+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * AMD RPL ACP PCI Driver
- *
- * Copyright 2022 Advanced Micro Devices, Inc.
- */
-
-#include <linux/pci.h>
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-
-#include "rpl_acp6x.h"
-
-struct rpl_dev_data {
- void __iomem *acp6x_base;
-};
-
-static int rpl_power_on(void __iomem *acp_base)
-{
- u32 val;
- int timeout;
-
- val = rpl_acp_readl(acp_base + ACP_PGFSM_STATUS);
-
- if (!val)
- return val;
-
- if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS)
- rpl_acp_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL);
- timeout = 0;
- while (++timeout < 500) {
- val = rpl_acp_readl(acp_base + ACP_PGFSM_STATUS);
- if (!val)
- return 0;
- udelay(1);
- }
- return -ETIMEDOUT;
-}
-
-static int rpl_reset(void __iomem *acp_base)
-{
- u32 val;
- int timeout;
-
- rpl_acp_writel(1, acp_base + ACP_SOFT_RESET);
- timeout = 0;
- while (++timeout < 500) {
- val = rpl_acp_readl(acp_base + ACP_SOFT_RESET);
- if (val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK)
- break;
- cpu_relax();
- }
- rpl_acp_writel(0, acp_base + ACP_SOFT_RESET);
- timeout = 0;
- while (++timeout < 500) {
- val = rpl_acp_readl(acp_base + ACP_SOFT_RESET);
- if (!val)
- return 0;
- cpu_relax();
- }
- return -ETIMEDOUT;
-}
-
-static int rpl_init(void __iomem *acp_base)
-{
- int ret;
-
- /* power on */
- ret = rpl_power_on(acp_base);
- if (ret) {
- pr_err("ACP power on failed\n");
- return ret;
- }
- rpl_acp_writel(0x01, acp_base + ACP_CONTROL);
- /* Reset */
- ret = rpl_reset(acp_base);
- if (ret) {
- pr_err("ACP reset failed\n");
- return ret;
- }
- rpl_acp_writel(0x03, acp_base + ACP_CLKMUX_SEL);
- return 0;
-}
-
-static int rpl_deinit(void __iomem *acp_base)
-{
- int ret;
-
- /* Reset */
- ret = rpl_reset(acp_base);
- if (ret) {
- pr_err("ACP reset failed\n");
- return ret;
- }
- rpl_acp_writel(0x00, acp_base + ACP_CLKMUX_SEL);
- rpl_acp_writel(0x00, acp_base + ACP_CONTROL);
- return 0;
-}
-
-static int snd_rpl_probe(struct pci_dev *pci,
- const struct pci_device_id *pci_id)
-{
- struct rpl_dev_data *adata;
- u32 addr;
- int ret;
-
- /* RPL device check */
- switch (pci->revision) {
- case 0x62:
- break;
- default:
- dev_dbg(&pci->dev, "acp6x 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 ACP6x audio");
- if (ret < 0) {
- dev_err(&pci->dev, "pci_request_regions failed\n");
- goto disable_pci;
- }
-
- adata = devm_kzalloc(&pci->dev, sizeof(struct rpl_dev_data),
- GFP_KERNEL);
- if (!adata) {
- ret = -ENOMEM;
- goto release_regions;
- }
-
- addr = pci_resource_start(pci, 0);
- adata->acp6x_base = devm_ioremap(&pci->dev, addr,
- pci_resource_len(pci, 0));
- if (!adata->acp6x_base) {
- ret = -ENOMEM;
- goto release_regions;
- }
- pci_set_master(pci);
- pci_set_drvdata(pci, adata);
- ret = rpl_init(adata->acp6x_base);
- if (ret)
- goto release_regions;
- 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;
-release_regions:
- pci_release_regions(pci);
-disable_pci:
- pci_disable_device(pci);
-
- return ret;
-}
-
-static int snd_rpl_suspend(struct device *dev)
-{
