b50dd3e09c53db3d504 (diff) |
thermal: sun8i: Use bitmap API instead of open code
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
Diffstat (limited to 'drivers/thermal')
-rw-r--r-- | drivers/thermal/sun8i_thermal.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index f8b13071a6f4..8c80bd06dd9f 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -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; - - state = tmdev->chip->irq_ack(tmdev); + unsigned long irq_bitmap = tmdev->chip->irq_ack(tmdev); + int i; - 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; |