From: Frank Lee <frank@allwinnertech.com>
To: anarsoul@gmail.com, tiny.windzz@gmail.com, rui.zhang@intel.com,
daniel.lezcano@linaro.org, amitk@kernel.org, mripard@kernel.org,
wens@csie.org
Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Yangtao Li <frank@allwinnertech.com>
Subject: [PATCH] thermal: sun8i: Use bitmap API instead of open code
Date: Mon, 9 Nov 2020 19:43:02 +0800 [thread overview]
Message-ID: <20201109114302.22740-1-frank@allwinnertech.com> (raw)
From: Yangtao Li <frank@allwinnertech.com>
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>
---
v2:
Make irq_ack to return an unsigned long
---
drivers/thermal/sun8i_thermal.c | 33 +++++++++++++++++----------------
1 file 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;
--
2.28.0
next reply other threads:[~2020-11-09 11:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-09 11:43 Frank Lee [this message]
2020-11-09 11:45 ` [PATCH] thermal: sun8i: Use bitmap API instead of open code Frank Lee
-- strict thread matches above, loose matches on Subject: below --
2020-10-19 11:58 Frank Lee
2020-10-28 13:51 ` Maxime Ripard
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