diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2010-05-19 18:34:16 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-05-22 16:51:18 +0900 |
| commit | 056676dabd9f4c69a6adcad208e9aa2ca7241400 (patch) | |
| tree | 0113922d7128d285e052cd08156f283365ec86df /drivers | |
| parent | 42a4533976d922ff3272fad17dd52fe3682899dd (diff) | |
| download | linux-rpi-056676dabd9f4c69a6adcad208e9aa2ca7241400.tar.gz linux-rpi-056676dabd9f4c69a6adcad208e9aa2ca7241400.tar.bz2 linux-rpi-056676dabd9f4c69a6adcad208e9aa2ca7241400.zip | |
sh: prepare the SDHI MFD driver to pass DMA configuration to tmio_mmc.c
Pass DMA slave IDs from platform down to the tmio_mmc driver, to be used
for dmaengine configuration.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mfd/sh_mobile_sdhi.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c index 497f91b6138e..555374db8662 100644 --- a/drivers/mfd/sh_mobile_sdhi.c +++ b/drivers/mfd/sh_mobile_sdhi.c @@ -26,11 +26,15 @@ #include <linux/mfd/core.h> #include <linux/mfd/tmio.h> #include <linux/mfd/sh_mobile_sdhi.h> +#include <linux/sh_dma.h> struct sh_mobile_sdhi { struct clk *clk; struct tmio_mmc_data mmc_data; struct mfd_cell cell_mmc; + struct sh_dmae_slave param_tx; + struct sh_dmae_slave param_rx; + struct tmio_mmc_dma dma_priv; }; static struct resource sh_mobile_sdhi_resources[] = { @@ -64,6 +68,8 @@ static void sh_mobile_sdhi_set_pwr(struct platform_device *tmio, int state) static int __init sh_mobile_sdhi_probe(struct platform_device *pdev) { struct sh_mobile_sdhi *priv; + struct tmio_mmc_data *mmc_data; + struct sh_mobile_sdhi_info *p = pdev->dev.platform_data; struct resource *mem; char clk_name[8]; int ret, irq; @@ -85,6 +91,8 @@ static int __init sh_mobile_sdhi_probe(struct platform_device *pdev) return -ENOMEM; } + mmc_data = &priv->mmc_data; + snprintf(clk_name, sizeof(clk_name), "sdhi%d", pdev->id); priv->clk = clk_get(&pdev->dev, clk_name); if (IS_ERR(priv->clk)) { @@ -96,12 +104,20 @@ static int __init sh_mobile_sdhi_probe(struct platform_device *pdev) clk_enable(priv->clk); - priv->mmc_data.hclk = clk_get_rate(priv->clk); - priv->mmc_data.set_pwr = sh_mobile_sdhi_set_pwr; - priv->mmc_data.capabilities = MMC_CAP_MMC_HIGHSPEED; + mmc_data->hclk = clk_get_rate(priv->clk); + mmc_data->set_pwr = sh_mobile_sdhi_set_pwr; + mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED; + + if (p && p->dma_slave_tx >= 0 && p->dma_slave_rx >= 0) { + priv->param_tx.slave_id = p->dma_slave_tx; + priv->param_rx.slave_id = p->dma_slave_rx; + priv->dma_priv.chan_priv_tx = &priv->param_tx; + priv->dma_priv.chan_priv_rx = &priv->param_rx; + mmc_data->dma = &priv->dma_priv; + } memcpy(&priv->cell_mmc, &sh_mobile_sdhi_cell, sizeof(priv->cell_mmc)); - priv->cell_mmc.driver_data = &priv->mmc_data; + priv->cell_mmc.driver_data = mmc_data; priv->cell_mmc.platform_data = &priv->cell_mmc; priv->cell_mmc.data_size = sizeof(priv->cell_mmc); |