diff options
| -rw-r--r-- | drivers/w1/masters/ds1wm.c | 31 | ||||
| -rw-r--r-- | include/linux/ds1wm.h | 12 | ||||
| -rw-r--r-- | include/linux/mfd/ds1wm.h | 5 |
3 files changed, 25 insertions, 23 deletions
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 29e144f..f1e6b3d 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -19,7 +19,8 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/delay.h> -#include <linux/ds1wm.h> +#include <linux/mfd/core.h> +#include <linux/mfd/ds1wm.h> #include <asm/io.h> @@ -89,7 +90,7 @@ struct ds1wm_data { void __iomem *map; int bus_shift; /* # of shifts to calc register offsets */ struct platform_device *pdev; - struct ds1wm_platform_data *pdata; + struct mfd_cell *cell; int irq; int active_high; struct clk *clk; @@ -217,8 +218,8 @@ static void ds1wm_up(struct ds1wm_data *ds1wm_data) { int gclk, divisor; - if (ds1wm_data->pdata->enable) - ds1wm_data->pdata->enable(ds1wm_data->pdev); + if (ds1wm_data->cell->enable) + ds1wm_data->cell->enable(ds1wm_data->pdev); gclk = clk_get_rate(ds1wm_data->clk); clk_enable(ds1wm_data->clk); @@ -244,8 +245,8 @@ static void ds1wm_down(struct ds1wm_data *ds1wm_data) ds1wm_write_register(ds1wm_data, DS1WM_INT_EN, ds1wm_data->active_high ? DS1WM_INTEN_IAS : 0); - if (ds1wm_data->pdata->disable) - ds1wm_data->pdata->disable(ds1wm_data->pdev); + if (ds1wm_data->cell->disable) + ds1wm_data->cell->disable(ds1wm_data->pdev); clk_disable(ds1wm_data->clk); } @@ -330,13 +331,18 @@ static struct w1_bus_master ds1wm_master = { static int ds1wm_probe(struct platform_device *pdev) { struct ds1wm_data *ds1wm_data; - struct ds1wm_platform_data *plat; + struct ds1wm_driver_data *plat; struct resource *res; + struct mfd_cell *cell; int ret; if (!pdev) return -ENODEV; + cell = pdev->dev.platform_data; + if (!cell) + return -ENODEV; + ds1wm_data = kzalloc(sizeof(*ds1wm_data), GFP_KERNEL); if (!ds1wm_data) return -ENOMEM; @@ -348,15 +354,18 @@ static int ds1wm_probe(struct platform_device *pdev) ret = -ENXIO; goto err0; } - ds1wm_data->map = ioremap(res->start, res->end - res->start + 1); + ds1wm_data->map = ioremap(res->start, resource_size(res)); if (!ds1wm_data->map) { ret = -ENOMEM; goto err0; } - plat = pdev->dev.platform_data; - ds1wm_data->bus_shift = plat->bus_shift; + plat = cell->driver_data; + + /* calculate bus shift from mem resource */ + ds1wm_data->bus_shift = resource_size(res) >> 3; + ds1wm_data->pdev = pdev; - ds1wm_data->pdata = plat; + ds1wm_data->cell = cell; res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { diff --git a/include/linux/ds1wm.h b/include/linux/ds1wm.h deleted file mode 100644 index d3c65e4..0000000 --- a/include/linux/ds1wm.h +++ /dev/null @@ -1,12 +0,0 @@ -/* platform data for the DS1WM driver */ - -struct ds1wm_platform_data { - int bus_shift; /* number of shifts needed to calculate the - * offset between DS1WM registers; - * e.g. on h5xxx and h2200 this is 2 - * (registers aligned to 4-byte boundaries), - * while on hx4700 this is 1 */ - int active_high; - void (*enable)(struct platform_device *pdev); - void (*disable)(struct platform_device *pdev); -}; diff --git a/include/linux/mfd/ds1wm.h b/include/linux/mfd/ds1wm.h new file mode 100644 index 0000000..d4898ba --- /dev/null +++ b/include/linux/mfd/ds1wm.h @@ -0,0 +1,5 @@ +/* MFD cell driver data for the DS1WM driver */ + +struct ds1wm_driver_data { + int active_high; +}; |