Add code for invoking Soundwire manager helper functions when SoundWire configuration is selected.

Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/sof/amd/Kconfig | 17 +++++++ sound/soc/sof/amd/acp.c | 99 ++++++++++++++++++++++++++++++++++++++- sound/soc/sof/amd/acp.h | 15 +++++- 3 files changed, 129 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/amd/Kconfig b/sound/soc/sof/amd/Kconfig index 19c5e27a193f..1cea1d75130c 100644 --- a/sound/soc/sof/amd/Kconfig +++ b/sound/soc/sof/amd/Kconfig @@ -60,6 +60,23 @@ config SND_SOC_SOF_ACP_PROBES This option is not user-selectable but automatically handled by 'select' statements at a higher level

+config SND_SOC_SOF_AMD_SOUNDWIRE_LINK_BASELINE + tristate + select SOUNDWIRE_AMD if SND_SOC_SOF_AMD_SOUNDWIRE != n + select SND_AMD_SOUNDWIRE_ACPI if ACPI + +config SND_SOC_SOF_AMD_SOUNDWIRE + tristate "SOF support for SoundWire based AMD platforms" + default SND_SOC_SOF_AMD_SOUNDWIRE_LINK_BASELINE + depends on SND_SOC_SOF_AMD_SOUNDWIRE_LINK_BASELINE + depends on ACPI && SOUNDWIRE + depends on !(SOUNDWIRE=m && SND_SOC_SOF_AMD_SOUNDWIRE_LINK_BASELINE=y) + help + This adds support for SoundWire with Sound Open Firmware + for AMD platforms. + Say Y if you want to enable SoundWire links with SOF. + If unsure select "N". + config SND_SOC_SOF_AMD_ACP63 tristate "SOF support for ACP6.3 platform" depends on SND_SOC_SOF_PCI diff --git a/sound/soc/sof/amd/acp.c b/sound/soc/sof/amd/acp.c index 32a741fcb84f..f24cd6b7490f 100644 --- a/sound/soc/sof/amd/acp.c +++ b/sound/soc/sof/amd/acp.c @@ -491,6 +491,81 @@ int amd_sof_acp_resume(struct snd_sof_dev *sdev) } EXPORT_SYMBOL_NS(amd_sof_acp_resume, SND_SOC_SOF_AMD_COMMON);

+#if IS_ENABLED(CONFIG_SND_SOC_SOF_AMD_SOUNDWIRE) +static int acp_sof_scan_sdw_devices(struct snd_sof_dev *sdev, u64 addr) +{ + struct acpi_device *sdw_dev; + struct acp_dev_data *acp_data; + const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata); + + if (!addr) + return -ENODEV; + + acp_data = sdev->pdata->hw_pdata; + sdw_dev = acpi_find_child_device(ACPI_COMPANION(sdev->dev), addr, 0); + if (!sdw_dev) + return -ENODEV; + + acp_data->info.handle = sdw_dev->handle; + acp_data->info.count = desc->sdw_max_link_count; + + return amd_sdw_scan_controller(&acp_data->info); +} + +static int amd_sof_sdw_probe(struct snd_sof_dev *sdev) +{ + struct acp_dev_data *acp_data; + struct sdw_amd_res sdw_res; + int ret; + + acp_data = sdev->pdata->hw_pdata; + + memset(&sdw_res, 0, sizeof(sdw_res)); + sdw_res.addr = acp_data->addr; + sdw_res.reg_range = acp_data->reg_range; + sdw_res.handle = acp_data->info.handle; + sdw_res.parent = sdev->dev; + sdw_res.dev = sdev->dev; + sdw_res.acp_lock = &acp_data->acp_lock; + sdw_res.count = acp_data->info.count; + sdw_res.link_mask = acp_data->info.link_mask; + sdw_res.mmio_base = sdev->bar[ACP_DSP_BAR]; + + ret = sdw_amd_probe(&sdw_res, &acp_data->sdw); + if (ret) + dev_err(sdev->dev, "SoundWire probe failed\n"); + return ret; +} + +static int amd_sof_sdw_exit(struct snd_sof_dev *sdev) +{ + struct acp_dev_data *acp_data; + + acp_data = sdev->pdata->hw_pdata; + if (acp_data->sdw) + sdw_amd_exit(acp_data->sdw); + acp_data->sdw = NULL; + + return 0; +} + +#else +static int acp_sof_scan_sdw_devices(struct snd_sof_dev *sdev, u64 addr) +{ + return 0; +} + +static int amd_sof_sdw_probe(struct snd_sof_dev *sdev) +{ + return 0; +} + +static int amd_sof_sdw_exit(struct snd_sof_dev *sdev) +{ + return 0; +} +#endif + int amd_sof_acp_probe(struct snd_sof_dev *sdev) { struct pci_dev *pci = to_pci_dev(sdev->dev); @@ -527,7 +602,9 @@ int amd_sof_acp_probe(struct snd_sof_dev *sdev) }

