aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mfd/sh_mobile_sdhi.c
diff options
context:
space:
mode:
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2010-05-19 18:34:16 +0000
committerPaul Mundt <lethal@linux-sh.org>2010-05-22 16:51:18 +0900
commit056676dabd9f4c69a6adcad208e9aa2ca7241400 (patch)
tree0113922d7128d285e052cd08156f283365ec86df /drivers/mfd/sh_mobile_sdhi.c
parent42a4533976d922ff3272fad17dd52fe3682899dd (diff)
downloadkernel_samsung_smdk4412-056676dabd9f4c69a6adcad208e9aa2ca7241400.zip
kernel_samsung_smdk4412-056676dabd9f4c69a6adcad208e9aa2ca7241400.tar.gz
kernel_samsung_smdk4412-056676dabd9f4c69a6adcad208e9aa2ca7241400.tar.bz2
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/mfd/sh_mobile_sdhi.c')
-rw-r--r--drivers/mfd/sh_mobile_sdhi.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c
index 497f91b..555374d 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);