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Date: Tue, 16 May 2023 16:05:35 +0530
From: Vijendar Mukunda <Vijendar.Mukunda@....com>
To: <--to=broonie@...nel.org>
CC: <alsa-devel@...a-project.org>, <Basavaraj.Hiregoudar@....com>,
<Sunil-kumar.Dommati@....com>, <Mastan.Katragadda@....com>,
<Arungopal.kondaveeti@....com>,
Vijendar Mukunda <Vijendar.Mukunda@....com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
"Syed Saba Kareem" <Syed.SabaKareem@....com>,
Mario Limonciello <mario.limonciello@....com>,
open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/9] ASoC: amd: ps: create platform devices based on acp config
Create platform devices for Soundwire Manager instances and
PDM controller based on ACP pin config selection
and ACPI fw handle for pink sardine platform.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
sound/soc/amd/ps/acp63.h | 43 ++++++-
sound/soc/amd/ps/pci-ps.c | 250 ++++++++++++++++++++++++++++++++++++--
2 files changed, 280 insertions(+), 13 deletions(-)
diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h
index 2f94448102d0..f27f71116598 100644
--- a/sound/soc/amd/ps/acp63.h
+++ b/sound/soc/amd/ps/acp63.h
@@ -10,7 +10,7 @@
#define ACP_DEVICE_ID 0x15E2
#define ACP63_REG_START 0x1240000
#define ACP63_REG_END 0x1250200
-#define ACP63_DEVS 3
+#define ACP63_DEVS 5
#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
@@ -55,8 +55,14 @@
#define ACP63_DMIC_ADDR 2
#define ACP63_PDM_MODE_DEVS 3
-#define ACP63_PDM_DEV_MASK 1
#define ACP_DMIC_DEV 2
+#define ACP63_SDW0_MODE_DEVS 2
+#define ACP63_SDW0_SDW1_MODE_DEVS 3
+#define ACP63_SDW0_PDM_MODE_DEVS 4
+#define ACP63_SDW0_SDW1_PDM_MODE_DEVS 5
+#define ACP63_DMIC_ADDR 2
+#define ACP63_SDW_ADDR 5
+#define AMD_SDW_MAX_MANAGERS 2
/* time in ms for acp timeout */
#define ACP_TIMEOUT 500
@@ -80,6 +86,12 @@ enum acp_config {
ACP_CONFIG_15,
};
+enum acp_pdev_mask {
+ ACP63_PDM_DEV_MASK = 1,
+ ACP63_SDW_DEV_MASK,
+ ACP63_SDW_PDM_DEV_MASK,
+};
+
struct pdm_stream_instance {
u16 num_pages;
u16 channels;
@@ -95,14 +107,41 @@ struct pdm_dev_data {
struct snd_pcm_substream *capture_stream;
};
+/**
+ * struct acp63_dev_data - acp pci driver context
+ * @acp63_base: acp mmio base
+ * @res: resource
+ * @pdev: child platform device node structures
+ * @acp_lock: used to protect acp common registers
+ * @sdw_fw_node: SoundWire controller fw node handle
+ * @pdev_mask: platform device mask
+ * @pdev_count: platform devices count
+ * @pdm_dev_index: pdm platform device index
+ * @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
+ * @is_dmic_dev: flag set to true if DMIC device exists
+ * @is_sdw_dev: flag set to true if Soundwire manager devices exists
+ * @acp_reset: flag set to true when bus reset is applied across all
+ * the active soundwire manager instances
+ */
+
struct acp63_dev_data {
void __iomem *acp63_base;
struct resource *res;
struct platform_device *pdev[ACP63_DEVS];
struct mutex acp_lock; /* protect shared registers */
+ struct fwnode_handle *sdw_fw_node;
u16 pdev_mask;
u16 pdev_count;
u16 pdm_dev_index;
+ u8 sdw_manager_count;
+ u16 sdw0_dev_index;
+ u16 sdw1_dev_index;
+ u16 sdw_dma_dev_index;
+ bool is_dmic_dev;
+ bool is_sdw_dev;
+ bool acp_reset;
};
int snd_amd_acp_find_config(struct pci_dev *pci);
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index c957718abefc..f3aa08dc05b2 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -6,6 +6,7 @@
*/
#include <linux/pci.h>
+#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
@@ -15,6 +16,7 @@
#include <sound/pcm_params.h>
#include <linux/pm_runtime.h>
#include <linux/iopoll.h>
+#include <linux/soundwire/sdw_amd.h>
#include "acp63.h"
@@ -119,12 +121,70 @@ static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
return IRQ_NONE;
}
-static void get_acp63_device_config(u32 config, struct pci_dev *pci,
