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Subject[PATCH v13 1/7] ASoC: amd:Create multiple I2S platform device endpoint
Date
Creates Platform Device endpoints for multiple
I2S instances: SP and BT endpoints device.
Pass PCI resources like MMIO, irq to the platform devices.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
---
sound/soc/amd/raven/acp3x.h | 5 +++
sound/soc/amd/raven/pci-acp3x.c | 95 +++++++++++++++++++++++++++--------------
2 files changed, 68 insertions(+), 32 deletions(-)

diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
index 4f2cadd..2f15fe1 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -7,10 +7,15 @@

#include "chip_offset_byte.h"

+#define ACP3x_DEVS 3
#define ACP3x_PHY_BASE_ADDRESS 0x1240000
#define ACP3x_I2S_MODE 0
#define ACP3x_REG_START 0x1240000
#define ACP3x_REG_END 0x1250200
+#define ACP3x_I2STDM_REG_START 0x1242400
+#define ACP3x_I2STDM_REG_END 0x1242410
+#define ACP3x_BT_TDM_REG_START 0x1242800
+#define ACP3x_BT_TDM_REG_END 0x1242810
#define I2S_MODE 0x04
#define BT_TX_THRESHOLD 26
#define BT_RX_THRESHOLD 25
diff --git a/sound/soc/amd/raven/pci-acp3x.c b/sound/soc/amd/raven/pci-acp3x.c
index facec24..94f5f21 100644
--- a/sound/soc/amd/raven/pci-acp3x.c
+++ b/sound/soc/amd/raven/pci-acp3x.c
@@ -16,17 +16,17 @@ struct acp3x_dev_data {
void __iomem *acp3x_base;
bool acp3x_audio_mode;
struct resource *res;
- struct platform_device *pdev;
+ struct platform_device *pdev[ACP3x_DEVS];
};

static int snd_acp3x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
- int ret;
- u32 addr, val;
struct acp3x_dev_data *adata;
- struct platform_device_info pdevinfo;
+ struct platform_device_info pdevinfo[ACP3x_DEVS];
unsigned int irqflags;
+ int ret, i;
+ u32 addr, val;

if (pci_enable_device(pci)) {
dev_err(&pci->dev, "pci_enable_device failed\n");
@@ -56,10 +56,11 @@ static int snd_acp3x_probe(struct pci_dev *pci,
irqflags = 0;

addr = pci_resource_start(pci, 0);
- adata->acp3x_base = ioremap(addr, pci_resource_len(pci, 0));
+ adata->acp3x_base = devm_ioremap(&pci->dev, addr,
+ pci_resource_len(pci, 0));
if (!adata->acp3x_base) {
ret = -ENOMEM;
- goto release_regions;
+ goto disable_msi;
}
pci_set_master(pci);
pci_set_drvdata(pci, adata);
@@ -68,11 +69,11 @@ static int snd_acp3x_probe(struct pci_dev *pci,
switch (val) {
case I2S_MODE:
adata->res = devm_kzalloc(&pci->dev,
- sizeof(struct resource) * 2,
+ sizeof(struct resource) * 4,
GFP_KERNEL);
if (!adata->res) {
ret = -ENOMEM;
- goto unmap_mmio;
+ goto disable_msi;
}

adata->res[0].name = "acp3x_i2s_iomem";
@@ -80,40 +81,67 @@ static int snd_acp3x_probe(struct pci_dev *pci,
adata->res[0].start = addr;
adata->res[0].end = addr + (ACP3x_REG_END - ACP3x_REG_START);

