linux-kernel - Re: [PATCH 12/32] ARM: ux500: Remove superfluous 'psize' attribute from Audio platform data

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Date:	Wed, 1 May 2013 15:42:13 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	arnd@...db.de, linus.walleij@...ricsson.com
Subject: Re: [PATCH 12/32] ARM: ux500: Remove superfluous 'psize' attribute
 from Audio platform data

On Thu, 18 Apr 2013, Lee Jones wrote:

> 'psize' is used to calculate the maximum DMA burst size. However it
> is only taken into consideration when editing the DMA channel's
> configuration. The Audio DMA platform data is only used to allocate
> a channel, not configure it. That will be done at a later date within
> the MSP driver.
> 
> We're also removing comments which are no longer required, as
> 'data_width' is no longer set in any device's platform data period.
> 
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
>  arch/arm/mach-ux500/board-mop500-audio.c |   38 ------------------------------
>  1 file changed, 38 deletions(-)
> 
> diff --git a/arch/arm/mach-ux500/board-mop500-audio.c b/arch/arm/mach-ux500/board-mop500-audio.c
> index f012cfa..972bec0 100644
> --- a/arch/arm/mach-ux500/board-mop500-audio.c
> +++ b/arch/arm/mach-ux500/board-mop500-audio.c
> @@ -23,25 +23,13 @@
>  static struct stedma40_chan_cfg msp0_dma_rx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_PERIPH_TO_MEM,
> -
>  	.dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
> -
> -	.src_info.psize = STEDMA40_PSIZE_LOG_4,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_4,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  static struct stedma40_chan_cfg msp0_dma_tx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_MEM_TO_PERIPH,
> -
>  	.dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
> -
> -	.src_info.psize = STEDMA40_PSIZE_LOG_4,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_4,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  struct msp_i2s_platform_data msp0_platform_data = {
> @@ -53,25 +41,13 @@ struct msp_i2s_platform_data msp0_platform_data = {
>  static struct stedma40_chan_cfg msp1_dma_rx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_PERIPH_TO_MEM,
> -
>  	.dev_type = DB8500_DMA_DEV30_MSP3,
> -
> -	.src_info.psize = STEDMA40_PSIZE_LOG_4,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_4,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  static struct stedma40_chan_cfg msp1_dma_tx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_MEM_TO_PERIPH,
> -
>  	.dev_type = DB8500_DMA_DEV30_MSP1,
> -
> -	.src_info.psize = STEDMA40_PSIZE_LOG_4,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_4,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  struct msp_i2s_platform_data msp1_platform_data = {
> @@ -83,29 +59,15 @@ struct msp_i2s_platform_data msp1_platform_data = {
>  static struct stedma40_chan_cfg msp2_dma_rx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_PERIPH_TO_MEM,
> -
>  	.dev_type = DB8500_DMA_DEV14_MSP2,
> -
> -	/* MSP2 DMA doesn't work with PSIZE == 4 on DB8500v2 */
> -	.src_info.psize = STEDMA40_PSIZE_LOG_1,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_1,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  static struct stedma40_chan_cfg msp2_dma_tx = {
>  	.high_priority = true,
>  	.dir = STEDMA40_MEM_TO_PERIPH,
> -
>  	.dev_type = DB8500_DMA_DEV14_MSP2,
> -
> -	.src_info.psize = STEDMA40_PSIZE_LOG_4,
> -	.dst_info.psize = STEDMA40_PSIZE_LOG_4,
> -
>  	.use_fixed_channel = true,
>  	.phy_channel = 1,
> -
> -	/* data_width is set during configuration */
>  };
>  
>  static struct platform_device *db8500_add_msp_i2s(struct device *parent,

Linus, poke.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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