- struct acp63_dev_data *acp_data)
+static int sdw_amd_scan_controller(struct device *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);
+ acp_data->acp_reset = true;
+ /* 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_err(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 (!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++) {
+ snprintf(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;
+ }
+
+ fwnode_property_read_u32(link, "amd-sdw-power-mode",
+ &acp_sdw_power_mode);
+ /*
+ * 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;
+}
+
+static int get_acp63_device_config(u32 config, struct pci_dev *pci, struct acp63_dev_data *acp_data)
{
struct acpi_device *dmic_dev;
+ struct acpi_device *sdw_dev;
const union acpi_object *obj;
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) {
@@ -134,22 +194,83 @@ static void get_acp63_device_config(u32 config, struct pci_dev *pci,
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);
+ if (!ret)
+ is_sdw_dev = true;
+ }
+
+ dev_dbg(&pci->dev, "Audio Mode %d\n", config);
switch (config) {
- case ACP_CONFIG_0:
- case ACP_CONFIG_1:
+ case ACP_CONFIG_4:
+ case ACP_CONFIG_5:
+ case ACP_CONFIG_10:
+ case ACP_CONFIG_11:
+ if (is_dmic_dev) {
+ acp_data->pdev_mask = ACP63_PDM_DEV_MASK;
+ acp_data->pdev_count = ACP63_PDM_MODE_DEVS;
+ }
+ break;
case ACP_CONFIG_2:
case ACP_CONFIG_3:
- case ACP_CONFIG_9:
- case ACP_CONFIG_15:
- dev_dbg(&pci->dev, "Audio Mode %d\n", config);
+ if (is_sdw_dev) {
+ switch (acp_data->sdw_manager_count) {
+ case 1:
+ acp_data->pdev_mask = ACP63_SDW_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_MODE_DEVS;
+ break;
+ case 2:
+ acp_data->pdev_mask = ACP63_SDW_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_SDW1_MODE_DEVS;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
break;
- default:
- if (is_dmic_dev) {
+ case ACP_CONFIG_6:
+ case ACP_CONFIG_7:
+ case ACP_CONFIG_12:
+ 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_mask = ACP63_SDW_PDM_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_PDM_MODE_DEVS;
+ break;
+ case 2:
+ acp_data->pdev_mask = ACP63_SDW_PDM_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_SDW1_PDM_MODE_DEVS;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else if (is_dmic_dev) {
acp_data->pdev_mask = ACP63_PDM_DEV_MASK;
acp_data->pdev_count = ACP63_PDM_MODE_DEVS;
+ } else if (is_sdw_dev) {
+ switch (acp_data->sdw_manager_count) {
+ case 1:
+ acp_data->pdev_mask = ACP63_SDW_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_MODE_DEVS;
+ break;
+ case 2:
+ acp_data->pdev_mask = ACP63_SDW_DEV_MASK;
+ acp_data->pdev_count = ACP63_SDW0_SDW1_MODE_DEVS;
+ break;
+ default:
+ return -EINVAL;
+ }
}
break;
+ default:
+ break;
}
+ return 0;
}
static void acp63_fill_platform_dev_info(struct platform_device_info *pdevinfo,
@@ -173,6 +294,7 @@ static void acp63_fill_platform_dev_info(struct platform_device_info *pdevinfo,
static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data *adata, u32 addr)
{
+ struct acp_sdw_pdata *sdw_pdata;
struct platform_device_info pdevinfo[ACP63_DEVS];
struct device *parent;
int index;
@@ -205,8 +327,110 @@ static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data
acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "acp_ps_mach",
0, NULL, 0, NULL, 0);
break;
+ case ACP63_SDW_DEV_MASK:
+ if (adata->pdev_count == ACP63_SDW0_MODE_DEVS) {
+ sdw_pdata = devm_kzalloc(&pci->dev, sizeof(struct acp_sdw_pdata),
+ GFP_KERNEL);
+ if (!sdw_pdata) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+
+ sdw_pdata->instance = 0;
+ sdw_pdata->acp_sdw_lock = &adata->acp_lock;
+ adata->sdw0_dev_index = 0;
+ adata->sdw_dma_dev_index = 1;
+ acp63_fill_platform_dev_info(&pdevinfo[0], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 0, adata->res, 1,
