[PATCH v2 01/10] ASoC: amd: acp: refactor the acp init and de-init sequence
From: Syed Saba Kareem
Date: Mon Jun 26 2023 - 09:56:05 EST
Remove the individual acp init and de-init functions from different
variants of acp pci driver(for renoir/rembrandt platforms) and use a
common file to define callbacks and refactor the callbacks to support
existing platforms.
Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@xxxxxxx>
---
sound/soc/amd/acp/Kconfig | 4 +
sound/soc/amd/acp/Makefile | 2 +
sound/soc/amd/acp/acp-legacy-common.c | 99 +++++++++++++++++++++++
sound/soc/amd/acp/acp-pci.c | 9 +++
sound/soc/amd/acp/acp-rembrandt.c | 110 --------------------------
sound/soc/amd/acp/acp-renoir.c | 92 ---------------------
sound/soc/amd/acp/amd.h | 21 +++++
7 files changed, 135 insertions(+), 202 deletions(-)
create mode 100644 sound/soc/amd/acp/acp-legacy-common.c
diff --git a/sound/soc/amd/acp/Kconfig b/sound/soc/amd/acp/Kconfig
index ce0037810743..6a369e5d825c 100644
--- a/sound/soc/amd/acp/Kconfig
+++ b/sound/soc/amd/acp/Kconfig
@@ -18,6 +18,9 @@ if SND_SOC_AMD_ACP_COMMON
config SND_SOC_AMD_ACP_PDM
tristate
+config SND_SOC_AMD_ACP_LEGACY_COMMON
+ tristate
+
config SND_SOC_AMD_ACP_I2S
tristate
@@ -28,6 +31,7 @@ config SND_SOC_AMD_ACP_PCM
config SND_SOC_AMD_ACP_PCI
tristate "AMD ACP PCI Driver Support"
depends on X86 && PCI
+ select SND_SOC_AMD_ACP_LEGACY_COMMON
help
This options enables generic PCI driver for ACP device.
diff --git a/sound/soc/amd/acp/Makefile b/sound/soc/amd/acp/Makefile
index d9abb0ee5218..4e65fdbc8dca 100644
--- a/sound/soc/amd/acp/Makefile
+++ b/sound/soc/amd/acp/Makefile
@@ -8,6 +8,7 @@
snd-acp-pcm-objs := acp-platform.o
snd-acp-i2s-objs := acp-i2s.o
snd-acp-pdm-objs := acp-pdm.o
+snd-acp-legacy-common-objs := acp-legacy-common.o
snd-acp-pci-objs := acp-pci.o
#platform specific driver
@@ -22,6 +23,7 @@ snd-acp-sof-mach-objs := acp-sof-mach.o
obj-$(CONFIG_SND_SOC_AMD_ACP_PCM) += snd-acp-pcm.o
obj-$(CONFIG_SND_SOC_AMD_ACP_I2S) += snd-acp-i2s.o
obj-$(CONFIG_SND_SOC_AMD_ACP_PDM) += snd-acp-pdm.o
+obj-$(CONFIG_SND_SOC_AMD_ACP_LEGACY_COMMON) += snd-acp-legacy-common.o
obj-$(CONFIG_SND_SOC_AMD_ACP_PCI) += snd-acp-pci.o
obj-$(CONFIG_SND_AMD_ASOC_RENOIR) += snd-acp-renoir.o
diff --git a/sound/soc/amd/acp/acp-legacy-common.c b/sound/soc/amd/acp/acp-legacy-common.c
new file mode 100644
index 000000000000..5b7000eae693
--- /dev/null
+++ b/sound/soc/amd/acp/acp-legacy-common.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2023 Advanced Micro Devices, Inc.
