diff options
| author | Lee Jones | 2013-11-19 12:07:41 +0100 |
|---|---|---|
| committer | Linus Walleij | 2013-11-26 21:01:58 +0100 |
| commit | bddd5a2bb335b101dc75233aea313b01d3459603 (patch) | |
| tree | f1e398745ef06d31bb5ddbbee91ce71194d6d9df /drivers/dma/ste_dma40.c | |
| parent | dma: ste_dma40: Expand DT binding to accept 'high-priority channel' flag (diff) | |
| download | kernel-qcow2-linux-bddd5a2bb335b101dc75233aea313b01d3459603.tar.gz kernel-qcow2-linux-bddd5a2bb335b101dc75233aea313b01d3459603.tar.xz kernel-qcow2-linux-bddd5a2bb335b101dc75233aea313b01d3459603.zip | |
dma: ste_dma40: Parse flags property for new 'high priority channel' request
This is used for MSP (audio) devices which is about to be fully DT:ed.
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/dma/ste_dma40.c')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index b8c031b7de4e..00a2de957b23 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2409,6 +2409,7 @@ static void d40_set_prio_realtime(struct d40_chan *d40c) #define D40_DT_FLAGS_DIR(flags) ((flags >> 1) & 0x1) #define D40_DT_FLAGS_BIG_ENDIAN(flags) ((flags >> 2) & 0x1) #define D40_DT_FLAGS_FIXED_CHAN(flags) ((flags >> 3) & 0x1) +#define D40_DT_FLAGS_HIGH_PRIO(flags) ((flags >> 4) & 0x1) static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, struct of_dma *ofdma) @@ -2446,6 +2447,9 @@ static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, cfg.use_fixed_channel = true; } + if (D40_DT_FLAGS_HIGH_PRIO(flags)) + cfg.high_priority = true; + return dma_request_channel(cap, stedma40_filter, &cfg); } |