On 10/31/2012 08:26 AM, Bo Shen :
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
No change between v1 and v2
arch/arm/mach-at91/at91rm9200.c | 6 +++--- arch/arm/mach-at91/at91rm9200_devices.c | 6 +++--- arch/arm/mach-at91/at91sam9260.c | 2 +- arch/arm/mach-at91/at91sam9260_devices.c | 2 +- arch/arm/mach-at91/at91sam9261.c | 6 +++--- arch/arm/mach-at91/at91sam9261_devices.c | 6 +++--- arch/arm/mach-at91/at91sam9263.c | 4 ++-- arch/arm/mach-at91/at91sam9263_devices.c | 4 ++-- arch/arm/mach-at91/at91sam9g45.c | 4 ++-- arch/arm/mach-at91/at91sam9g45_devices.c | 4 ++-- arch/arm/mach-at91/at91sam9rl.c | 4 ++-- arch/arm/mach-at91/at91sam9rl_devices.c | 4 ++-- drivers/misc/atmel-ssc.c | 23 +++++++++++++++++++++++ include/linux/atmel-ssc.h | 5 +++++ 14 files changed, 54 insertions(+), 26 deletions(-)
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index b4f0565..85d53c5 100644 --- 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", &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 a563189..59ceea1 100644 --- 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 ad29f93..2c8aab0 100644 --- 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", &twi_clk), CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20", &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 805ef95..9cfdc3f 100644 --- 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 8d999eb..4e8c56e 100644 --- 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", &twi_clk), CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10", &twi_clk),
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 9752f17..299637f 100644 --- 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 6a01d03..95a5471 100644 --- 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 8dde220..df89a00 100644 --- 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 --- 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 --- 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 --- 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 d6ca054..01220c7 100644 --- 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 --- 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 --- 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;