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authorCezary Rojewski <cezary.rojewski@intel.com>2020-10-12 12:32:20 +0200
committerMark Brown <broonie@kernel.org>2020-10-14 20:29:55 +0100
commit1d159edf19542793851a04202e5b0dd548a9415c (patch)
treed5e4b547191860cad1ea691262bf8824ba886ac6 /sound
parent1849a3872f035494639201fdefb394425233647b (diff)
downloadlinux-1d159edf19542793851a04202e5b0dd548a9415c.tar.bz2
ASoC: Intel: catpt: Wake up device before configuring SSP port
catpt_dai_pcm_new() invoked during new PCM runtime creation configures SSP by sending IPC to DSP firmware. For that to succeed device needs to be up and running. While components default probing behavior - snd_soc_catpt causing machine board module to load just after it - needs no changes, machine board's module may be unloaded and re-loaded at a different time e.g.: when catpt is already asleep. Wake device explicitly in catpt_dai_pcm_new() to ensure communication is established before sending any IPCs, enabling those advanced scenarios in the process. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20201012103221.30759-1-cezary.rojewski@intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/intel/catpt/pcm.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/intel/catpt/pcm.c b/sound/soc/intel/catpt/pcm.c
index f78018c857b8..ba653ebea7d1 100644
--- a/sound/soc/intel/catpt/pcm.c
+++ b/sound/soc/intel/catpt/pcm.c
@@ -667,7 +667,17 @@ static int catpt_dai_pcm_new(struct snd_soc_pcm_runtime *rtm,
break;
}
+ /* see if this is a new configuration */
+ if (!memcmp(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt)))
+ return 0;
+
+ pm_runtime_get_sync(cdev->dev);
+
ret = catpt_ipc_set_device_format(cdev, &devfmt);
+
+ pm_runtime_mark_last_busy(cdev->dev);
+ pm_runtime_put_autosuspend(cdev->dev);
+
if (ret)
return CATPT_IPC_ERROR(ret);