diff options
| author |   Samuel Ortiz <sameo@linux.intel.com> | 2011-04-08 00:43:01 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-04-12 11:13:00 +0200 |
| commit | e710d7d5a9cab1041b7a3cf9e655b75d92786857 (patch) | |
| tree | 916fc4d0e3e42e9fbd0e9051fe19c5bb082f4e8f /drivers | |
| parent | Linux 2.6.39-rc3 (diff) | |
| download | linux-dev-e710d7d5a9cab1041b7a3cf9e655b75d92786857.tar.xz linux-dev-e710d7d5a9cab1041b7a3cf9e655b75d92786857.zip | |
mfd: Fetch cell pointer from platform_device->mfd_cell
In order for MFD drivers to fetch their cell pointer but also their
platform data one, an mfd cell pointer is added to the platform_device
structure.
That allows all MFD sub devices drivers to be MFD agnostic, unless
they really need to access their MFD cell data. Most of them don't,
especially the ones for IPs used by both MFD and non MFD SoCs.
Cc: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Greg KH <gregkh@suse.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/platform.c | 1 | ||||
| -rw-r--r-- | drivers/mfd/mfd-core.c | 16 |
2 files changed, 15 insertions, 2 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index f051cfff18af..6c3a2bdc527a 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -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); } diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index d01574d98870..f4c8c844b913 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -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: |