| Message ID | 1351668420-18447-1-git-send-email-voice.shen@atmel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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; >
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;
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> --- 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(-)