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Date: Tue, 19 Nov 2013 11:07:41 +0000 From: Lee Jones <lee.jones@...aro.org> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: linus.walleij@...aro.org, Lee Jones <lee.jones@...aro.org> Subject: [PATCH 02/10] 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@...el.com> Acked-by: Linus Walleij <linus.walleij@...aro.org> Signed-off-by: Lee Jones <lee.jones@...aro.org> --- drivers/dma/ste_dma40.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index b8c031b..00a2de9 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); } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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