diff mbox series

[1/5] ASoC: amd: ps: refactor acp device configuration read logic

Message ID 20240214104014.1144668-1-Vijendar.Mukunda@amd.com
State New
Headers
Series [1/5] ASoC: amd: ps: refactor acp device configuration read logic |

Commit Message

Mukunda,Vijendar Feb. 14, 2024, 10:40 a.m. UTC 
  Refactor acp device configuration read logic and use common function
to scan SoundWire devices.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/Kconfig     |  17 ++++
 sound/soc/amd/ps/acp63.h  |  11 +++
 sound/soc/amd/ps/pci-ps.c | 176 +++++++++++---------------------------
 3 files changed, 78 insertions(+), 126 deletions(-)

Comments

Mark Brown Feb. 21, 2024, 12:48 a.m. UTC | #1 
On Wed, 14 Feb 2024 16:10:01 +0530, Vijendar Mukunda wrote:
> Refactor acp device configuration read logic and use common function
> to scan SoundWire devices.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/5] ASoC: amd: ps: refactor acp device configuration read logic
      commit: 0386d765f27a1fd3ed2ed6388a07e26d9659936d
[2/5] ASoC: amd: ps: refactor acp child platform device creation code
      commit: eaf825037d6df89811d43391be920bf6ad731463
[3/5] ASoC: amd: ps: remove acp_reset flag
      commit: 3c697ced399cac295c34c9611f05d04f4c951aa9
[4/5] ASoC: amd: ps: fix for acp pme wake for soundwire configuration
      commit: c76f3b1f9b9ae20f8c944bb01c395329d525a917
[5/5] ASoC: amd: ps: add machine select and register code
      commit: bbf3e6145ea09cf346ce09146b0b98415095f170

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark
diff mbox series

Patch

diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
index 273688c05317..fa74635cee08 100644
--- a/sound/soc/amd/Kconfig
+++ b/sound/soc/amd/Kconfig
@@ -132,9 +132,26 @@  config SND_SOC_AMD_RPL_ACP6x
           Say m if you have such a device.
           If unsure select "N".
 
+config SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
+	tristate
+	select SOUNDWIRE_AMD if SND_SOC_AMD_SOUNDWIRE != n
+	select SND_AMD_SOUNDWIRE_ACPI if ACPI
+
+config SND_SOC_AMD_SOUNDWIRE
+	tristate "Support for SoundWire based AMD platforms"
+	default SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
+	depends on SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
+	depends on ACPI && SOUNDWIRE
+	depends on !(SOUNDWIRE=m && SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE=y)
+	help
+	  This adds support for SoundWire for AMD platforms.
+	  Say Y if you want to enable SoundWire links with SOF.
+	  If unsure select "N".
+
 config SND_SOC_AMD_PS
         tristate "AMD Audio Coprocessor-v6.3 Pink Sardine support"
 	select SND_AMD_ACP_CONFIG
+	select SND_SOC_AMD_SOUNDWIRE_LINK_BASELINE
         depends on X86 && PCI && ACPI
         help
           This option enables Audio Coprocessor i.e ACP v6.3 support on
diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h
index 8b853b8d0219..123b9ade69d4 100644
--- a/sound/soc/amd/ps/acp63.h
+++ b/sound/soc/amd/ps/acp63.h
@@ -5,6 +5,7 @@ 
  * Copyright (C) 2022, 2023 Advanced Micro Devices, Inc. All rights reserved.
  */
 
+#include <linux/soundwire/sdw_amd.h>
 #include <sound/acp63_chip_offset_byte.h>
 
 #define ACP_DEVICE_ID 0x15E2
@@ -263,6 +264,11 @@  struct sdw_dma_ring_buf_reg {
  * @sdw0_dev_index: SoundWire Manager-0 platform device index
  * @sdw1_dev_index: SoundWire Manager-1 platform device index
  * @sdw_dma_dev_index: SoundWire DMA controller platform device index
+ * @info: SoundWire AMD information found in ACPI tables
+ * @is_sdw_dev: flag set to true when any SoundWire manager instances are available
+ * @is_pdm_dev: flag set to true when ACP PDM controller exists
+ * @is_pdm_config: flat set to true when PDM configuration is selected from BIOS
+ * @is_sdw_config: flag set to true when SDW configuration is selected from BIOS
  * @sdw0-dma_intr_stat: DMA interrupt status array for SoundWire manager-SW0 instance
  * @sdw_dma_intr_stat: DMA interrupt status array for SoundWire manager-SW1 instance
  * @acp_reset: flag set to true when bus reset is applied across all
@@ -282,6 +288,11 @@  struct acp63_dev_data {
 	u16 sdw0_dev_index;
 	u16 sdw1_dev_index;
 	u16 sdw_dma_dev_index;
+	struct sdw_amd_acpi_info info;
+	bool is_sdw_dev;
+	bool is_pdm_dev;
+	bool is_pdm_config;
+	bool is_sdw_config;
 	u16 sdw0_dma_intr_stat[ACP63_SDW0_DMA_MAX_STREAMS];
 	u16 sdw1_dma_intr_stat[ACP63_SDW1_DMA_MAX_STREAMS];
 	bool acp_reset;
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index 5927eef04170..c97e418a88ce 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -237,122 +237,51 @@  static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
 		return IRQ_NONE;
 }
 
