+ MFD maintainer
On 13 January 2015 at 05:57, Kuninori Morimoto
<kuninori.morimoto.gx@xxxxxxxxxxx> wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
>
> Current .dma is implemented under tmio_mmc_data.
> It goes to tmio_mmc_host by this patch.
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> ---
> drivers/mmc/host/sh_mobile_sdhi.c | 4 ++--
> drivers/mmc/host/tmio_mmc.h | 11 +++++++++++
> drivers/mmc/host/tmio_mmc_dma.c | 24 +++++++++++-------------
> include/linux/mfd/tmio.h | 11 -----------
> 4 files changed, 24 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
> index cf062c4..288e78d 100644
> --- a/drivers/mmc/host/sh_mobile_sdhi.c
> +++ b/drivers/mmc/host/sh_mobile_sdhi.c
> @@ -213,6 +213,8 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
> goto eprobe;
> }
>
> + host->dma = dma_priv;
> +
> mmc_data->clk_enable = sh_mobile_sdhi_clk_enable;
> mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
> mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
> @@ -241,8 +243,6 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
> dma_priv->alignment_shift = 1; /* 2-byte alignment */
> dma_priv->filter = shdma_chan_filter;
>
> - mmc_data->dma = dma_priv;
> -
> /*
> * All SDHI blocks support 2-byte and larger block sizes in 4-bit
> * bus width mode.
> diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
> index 60d6747..49a2559 100644
> --- a/drivers/mmc/host/tmio_mmc.h
> +++ b/drivers/mmc/host/tmio_mmc.h
> @@ -40,6 +40,16 @@
>
> struct tmio_mmc_data;
>
> +struct tmio_mmc_dma {
> + void *chan_priv_tx;
> + void *chan_priv_rx;
> + int slave_id_tx;
> + int slave_id_rx;
> + int alignment_shift;
> + dma_addr_t dma_rx_offset;
> + bool (*filter)(struct dma_chan *chan, void *arg);
> +};
> +
> struct tmio_mmc_host {
> void __iomem *ctl;
> struct mmc_command *cmd;
> @@ -59,6 +69,7 @@ struct tmio_mmc_host {
>
> struct platform_device *pdev;
> struct tmio_mmc_data *pdata;
> + struct tmio_mmc_dma *dma;
>
> /* DMA support */
> bool force_pio;
> diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
> index 7d07738..6c214d6 100644
> --- a/drivers/mmc/host/tmio_mmc_dma.c
> +++ b/drivers/mmc/host/tmio_mmc_dma.c
> @@ -49,11 +49,10 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
> struct scatterlist *sg = host->sg_ptr, *sg_tmp;
> struct dma_async_tx_descriptor *desc = NULL;
> struct dma_chan *chan = host->chan_rx;
> - struct tmio_mmc_data *pdata = host->pdata;
> dma_cookie_t cookie;
> int ret, i;
> bool aligned = true, multiple = true;
> - unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
> + unsigned int align = (1 << host->dma->alignment_shift) - 1;
>
> for_each_sg(sg, sg_tmp, host->sg_len, i) {
> if (sg_tmp->offset & align)
> @@ -126,11 +125,10 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
> struct scatterlist *sg = host->sg_ptr, *sg_tmp;
> struct dma_async_tx_descriptor *desc = NULL;
> struct dma_chan *chan = host->chan_tx;
> - struct tmio_mmc_data *pdata = host->pdata;
> dma_cookie_t cookie;
> int ret, i;
> bool aligned = true, multiple = true;
> - unsigned int align = (1 << pdata->dma->alignment_shift) - 1;
> + unsigned int align = (1 << host->dma->alignment_shift) - 1;
>
> for_each_sg(sg, sg_tmp, host->sg_len, i) {
> if (sg_tmp->offset & align)
> @@ -262,8 +260,8 @@ out:
> void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata)
> {
> /* We can only either use DMA for both Tx and Rx or not use it at all */
> - if (!pdata->dma || (!host->pdev->dev.of_node &&
> - (!pdata->dma->chan_priv_tx || !pdata->dma->chan_priv_rx)))
> + if (!host->dma || (!host->pdev->dev.of_node &&
> + (!host->dma->chan_priv_tx || !host->dma->chan_priv_rx)))
> return;
>
> if (!host->chan_tx && !host->chan_rx) {
> @@ -280,7 +278,7 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
> dma_cap_set(DMA_SLAVE, mask);
>
> host->chan_tx = dma_request_slave_channel_compat(mask,
> - pdata->dma->filter, pdata->dma->chan_priv_tx,
> + host->dma->filter, host->dma->chan_priv_tx,
> &host->pdev->dev, "tx");
> dev_dbg(&host->pdev->dev, "%s: TX: got channel %p\n", __func__,
> host->chan_tx);
> @@ -288,8 +286,8 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
> if (!host->chan_tx)
> return;
>
> - if (pdata->dma->chan_priv_tx)
> - cfg.slave_id = pdata->dma->slave_id_tx;
> + if (host->dma->chan_priv_tx)
> + cfg.slave_id = host->dma->slave_id_tx;
> cfg.direction = DMA_MEM_TO_DEV;
> cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->pdata->bus_shift);
> cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
> @@ -299,7 +297,7 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
> goto ecfgtx;
>
> host->chan_rx = dma_request_slave_channel_compat(mask,
> - pdata->dma->filter, pdata->dma->chan_priv_rx,
> + host->dma->filter, host->dma->chan_priv_rx,
> &host->pdev->dev, "rx");
> dev_dbg(&host->pdev->dev, "%s: RX: got channel %p\n", __func__,
> host->chan_rx);
> @@ -307,10 +305,10 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat
> if (!host->chan_rx)
> goto ereqrx;
>
> - if (pdata->dma->chan_priv_rx)
> - cfg.slave_id = pdata->dma->slave_id_rx;
> + if (host->dma->chan_priv_rx)
> + cfg.slave_id = host->dma->slave_id_rx;
> cfg.direction = DMA_DEV_TO_MEM;
> - cfg.src_addr = cfg.dst_addr + pdata->dma->dma_rx_offset;
> + cfg.src_addr = cfg.dst_addr + host->dma->dma_rx_offset;
> cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
> cfg.dst_addr = 0;
> ret = dmaengine_slave_config(host->chan_rx, &cfg);
> diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
> index c7d9af0..8d708c7 100644
> --- a/include/linux/mfd/tmio.h
> +++ b/include/linux/mfd/tmio.h
> @@ -112,16 +112,6 @@ void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state);
>
> struct dma_chan;
>
> -struct tmio_mmc_dma {
> - void *chan_priv_tx;
> - void *chan_priv_rx;
> - int slave_id_tx;
> - int slave_id_rx;
> - int alignment_shift;
> - dma_addr_t dma_rx_offset;
> - bool (*filter)(struct dma_chan *chan, void *arg);
> -};
> -
> struct tmio_mmc_host;
>
> /*
> @@ -134,7 +124,6 @@ struct tmio_mmc_data {
> unsigned long flags;
> unsigned long bus_shift;
> u32 ocr_mask; /* available voltages */
> - struct tmio_mmc_dma *dma;
> unsigned int cd_gpio;
> void (*set_pwr)(struct platform_device *host, int state);
> void (*set_clk_div)(struct platform_device *host, int state);
> --
> 1.7.9.5
>
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