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    Subject[PATCH 02/10] dma: ste_dma40: Parse flags property for new 'high priority channel' request
    Date
    This is used for MSP (audio) devices which is about to be fully DT:ed.

    Acked-by: Vinod Koul <vinod.koul@intel.com>
    Acked-by: Linus Walleij <linus.walleij@linaro.org>
    Signed-off-by: Lee Jones <lee.jones@linaro.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


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