[PATCH] dmaengine: at_hdmac: declare slave capabilities
Nicolas Ferre
nicolas.ferre at atmel.com
Mon Jan 12 05:28:13 PST 2015
Le 06/01/2015 17:36, Ludovic Desroches a écrit :
> Declare slave capabilities to suppress "this driver doesn't support generic
> slave capabilities reporting" warning.
>
> Signed-off-by: Ludovic Desroches <ludovic.desroches at atmel.com>
Okay:
Acked-by: Nicolas Ferre <nicolas.ferre at atmel.com>
Thanks Ludovic.
Bye.
> ---
> drivers/dma/at_hdmac.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
> index 86450b3..1e1a4c5 100644
> --- a/drivers/dma/at_hdmac.c
> +++ b/drivers/dma/at_hdmac.c
> @@ -42,6 +42,11 @@
> #define ATC_DEFAULT_CFG (ATC_FIFOCFG_HALFFIFO)
> #define ATC_DEFAULT_CTRLB (ATC_SIF(AT_DMA_MEM_IF) \
> |ATC_DIF(AT_DMA_MEM_IF))
> +#define ATC_DMA_BUSWIDTHS\
> + (BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\
> + BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |\
> + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |\
> + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES))
>
> /*
> * Initial number of descriptors to allocate for each channel. This could
> @@ -1531,6 +1536,10 @@ static int __init at_dma_probe(struct platform_device *pdev)
> atdma->dma_common.device_pause = atc_pause;
> atdma->dma_common.device_resume = atc_resume;
> atdma->dma_common.device_terminate_all = atc_terminate_all;
> + atdma->dma_common.src_addr_widths = ATC_DMA_BUSWIDTHS;
> + atdma->dma_common.dst_addr_widths = ATC_DMA_BUSWIDTHS;
> + atdma->dma_common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
> + atdma->dma_common.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
> }
>
> dma_writel(atdma, EN, AT_DMA_ENABLE);
>
--
Nicolas Ferre
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