Re: [PATCH v2] SDMA: Fixing bug in omap_dma_set_global_params()

[Randy Dunlap]

On Mon,  5 Oct 2009 14:12:43 +0530 Anuj Aggarwal wrote:

> Argument tparams was not being used to program
> global register GCR.HI_THREAD_RESERVED. This patch fixes the same.
> 
> Signed-off-by: Anuj Aggarwal <anuj.aggarwal@xxxxxx>
> ---
>  arch/arm/plat-omap/dma.c |   15 +++++++++------
>  1 files changed, 9 insertions(+), 6 deletions(-)


Hi,
Someone please convert all of this source file to correct kernel-doc notation.

Thanks.

> diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
> index fd3154a..0eb676d 100644
> --- a/arch/arm/plat-omap/dma.c
> +++ b/arch/arm/plat-omap/dma.c
> @@ -829,10 +829,10 @@ EXPORT_SYMBOL(omap_free_dma);
>   *
>   * @param arb_rate
>   * @param max_fifo_depth
> - * @param tparams - Number of thereads to reserve : DMA_THREAD_RESERVE_NORM
> - * 						    DMA_THREAD_RESERVE_ONET
> - * 						    DMA_THREAD_RESERVE_TWOT
> - * 						    DMA_THREAD_RESERVE_THREET
> + * @param tparams - Number of threads to reserve : DMA_THREAD_RESERVE_NORM
> + * 						   DMA_THREAD_RESERVE_ONET
> + * 						   DMA_THREAD_RESERVE_TWOT
> + * 						   DMA_THREAD_RESERVE_THREET
>   */
>  void
>  omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams)
> @@ -844,11 +844,14 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams)
>  		return;
>  	}
>  
> +	if (max_fifo_depth == 0)
> +		max_fifo_depth = 1;
>  	if (arb_rate == 0)
>  		arb_rate = 1;
>  
> -	reg = (arb_rate & 0xff) << 16;
> -	reg |= (0xff & max_fifo_depth);
> +	reg = 0xff & max_fifo_depth;
> +	reg |= (0x3 & tparams) << 12;
> +	reg |= (arb_rate & 0xff) << 16;
>  
>  	dma_write(reg, GCR);
>  }
> -- 


---
~Randy
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/