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| author | Lee Jones <lee.jones@linaro.org> | 2015-10-28 12:42:30 (GMT) |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2016-01-14 08:43:58 (GMT) |
| commit | b79a980f7161ca09855cc641091d1afe4ef08dd8 (patch) | |
| tree | 0c0f998d24e362d30dd3e19a0ed9b9778b75bb6c | |
| parent | 3103d44e4509f6da8b667d185b45eb0ae0beaa85 (diff) | |
| download | linux-b79a980f7161ca09855cc641091d1afe4ef08dd8.tar.xz | |
mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(5);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
total: 0 errors, 4 warnings, 1407 lines checked
Cc: patches@opensource.wolfsonmicro.com
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | drivers/mfd/arizona-core.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 4bb4866..5319f25 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -238,7 +238,7 @@ static int arizona_poll_reg(struct arizona *arizona, if ((val & mask) == target) return 0; - msleep(1); + usleep_range(1000, 5000); } dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val); @@ -279,14 +279,14 @@ static void arizona_disable_reset(struct arizona *arizona) case WM5110: case WM8280: /* Meet requirements for minimum reset duration */ - msleep(5); + usleep_range(5000, 10000); break; default: break; } gpio_set_value_cansleep(arizona->pdata.reset, 1); - msleep(1); + usleep_range(1000, 5000); } } @@ -1132,7 +1132,7 @@ int arizona_dev_init(struct arizona *arizona) goto err_reset; } - msleep(1); + usleep_range(1000, 5000); } /* Ensure device startup is complete */ |