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mirror_ubuntu-kernels/sound/soc/amd/ps/pci-ps.c

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lowlatency-hwe-6.8-next
2024-07-02 00:48:40 +03:00
// SPDX-License-Identifier: GPL-2.0+
/*
* AMD Pink Sardine ACP PCI Driver
*
* Copyright 2022 Advanced Micro Devices, Inc.
*/
#include <linux/pci.h>
#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/interrupt.h>
#include <sound/pcm_params.h>
#include <linux/pm_runtime.h>
#include <linux/iopoll.h>
#include <linux/soundwire/sdw_amd.h>
#include "acp63.h"
static int acp63_power_on(void __iomem *acp_base)
{
u32 val;
val = readl(acp_base + ACP_PGFSM_STATUS);
if (!val)
return val;
if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS)
writel(ACP_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL);
return readl_poll_timeout(acp_base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP_TIMEOUT);
}
static int acp63_reset(void __iomem *acp_base)
{
u32 val;
int ret;
writel(1, acp_base + ACP_SOFT_RESET);
ret = readl_poll_timeout(acp_base + ACP_SOFT_RESET, val,
val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK,
DELAY_US, ACP_TIMEOUT);
if (ret)
return ret;
writel(0, acp_base + ACP_SOFT_RESET);
return readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP_TIMEOUT);
}
static void acp63_enable_interrupts(void __iomem *acp_base)
{
writel(1, acp_base + ACP_EXTERNAL_INTR_ENB);
writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL);
}
static void acp63_disable_interrupts(void __iomem *acp_base)
{
writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + ACP_EXTERNAL_INTR_STAT);
writel(0, acp_base + ACP_EXTERNAL_INTR_CNTL);
writel(0, acp_base + ACP_EXTERNAL_INTR_ENB);
}
static int acp63_init(void __iomem *acp_base, struct device *dev)
{
int ret;
ret = acp63_power_on(acp_base);
if (ret) {
dev_err(dev, "ACP power on failed\n");
return ret;
}
writel(0x01, acp_base + ACP_CONTROL);
ret = acp63_reset(acp_base);
if (ret) {
dev_err(dev, "ACP reset failed\n");
return ret;
}
acp63_enable_interrupts(acp_base);
return 0;
}
static int acp63_deinit(void __iomem *acp_base, struct device *dev)
{
int ret;
acp63_disable_interrupts(acp_base);
ret = acp63_reset(acp_base);
if (ret) {
dev_err(dev, "ACP reset failed\n");
return ret;
}
writel(0, acp_base + ACP_CONTROL);
return 0;
}
static irqreturn_t acp63_irq_thread(int irq, void *context)
{
struct sdw_dma_dev_data *sdw_dma_data;
struct acp63_dev_data *adata = context;
u32 stream_index;
u16 pdev_index;
pdev_index = adata->sdw_dma_dev_index;
sdw_dma_data = dev_get_drvdata(&adata->pdev[pdev_index]->dev);
for (stream_index = 0; stream_index < ACP63_SDW0_DMA_MAX_STREAMS; stream_index++) {
if (adata->sdw0_dma_intr_stat[stream_index]) {
if (sdw_dma_data->sdw0_dma_stream[stream_index])
snd_pcm_period_elapsed(sdw_dma_data->sdw0_dma_stream[stream_index]);
adata->sdw0_dma_intr_stat[stream_index] = 0;
}
}
for (stream_index = 0; stream_index < ACP63_SDW1_DMA_MAX_STREAMS; stream_index++) {
if (adata->sdw1_dma_intr_stat[stream_index]) {
if (sdw_dma_data->sdw1_dma_stream[stream_index])
snd_pcm_period_elapsed(sdw_dma_data->sdw1_dma_stream[stream_index]);
adata->sdw1_dma_intr_stat[stream_index] = 0;
}
}
return IRQ_HANDLED;
}
static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
{
struct acp63_dev_data *adata;
struct pdm_dev_data *ps_pdm_data;
struct amd_sdw_manager *amd_manager;
u32 ext_intr_stat, ext_intr_stat1;
u32 stream_id = 0;
u16 irq_flag = 0;
u16 sdw_dma_irq_flag = 0;
u16 pdev_index;
u16 index;
adata = dev_id;
if (!adata)
return IRQ_NONE;
/* ACP interrupts will be cleared by reading particular bit and writing
* same value to the status register. writing zero's doesn't have any
* effect.
