[PATCH 1/6] dma: mxs-dma: use global stmp_device functionality

[Marek Vasut]

Dear Shawn Guo,

> From: Dong Aisheng <dong.aisheng at linaro.org>
> 
> This can get rid of the mach-dependency.
> 
> Cc: Vinod Koul <vinod.koul at intel.com>
> Cc: Dan Williams <dan.j.williams at intel.com>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>
> Cc: Huang Shijie <b32955 at freescale.com>
> Reviewed-by: Marek Vasut <marek.vasut at gmail.com>

Acked-by: Marek Vasut <marex at denx.de>

> Signed-off-by: Dong Aisheng <dong.aisheng at linaro.org>
> Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> Acked-by: Wolfram Sang <w.sang at pengutronix.de>
> ---
>  drivers/dma/Kconfig   |    1 +
>  drivers/dma/mxs-dma.c |   26 +++++++++++++-------------
>  2 files changed, 14 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index ef378b5..aadeb5b 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -238,6 +238,7 @@ config IMX_DMA
>  config MXS_DMA
>  	bool "MXS DMA support"
>  	depends on SOC_IMX23 || SOC_IMX28
> +	select STMP_DEVICE
>  	select DMA_ENGINE
>  	help
>  	  Support the MXS DMA engine. This engine including APBH-DMA
> diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
> index 655d4ce..bd27818 100644
> --- a/drivers/dma/mxs-dma.c
> +++ b/drivers/dma/mxs-dma.c
> @@ -23,10 +23,10 @@
>  #include <linux/dmaengine.h>
>  #include <linux/delay.h>
>  #include <linux/fsl/mxs-dma.h>
> +#include <linux/stmp_device.h>
> 
>  #include <asm/irq.h>
>  #include <mach/mxs.h>
> -#include <mach/common.h>
> 
>  #include "dmaengine.h"
> 
> @@ -138,10 +138,10 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan
> *mxs_chan)
> 
>  	if (dma_is_apbh() && apbh_is_old())
>  		writel(1 << (chan_id + BP_APBH_CTRL0_RESET_CHANNEL),
> -			mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
>  	else
>  		writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
> -			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + 
STMP_OFFSET_REG_SET);
>  }
> 
>  static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
> @@ -170,10 +170,10 @@ static void mxs_dma_pause_chan(struct mxs_dma_chan
> *mxs_chan) /* freeze the channel */
>  	if (dma_is_apbh() && apbh_is_old())
>  		writel(1 << chan_id,
> -			mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
>  	else
>  		writel(1 << chan_id,
> -			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + 
STMP_OFFSET_REG_SET);
> 
>  	mxs_chan->status = DMA_PAUSED;
>  }
> @@ -186,10 +186,10 @@ static void mxs_dma_resume_chan(struct mxs_dma_chan
> *mxs_chan) /* unfreeze the channel */
>  	if (dma_is_apbh() && apbh_is_old())
>  		writel(1 << chan_id,
> -			mxs_dma->base + HW_APBHX_CTRL0 + MXS_CLR_ADDR);
> +			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_CLR);
>  	else
>  		writel(1 << chan_id,
> -			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + MXS_CLR_ADDR);
> +			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + 
STMP_OFFSET_REG_CLR);
> 
>  	mxs_chan->status = DMA_IN_PROGRESS;
>  }
> @@ -220,11 +220,11 @@ static irqreturn_t mxs_dma_int_handler(int irq, void
> *dev_id) /* completion status */
>  	stat1 = readl(mxs_dma->base + HW_APBHX_CTRL1);
>  	stat1 &= MXS_DMA_CHANNELS_MASK;
> -	writel(stat1, mxs_dma->base + HW_APBHX_CTRL1 + MXS_CLR_ADDR);
> +	writel(stat1, mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_CLR);
> 
>  	/* error status */
>  	stat2 = readl(mxs_dma->base + HW_APBHX_CTRL2);
> -	writel(stat2, mxs_dma->base + HW_APBHX_CTRL2 + MXS_CLR_ADDR);
> +	writel(stat2, mxs_dma->base + HW_APBHX_CTRL2 + STMP_OFFSET_REG_CLR);
> 
>  	/*
>  	 * When both completion and error of termination bits set at the
> @@ -567,7 +567,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine
> *mxs_dma) if (ret)
>  		return ret;
> 
> -	ret = mxs_reset_block(mxs_dma->base);
> +	ret = stmp_reset_block(mxs_dma->base);
>  	if (ret)
>  		goto err_out;
> 
> @@ -580,14 +580,14 @@ static int __init mxs_dma_init(struct mxs_dma_engine
> *mxs_dma) /* enable apbh burst */
>  	if (dma_is_apbh()) {
>  		writel(BM_APBH_CTRL0_APB_BURST_EN,
> -			mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
>  		writel(BM_APBH_CTRL0_APB_BURST8_EN,
> -			mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR);
> +			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
>  	}
> 
>  	/* enable irq for all the channels */
>  	writel(MXS_DMA_CHANNELS_MASK << MXS_DMA_CHANNELS,
> -		mxs_dma->base + HW_APBHX_CTRL1 + MXS_SET_ADDR);
> +		mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_SET);
> 
>  err_out:
>  	clk_disable_unprepare(mxs_dma->clk);

Best regards,
Marek Vasut