- adata->res[1].name = "acp3x_i2s_irq";
- adata->res[1].flags = IORESOURCE_IRQ;
- adata->res[1].start = pci->irq;
- adata->res[1].end = pci->irq;
+ adata->res[1].name = "acp3x_i2s_sp";
+ adata->res[1].flags = IORESOURCE_MEM;
+ adata->res[1].start = addr + ACP3x_I2STDM_REG_START;
+ adata->res[1].end = addr + ACP3x_I2STDM_REG_END;
+
+ adata->res[2].name = "acp3x_i2s_bt";
+ adata->res[2].flags = IORESOURCE_MEM;
+ adata->res[2].start = addr + ACP3x_BT_TDM_REG_START;
+ adata->res[2].end = addr + ACP3x_BT_TDM_REG_END;
+
+ adata->res[3].name = "acp3x_i2s_irq";
+ adata->res[3].flags = IORESOURCE_IRQ;
+ adata->res[3].start = pci->irq;
+ adata->res[3].end = adata->res[3].start;

adata->acp3x_audio_mode = ACP3x_I2S_MODE;

memset(&pdevinfo, 0, sizeof(pdevinfo));
- pdevinfo.name = "acp3x_rv_i2s";
- pdevinfo.id = 0;
- pdevinfo.parent = &pci->dev;
- pdevinfo.num_res = 2;
- pdevinfo.res = adata->res;
- pdevinfo.data = &irqflags;
- pdevinfo.size_data = sizeof(irqflags);
-
- adata->pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(adata->pdev)) {
- dev_err(&pci->dev, "cannot register %s device\n",
- pdevinfo.name);
- ret = PTR_ERR(adata->pdev);
- goto unmap_mmio;
+ pdevinfo[0].name = "acp3x_rv_i2s_dma";
+ pdevinfo[0].id = 0;
+ pdevinfo[0].parent = &pci->dev;
+ pdevinfo[0].num_res = 4;
+ pdevinfo[0].res = &adata->res[0];
+ pdevinfo[0].data = &irqflags;
+ pdevinfo[0].size_data = sizeof(irqflags);
+
+ pdevinfo[1].name = "acp3x_i2s_playcap";
+ pdevinfo[1].id = 0;
+ pdevinfo[1].parent = &pci->dev;
+ pdevinfo[1].num_res = 1;
+ pdevinfo[1].res = &adata->res[1];
+
+ pdevinfo[2].name = "acp3x_i2s_playcap";
+ pdevinfo[2].id = 1;
+ pdevinfo[2].parent = &pci->dev;
+ pdevinfo[2].num_res = 1;
+ pdevinfo[2].res = &adata->res[2];
+ for (i = 0; i < ACP3x_DEVS ; i++) {
+ adata->pdev[i] =
+ platform_device_register_full(&pdevinfo[i]);
+ if (IS_ERR(adata->pdev[i])) {
+ dev_err(&pci->dev, "cannot register %s device\n",
+ pdevinfo[i].name);
+ ret = PTR_ERR(adata->pdev[i]);
+ goto unregister_devs;
+ }
}
break;
default:
dev_err(&pci->dev, "Invalid ACP audio mode : %d\n", val);
ret = -ENODEV;
- goto unmap_mmio;
+ goto disable_msi;
}
return 0;

-unmap_mmio:
+unregister_devs:
+ if (val == I2S_MODE)
+ for (i = 0 ; i < ACP3x_DEVS ; i++)
+ platform_device_unregister(adata->pdev[i]);
+disable_msi:
pci_disable_msi(pci);
- iounmap(adata->acp3x_base);
release_regions:
pci_release_regions(pci);
disable_pci:
@@ -125,10 +153,12 @@ static int snd_acp3x_probe(struct pci_dev *pci,
static void snd_acp3x_remove(struct pci_dev *pci)
{
struct acp3x_dev_data *adata = pci_get_drvdata(pci);
+ int i;

- platform_device_unregister(adata->pdev);
- iounmap(adata->acp3x_base);
-
+ if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) {
+ for (i = 0 ; i < ACP3x_DEVS ; i++)
+ platform_device_unregister(adata->pdev[i]);
+ }
pci_disable_msi(pci);
pci_release_regions(pci);
pci_disable_device(pci);
@@ -151,6 +181,7 @@ static struct pci_driver acp3x_driver = {

module_pci_driver(acp3x_driver);

+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com");
MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
MODULE_DESCRIPTION("AMD ACP3x PCI driver");
MODULE_LICENSE("GPL v2");
--
2.7.4
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