Messages in this thread Patch in this message | | | From | Armin Wolf <> | Subject | [PATCH v3 3/4] hwmon: (sch56xx-common) Replace msleep() with usleep_range() | Date | Mon, 31 Jan 2022 22:19:34 +0100 |
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msleep(1) will often sleep more than 20ms, slowing down sensor and watchdog reads/writes. Use usleep_range() as recommended in timers-howto.rst to fix that.
Tested on a Fujitsu Esprimo P720.
Signed-off-by: Armin Wolf <W_Armin@gmx.de> --- drivers/hwmon/sch56xx-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c index 0172aa16dc0c..82602b74c7ed 100644 --- a/drivers/hwmon/sch56xx-common.c +++ b/drivers/hwmon/sch56xx-common.c @@ -139,7 +139,7 @@ static int sch56xx_send_cmd(u16 addr, u8 cmd, u16 reg, u8 v) /* EM Interface Polling "Algorithm" */ for (i = 0; i < max_busy_polls + max_lazy_polls; i++) { if (i >= max_busy_polls) - msleep(1); + usleep_range(1000, 2000); /* Read Interrupt source Register */ val = inb(addr + 8); /* Write Clear the interrupt source bits */ -- 2.30.2
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