From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinod.koul@intel.com (Vinod Koul) Date: Mon, 23 Sep 2013 15:42:22 +0530 Subject: [alsa-devel] [PATCH 23/51] DMA-API: dma: pl08x: add dma_set_mask_and_coherent() call In-Reply-To: References: <20130919212235.GD12758@n2100.arm.linux.org.uk> Message-ID: <20130923101222.GH17188@intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Sep 19, 2013 at 10:48:01PM +0100, Russell King wrote: > The DMA API requires drivers to call the appropriate dma_set_mask() > functions before doing any DMA mapping. Add this required call to > the AMBA PL08x driver. > > Signed-off-by: Russell King Acked-by: Vinod Koul ~Vinod > --- > drivers/dma/amba-pl08x.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c > index fce46c5..e51a983 100644 > --- a/drivers/dma/amba-pl08x.c > +++ b/drivers/dma/amba-pl08x.c > @@ -2055,6 +2055,11 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) > if (ret) > return ret; > > + /* Ensure that we can do DMA */ > + ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32)); > + if (ret) > + goto out_no_pl08x; > + > /* Create the driver state holder */ > pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL); > if (!pl08x) { > -- > 1.7.4.4 > > _______________________________________________ > Alsa-devel mailing list > Alsa-devel at alsa-project.org > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel --