| Message ID | 1413454672-27400-41-git-send-email-maxime.ripard@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Maxime, Thank you for the patch. On Thursday 16 October 2014 12:17:39 Maxime Ripard wrote: > Split the device_control callback of the Xilinx VDMA driver to make use of > the newly introduced callbacks, that will eventually be used to retrieve > slave capabilities. > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> > --- > drivers/dma/xilinx/xilinx_vdma.c | 27 ++++----------------------- > 1 file changed, 4 insertions(+), 23 deletions(-) > > diff --git a/drivers/dma/xilinx/xilinx_vdma.c > b/drivers/dma/xilinx/xilinx_vdma.c index 42a13e8d4607..35024e7b9f9f 100644 > --- a/drivers/dma/xilinx/xilinx_vdma.c > +++ b/drivers/dma/xilinx/xilinx_vdma.c > @@ -996,8 +996,10 @@ error: > * xilinx_vdma_terminate_all - Halt the channel and free descriptors > * @chan: Driver specific VDMA Channel pointer > */ > -static void xilinx_vdma_terminate_all(struct xilinx_vdma_chan *chan) > +static int xilinx_vdma_terminate_all(struct dma_chan *dchan) I'm pretty sure you now miss a return statement at the end of the function. With that fixed, Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > { > + struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); > + > /* Halt the DMA engine */ > xilinx_vdma_halt(chan); > > @@ -1070,27 +1072,6 @@ int xilinx_vdma_channel_set_config(struct dma_chan > *dchan, } > EXPORT_SYMBOL(xilinx_vdma_channel_set_config); > > -/** > - * xilinx_vdma_device_control - Configure DMA channel of the device > - * @dchan: DMA Channel pointer > - * @cmd: DMA control command > - * @arg: Channel configuration > - * > - * Return: '0' on success and failure value on error > - */ > -static int xilinx_vdma_device_control(struct dma_chan *dchan, > - enum dma_ctrl_cmd cmd, unsigned long arg) > -{ > - struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); > - > - if (cmd != DMA_TERMINATE_ALL) > - return -ENXIO; > - > - xilinx_vdma_terminate_all(chan); > - > - return 0; > -} > - > /* > --------------------------------------------------------------------------- > -- * Probe and remove > */ > @@ -1295,7 +1276,7 @@ static int xilinx_vdma_probe(struct platform_device > *pdev) xilinx_vdma_free_chan_resources; > xdev->common.device_prep_interleaved_dma = > xilinx_vdma_dma_prep_interleaved; > - xdev->common.device_control = xilinx_vdma_device_control; > + xdev->common.device_terminate_all = xilinx_vdma_terminate_all; > xdev->common.device_tx_status = xilinx_vdma_tx_status; > xdev->common.device_issue_pending = xilinx_vdma_issue_pending;
diff --git a/drivers/dma/xilinx/xilinx_vdma.c b/drivers/dma/xilinx/xilinx_vdma.c index 42a13e8d4607..35024e7b9f9f 100644 --- a/drivers/dma/xilinx/xilinx_vdma.c +++ b/drivers/dma/xilinx/xilinx_vdma.c @@ -996,8 +996,10 @@ error: * xilinx_vdma_terminate_all - Halt the channel and free descriptors * @chan: Driver specific VDMA Channel pointer */ -static void xilinx_vdma_terminate_all(struct xilinx_vdma_chan *chan) +static int xilinx_vdma_terminate_all(struct dma_chan *dchan) { + struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); + /* Halt the DMA engine */ xilinx_vdma_halt(chan); @@ -1070,27 +1072,6 @@ int xilinx_vdma_channel_set_config(struct dma_chan *dchan, } EXPORT_SYMBOL(xilinx_vdma_channel_set_config); -/** - * xilinx_vdma_device_control - Configure DMA channel of the device - * @dchan: DMA Channel pointer - * @cmd: DMA control command - * @arg: Channel configuration - * - * Return: '0' on success and failure value on error - */ -static int xilinx_vdma_device_control(struct dma_chan *dchan, - enum dma_ctrl_cmd cmd, unsigned long arg) -{ - struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); - - if (cmd != DMA_TERMINATE_ALL) - return -ENXIO; - - xilinx_vdma_terminate_all(chan); - - return 0; -} - /* ----------------------------------------------------------------------------- * Probe and remove */ @@ -1295,7 +1276,7 @@ static int xilinx_vdma_probe(struct platform_device *pdev) xilinx_vdma_free_chan_resources; xdev->common.device_prep_interleaved_dma = xilinx_vdma_dma_prep_interleaved; - xdev->common.device_control = xilinx_vdma_device_control; + xdev->common.device_terminate_all = xilinx_vdma_terminate_all; xdev->common.device_tx_status = xilinx_vdma_tx_status; xdev->common.device_issue_pending = xilinx_vdma_issue_pending;
Split the device_control callback of the Xilinx VDMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> --- drivers/dma/xilinx/xilinx_vdma.c | 27 ++++----------------------- 1 file changed, 4 insertions(+), 23 deletions(-)