- struct rpl_dev_data *adata;
- int ret;
-
- adata = dev_get_drvdata(dev);
- ret = rpl_deinit(adata->acp6x_base);
- if (ret)
- dev_err(dev, "ACP de-init failed\n");
- return ret;
-}
-
-static int snd_rpl_resume(struct device *dev)
-{
- struct rpl_dev_data *adata;
- int ret;
-
- adata = dev_get_drvdata(dev);
- ret = rpl_init(adata->acp6x_base);
- if (ret)
- dev_err(dev, "ACP init failed\n");
- return ret;
-}
-
-static const struct dev_pm_ops rpl_pm = {
- RUNTIME_PM_OPS(snd_rpl_suspend, snd_rpl_resume, NULL)
- SYSTEM_SLEEP_PM_OPS(snd_rpl_suspend, snd_rpl_resume)
-};
-
-static void snd_rpl_remove(struct pci_dev *pci)
-{
- struct rpl_dev_data *adata;
- int ret;
-
- adata = pci_get_drvdata(pci);
- ret = rpl_deinit(adata->acp6x_base);
- 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_rpl_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_rpl_ids);
-
-static struct pci_driver rpl_acp6x_driver = {
- .name = KBUILD_MODNAME,
- .id_table = snd_rpl_ids,
- .probe = snd_rpl_probe,
- .remove = snd_rpl_remove,
- .driver = {
- .pm = pm_ptr(&rpl_pm),
- }
-};
-
-module_pci_driver(rpl_acp6x_driver);
-
-MODULE_DESCRIPTION("AMD ACP RPL PCI driver");
-MODULE_LICENSE("GPL v2");
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * AMD ACP Driver
- *
- * Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved.
- */
-
-#include "rpl_acp6x_chip_offset_byte.h"
-
-#define ACP_DEVICE_ID 0x15E2
-#define ACP6x_PHY_BASE_ADDRESS 0x1240000
-
-#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
-#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
-#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0
-#define ACP_PGFSM_STATUS_MASK 3
-#define ACP_POWERED_ON 0
-#define ACP_POWER_ON_IN_PROGRESS 1
-#define ACP_POWERED_OFF 2
-#define ACP_POWER_OFF_IN_PROGRESS 3
-
-#define DELAY_US 5
-#define ACP_COUNTER 20000
-
-/* time in ms for runtime suspend delay */
-#define ACP_SUSPEND_DELAY_MS 2000
-
-static inline u32 rpl_acp_readl(void __iomem *base_addr)
-{
- return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);
-}
-
-static inline void rpl_acp_writel(u32 val, void __iomem *base_addr)
-{
- writel(val, base_addr - ACP6x_PHY_BASE_ADDRESS);
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * AMD ACP 6.2 Register Documentation
- *
- * Copyright 2022 Advanced Micro Devices, Inc.
- */
-
-#ifndef _rpl_acp6x_OFFSET_HEADER
-#define _rpl_acp6x_OFFSET_HEADER
-
-/* Registers from ACP_CLKRST block */
-#define ACP_SOFT_RESET 0x1241000
-#define ACP_CONTROL 0x1241004
-#define ACP_STATUS 0x1241008
-#define ACP_DYNAMIC_CG_MASTER_CONTROL 0x1241010
-#define ACP_PGFSM_CONTROL 0x124101C
-#define ACP_PGFSM_STATUS 0x1241020
-#define ACP_CLKMUX_SEL 0x1241024
-
-/* Registers from ACP_AON block */
-#define ACP_PME_EN 0x1241400
-#define ACP_DEVICE_STATE 0x1241404
-#define AZ_DEVICE_STATE 0x1241408
-#define ACP_PIN_CONFIG 0x1241440
-#define ACP_PAD_PULLUP_CTRL 0x1241444
-#define ACP_PAD_PULLDOWN_CTRL 0x1241448
-#define ACP_PAD_DRIVE_STRENGTH_CTRL 0x124144C
-#define ACP_PAD_SCHMEN_CTRL 0x1241450
-
-#endif
projects / thirdparty / linux.git / commitdiff
