Commit bddd5a2b authored by Lee Jones's avatar Lee Jones Committed by Linus Walleij
Browse files

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: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 0a05ef0e

drivers/dma/ste_dma40.c

+4 −0
Original line number Diff line number Diff line
@@ -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);

}