xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
포크 0
코드 이슈 풀 리퀘스트 Actions Packages Projects 릴리즈 위키 활동

mfd: convert DS1WM to use MFD core

소스 검색 
This patch converts the DS1WM driver into an MFD cell. It also
calculates the bus_shift parameter from the memory resource size.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
Philipp Zabel
2009-02-17 10:06:41 +01:00
committed by Samuel Ortiz
부모 3206450355
커밋 a23a175795
3개의 변경된 파일과 25개의 추가작업 그리고 23개의 파일을 삭제
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/w1/masters/ds1wm.c
파일 보기

@@ -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) {