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ASoC: fsi: Add FSI2 device support

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ARM-SHMOBILE series have FIFO-buffered serial interface 2 (FSI2)
device which is advanced version of FSI.
This patch add simple support for it.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kuninori Morimoto 2010-03-25 19:15:53 +09:00 • committed by Mark Brown
parent 4a942b457e
commit cc780d380a
2 changed files with 48 additions and 11 deletions
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3
sound/soc/sh/Kconfig
View file

@ -1,5 +1,5 @@
menu "SoC Audio support for SuperH" menu "SoC Audio support for SuperH"
depends on SUPERH depends on SUPERH || ARCH_SHMOBILE
config SND_SOC_PCM_SH7760 config SND_SOC_PCM_SH7760
tristate "SoC Audio support for Renesas SH7760" tristate "SoC Audio support for Renesas SH7760"
@ -22,7 +22,6 @@ config SND_SOC_SH4_SSI
config SND_SOC_SH4_FSI config SND_SOC_SH4_FSI
tristate "SH4 FSI support" tristate "SH4 FSI support"
depends on CPU_SUBTYPE_SH7724
help help
This option enables FSI sound support This option enables FSI sound support

56
sound/soc/sh/fsi.c
View file

@ -40,6 +40,10 @@
#define MUTE_ST 0x0028 #define MUTE_ST 0x0028
#define REG_END MUTE_ST #define REG_END MUTE_ST
#define CPU_INT_ST 0x01F4
#define CPU_IEMSK 0x01F8
#define CPU_IMSK 0x01FC
#define INT_ST 0x0200 #define INT_ST 0x0200
#define IEMSK 0x0204 #define IEMSK 0x0204
#define IMSK 0x0208 #define IMSK 0x0208
@ -47,7 +51,7 @@
#define CLK_RST 0x0210 #define CLK_RST 0x0210
#define SOFT_RST 0x0214 #define SOFT_RST 0x0214
#define FIFO_SZ 0x0218 #define FIFO_SZ 0x0218
#define MREG_START INT_ST #define MREG_START CPU_INT_ST
#define MREG_END FIFO_SZ #define MREG_END FIFO_SZ
/* DO_FMT */ /* DO_FMT */
@ -116,11 +120,18 @@ struct fsi_priv {
int periods; int periods;
}; };
struct fsi_regs {
u32 int_st;
u32 iemsk;
u32 imsk;
};
struct fsi_master { struct fsi_master {
void __iomem *base; void __iomem *base;
int irq; int irq;
struct fsi_priv fsia; struct fsi_priv fsia;
struct fsi_priv fsib; struct fsi_priv fsib;
struct fsi_regs *regs;
struct sh_fsi_platform_info *info; struct sh_fsi_platform_info *info;
spinlock_t lock; spinlock_t lock;
}; };
@ -337,8 +348,8 @@ static void fsi_irq_enable(struct fsi_priv *fsi, int is_play)
u32 data = fsi_port_ab_io_bit(fsi, is_play); u32 data = fsi_port_ab_io_bit(fsi, is_play);
struct fsi_master *master = fsi_get_master(fsi); struct fsi_master *master = fsi_get_master(fsi);
fsi_master_mask_set(master, IMSK, data, data); fsi_master_mask_set(master, master->regs->imsk, data, data);
fsi_master_mask_set(master, IEMSK, data, data); fsi_master_mask_set(master, master->regs->iemsk, data, data);
} }
static void fsi_irq_disable(struct fsi_priv *fsi, int is_play) static void fsi_irq_disable(struct fsi_priv *fsi, int is_play)
@ -346,18 +357,18 @@ static void fsi_irq_disable(struct fsi_priv *fsi, int is_play)
u32 data = fsi_port_ab_io_bit(fsi, is_play); u32 data = fsi_port_ab_io_bit(fsi, is_play);
struct fsi_master *master = fsi_get_master(fsi); struct fsi_master *master = fsi_get_master(fsi);
fsi_master_mask_set(master, IMSK, data, 0); fsi_master_mask_set(master, master->regs->imsk, data, 0);
fsi_master_mask_set(master, IEMSK, data, 0); fsi_master_mask_set(master, master->regs->iemsk, data, 0);
} }
static u32 fsi_irq_get_status(struct fsi_master *master) static u32 fsi_irq_get_status(struct fsi_master *master)