pci_set_master(pci); - + adata->addr = addr; + adata->reg_range = chip->reg_end_addr - chip->reg_start_addr; + mutex_init(&adata->acp_lock); sdev->pdata->hw_pdata = adata; adata->smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, chip->host_bridge_id, NULL); if (!adata->smn_dev) { @@ -549,6 +626,21 @@ int amd_sof_acp_probe(struct snd_sof_dev *sdev) if (ret < 0) goto free_ipc_irq;

+ /* scan SoundWire capabilities exposed by DSDT */ + ret = acp_sof_scan_sdw_devices(sdev, chip->sdw_acpi_dev_addr); + if (ret < 0) { + dev_dbg(sdev->dev, "skipping SoundWire, not detected with ACPI scan\n"); + goto skip_soundwire; + } + ret = amd_sof_sdw_probe(sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: SoundWire probe error\n"); + free_irq(sdev->ipc_irq, sdev); + pci_dev_put(adata->smn_dev); + return ret; + } + +skip_soundwire: sdev->dsp_box.offset = 0; sdev->dsp_box.size = BOX_SIZE_512;

@@ -596,6 +688,9 @@ void amd_sof_acp_remove(struct snd_sof_dev *sdev) if (adata->smn_dev) pci_dev_put(adata->smn_dev);

+ if (adata->sdw) + amd_sof_sdw_exit(sdev); + if (sdev->ipc_irq) free_irq(sdev->ipc_irq, sdev);

@@ -607,4 +702,6 @@ void amd_sof_acp_remove(struct snd_sof_dev *sdev) EXPORT_SYMBOL_NS(amd_sof_acp_remove, SND_SOC_SOF_AMD_COMMON);

MODULE_DESCRIPTION("AMD ACP sof driver"); +MODULE_IMPORT_NS(SOUNDWIRE_AMD_INIT); +MODULE_IMPORT_NS(SND_AMD_SOUNDWIRE_ACPI); MODULE_LICENSE("Dual BSD/GPL"); diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index c645aee216fd..e88d01330ec7 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -12,7 +12,7 @@ #define __SOF_AMD_ACP_H

#include <linux/dmi.h> - +#include <linux/soundwire/sdw_amd.h> #include "../sof-priv.h" #include "../sof-audio.h"

@@ -191,6 +191,10 @@ struct sof_amd_acp_desc { u32 acp_clkmux_sel; u32 fusion_dsp_offset; u32 probe_reg_offset; + u32 reg_start_addr; + u32 reg_end_addr; + u32 sdw_max_link_count; + u64 sdw_acpi_dev_addr; };

/* Common device data struct for ACP devices */ @@ -199,6 +203,12 @@ struct acp_dev_data { const struct firmware *fw_dbin; /* DMIC device */ struct platform_device *dmic_dev; + /* mutex lock to protect ACP common registers access */ + struct mutex acp_lock; + /* ACPI information stored between scan and probe steps */ + struct sdw_amd_acpi_info info; + /* sdw context allocated by SoundWire driver */ + struct sdw_amd_ctx *sdw; unsigned int fw_bin_size; unsigned int fw_data_bin_size; unsigned int fw_sram_data_bin_size; @@ -207,6 +217,9 @@ struct acp_dev_data { const char *fw_sram_data_bin; u32 fw_bin_page_count; u32 fw_data_bin_page_count; + u32 addr; + u32 reg_range; + u32 blk_type; dma_addr_t sha_dma_addr; u8 *bin_buf; dma_addr_t dma_addr;