+ sdw_pdata, sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[1], parent, NULL, "amd_ps_sdw_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ } else if (adata->pdev_count == ACP63_SDW0_SDW1_MODE_DEVS) {
+ sdw_pdata = devm_kzalloc(&pci->dev, sizeof(struct acp_sdw_pdata) * 2,
+ GFP_KERNEL);
+ if (!sdw_pdata) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+
+ sdw_pdata[0].instance = 0;
+ sdw_pdata[1].instance = 1;
+ sdw_pdata[0].acp_sdw_lock = &adata->acp_lock;
+ sdw_pdata[1].acp_sdw_lock = &adata->acp_lock;
+ sdw_pdata->acp_sdw_lock = &adata->acp_lock;
+ adata->sdw0_dev_index = 0;
+ adata->sdw1_dev_index = 1;
+ adata->sdw_dma_dev_index = 2;
+ acp63_fill_platform_dev_info(&pdevinfo[0], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 0, adata->res, 1,
+ &sdw_pdata[0], sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[1], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 1, adata->res, 1,
+ &sdw_pdata[1], sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "amd_ps_sdw_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ }
+ break;
+ case ACP63_SDW_PDM_DEV_MASK:
+ if (adata->pdev_count == ACP63_SDW0_PDM_MODE_DEVS) {
+ sdw_pdata = devm_kzalloc(&pci->dev, sizeof(struct acp_sdw_pdata),
+ GFP_KERNEL);
+ if (!sdw_pdata) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+
+ sdw_pdata->instance = 0;
+ sdw_pdata->acp_sdw_lock = &adata->acp_lock;
+ adata->pdm_dev_index = 0;
+ adata->sdw0_dev_index = 1;
+ adata->sdw_dma_dev_index = 2;
+ acp63_fill_platform_dev_info(&pdevinfo[0], parent, NULL, "acp_ps_pdm_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ acp63_fill_platform_dev_info(&pdevinfo[1], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 0, adata->res, 1,
+ sdw_pdata, sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "amd_ps_sdw_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ acp63_fill_platform_dev_info(&pdevinfo[3], parent, NULL, "dmic-codec",
+ 0, NULL, 0, NULL, 0);
+ } else if (adata->pdev_count == ACP63_SDW0_SDW1_PDM_MODE_DEVS) {
+ sdw_pdata = devm_kzalloc(&pci->dev, sizeof(struct acp_sdw_pdata) * 2,
+ GFP_KERNEL);
+ if (!sdw_pdata) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+ sdw_pdata[0].instance = 0;
+ sdw_pdata[1].instance = 1;
+ sdw_pdata[0].acp_sdw_lock = &adata->acp_lock;
+ sdw_pdata[1].acp_sdw_lock = &adata->acp_lock;
+ adata->pdm_dev_index = 0;
+ adata->sdw0_dev_index = 1;
+ adata->sdw1_dev_index = 2;
+ adata->sdw_dma_dev_index = 3;
+ acp63_fill_platform_dev_info(&pdevinfo[0], parent, NULL, "acp_ps_pdm_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ acp63_fill_platform_dev_info(&pdevinfo[1], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 0, adata->res, 1,
+ &sdw_pdata[0], sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[2], parent, adata->sdw_fw_node,
+ "amd_sdw_manager", 1, adata->res, 1,
+ &sdw_pdata[1], sizeof(struct acp_sdw_pdata));
+ acp63_fill_platform_dev_info(&pdevinfo[3], parent, NULL, "amd_ps_sdw_dma",
+ 0, adata->res, 1, &adata->acp_lock,
+ sizeof(adata->acp_lock));
+ acp63_fill_platform_dev_info(&pdevinfo[4], parent, NULL, "dmic-codec",
+ 0, NULL, 0, NULL, 0);
+ }
+ break;
default:
- dev_dbg(&pci->dev, "No PDM devices found\n");
+ dev_dbg(&pci->dev, "No PDM or Soundwire manager devices found\n");
return 0;
}
@@ -290,7 +514,11 @@ static int snd_acp63_probe(struct pci_dev *pci,
goto de_init;
}
val = readl(adata->acp63_base + ACP_PIN_CONFIG);
- get_acp63_device_config(val, pci, adata);
+ ret = get_acp63_device_config(val, pci, adata);
+ if (ret) {
+ dev_err(&pci->dev, "get acp device config failed:%d\n", ret);
+ goto de_init;
+ }
ret = create_acp63_platform_devs(pci, adata, addr);
if (ret < 0) {
dev_err(&pci->dev, "ACP platform devices creation failed\n");
--
2.34.1
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