diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/sta2x11-mfd.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 0cac2013bbf6..6d12ab42aba3 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -135,6 +135,28 @@ u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, } EXPORT_SYMBOL(__sta2x11_mfd_mask); +int sta2x11_mfd_get_regs_data(struct platform_device *dev, + enum sta2x11_mfd_plat_dev index, + void __iomem **regs, + spinlock_t **lock) +{ + struct pci_dev *pdev = *(struct pci_dev **)(dev->dev.platform_data); + struct sta2x11_mfd *mfd; + + if (!pdev) + return -ENODEV; + mfd = sta2x11_mfd_find(pdev); + if (!mfd) + return -ENODEV; + if (index >= sta2x11_n_mfd_plat_devs) + return -ENODEV; + *regs = mfd->regs[index]; + *lock = &mfd->lock[index]; + pr_debug("%s %d *regs = %p\n", __func__, __LINE__, *regs); + return *regs ? 0 : -ENODEV; +} +EXPORT_SYMBOL(sta2x11_mfd_get_regs_data); + /* * Special sta2x11-mfd regmap lock/unlock functions */ |