+//
+// Authors: Syed Saba Kareem <Syed.SabaKareem@xxxxxxx>
+//
+
+/*
+ * Common file to be used by amd platforms
+ */
+
+#include "amd.h"
+#include <linux/export.h>
+
+static int acp_power_on(struct acp_chip_info *chip)
+{
+ u32 val, acp_pgfsm_stat_reg, acp_pgfsm_ctrl_reg;
+ void __iomem *base;
+
+ base = chip->base;
+ switch (chip->acp_rev) {
+ case ACP3X_DEV:
+ acp_pgfsm_stat_reg = ACP_PGFSM_STATUS;
+ acp_pgfsm_ctrl_reg = ACP_PGFSM_CONTROL;
+ break;
+ case ACP6X_DEV:
+ acp_pgfsm_stat_reg = ACP6X_PGFSM_STATUS;
+ acp_pgfsm_ctrl_reg = ACP6X_PGFSM_CONTROL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val = readl(base + acp_pgfsm_stat_reg);
+ if (val == ACP_POWERED_ON)
+ return 0;
+
+ if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS)
+ writel(ACP_PGFSM_CNTL_POWER_ON_MASK, base + acp_pgfsm_ctrl_reg);
+
+ return readl_poll_timeout(base + acp_pgfsm_stat_reg, val,
+ !val, DELAY_US, ACP_TIMEOUT);
+}
+
+static int acp_reset(void __iomem *base)
+{
+ u32 val;
+ int ret;
+
+ writel(1, base + ACP_SOFT_RESET);
+ ret = readl_poll_timeout(base + ACP_SOFT_RESET, val, val & ACP_SOFT_RST_DONE_MASK,
+ DELAY_US, ACP_TIMEOUT);
+ if (ret)
+ return ret;
+
+ writel(0, base + ACP_SOFT_RESET);
+ return readl_poll_timeout(base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP_TIMEOUT);
+}
+
+int acp_init(struct acp_chip_info *chip)
+{
+ int ret;
+
+ /* power on */
+ ret = acp_power_on(chip);
+ if (ret) {
+ pr_err("ACP power on failed\n");
+ return ret;
+ }
+ writel(0x01, chip->base + ACP_CONTROL);
+
+ /* Reset */
+ ret = acp_reset(chip->base);
+ if (ret) {
+ pr_err("ACP reset failed\n");
+ return ret;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_init, SND_SOC_ACP_COMMON);
+
+int acp_deinit(void __iomem *base)
+{
+ int ret;
+
+ /* Reset */
+ ret = acp_reset(base);
+ if (ret)
+ return ret;
+
+ writel(0, base + ACP_CONTROL);
+ return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_deinit, SND_SOC_ACP_COMMON);
+
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/sound/soc/amd/acp/acp-pci.c b/sound/soc/amd/acp/acp-pci.c
index 8154fbfd1229..a51cf7f32f7d 100644
--- a/sound/soc/amd/acp/acp-pci.c
+++ b/sound/soc/amd/acp/acp-pci.c
@@ -106,6 +106,7 @@ static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id
goto unregister_dmic_dev;
}
+ acp_init(chip);
res = devm_kcalloc(&pci->dev, num_res, sizeof(struct resource), GFP_KERNEL);
if (!res) {
ret = -ENOMEM;
@@ -154,10 +155,17 @@ static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id
static void acp_pci_remove(struct pci_dev *pci)
{
+ struct acp_chip_info *chip;
+ int ret;
+
+ chip = pci_get_drvdata(pci);
if (dmic_dev)
platform_device_unregister(dmic_dev);
if (pdev)
platform_device_unregister(pdev);
+ ret = acp_deinit(chip->base);
+ if (ret)
+ dev_err(&pci->dev, "ACP de-init failed\n");
}
/* PCI IDs */
@@ -177,4 +185,5 @@ static struct pci_driver snd_amd_acp_pci_driver = {
module_pci_driver(snd_amd_acp_pci_driver);
MODULE_LICENSE("Dual BSD/GPL");
+MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
MODULE_ALIAS(DRV_NAME);
diff --git a/sound/soc/amd/acp/acp-rembrandt.c b/sound/soc/amd/acp/acp-rembrandt.c
index 1b997837c7d8..59b1653b8479 100644
--- a/sound/soc/amd/acp/acp-rembrandt.c
+++ b/sound/soc/amd/acp/acp-rembrandt.c
@@ -24,26 +24,6 @@
#define DRV_NAME "acp_asoc_rembrandt"
-#define ACP6X_PGFSM_CONTROL 0x1024
-#define ACP6X_PGFSM_STATUS 0x1028
-
-#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
-
-#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01
