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authorJie Yang <yang.jie@intel.com>2015-02-05 22:56:48 +0800
committerMark Brown <broonie@kernel.org>2015-02-05 18:05:28 +0000
commitcd311dd123f5ae5c6da71bdfa9a379a694eb9917 (patch)
treeb0b86dcdd990d64371879399d1f282672454eb28 /sound
parentc41cda1dbe50816d839c32271007c7b832d4d14a (diff)
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ASoC: Intel: add a status for runtime suspend/resume
For runtime suspend/resume, it is some different with suspend/resume, e.g. codec power supply won't be switch off, codec jack detection still working(to wake up system from Jack event), won't call call snd_soc_suspend/resume, etc. So here, we add a platform PM status, HSW_PM_STATE_RTD3, to make the status more clear, when in idle, it will enter this status, to transfer from HSW_PM_STATE_RTD3 to HSW_PM_STATE_D3, we will do those extra jobs, and vice versa for resuming. Signed-off-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/intel/sst-haswell-pcm.c70
1 files changed, 36 insertions, 34 deletions
diff --git a/sound/soc/intel/sst-haswell-pcm.c b/sound/soc/intel/sst-haswell-pcm.c
index ad7f4a51e138..78fa01be57f2 100644
--- a/sound/soc/intel/sst-haswell-pcm.c
+++ b/sound/soc/intel/sst-haswell-pcm.c
@@ -119,8 +119,9 @@ struct hsw_pcm_data {
};
enum hsw_pm_state {
- HSW_PM_STATE_D3 = 0,
- HSW_PM_STATE_D0 = 1,
+ HSW_PM_STATE_D0 = 0,
+ HSW_PM_STATE_RTD3 = 1,
+ HSW_PM_STATE_D3 = 2,
};
/* private data for the driver */
@@ -1035,12 +1036,12 @@ static int hsw_pcm_runtime_suspend(struct device *dev)
struct hsw_priv_data *pdata = dev_get_drvdata(dev);
struct sst_hsw *hsw = pdata->hsw;
- if (pdata->pm_state == HSW_PM_STATE_D3)
+ if (pdata->pm_state >= HSW_PM_STATE_RTD3)
return 0;
sst_hsw_dsp_runtime_suspend(hsw);
sst_hsw_dsp_runtime_sleep(hsw);
- pdata->pm_state = HSW_PM_STATE_D3;
+ pdata->pm_state = HSW_PM_STATE_RTD3;
return 0;
}
@@ -1051,7 +1052,7 @@ static int hsw_pcm_runtime_resume(struct device *dev)
struct sst_hsw *hsw = pdata->hsw;
int ret;
- if (pdata->pm_state == HSW_PM_STATE_D0)
+ if (pdata->pm_state != HSW_PM_STATE_RTD3)
return 0;
ret = sst_hsw_dsp_load(hsw);
@@ -1091,7 +1092,7 @@ static void hsw_pcm_complete(struct device *dev)
struct hsw_pcm_data *pcm_data;
int i, err;
- if (pdata->pm_state == HSW_PM_STATE_D0)
+ if (pdata->pm_state != HSW_PM_STATE_D3)
return;
err = sst_hsw_dsp_load(hsw);
@@ -1139,41 +1140,42 @@ static int hsw_pcm_prepare(struct device *dev)
if (pdata->pm_state == HSW_PM_STATE_D3)
return 0;
- /* suspend all active streams */
- for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
- pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
+ else if (pdata->pm_state == HSW_PM_STATE_D0) {
+ /* suspend all active streams */
+ for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
+ pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
+
+ if (!pcm_data->substream)
+ continue;
+ dev_dbg(dev, "suspending pcm %d\n", i);
+ snd_pcm_suspend_all(pcm_data->hsw_pcm);
+
+ /* We need to wait until the DSP FW stops the streams */
+ msleep(2);
+ }
- if (!pcm_data->substream)
- continue;
- dev_dbg(dev, "suspending pcm %d\n", i);
- snd_pcm_suspend_all(pcm_data->hsw_pcm);
+ /* preserve persistent memory */
+ for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
+ pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
+
+ if (!pcm_data->substream)
+ continue;
- /* We need to wait until the DSP FW stops the streams */
- msleep(2);
+ dev_dbg(dev, "saving context pcm %d\n", i);
+ err = sst_module_runtime_save(pcm_data->runtime,
+ &pcm_data->context);
+ if (err < 0)
+ dev_err(dev, "failed to save context for PCM %d\n", i);
+ }
+ /* enter D3 state and stall */
+ sst_hsw_dsp_runtime_suspend(hsw);
+ /* put the DSP to sleep */
+ sst_hsw_dsp_runtime_sleep(hsw);
}
snd_soc_suspend(pdata->soc_card->dev);
snd_soc_poweroff(pdata->soc_card->dev);
- /* enter D3 state and stall */
- sst_hsw_dsp_runtime_suspend(hsw);
-
- /* preserve persistent memory */
- for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
- pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
-
- if (!pcm_data->substream)
- continue;
-
- dev_dbg(dev, "saving context pcm %d\n", i);
- err = sst_module_runtime_save(pcm_data->runtime,
- &pcm_data->context);
- if (err < 0)
- dev_err(dev, "failed to save context for PCM %d\n", i);
- }
-
- /* put the DSP to sleep */
- sst_hsw_dsp_runtime_sleep(hsw);
pdata->pm_state = HSW_PM_STATE_D3;
return 0;