diff options
| author | Haojian Zhuang <haojian.zhuang@linaro.org> | 2013-03-14 19:59:54 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@linaro.org> | 2013-03-14 20:04:44 +0800 |
| commit | dd7229d3e5c7bff0a9501632755c5b6b209381ff (patch) | |
| tree | 5aebebe94704cfd90d3431f40c0ff50194688adb /drivers/gpio | |
| parent | 34d55f032da4e193dc732cb2fbca89eead8d8402 (diff) | |
mfd: hi6421: use spin lock
Avoid to use mutex lock in rmw operation. Use spin lock with irq
disabled instead. Since irq handler also accesses pmic register,
we should avoid resource conflict between irq context and kernel
context.
And append spin lock operation in pmic read/write too.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Diffstat (limited to 'drivers/gpio')
0 files changed, 0 insertions, 0 deletions