-#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00
-#define ACP_PGFSM_STATUS_MASK 0x03
-#define ACP_POWERED_ON 0x00
-#define ACP_POWER_ON_IN_PROGRESS 0x01
-#define ACP_POWERED_OFF 0x02
-#define ACP_POWER_OFF_IN_PROGRESS 0x03
-
-#define ACP_ERROR_MASK 0x20000000
-#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
-
-
-static int rmb_acp_init(void __iomem *base);
-static int rmb_acp_deinit(void __iomem *base);
-
static struct acp_resource rsrc = {
.offset = 0,
.no_of_ctrls = 2,
@@ -180,54 +160,6 @@ static struct snd_soc_dai_driver acp_rmb_dai[] = {
},
};
-static int acp6x_power_on(void __iomem *base)
-{
- u32 val;
- int timeout;
-
- val = readl(base + ACP6X_PGFSM_STATUS);
-
- if (val == ACP_POWERED_ON)
- return 0;
-
- if ((val & ACP_PGFSM_STATUS_MASK) !=
- ACP_POWER_ON_IN_PROGRESS)
- writel(ACP_PGFSM_CNTL_POWER_ON_MASK,
- base + ACP6X_PGFSM_CONTROL);
- timeout = 0;
- while (++timeout < 500) {
- val = readl(base + ACP6X_PGFSM_STATUS);
- if (!val)
- return 0;
- udelay(1);
- }
- return -ETIMEDOUT;
-}
-
-static int acp6x_reset(void __iomem *base)
-{
- u32 val;
- int timeout;
-
- writel(1, base + ACP_SOFT_RESET);
- timeout = 0;
- while (++timeout < 500) {
- val = readl(base + ACP_SOFT_RESET);
- if (val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK)
- break;
- cpu_relax();
- }
- writel(0, base + ACP_SOFT_RESET);
- timeout = 0;
- while (++timeout < 500) {
- val = readl(base + ACP_SOFT_RESET);
- if (!val)
- return 0;
- cpu_relax();
- }
- return -ETIMEDOUT;
-}
-
static void acp6x_enable_interrupts(struct acp_dev_data *adata)
{
struct acp_resource *rsrc = adata->rsrc;
@@ -248,43 +180,6 @@ static void acp6x_disable_interrupts(struct acp_dev_data *adata)
writel(0x00, ACP_EXTERNAL_INTR_ENB(adata));
}
-static int rmb_acp_init(void __iomem *base)
-{
- int ret;
-
- /* power on */
- ret = acp6x_power_on(base);
- if (ret) {
- pr_err("ACP power on failed\n");
- return ret;
- }
- writel(0x01, base + ACP_CONTROL);
-
- /* Reset */
- ret = acp6x_reset(base);
- if (ret) {
- pr_err("ACP reset failed\n");
- return ret;
- }
-
- return 0;
-}
-
-static int rmb_acp_deinit(void __iomem *base)
-{
- int ret = 0;
-
- /* Reset */
- ret = acp6x_reset(base);
- if (ret) {
- pr_err("ACP reset failed\n");
- return ret;
- }
-
- writel(0x00, base + ACP_CONTROL);
- return 0;
-}
-
static int rembrandt_audio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -303,8 +198,6 @@ static int rembrandt_audio_probe(struct platform_device *pdev)
return -ENODEV;
}
- rmb_acp_init(chip->base);
-
adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
if (!adata)
return -ENOMEM;
@@ -345,9 +238,6 @@ static void rembrandt_audio_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct acp_dev_data *adata = dev_get_drvdata(dev);
- struct acp_chip_info *chip = dev_get_platdata(dev);
-
- rmb_acp_deinit(chip->base);
acp6x_disable_interrupts(adata);
acp_platform_unregister(dev);
diff --git a/sound/soc/amd/acp/acp-renoir.c b/sound/soc/amd/acp/acp-renoir.c
index f188365fe214..a73fd70171c1 100644
--- a/sound/soc/amd/acp/acp-renoir.c
+++ b/sound/soc/amd/acp/acp-renoir.c
@@ -25,20 +25,6 @@
#define DRV_NAME "acp_asoc_renoir"
-#define ACP_SOFT_RST_DONE_MASK 0x00010001
-
-#define ACP_PWR_ON_MASK 0x01
-#define ACP_PWR_OFF_MASK 0x00
-#define ACP_PGFSM_STAT_MASK 0x03
-#define ACP_POWERED_ON 0x00
-#define ACP_PWR_ON_IN_PROGRESS 0x01
-#define ACP_POWERED_OFF 0x02
-#define DELAY_US 5
-#define ACP_TIMEOUT 500
-
-#define ACP_ERROR_MASK 0x20000000
-#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
