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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2016-08-04 12:56:12 +0300 |
|---|---|---|
| committer | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2016-08-10 12:20:10 +0300 |
| commit | 971466bff47483e70e38a3f0ae0d55e86e9fdeee (patch) | |
| tree | eae1f0ae657122357aaf105b7c85994e15d3c66e /arch/arm | |
| parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
| download | linux-971466bff47483e70e38a3f0ae0d55e86e9fdeee.tar.xz | |
ARM: S3C24XX: Add dma_mask assignments for DMA devices
The dma_mask assignments seem to be missed during refactoring
of arch/arm/mach-s3c24xx. Add them to avoid DMA allocation
failures. Without this patch sound is broken on s3c24xx
with errors reported like:
s3c24xx-dma s3c2410-dma.0: coherent DMA mask is unset
ALSA pcmC0D0p,0:: cannot preallocate for size 524288
s3c24xx-iis s3c24xx-iis: Failed to get DMA channel capabilities,
falling back to period counting: -6
s3c24xx-dma s3c2410-dma.0: coherent DMA mask is unset
...
ALSA pcmC0D0c,0:: cannot preallocate for size 524288
s3c24xx-iis s3c24xx-iis: Failed to get DMA channel capabilities,
falling back to period counting: -6
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-s3c24xx/common.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c index bf50328107bd..fe7485dc7fb5 100644 --- a/arch/arm/mach-s3c24xx/common.c +++ b/arch/arm/mach-s3c24xx/common.c @@ -21,7 +21,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - +#include <linux/dma-mapping.h> #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> @@ -304,6 +304,8 @@ struct s3c24xx_uart_resources s3c2410_uart_resources[] __initdata = { }, }; +#define s3c24xx_device_dma_mask (*((u64[]) { DMA_BIT_MASK(32) })) + #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \ defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442) static struct resource s3c2410_dma_resource[] = { @@ -354,7 +356,9 @@ struct platform_device s3c2410_device_dma = { .num_resources = ARRAY_SIZE(s3c2410_dma_resource), .resource = s3c2410_dma_resource, .dev = { - .platform_data = &s3c2410_dma_platdata, + .dma_mask = &s3c24xx_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s3c2410_dma_platdata, }, }; #endif @@ -395,7 +399,9 @@ struct platform_device s3c2412_device_dma = { .num_resources = ARRAY_SIZE(s3c2410_dma_resource), .resource = s3c2410_dma_resource, .dev = { - .platform_data = &s3c2412_dma_platdata, + .dma_mask = &s3c24xx_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s3c2412_dma_platdata, }, }; #endif @@ -451,7 +457,9 @@ struct platform_device s3c2440_device_dma = { .num_resources = ARRAY_SIZE(s3c2410_dma_resource), .resource = s3c2410_dma_resource, .dev = { - .platform_data = &s3c2440_dma_platdata, + .dma_mask = &s3c24xx_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s3c2440_dma_platdata, }, }; #endif @@ -503,7 +511,9 @@ struct platform_device s3c2443_device_dma = { .num_resources = ARRAY_SIZE(s3c2443_dma_resource), .resource = s3c2443_dma_resource, .dev = { - .platform_data = &s3c2443_dma_platdata, + .dma_mask = &s3c24xx_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &s3c2443_dma_platdata, }, }; #endif |