-static int sdw_amd_scan_controller(struct device *dev)
+#if IS_ENABLED(CONFIG_SND_SOC_AMD_SOUNDWIRE)
+static int acp_scan_sdw_devices(struct device *dev, u64 addr)
 {
+	struct acpi_device *sdw_dev;
 	struct acp63_dev_data *acp_data;
-	struct fwnode_handle *link;
-	char name[32];
-	u32 sdw_manager_bitmap;
-	u8 count = 0;
-	u32 acp_sdw_power_mode = 0;
-	int index;
-	int ret;
 
 	acp_data = dev_get_drvdata(dev);
-	/*
-	 * Current implementation is based on MIPI DisCo 2.0 spec.
-	 * Found controller, find links supported.
-	 */
-	ret = fwnode_property_read_u32_array((acp_data->sdw_fw_node), "mipi-sdw-manager-list",
-					     &sdw_manager_bitmap, 1);
-
-	if (ret) {
-		dev_dbg(dev, "Failed to read mipi-sdw-manager-list: %d\n", ret);
-		return -EINVAL;
-	}
-	count = hweight32(sdw_manager_bitmap);
-	/* Check count is within bounds */
-	if (count > AMD_SDW_MAX_MANAGERS) {
-		dev_err(dev, "Manager count %d exceeds max %d\n", count, AMD_SDW_MAX_MANAGERS);
-		return -EINVAL;
-	}
+	if (!addr)
+		return -ENODEV;
 
-	if (!count) {
-		dev_dbg(dev, "No SoundWire Managers detected\n");
-		return -EINVAL;
-	}
-	dev_dbg(dev, "ACPI reports %d SoundWire Manager devices\n", count);
-	acp_data->sdw_manager_count = count;
-	for (index = 0; index < count; index++) {
-		scnprintf(name, sizeof(name), "mipi-sdw-link-%d-subproperties", index);
-		link = fwnode_get_named_child_node(acp_data->sdw_fw_node, name);
-		if (!link) {
-			dev_err(dev, "Manager node %s not found\n", name);
-			return -EIO;
-		}
+	sdw_dev = acpi_find_child_device(ACPI_COMPANION(dev), addr, 0);
+	if (!sdw_dev)
+		return -ENODEV;
 
-		ret = fwnode_property_read_u32(link, "amd-sdw-power-mode", &acp_sdw_power_mode);
-		if (ret)
-			return ret;
-		/*
-		 * when SoundWire configuration is selected from acp pin config,
-		 * based on manager instances count, acp init/de-init sequence should be
-		 * executed as part of PM ops only when Bus reset is applied for the active
-		 * SoundWire manager instances.
-		 */
-		if (acp_sdw_power_mode != AMD_SDW_POWER_OFF_MODE) {
-			acp_data->acp_reset = false;
-			return 0;
-		}
-	}
+	acp_data->info.handle = sdw_dev->handle;
+	acp_data->info.count = AMD_SDW_MAX_MANAGERS;
+	return amd_sdw_scan_controller(&acp_data->info);
+}
+#else
+static int acp_scan_sdw_devices(struct device *dev, u64 addr)
+{
 	return 0;
 }
+#endif
 
-static int get_acp63_device_config(u32 config, struct pci_dev *pci, struct acp63_dev_data *acp_data)
+static int get_acp63_device_config(struct pci_dev *pci, struct acp63_dev_data *acp_data)
 {
-	struct acpi_device *dmic_dev;
-	struct acpi_device *sdw_dev;
+	struct acpi_device *pdm_dev;
 	const union acpi_object *obj;
+	u32 config;
 	bool is_dmic_dev = false;
 	bool is_sdw_dev = false;
 	int ret;
 
