diff options
| author | Bo Shen <voice.shen@atmel.com> | 2012-11-06 05:57:51 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-06 09:13:19 (GMT) |
| commit | 636036d29a20154b897571e1d5949faac98bfb7c (patch) | |
| tree | 4d9516e395ff9952794ad83bfd3e8d8e79930fc0 /drivers/misc/atmel-ssc.c | |
| parent | 90b4d60c6103105a634c495003c2ce931f075f63 (diff) | |
| download | linux-636036d29a20154b897571e1d5949faac98bfb7c.tar.xz | |
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>
Diffstat (limited to 'drivers/misc/atmel-ssc.c')
| -rw-r--r-- | drivers/misc/atmel-ssc.c | 23 |
1 files changed, 23 insertions, 0 deletions
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), }; |