{ {
return fsi_master_read(master, INT_ST); return fsi_master_read(master, master->regs->int_st);
} }
static void fsi_irq_clear_all_status(struct fsi_master *master) static void fsi_irq_clear_all_status(struct fsi_master *master)
{ {
fsi_master_write(master, INT_ST, 0x0000000); fsi_master_write(master, master->regs->int_st, 0x0000000);
} }
static void fsi_irq_clear_status(struct fsi_priv *fsi) static void fsi_irq_clear_status(struct fsi_priv *fsi)
@ -369,7 +380,7 @@ static void fsi_irq_clear_status(struct fsi_priv *fsi)
data |= fsi_port_ab_io_bit(fsi, 1); data |= fsi_port_ab_io_bit(fsi, 1);
/* clear interrupt factor */ /* clear interrupt factor */
fsi_master_mask_set(master, INT_ST, data, 0); fsi_master_mask_set(master, master->regs->int_st, data, 0);
} }
/************************************************************************ /************************************************************************
@ -953,6 +964,7 @@ EXPORT_SYMBOL_GPL(fsi_soc_platform);
static int fsi_probe(struct platform_device *pdev) static int fsi_probe(struct platform_device *pdev)
{ {
struct fsi_master *master; struct fsi_master *master;
const struct platform_device_id *id_entry;
struct resource *res; struct resource *res;
unsigned int irq; unsigned int irq;
int ret; int ret;
@ -962,6 +974,12 @@ static int fsi_probe(struct platform_device *pdev)
return -ENODEV; return -ENODEV;
} }
id_entry = pdev->id_entry;
if (!id_entry) {
dev_err(&pdev->dev, "unknown fsi device\n");
return -ENODEV;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0); irq = platform_get_irq(pdev, 0);
if (!res || (int)irq <= 0) { if (!res || (int)irq <= 0) {
@ -990,6 +1008,7 @@ static int fsi_probe(struct platform_device *pdev)
master->fsia.master = master; master->fsia.master = master;
master->fsib.base = master->base + 0x40; master->fsib.base = master->base + 0x40;
master->fsib.master = master; master->fsib.master = master;
master->regs = (struct fsi_regs *)id_entry->driver_data;
spin_lock_init(&master->lock); spin_lock_init(&master->lock);
pm_runtime_enable(&pdev->dev); pm_runtime_enable(&pdev->dev);
@ -1002,7 +1021,8 @@ static int fsi_probe(struct platform_device *pdev)
fsi_soft_all_reset(master); fsi_soft_all_reset(master);
ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED, "fsi", master); ret = request_irq(irq, &fsi_interrupt, IRQF_DISABLED,
id_entry->name, master);
if (ret) { if (ret) {
dev_err(&pdev->dev, "irq request err\n"); dev_err(&pdev->dev, "irq request err\n");
goto exit_iounmap; goto exit_iounmap;
@ -1069,6 +1089,23 @@ static struct dev_pm_ops fsi_pm_ops = {
.runtime_resume = fsi_runtime_nop, .runtime_resume = fsi_runtime_nop,
}; };
static struct fsi_regs fsi_regs = {
.int_st = INT_ST,
.iemsk = IEMSK,
.imsk = IMSK,
};
static struct fsi_regs fsi2_regs = {
.int_st = CPU_INT_ST,
.iemsk = CPU_IEMSK,
.imsk = CPU_IMSK,
};
static struct platform_device_id fsi_id_table[] = {
{ "sh_fsi", (kernel_ulong_t)&fsi_regs },
{ "sh_fsi2", (kernel_ulong_t)&fsi2_regs },
};
static struct platform_driver fsi_driver = { static struct platform_driver fsi_driver = {
.driver = { .driver = {
.name = "sh_fsi", .name = "sh_fsi",
@ -1076,6 +1113,7 @@ static struct platform_driver fsi_driver = {
}, },
.probe = fsi_probe, .probe = fsi_probe,
.remove = fsi_remove, .remove = fsi_remove,
.id_table = fsi_id_table,
}; };
static int __init fsi_mobile_init(void) static int __init fsi_mobile_init(void)