* Bit by bit checking of IRQ field is implemented.
*/
ext_intr_stat = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
if (ext_intr_stat & ACP_SDW0_STAT) {
writel(ACP_SDW0_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
pdev_index = adata->sdw0_dev_index;
amd_manager = dev_get_drvdata(&adata->pdev[pdev_index]->dev);
if (amd_manager)
schedule_work(&amd_manager->amd_sdw_irq_thread);
irq_flag = 1;
}
ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
if (ext_intr_stat1 & ACP_SDW1_STAT) {
writel(ACP_SDW1_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
pdev_index = adata->sdw1_dev_index;
amd_manager = dev_get_drvdata(&adata->pdev[pdev_index]->dev);
if (amd_manager)
schedule_work(&amd_manager->amd_sdw_irq_thread);
irq_flag = 1;
}
if (ext_intr_stat & ACP_ERROR_IRQ) {
writel(ACP_ERROR_IRQ, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
/* TODO: Report SoundWire Manager instance errors */
writel(0, adata->acp63_base + ACP_SW0_I2S_ERROR_REASON);
writel(0, adata->acp63_base + ACP_SW1_I2S_ERROR_REASON);
writel(0, adata->acp63_base + ACP_ERROR_STATUS);
irq_flag = 1;
}
if (ext_intr_stat & BIT(PDM_DMA_STAT)) {
pdev_index = adata->pdm_dev_index;
ps_pdm_data = dev_get_drvdata(&adata->pdev[pdev_index]->dev);
writel(BIT(PDM_DMA_STAT), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
if (ps_pdm_data->capture_stream)
snd_pcm_period_elapsed(ps_pdm_data->capture_stream);
irq_flag = 1;
}
if (ext_intr_stat & ACP_SDW_DMA_IRQ_MASK) {
for (index = ACP_AUDIO2_RX_THRESHOLD; index <= ACP_AUDIO0_TX_THRESHOLD; index++) {
if (ext_intr_stat & BIT(index)) {
writel(BIT(index), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
switch (index) {
case ACP_AUDIO0_TX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO0_TX;
break;
case ACP_AUDIO1_TX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO1_TX;
break;
case ACP_AUDIO2_TX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO2_TX;
break;
case ACP_AUDIO0_RX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO0_RX;
break;
case ACP_AUDIO1_RX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO1_RX;
break;
case ACP_AUDIO2_RX_THRESHOLD:
stream_id = ACP_SDW0_AUDIO2_RX;
break;
}
adata->sdw0_dma_intr_stat[stream_id] = 1;
sdw_dma_irq_flag = 1;
}
}
}
if (ext_intr_stat1 & ACP_P1_AUDIO1_RX_THRESHOLD) {
writel(ACP_P1_AUDIO1_RX_THRESHOLD,
adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
adata->sdw1_dma_intr_stat[ACP_SDW1_AUDIO1_RX] = 1;
sdw_dma_irq_flag = 1;
}
if (ext_intr_stat1 & ACP_P1_AUDIO1_TX_THRESHOLD) {
writel(ACP_P1_AUDIO1_TX_THRESHOLD,
adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
adata->sdw1_dma_intr_stat[ACP_SDW1_AUDIO1_TX] = 1;
sdw_dma_irq_flag = 1;
}
if (sdw_dma_irq_flag)
return IRQ_WAKE_THREAD;
if (irq_flag)
return IRQ_HANDLED;
else
return IRQ_NONE;
}
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);
/*
* 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 (!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;
}
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;
}
}
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) {
/* 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);
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;
}
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;
}
}
break;
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_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;
}
}
break;
default:
break;
}
return 0;
}
static void acp63_fill_platform_dev_info(struct platform_device_info *pdevinfo,
struct device *parent,
struct fwnode_handle *fw_node,
