bcma: Replace mdelay with usleep_range in bcma_pmu_resources_init
After checking all possible call chains to bcma_pmu_resources_init() here, my tool finds that this function is never called in atomic context, namely never in an interrupt handler or holding a spinlock. Thus mdelay can be replaced with usleep_range to avoid busy wait. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>hifive-unleashed-5.1
parent
3142467fc1
commit
8100091d02
|
@ -203,7 +203,7 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
|
||||||
* Add some delay; allow resources to come up and settle.
|
* Add some delay; allow resources to come up and settle.
|
||||||
* Delay is required for SoC (early init).
|
* Delay is required for SoC (early init).
|
||||||
*/
|
*/
|
||||||
mdelay(2);
|
usleep_range(2000, 2500);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
|
/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
|
||||||
|
|
Loading…
Reference in New Issue