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 <s...@kernel.org>
---
drivers/hsi/controllers/omap_ssi_core.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/hsi/controllers/omap_ssi_core.c
b/drivers/hsi/controllers/omap_ssi_core.c
index 618db80577c3..79562ce65579 100644
--- a/drivers/hsi/controllers/omap_ssi_core.c
+++ b/drivers/hsi/controllers/omap_ssi_core.c
@@ -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++) {
--
2.8.1