char *name, unsigned int id,
const struct resource *res,
unsigned int num_res,
const void *data,
size_t size_data)
{
pdevinfo->name = name;
pdevinfo->id = id;
pdevinfo->parent = parent;
pdevinfo->num_res = num_res;
pdevinfo->res = res;
pdevinfo->data = data;
pdevinfo->size_data = size_data;
pdevinfo->fwnode = fw_node;
}
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;
int ret;
parent = &pci->dev;
dev_dbg(&pci->dev,
"%s pdev_config:0x%x pdev_count:0x%x\n", __func__, adata->pdev_config,
adata->pdev_count);
if (adata->pdev_config) {
adata->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);
if (!adata->res) {
ret = -ENOMEM;
goto de_init;
}
adata->res->flags = IORESOURCE_MEM;
adata->res->start = addr;
adata->res->end = addr + (ACP63_REG_END - ACP63_REG_START);
memset(&pdevinfo, 0, sizeof(pdevinfo));
}
switch (adata->pdev_config) {
case ACP63_PDM_DEV_CONFIG:
adata->pdm_dev_index = 0;
acp63_fill_platform_dev_info(&pdevinfo[0], parent, NULL, "acp_ps_pdm_dma",
0, adata->res, 1, NULL, 0);
acp63_fill_platform_dev_info(&pdevinfo[1], parent, NULL, "dmic-codec",
0, NULL, 0, NULL, 0);
acp63_fill_platform_dev_info(&pdevinfo[2], parent, NULL, "acp_ps_mach",
0, NULL, 0, NULL, 0);
break;
case ACP63_SDW_DEV_CONFIG:
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, NULL, 0);
} 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, NULL, 0);
}
break;
case ACP63_SDW_PDM_DEV_CONFIG:
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, NULL, 0);
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, NULL, 0);
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, NULL, 0);
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, NULL, 0);
acp63_fill_platform_dev_info(&pdevinfo[4], parent, NULL, "dmic-codec",
0, NULL, 0, NULL, 0);
}
break;
default:
dev_dbg(&pci->dev, "No PDM or SoundWire manager devices found\n");
return 0;
}
for (index = 0; index < adata->pdev_count; index++) {
adata->pdev[index] = platform_device_register_full(&pdevinfo[index]);
if (IS_ERR(adata->pdev[index])) {
dev_err(&pci->dev,
"cannot register %s device\n", pdevinfo[index].name);
ret = PTR_ERR(adata->pdev[index]);
goto unregister_devs;
}
}
return 0;
unregister_devs:
for (--index; index >= 0; index--)
platform_device_unregister(adata->pdev[index]);
de_init:
if (acp63_deinit(adata->acp63_base, &pci->dev))
dev_err(&pci->dev, "ACP de-init failed\n");
return ret;
}
static int snd_acp63_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct acp63_dev_data *adata;
u32 addr;
u32 irqflags, flag;
int val;
int ret;
irqflags = IRQF_SHARED;
/* Return if acp config flag is defined */
flag = snd_amd_acp_find_config(pci);
if (flag)
return -ENODEV;
/* Pink Sardine device check */
switch (pci->revision) {
case 0x63:
break;
default:
dev_dbg(&pci->dev, "acp63 pci device not found\n");
return -ENODEV;
}
if (pci_enable_device(pci)) {
dev_err(&pci->dev, "pci_enable_device failed\n");
return -ENODEV;
}
ret = pci_request_regions(pci, "AMD ACP6.2 audio");
if (ret < 0) {
dev_err(&pci->dev, "pci_request_regions failed\n");
goto disable_pci;
}
adata = devm_kzalloc(&pci->dev, sizeof(struct acp63_dev_data),
GFP_KERNEL);
if (!adata) {
ret = -ENOMEM;
goto release_regions;
}
addr = pci_resource_start(pci, 0);
adata->acp63_base = devm_ioremap(&pci->dev, addr,
pci_resource_len(pci, 0));
if (!adata->acp63_base) {
ret = -ENOMEM;
goto release_regions;
}
/*
* By default acp_reset flag is set to true. i.e acp_deinit() and acp_init()
* will be invoked for all ACP configurations during suspend/resume callbacks.
