From: Jeeja KP Date: Fri, 9 Oct 2015 08:01:49 +0000 (+0100) Subject: ASoC: Intel: Skylake: Verify the status bit before handling interrupt X-Git-Tag: KARO-TX6UL-2015-11-03~79^2~7^2~6^3~15 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=def656fe22abb4fbf174a982dcef1d40274ddb11;p=karo-tx-linux.git ASoC: Intel: Skylake: Verify the status bit before handling interrupt Like we have in legacy mode HDA driver, we need to check the status bit and handle interrupt only when it is not zero or all bits set. We typically see the status as all 1's when controller resumes from suspend, So add the check here as well and don't handle for these cases. Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index 194bd0036454..1bfb7f63b572 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -262,6 +262,11 @@ irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id) val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPIS); ctx->intr_status = val; + if (val == 0xffffffff) { + spin_unlock(&ctx->spinlock); + return IRQ_NONE; + } + if (val & SKL_ADSPIS_IPC) { skl_ipc_int_disable(ctx); result = IRQ_WAKE_THREAD;