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>

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 5269825..400d1a3 100644 (file)
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -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),

diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 1e122bc..f40925a 100644 (file)
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -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,

diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index f820261..d14ab6a 100644 (file)
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -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 */

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 46edfaf..df7bebf 100644 (file)
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -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,

diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 04295c0..c7b6057 100644 (file)
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -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),

diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index b948769..d8afd21 100644 (file)
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -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,

diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index d6f9c23..b87be18 100644 (file)
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -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),

diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index cb85da2..025c970 100644 (file)
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -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,

diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 84af1b5..f4f96a6 100644 (file)
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -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),

diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b159607..27e3bf6 100644 (file)
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -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,

diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 72e9084..4110b54 100644 (file)
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -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),

diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 5047bdc..b656110 100644 (file)
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -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,

diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index ac00f83..f40abd8 100644 (file)
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -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),
 };

diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h
index 4eb3175..1ca0e32 100644 (file)
--- a/include/linux/atmel-ssc.h
+++ b/include/linux/atmel-ssc.h
@@ -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;