提交 e328f05d 编写于 作者: L Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: Fetch cell pointer from platform_device->mfd_cell
......@@ -149,6 +149,7 @@ static void platform_device_release(struct device *dev)
of_device_node_put(&pa->pdev.dev);
kfree(pa->pdev.dev.platform_data);
kfree(pa->pdev.mfd_cell);
kfree(pa->pdev.resource);
kfree(pa);
}
......
......@@ -55,6 +55,19 @@ int mfd_cell_disable(struct platform_device *pdev)
}
EXPORT_SYMBOL(mfd_cell_disable);
static int mfd_platform_add_cell(struct platform_device *pdev,
const struct mfd_cell *cell)
{
if (!cell)
return 0;
pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
if (!pdev->mfd_cell)
return -ENOMEM;
return 0;
}
static int mfd_add_device(struct device *parent, int id,
const struct mfd_cell *cell,
struct resource *mem_base,
......@@ -75,7 +88,7 @@ static int mfd_add_device(struct device *parent, int id,
pdev->dev.parent = parent;
ret = platform_device_add_data(pdev, cell, sizeof(*cell));
ret = mfd_platform_add_cell(pdev, cell);
if (ret)
goto fail_res;
......@@ -123,7 +136,6 @@ static int mfd_add_device(struct device *parent, int id,
return 0;
/* platform_device_del(pdev); */
fail_res:
kfree(res);
fail_device:
......
......@@ -86,16 +86,25 @@ extern int mfd_clone_cell(const char *cell, const char **clones,
*/
static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
{
return pdev->dev.platform_data;
return pdev->mfd_cell;
}
/*
* Given a platform device that's been created by mfd_add_devices(), fetch
* the .mfd_data entry from the mfd_cell that created it.
* Otherwise just return the platform_data pointer.
* This maintains compatibility with platform drivers whose devices aren't
* created by the mfd layer, and expect platform_data to contain what would've
* otherwise been in mfd_data.
*/
static inline void *mfd_get_data(struct platform_device *pdev)
{
return mfd_get_cell(pdev)->mfd_data;
const struct mfd_cell *cell = mfd_get_cell(pdev);
if (cell)
return cell->mfd_data;
else
return pdev->dev.platform_data;
}
extern int mfd_add_devices(struct device *parent, int id,
......
......@@ -14,6 +14,8 @@
#include <linux/device.h>
#include <linux/mod_devicetable.h>
struct mfd_cell;
struct platform_device {
const char * name;
int id;
......@@ -23,6 +25,9 @@ struct platform_device {
const struct platform_device_id *id_entry;
/* MFD cell pointer */
struct mfd_cell *mfd_cell;
/* arch specific additions */
struct pdev_archdata archdata;
};
......
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