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>

diff --git a/sound/soc/intel/catpt/pcm.c b/sound/soc/intel/catpt/pcm.c
index f78018c..ba653eb 100644 (file)
--- 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);