-
static struct acp_resource rsrc = {
.offset = 20,
.no_of_ctrls = 1,
@@ -154,38 +140,6 @@ static struct snd_soc_dai_driver acp_renoir_dai[] = {
},
};
-static int acp3x_power_on(void __iomem *base)
-{
- u32 val;
-
- val = readl(base + ACP_PGFSM_STATUS);
-
- if (val == ACP_POWERED_ON)
- return 0;
-
- if ((val & ACP_PGFSM_STAT_MASK) != ACP_PWR_ON_IN_PROGRESS)
- writel(ACP_PWR_ON_MASK, base + ACP_PGFSM_CONTROL);
-
- return readl_poll_timeout(base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP_TIMEOUT);
-}
-
-static int acp3x_reset(void __iomem *base)
-{
- u32 val;
- int ret;
-
- writel(1, base + ACP_SOFT_RESET);
-
- ret = readl_poll_timeout(base + ACP_SOFT_RESET, val, val & ACP_SOFT_RST_DONE_MASK,
- DELAY_US, ACP_TIMEOUT);
- if (ret)
- return ret;
-
- writel(0, base + ACP_SOFT_RESET);
-
- return readl_poll_timeout(base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP_TIMEOUT);
-}
-
static void acp3x_enable_interrupts(struct acp_dev_data *adata)
{
struct acp_resource *rsrc = adata->rsrc;
@@ -206,37 +160,6 @@ static void acp3x_disable_interrupts(struct acp_dev_data *adata)
writel(0x00, ACP_EXTERNAL_INTR_ENB(adata));
}
-static int rn_acp_init(void __iomem *base)
-{
- int ret;
-
- /* power on */
- ret = acp3x_power_on(base);
- if (ret)
- return ret;
-
- writel(0x01, base + ACP_CONTROL);
-
- /* Reset */
- ret = acp3x_reset(base);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int rn_acp_deinit(void __iomem *base)
-{
- int ret = 0;
-
- /* Reset */
- ret = acp3x_reset(base);
- if (ret)
- return ret;
-
- writel(0x00, base + ACP_CONTROL);
- return 0;
-}
static int renoir_audio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -256,12 +179,6 @@ static int renoir_audio_probe(struct platform_device *pdev)
return -ENODEV;
}
- ret = rn_acp_init(chip->base);
- if (ret) {
- dev_err(&pdev->dev, "ACP Init failed\n");
- return -EINVAL;
- }
-
adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
if (!adata)
return -ENOMEM;
@@ -300,17 +217,8 @@ static void renoir_audio_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct acp_dev_data *adata = dev_get_drvdata(dev);
- struct acp_chip_info *chip;
- int ret;
-
- chip = dev_get_platdata(&pdev->dev);
acp3x_disable_interrupts(adata);
-
- ret = rn_acp_deinit(chip->base);
- if (ret)
- dev_err(&pdev->dev, "ACP de-init Failed (%pe)\n", ERR_PTR(ret));
-
acp_platform_unregister(dev);
}
diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h
index 5f2119f42271..83c9a3ba8584 100644
--- a/sound/soc/amd/acp/amd.h
+++ b/sound/soc/amd/acp/amd.h
@@ -92,6 +92,25 @@
#define SLOT_WIDTH_24 0x18
#define SLOT_WIDTH_32 0x20
+#define ACP6X_PGFSM_CONTROL 0x1024
+#define ACP6X_PGFSM_STATUS 0x1028
+
+#define ACP_SOFT_RST_DONE_MASK 0x00010001
+
+#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00
+#define ACP_PGFSM_STATUS_MASK 0x03
+#define ACP_POWERED_ON 0x00
+#define ACP_POWER_ON_IN_PROGRESS 0x01
+#define ACP_POWERED_OFF 0x02
+#define ACP_POWER_OFF_IN_PROGRESS 0x03
+
+#define ACP_ERROR_MASK 0x20000000
+#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xffffffff
+
+#define ACP_TIMEOUT 500
+#define DELAY_US 5
+
struct acp_chip_info {
char *name; /* Platform name */
unsigned int acp_rev; /* ACP Revision id */
@@ -168,6 +187,8 @@ int acp_platform_unregister(struct device *dev);
int acp_machine_select(struct acp_dev_data *adata);
+int acp_init(struct acp_chip_info *chip);
+int acp_deinit(void __iomem *base);
/* Machine configuration */
int snd_amd_acp_find_config(struct pci_dev *pci);
--
2.25.1