From: Ajit Kumar Pandey AjitKumar.Pandey@amd.com
Add SOF PM ops callback in renoir dsp ops to power off and on ACP IP block during system suspend and resume on Renoir platform.
Signed-off-by: Ajit Kumar Pandey AjitKumar.Pandey@amd.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/amd/acp-dsp-offset.h | 2 ++ sound/soc/sof/amd/acp.c | 36 ++++++++++++++++++++++++++++++ sound/soc/sof/amd/acp.h | 4 ++++ sound/soc/sof/amd/pci-rn.c | 4 ++++ sound/soc/sof/amd/renoir.c | 4 ++++ 5 files changed, 50 insertions(+)
diff --git a/sound/soc/sof/amd/acp-dsp-offset.h b/sound/soc/sof/amd/acp-dsp-offset.h index 40fbf11facba5..56cefd4a84fcd 100644 --- a/sound/soc/sof/amd/acp-dsp-offset.h +++ b/sound/soc/sof/amd/acp-dsp-offset.h @@ -46,12 +46,14 @@ #define ACPAXI2AXI_ATU_BASE_ADDR_GRP_8 0xC3C #define ACPAXI2AXI_ATU_CTRL 0xC40 #define ACP_SOFT_RESET 0x1000 +#define ACP_CONTROL 0x1004
#define ACP_I2S_PIN_CONFIG 0x1400
/* Registers from ACP_PGFSM block */ #define ACP_PGFSM_CONTROL 0x141C #define ACP_PGFSM_STATUS 0x1420 +#define ACP_CLKMUX_SEL 0x1424
/* Registers from ACP_INTR block */ #define ACP_EXTERNAL_INTR_ENB 0x1800 diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c index 0c272573df979..c40d2900dd36d 100644 --- a/sound/soc/sof/amd/acp.c +++ b/sound/soc/sof/amd/acp.c @@ -413,10 +413,46 @@ static int acp_init(struct snd_sof_dev *sdev) dev_err(sdev->dev, "ACP power on failed\n"); return ret; } + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_CONTROL, 0x01); /* Reset */ return acp_reset(sdev); }
+int amd_sof_acp_suspend(struct snd_sof_dev *sdev, u32 target_state) +{ + int ret; + + ret = acp_reset(sdev); + if (ret) { + dev_err(sdev->dev, "ACP Reset failed\n"); + return ret; + } + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_CONTROL, 0x00); + + return 0; +} +EXPORT_SYMBOL_NS(amd_sof_acp_suspend, SND_SOC_SOF_AMD_COMMON); + +int amd_sof_acp_resume(struct snd_sof_dev *sdev) +{ + int ret; + + ret = acp_init(sdev); + if (ret) { + dev_err(sdev->dev, "ACP Init failed\n"); + return ret; + } + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_CLKMUX_SEL, 0x03); + + ret = acp_memory_init(sdev); + + return ret; +} +EXPORT_SYMBOL_NS(amd_sof_acp_resume, SND_SOC_SOF_AMD_COMMON); + int amd_sof_acp_probe(struct snd_sof_dev *sdev) { struct pci_dev *pci = to_pci_dev(sdev->dev); diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index 291b44c54bcc2..4c42b8fd6abf1 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -216,6 +216,10 @@ int acp_sof_trace_init(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab, struct sof_ipc_dma_trace_params_ext *dtrace_params); int acp_sof_trace_release(struct snd_sof_dev *sdev);
+/* PM Callbacks */ +int amd_sof_acp_suspend(struct snd_sof_dev *sdev, u32 target_state); +int amd_sof_acp_resume(struct snd_sof_dev *sdev); + struct sof_amd_acp_desc { unsigned int host_bridge_id; }; diff --git a/sound/soc/sof/amd/pci-rn.c b/sound/soc/sof/amd/pci-rn.c index d5d9bcc2c997d..3a7fed25a2267 100644 --- a/sound/soc/sof/amd/pci-rn.c +++ b/sound/soc/sof/amd/pci-rn.c @@ -49,6 +49,7 @@ static const struct sof_amd_acp_desc renoir_chip_info = {
static const struct sof_dev_desc renoir_desc = { .machines = snd_soc_acpi_amd_sof_machines, + .use_acpi_target_states = true, .resindex_lpe_base = 0, .resindex_pcicfg_base = -1, .resindex_imr_base = -1, @@ -166,6 +167,9 @@ static struct pci_driver snd_sof_pci_amd_rn_driver = { .id_table = rn_pci_ids, .probe = acp_pci_rn_probe, .remove = acp_pci_rn_remove, + .driver = { + .pm = &sof_pci_pm, + }, }; module_pci_driver(snd_sof_pci_amd_rn_driver);
diff --git a/sound/soc/sof/amd/renoir.c b/sound/soc/sof/amd/renoir.c index 70190365328ce..9261c8bc2236d 100644 --- a/sound/soc/sof/amd/renoir.c +++ b/sound/soc/sof/amd/renoir.c @@ -173,6 +173,10 @@ struct snd_sof_dsp_ops sof_renoir_ops = { /* Trace Logger */ .trace_init = acp_sof_trace_init, .trace_release = acp_sof_trace_release, + + /* PM */ + .suspend = amd_sof_acp_suspend, + .resume = amd_sof_acp_resume, }; EXPORT_SYMBOL(sof_renoir_ops);