Re: [PATCH 09/15] net: irda: pxaficp_ir: remove the dmaengine compat need

[Robert Jarzmik]

Robert Jarzmik <robert.jarz...@free.fr> writes:

> As the pxa architecture switched towards the dmaengine slave map, the
> old compatibility mechanism to acquire the dma requestor line number and
> priority are not needed anymore.
>
> This patch simplifies the dma resource acquisition, using the more
> generic function dma_request_slave_channel().
>
> Signed-off-by: Robert Jarzmik <robert.jarz...@free.fr>
Samuel, could I have your ack please ?

Cheers.

--
Robert

PS: The submitted patch
> ---
>  drivers/staging/irda/drivers/pxaficp_ir.c | 14 ++------------
>  1 file changed, 2 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/staging/irda/drivers/pxaficp_ir.c 
> b/drivers/staging/irda/drivers/pxaficp_ir.c
> index 2ea00a6531f9..9dd6e21dc11e 100644
> --- a/drivers/staging/irda/drivers/pxaficp_ir.c
> +++ b/drivers/staging/irda/drivers/pxaficp_ir.c
> @@ -20,7 +20,6 @@
>  #include <linux/clk.h>
>  #include <linux/dmaengine.h>
>  #include <linux/dma-mapping.h>
> -#include <linux/dma/pxa-dma.h>
>  #include <linux/gpio.h>
>  #include <linux/slab.h>
>  #include <linux/sched/clock.h>
> @@ -735,9 +734,7 @@ static void pxa_irda_shutdown(struct pxa_irda *si)
>  static int pxa_irda_start(struct net_device *dev)
>  {
>       struct pxa_irda *si = netdev_priv(dev);
> -     dma_cap_mask_t mask;
>       struct dma_slave_config config;
> -     struct pxad_param param;
>       int err;
>  
>       si->speed = 9600;
> @@ -757,9 +754,6 @@ static int pxa_irda_start(struct net_device *dev)
>       disable_irq(si->icp_irq);
>  
>       err = -EBUSY;
> -     dma_cap_zero(mask);
> -     dma_cap_set(DMA_SLAVE, mask);
> -     param.prio = PXAD_PRIO_LOWEST;
>  
>       memset(&config, 0, sizeof(config));
>       config.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
> @@ -769,15 +763,11 @@ static int pxa_irda_start(struct net_device *dev)
>       config.src_maxburst = 32;
>       config.dst_maxburst = 32;
>  
> -     param.drcmr = si->drcmr_rx;
> -     si->rxdma = dma_request_slave_channel_compat(mask, pxad_filter_fn,
> -                                                  &param, &dev->dev, "rx");
> +     si->rxdma = dma_request_slave_channel(&dev->dev, "rx");
>       if (!si->rxdma)
>               goto err_rx_dma;
>  
> -     param.drcmr = si->drcmr_tx;
> -     si->txdma = dma_request_slave_channel_compat(mask, pxad_filter_fn,
> -                                                  &param, &dev->dev, "tx");
> +     si->txdma = dma_request_slave_channel(&dev->dev, "tx");
>       if (!si->txdma)
>               goto err_tx_dma;