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| author | Heiko Stuebner <heiko@sntech.de> | 2012-04-25 03:06:53 +0200 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-04-25 03:06:53 +0200 |
| commit | ad6c1d43964dcba57bfe20b7185af5a71f94a1b7 (patch) | |
| tree | 109dbb0480440eed903f3dfa0d0ba13e8284f1df /arch/arm/mach-s3c24xx/dma-s3c2443.c | |
| parent | ARM: S3C24XX: Add forgotten clock lookup table to S3C2443 (diff) | |
| download | linux-ad6c1d43964dcba57bfe20b7185af5a71f94a1b7.tar.xz linux-ad6c1d43964dcba57bfe20b7185af5a71f94a1b7.zip | |
ARM: S3C24XX: claim spi channels for hsspi in dma-s3c2443
SoCs starting with the S3C2443 contain SPI controllers compatible with the
spi-s3c64xx driver and therefore need separate dma channels for rx and tx.
This patch introduces dma channel declarations for these and changes the
dma-s3c2443.c accordingly.
None of the older SoCs use the spi-dma at all. Most boards bitbang their
spi use and the spi-s3c24xx driver also does not use the dma system.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c24xx/dma-s3c2443.c')
| -rw-r--r-- | arch/arm/mach-s3c24xx/dma-s3c2443.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/arm/mach-s3c24xx/dma-s3c2443.c b/arch/arm/mach-s3c24xx/dma-s3c2443.c index e227c472a40a..2d94228d2866 100644 --- a/arch/arm/mach-s3c24xx/dma-s3c2443.c +++ b/arch/arm/mach-s3c24xx/dma-s3c2443.c @@ -55,12 +55,20 @@ static struct s3c24xx_dma_map __initdata s3c2443_dma_mappings[] = { .name = "sdi", .channels = MAP(S3C2443_DMAREQSEL_SDI), }, - [DMACH_SPI0] = { - .name = "spi0", + [DMACH_SPI0_RX] = { + .name = "spi0-rx", + .channels = MAP(S3C2443_DMAREQSEL_SPI0RX), + }, + [DMACH_SPI0_TX] = { + .name = "spi0-tx", .channels = MAP(S3C2443_DMAREQSEL_SPI0TX), }, - [DMACH_SPI1] = { /* only on S3C2443/S3C2450 */ - .name = "spi1", + [DMACH_SPI1_RX] = { /* only on S3C2443/S3C2450 */ + .name = "spi1-rx", + .channels = MAP(S3C2443_DMAREQSEL_SPI1RX), + }, + [DMACH_SPI1_TX] = { /* only on S3C2443/S3C2450 */ + .name = "spi1-tx", .channels = MAP(S3C2443_DMAREQSEL_SPI1TX), }, [DMACH_UART0] = { |