diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2013-04-11 22:42:03 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-12 14:54:58 +0200 |
| commit | 788437273fa8b824810ea9a23f7ed4d7fdb2949a (patch) | |
| tree | 79ba33292f981697274cf29534e07617fa196fc2 /arch/arm/plat-samsung/devs.c | |
| parent | spi-gpio: init CS before spi_bitbang_setup() (diff) | |
| download | linux-788437273fa8b824810ea9a23f7ed4d7fdb2949a.tar.xz linux-788437273fa8b824810ea9a23f7ed4d7fdb2949a.zip | |
spi: s3c64xx: move to generic dmaengine API
The spi-s3c64xx uses a Samsung proprietary interface for
talking to the DMA engine, which does not work with
multiplatform kernels.
This version of the patch leaves the old code in place,
behind an #ifdef. This can be removed in the future,
after the s3c64xx platform start supporting the regular
dmaengine interface. An earlier version of this patch was
tested successfully on exynos5250 by Padma Venkat.
The conversion was rather mechanical, since the samsung
interface is just a shallow wrapper around the dmaengine
interface.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/plat-samsung/devs.c')
| -rw-r--r-- | arch/arm/plat-samsung/devs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 51afedda9ab6..03db14d8ace9 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/amba/pl330.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/interrupt.h> @@ -1552,6 +1553,9 @@ void __init s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi0_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi0); } @@ -1590,6 +1594,9 @@ void __init s3c64xx_spi1_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi1_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi1); } @@ -1628,6 +1635,9 @@ void __init s3c64xx_spi2_set_platdata(int (*cfg_gpio)(void), int src_clk_nr, pd.num_cs = num_cs; pd.src_clk_nr = src_clk_nr; pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi2_cfg_gpio; +#ifdef CONFIG_PL330_DMA + pd.filter = pl330_filter; +#endif s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi2); } |