Hi Manjunatha,
I just have a couple of minor comments.
On 7/29/2010 11:58 AM, G, Manjunath Kondaiah wrote:
This patches introduces OMAP DMA device attributes for using the same in
DMA platform driver for all OMAP's and HWMOD database(OMAP2PLUS onwards)
Signed-off-by: Manjunatha GK<[email protected]>
---
arch/arm/plat-omap/include/plat/dma.h | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/include/plat/dma.h
b/arch/arm/plat-omap/include/plat/dma.h
index 02232ca..ff60f11 100644
--- a/arch/arm/plat-omap/include/plat/dma.h
+++ b/arch/arm/plat-omap/include/plat/dma.h
@@ -398,6 +398,22 @@
#define DMA_CH_PRIO_HIGH 0x1
#define DMA_CH_PRIO_LOW 0x0 /* Def */
+/* Attributes for OMAP DMA Contrllers */
+#define ENABLE_1510_MODE (1<< 0)
+#define DMA_LINKED_LCH (1<< 1)
+#define GLOBAL_PRIORITY (1<< 2)
+#define RESERVE_CHANNEL (1<< 3)
+#define SRC_PORT (2<< 3)
+#define DST_PORT (2<< 4)
+#define IS_CSSA_32 (2<< 5)
+#define IS_CDSA_32 (2<< 6)
+#define SRC_INDEX (4<< 6)
+#define DST_INDEX (4<< 7)
+#define IS_BURST_ONLY4 (4<< 8)
+#define CLEAR_CSR_ON_READ (4<< 9)
+#define IS_WORD_16 (8<< 9)
+#define IS_RW_PRIORIY (8<< 0xA)
It is a minor detail, but why are you shifting both side of the
operator? It is really confusing, cannot you just do 1 << X?
With 0 < X < 13.
+
enum omap_dma_burst_mode {
OMAP_DMA_DATA_BURST_DIS = 0,
OMAP_DMA_DATA_BURST_4,
@@ -463,6 +479,12 @@ struct omap_dma_channel_params {
#endif
};
+struct omap_dma_dev_attr {
+ u32 dma_dev_attr;
That name is not very meaningful, maybe dma_cap for capability or
something else will be better.
+ u16 dma_lch_count;
+ u16 dma_chan_count;
+ struct omap_dma_lch *dma_chan;
In general, I think that there are too many "dma_" prefix in that
structure. It is already inside a dma_XXX struct so I don't think that
adding an extra prefix to every attribute is needed.
Regards,
Benoit
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