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ASoC: SOF: pm: Fix prepare callback behavior for OF usecase 

On i.MX platforms PM is not managed via ACPI although CONFIG_ACPI
can be set. So, in order to correctly set the system target state
we introduce a flag for platforms that require to use acpi target
states.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200921105038.2909899-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Daniel Baluta 2020-09-21 13:50:38 +03:00 committed by Mark Brown
parent 6410887222
commit 43437d0417
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 18 additions and 5 deletions
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2
include/sound/sof.h
View File

@ -66,6 +66,8 @@ struct sof_dev_desc {
/* alternate list of machines using this configuration */
struct snd_soc_acpi_mach *alt_machines;
bool use_acpi_target_states;
/* Platform resource indexes in BAR / ACPI resources. */
/* Must set to -1 if not used - add new items to end */
int resindex_lpe_base;

12
sound/soc/sof/pm.c
View File

@ -305,15 +305,17 @@ EXPORT_SYMBOL(snd_sof_suspend);
int snd_sof_prepare(struct device *dev)
{
struct snd_sof_dev *sdev = dev_get_drvdata(dev);
const struct sof_dev_desc *desc = sdev->pdata->desc;
/* will suspend to S3 by default */
sdev->system_suspend_target = SOF_SUSPEND_S3;
if (!desc->use_acpi_target_states)
return 0;
#if defined(CONFIG_ACPI)
if (acpi_target_system_state() == ACPI_STATE_S0)
sdev->system_suspend_target = SOF_SUSPEND_S0IX;
else
sdev->system_suspend_target = SOF_SUSPEND_S3;
#else
/* will suspend to S3 by default */
sdev->system_suspend_target = SOF_SUSPEND_S3;
#endif
return 0;

9
sound/soc/sof/sof-pci-dev.c
View File

@ -77,6 +77,7 @@ static const struct dmi_system_id community_key_platforms[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
static const struct sof_dev_desc bxt_desc = {
.machines = snd_soc_acpi_intel_bxt_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -94,6 +95,7 @@ static const struct sof_dev_desc bxt_desc = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
static const struct sof_dev_desc glk_desc = {
.machines = snd_soc_acpi_intel_glk_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -139,6 +141,7 @@ static const struct sof_dev_desc tng_desc = {
static const struct sof_dev_desc cnl_desc = {
.machines = snd_soc_acpi_intel_cnl_machines,
.alt_machines = snd_soc_acpi_intel_cnl_sdw_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -157,6 +160,7 @@ static const struct sof_dev_desc cnl_desc = {
static const struct sof_dev_desc cfl_desc = {
.machines = snd_soc_acpi_intel_cfl_machines,
.alt_machines = snd_soc_acpi_intel_cfl_sdw_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -175,6 +179,7 @@ static const struct sof_dev_desc cfl_desc = {
static const struct sof_dev_desc cml_desc = {
.machines = snd_soc_acpi_intel_cml_machines,
.alt_machines = snd_soc_acpi_intel_cml_sdw_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -193,6 +198,7 @@ static const struct sof_dev_desc cml_desc = {
static const struct sof_dev_desc icl_desc = {
.machines = snd_soc_acpi_intel_icl_machines,
.alt_machines = snd_soc_acpi_intel_icl_sdw_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -211,6 +217,7 @@ static const struct sof_dev_desc icl_desc = {
static const struct sof_dev_desc tgl_desc = {
.machines = snd_soc_acpi_intel_tgl_machines,
.alt_machines = snd_soc_acpi_intel_tgl_sdw_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -244,6 +251,7 @@ static const struct sof_dev_desc tglh_desc = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
static const struct sof_dev_desc ehl_desc = {
.machines = snd_soc_acpi_intel_ehl_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
@ -261,6 +269,7 @@ static const struct sof_dev_desc ehl_desc = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
static const struct sof_dev_desc jsl_desc = {
.machines = snd_soc_acpi_intel_jsl_machines,
.use_acpi_target_states = true,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,