A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 19:51:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

HSI: omap_ssi_core: remove pm_runtime_get_sync call from tasklet

Browse source 
We may not call pm_runtime_get_sync() from tasklet, since
it can block once pm_runtime_irq_safe is removed for omap-ssi.

Since irq can should only be created for a running device,
we assume, that the device is already running and use non-
synchronous API instead.

Signed-off-by: Sebastian Reichel <[email protected]>
Tested-by: Pavel Machek <[email protected]>
This commit is contained in:
Sebastian Reichel 2016-06-17 21:01:36 +02:00
commit 927d3f8f73
1 changed files with 7 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/hsi/controllers/omap_ssi_core.c
View file

@ -255,7 +255,13 @@ static void ssi_gdd_tasklet(unsigned long dev)
unsigned int lch;
u32 status_reg;
pm_runtime_get_sync(ssi->device.parent);
pm_runtime_get(ssi->device.parent);
if (!pm_runtime_active(ssi->device.parent)) {
dev_warn(ssi->device.parent, "ssi_gdd_tasklet called without runtime PM!\n");
pm_runtime_put(ssi->device.parent);
return;
}
status_reg = readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG);
for (lch = 0; lch < SSI_MAX_GDD_LCH; lch++) {