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ASoC: SOF: Intel: byt: Add PM callbacks

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Add the PM callbacks for BYT/CHT platforms.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200526203640.25980-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ranjani Sridharan 2020-05-26 15:36:33 -05:00 • committed by Mark Brown
parent 0d71a5cf69
commit ddcccd543f
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GPG key ID: 24D68B725D5487D0
1 changed files with 36 additions and 0 deletions
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36
sound/soc/sof/intel/byt.c
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@ -428,6 +428,34 @@ static void byt_set_mach_params(const struct snd_soc_acpi_mach *mach,
mach_params->platform = dev_name(dev); mach_params->platform = dev_name(dev);
} }
static void byt_reset_dsp_disable_int(struct snd_sof_dev *sdev)
{
/* Disable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x3);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x3);
/* Put DSP into reset, set reset vector */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL);
}
static int byt_suspend(struct snd_sof_dev *sdev, u32 target_state)
{
byt_reset_dsp_disable_int(sdev);
return 0;
}
static int byt_resume(struct snd_sof_dev *sdev)
{
/* Enable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
return 0;
}
/* Baytrail DAIs */ /* Baytrail DAIs */
static struct snd_soc_dai_driver byt_dai[] = { static struct snd_soc_dai_driver byt_dai[] = {
{ {
@ -832,6 +860,10 @@ const struct snd_sof_dsp_ops sof_byt_ops = {
/*Firmware loading */ /*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy, .load_firmware = snd_sof_load_firmware_memcpy,
/* PM */
.suspend = byt_suspend,
.resume = byt_resume,
/* DAI drivers */ /* DAI drivers */
.drv = byt_dai, .drv = byt_dai,
.num_drv = 3, /* we have only 3 SSPs on byt*/ .num_drv = 3, /* we have only 3 SSPs on byt*/
@ -906,6 +938,10 @@ const struct snd_sof_dsp_ops sof_cht_ops = {
/*Firmware loading */ /*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy, .load_firmware = snd_sof_load_firmware_memcpy,
/* PM */
.suspend = byt_suspend,
.resume = byt_resume,
/* DAI drivers */ /* DAI drivers */
.drv = byt_dai, .drv = byt_dai,
/* all 6 SSPs may be available for cherrytrail */ /* all 6 SSPs may be available for cherrytrail */