-	dmic_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_DMIC_ADDR, 0);
-	if (dmic_dev) {
-		/* is_dmic_dev flag will be set when ACP PDM controller device exists */
-		if (!acpi_dev_get_property(dmic_dev, "acp-audio-device-type",
-					   ACPI_TYPE_INTEGER, &obj) &&
-					   obj->integer.value == ACP_DMIC_DEV)
-			is_dmic_dev = true;
-	}
-
-	sdw_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_SDW_ADDR, 0);
-	if (sdw_dev) {
-		acp_data->sdw_fw_node = acpi_fwnode_handle(sdw_dev);
-		ret = sdw_amd_scan_controller(&pci->dev);
-		/* is_sdw_dev flag will be set when SoundWire Manager device exists */
-		if (!ret)
-			is_sdw_dev = true;
-	}
-	if (!is_dmic_dev && !is_sdw_dev)
-		return -ENODEV;
-	dev_dbg(&pci->dev, "Audio Mode %d\n", config);
+	config = readl(acp_data->acp63_base + ACP_PIN_CONFIG);
 	switch (config) {
 	case ACP_CONFIG_4:
 	case ACP_CONFIG_5:
 	case ACP_CONFIG_10:
 	case ACP_CONFIG_11:
-		if (is_dmic_dev) {
-			acp_data->pdev_config = ACP63_PDM_DEV_CONFIG;
-			acp_data->pdev_count = ACP63_PDM_MODE_DEVS;
-		}
+		acp_data->is_pdm_config = true;
 		break;
 	case ACP_CONFIG_2:
 	case ACP_CONFIG_3:
-		if (is_sdw_dev) {
-			switch (acp_data->sdw_manager_count) {
-			case 1:
-				acp_data->pdev_config = ACP63_SDW_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_MODE_DEVS;
-				break;
-			case 2:
-				acp_data->pdev_config = ACP63_SDW_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_SDW1_MODE_DEVS;
-				break;
-			default:
-				return -EINVAL;
-			}
-		}
+		acp_data->is_sdw_config = true;
 		break;
 	case ACP_CONFIG_6:
 	case ACP_CONFIG_7:
@@ -360,40 +289,36 @@  static int get_acp63_device_config(u32 config, struct pci_dev *pci, struct acp63
 	case ACP_CONFIG_8:
 	case ACP_CONFIG_13:
 	case ACP_CONFIG_14:
-		if (is_dmic_dev && is_sdw_dev) {
-			switch (acp_data->sdw_manager_count) {
-			case 1:
-				acp_data->pdev_config = ACP63_SDW_PDM_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_PDM_MODE_DEVS;
-				break;
-			case 2:
-				acp_data->pdev_config = ACP63_SDW_PDM_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_SDW1_PDM_MODE_DEVS;
-				break;
-			default:
-				return -EINVAL;
-			}
-		} else if (is_dmic_dev) {
-			acp_data->pdev_config = ACP63_PDM_DEV_CONFIG;
-			acp_data->pdev_count = ACP63_PDM_MODE_DEVS;
-		} else if (is_sdw_dev) {
-			switch (acp_data->sdw_manager_count) {
-			case 1:
-				acp_data->pdev_config = ACP63_SDW_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_MODE_DEVS;
-				break;
-			case 2:
-				acp_data->pdev_config = ACP63_SDW_DEV_CONFIG;
-				acp_data->pdev_count = ACP63_SDW0_SDW1_MODE_DEVS;
-				break;
-			default:
-				return -EINVAL;
-			}
-		}
+		acp_data->is_pdm_config = true;
+		acp_data->is_sdw_config = true;
 		break;
 	default:
 		break;
 	}
+
+	if (acp_data->is_pdm_config) {
+		pdm_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_DMIC_ADDR, 0);
+		if (pdm_dev) {
+			/* is_dmic_dev flag will be set when ACP PDM controller device exists */
+			if (!acpi_dev_get_property(pdm_dev, "acp-audio-device-type",
+						   ACPI_TYPE_INTEGER, &obj) &&
+						   obj->integer.value == ACP_DMIC_DEV)
+				is_dmic_dev = true;
+		}
+	}
+
+	if (acp_data->is_sdw_config) {
+		ret = acp_scan_sdw_devices(&pci->dev, ACP63_SDW_ADDR);
+		if (!ret && acp_data->info.link_mask)
+			is_sdw_dev = true;
+	}
+
+	acp_data->is_pdm_dev = is_dmic_dev;
+	acp_data->is_sdw_dev = is_sdw_dev;
+	if (!is_dmic_dev && !is_sdw_dev) {
+		dev_dbg(&pci->dev, "No PDM or SoundWire manager devices found\n");
+		return -ENODEV;
+	}
 	return 0;
 }
 
@@ -576,7 +501,6 @@  static int snd_acp63_probe(struct pci_dev *pci,
 	struct acp63_dev_data *adata;
 	u32 addr;
 	u32 irqflags, flag;
-	int val;
 	int ret;
 
 	irqflags = IRQF_SHARED;
@@ -637,8 +561,7 @@  static int snd_acp63_probe(struct pci_dev *pci,
 		dev_err(&pci->dev, "ACP PCI IRQ request failed\n");
 		goto de_init;
 	}
-	val = readl(adata->acp63_base + ACP_PIN_CONFIG);
-	ret = get_acp63_device_config(val, pci, adata);
+	ret = get_acp63_device_config(pci, adata);
 	/* ACP PCI driver probe should be continued even PDM or SoundWire Devices are not found */
 	if (ret) {
 		dev_dbg(&pci->dev, "get acp device config failed:%d\n", ret);
@@ -740,4 +663,5 @@  module_pci_driver(ps_acp63_driver);
 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
 MODULE_AUTHOR("Syed.SabaKareem@amd.com");
 MODULE_DESCRIPTION("AMD ACP Pink Sardine PCI driver");
+MODULE_IMPORT_NS(SND_AMD_SOUNDWIRE_ACPI);
 MODULE_LICENSE("GPL v2");