* This flag should be set to false only when SoundWire manager power mode
* set to ClockStopMode.
*/
adata->acp_reset = true;
pci_set_master(pci);
pci_set_drvdata(pci, adata);
mutex_init(&adata->acp_lock);
ret = acp63_init(adata->acp63_base, &pci->dev);
if (ret)
goto release_regions;
ret = devm_request_threaded_irq(&pci->dev, pci->irq, acp63_irq_handler,
acp63_irq_thread, irqflags, "ACP_PCI_IRQ", adata);
if (ret) {
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);
/* 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);
goto skip_pdev_creation;
}
ret = create_acp63_platform_devs(pci, adata, addr);
if (ret < 0) {
dev_err(&pci->dev, "ACP platform devices creation failed\n");
goto de_init;
}
skip_pdev_creation:
device_set_wakeup_enable(&pci->dev, true);
pm_runtime_set_autosuspend_delay(&pci->dev, ACP_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&pci->dev);
pm_runtime_put_noidle(&pci->dev);
pm_runtime_allow(&pci->dev);
return 0;
de_init:
if (acp63_deinit(adata->acp63_base, &pci->dev))
dev_err(&pci->dev, "ACP de-init failed\n");
release_regions:
pci_release_regions(pci);
disable_pci:
pci_disable_device(pci);
return ret;
}
static int __maybe_unused snd_acp63_suspend(struct device *dev)
{
struct acp63_dev_data *adata;
int ret = 0;
adata = dev_get_drvdata(dev);
if (adata->acp_reset) {
ret = acp63_deinit(adata->acp63_base, dev);
if (ret)
dev_err(dev, "ACP de-init failed\n");
}
return ret;
}
static int __maybe_unused snd_acp63_resume(struct device *dev)
{
struct acp63_dev_data *adata;
int ret = 0;
adata = dev_get_drvdata(dev);
if (adata->acp_reset) {
ret = acp63_init(adata->acp63_base, dev);
if (ret)
dev_err(dev, "ACP init failed\n");
}
return ret;
}
static const struct dev_pm_ops acp63_pm_ops = {
SET_RUNTIME_PM_OPS(snd_acp63_suspend, snd_acp63_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(snd_acp63_suspend, snd_acp63_resume)
};
static void snd_acp63_remove(struct pci_dev *pci)
{
struct acp63_dev_data *adata;
int ret, index;
adata = pci_get_drvdata(pci);
for (index = 0; index < adata->pdev_count; index++)
platform_device_unregister(adata->pdev[index]);
ret = acp63_deinit(adata->acp63_base, &pci->dev);
if (ret)
dev_err(&pci->dev, "ACP de-init failed\n");
pm_runtime_forbid(&pci->dev);
pm_runtime_get_noresume(&pci->dev);
pci_release_regions(pci);
pci_disable_device(pci);
}
static const struct pci_device_id snd_acp63_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_DEVICE_ID),
.class = PCI_CLASS_MULTIMEDIA_OTHER << 8,
.class_mask = 0xffffff },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, snd_acp63_ids);
static struct pci_driver ps_acp63_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_acp63_ids,
.probe = snd_acp63_probe,
.remove = snd_acp63_remove,
.driver = {
.pm = &acp63_pm_ops,
}
};
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_LICENSE("GPL v2");
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