DMA: PL330: move filter function into driver

The dma channel selection filter function is moved from plat-samsung
into the pl330 driver. In additon to that, a check is added in the
filter function to ensure that the channel on which the filter has
been invoked is pl330 channel instance (and avoid any incorrect
access of chan->private in a system with multiple types of DMA
drivers).

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c
index 93a994a5dd8..889c2c22325 100644
--- a/arch/arm/plat-samsung/dma-ops.c
+++ b/arch/arm/plat-samsung/dma-ops.c
@@ -18,12 +18,6 @@
 
 #include <mach/dma.h>
 
-static inline bool pl330_filter(struct dma_chan *chan, void *param)
-{
-        struct dma_pl330_peri *peri = chan->private;
-        return peri->peri_id == (unsigned)param;
-}
-
 static unsigned samsung_dmadev_request(enum dma_ch dma_ch,
                                 struct samsung_dma_info *info)
 {