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ARM: at91: atmel-ssc: add platform device id table 

Add platform device id to check whether the SSC controller support
pdc or dam for data transfer

If match "at91rm9200_ssc", which support pdc for data transfer
If match "at91sam9g45_ssc", which support dma for data transfer

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Bo Shen 2012-11-06 13:57:51 +08:00 коммит произвёл Mark Brown
Родитель 90b4d60c61
Коммит 636036d29a
14 изменённых файлов: 54 добавлений и 26 удалений
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6
arch/arm/mach-at91/at91rm9200.c
Просмотреть файл

@ -184,9 +184,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.2", &ssc2_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),

6
arch/arm/mach-at91/at91rm9200_devices.c
Просмотреть файл

@ -752,7 +752,7 @@ static struct resource ssc0_resources[] = {
};
static struct platform_device at91rm9200_ssc0_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc0_dmamask,
@ -794,7 +794,7 @@ static struct resource ssc1_resources[] = {
};
static struct platform_device at91rm9200_ssc1_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 1,
.dev = {
.dma_mask = &ssc1_dmamask,
@ -836,7 +836,7 @@ static struct resource ssc2_resources[] = {
};
static struct platform_device at91rm9200_ssc2_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 2,
.dev = {
.dma_mask = &ssc2_dmamask,

2
arch/arm/mach-at91/at91sam9260.c
Просмотреть файл

@ -210,7 +210,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tc3_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk),
/* more usart lookup table for DT entries */

2
arch/arm/mach-at91/at91sam9260_devices.c
Просмотреть файл

@ -742,7 +742,7 @@ static struct resource ssc_resources[] = {
};
static struct platform_device at91sam9260_ssc_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc_dmamask,

6
arch/arm/mach-at91/at91sam9261.c
Просмотреть файл

@ -174,9 +174,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.2", &ssc2_clk),
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261.0", &twi_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi_clk),

6
arch/arm/mach-at91/at91sam9261_devices.c
Просмотреть файл

@ -706,7 +706,7 @@ static struct resource ssc0_resources[] = {
};
static struct platform_device at91sam9261_ssc0_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc0_dmamask,
@ -748,7 +748,7 @@ static struct resource ssc1_resources[] = {
};
static struct platform_device at91sam9261_ssc1_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 1,
.dev = {
.dma_mask = &ssc1_dmamask,
@ -790,7 +790,7 @@ static struct resource ssc2_resources[] = {
};
static struct platform_device at91sam9261_ssc2_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 2,
.dev = {
.dma_mask = &ssc2_dmamask,

4
arch/arm/mach-at91/at91sam9263.c
Просмотреть файл

@ -186,8 +186,8 @@ static struct clk *periph_clocks[] __initdata = {
static struct clk_lookup periph_clocks_lookups[] = {
/* One additional fake clock for macb_hclk */
CLKDEV_CON_ID("hclk", &macb_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.0", &mmc0_clk),
CLKDEV_CON_DEV_ID("mci_clk", "atmel_mci.1", &mmc1_clk),
CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),

4
arch/arm/mach-at91/at91sam9263_devices.c
Просмотреть файл

@ -1199,7 +1199,7 @@ static struct resource ssc0_resources[] = {
};
static struct platform_device at91sam9263_ssc0_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc0_dmamask,
@ -1241,7 +1241,7 @@ static struct resource ssc1_resources[] = {
};
static struct platform_device at91sam9263_ssc1_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 1,
.dev = {
.dma_mask = &ssc1_dmamask,

4
arch/arm/mach-at91/at91sam9g45.c
Просмотреть файл

@ -239,8 +239,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi0_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.1", &twi1_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "at91sam9g45_ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk),
CLKDEV_CON_DEV_ID(NULL, "atmel_sha", &aestdessha_clk),
CLKDEV_CON_DEV_ID(NULL, "atmel_tdes", &aestdessha_clk),

4
arch/arm/mach-at91/at91sam9g45_devices.c
Просмотреть файл

@ -1459,7 +1459,7 @@ static struct resource ssc0_resources[] = {
};
static struct platform_device at91sam9g45_ssc0_device = {
.name = "ssc",
.name = "at91sam9g45_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc0_dmamask,
@ -1501,7 +1501,7 @@ static struct resource ssc1_resources[] = {
};
static struct platform_device at91sam9g45_ssc1_device = {
.name = "ssc",
.name = "at91sam9g45_ssc",
.id = 1,
.dev = {
.dma_mask = &ssc1_dmamask,

4
arch/arm/mach-at91/at91sam9rl.c
Просмотреть файл

@ -184,8 +184,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "at91rm9200_ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi0_clk),
CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.1", &twi1_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),

4
arch/arm/mach-at91/at91sam9rl_devices.c
Просмотреть файл

@ -832,7 +832,7 @@ static struct resource ssc0_resources[] = {
};
static struct platform_device at91sam9rl_ssc0_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 0,
.dev = {
.dma_mask = &ssc0_dmamask,
@ -874,7 +874,7 @@ static struct resource ssc1_resources[] = {
};
static struct platform_device at91sam9rl_ssc1_device = {
.name = "ssc",
.name = "at91rm9200_ssc",
.id = 1,
.dev = {
.dma_mask = &ssc1_dmamask,

23
drivers/misc/atmel-ssc.c
Просмотреть файл

@ -68,6 +68,26 @@ void ssc_free(struct ssc_device *ssc)
}
EXPORT_SYMBOL(ssc_free);
static struct atmel_ssc_platform_data at91rm9200_config = {
.use_dma = 0,
};
static struct atmel_ssc_platform_data at91sam9g45_config = {
.use_dma = 1,
};
static const struct platform_device_id atmel_ssc_devtypes[] = {
{
.name = "at91rm9200_ssc",
.driver_data = (unsigned long) &at91rm9200_config,
}, {
.name = "at91sam9g45_ssc",
.driver_data = (unsigned long) &at91sam9g45_config,
}, {
/* sentinel */
}
};
static int ssc_probe(struct platform_device *pdev)
{
struct resource *regs;
@ -80,6 +100,8 @@ static int ssc_probe(struct platform_device *pdev)
}
ssc->pdev = pdev;
ssc->pdata = (struct atmel_ssc_platform_data *)
platform_get_device_id(pdev)->driver_data;
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!regs) {
@ -139,6 +161,7 @@ static struct platform_driver ssc_driver = {
.name = "ssc",
.owner = THIS_MODULE,
},
.id_table = atmel_ssc_devtypes,
.probe = ssc_probe,
.remove = __devexit_p(ssc_remove),
};

5
include/linux/atmel-ssc.h
Просмотреть файл

@ -5,10 +5,15 @@
#include <linux/list.h>
#include <linux/io.h>
struct atmel_ssc_platform_data {
int use_dma;
};
struct ssc_device {
struct list_head list;
void __iomem *regs;
struct platform_device *pdev;
struct atmel_ssc_platform_data *pdata;
struct clk *clk;
int user;
int irq;