From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinod.koul@intel.com (Vinod Koul) Date: Wed, 13 Nov 2013 19:46:18 +0530 Subject: [PATCH 02/13] dma: ste_dma40: Parse flags property for new 'high priority channel' request In-Reply-To: <1383732985-18928-3-git-send-email-lee.jones@linaro.org> References: <1383732985-18928-1-git-send-email-lee.jones@linaro.org> <1383732985-18928-3-git-send-email-lee.jones@linaro.org> Message-ID: <20131113141617.GB8834@intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Nov 06, 2013 at 10:16:14AM +0000, Lee Jones wrote: > This is used for MSP (audio) devices which is about to be fully DT:ed. > > Cc: Vinod Koul > Signed-off-by: Lee Jones Acked-by: Vinod Koul -- ~Vinod > --- > 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 > --