| Message ID | 1466267229-25012-12-git-send-email-sre@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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++) {
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 <sre@kernel.org> --- drivers/hsi/controllers/omap_ssi_core.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)