Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / mfd / sta2x11-mfd.c
diff --git a/kernel/drivers/mfd/sta2x11-mfd.c b/kernel/drivers/mfd/sta2x11-mfd.c
new file mode 100644 (file)
index 0000000..b3e5c6f
--- /dev/null
@@ -0,0 +1,676 @@
+/*
+ * Copyright (c) 2009-2011 Wind River Systems, Inc.
+ * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini, Davide Ciminaghi)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/sta2x11-mfd.h>
+#include <linux/regmap.h>
+
+#include <asm/sta2x11.h>
+
+static inline int __reg_within_range(unsigned int r,
+                                    unsigned int start,
+                                    unsigned int end)
+{
+       return ((r >= start) && (r <= end));
+}
+
+/* This describes STA2X11 MFD chip for us, we may have several */
+struct sta2x11_mfd {
+       struct sta2x11_instance *instance;
+       struct regmap *regmap[sta2x11_n_mfd_plat_devs];
+       spinlock_t lock[sta2x11_n_mfd_plat_devs];
+       struct list_head list;
+       void __iomem *regs[sta2x11_n_mfd_plat_devs];
+};
+
+static LIST_HEAD(sta2x11_mfd_list);
+
+/* Three functions to act on the list */
+static struct sta2x11_mfd *sta2x11_mfd_find(struct pci_dev *pdev)
+{
+       struct sta2x11_instance *instance;
+       struct sta2x11_mfd *mfd;
+
+       if (!pdev && !list_empty(&sta2x11_mfd_list)) {
+               pr_warning("%s: Unspecified device, "
+                           "using first instance\n", __func__);
+               return list_entry(sta2x11_mfd_list.next,
+                                 struct sta2x11_mfd, list);
+       }
+
+       instance = sta2x11_get_instance(pdev);
+       if (!instance)
+               return NULL;
+       list_for_each_entry(mfd, &sta2x11_mfd_list, list) {
+               if (mfd->instance == instance)
+                       return mfd;
+       }
+       return NULL;
+}
+
+static int sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags)
+{
+       int i;
+       struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+       struct sta2x11_instance *instance;
+
+       if (mfd)
+               return -EBUSY;
+       instance = sta2x11_get_instance(pdev);
+       if (!instance)
+               return -EINVAL;
+       mfd = kzalloc(sizeof(*mfd), flags);
+       if (!mfd)
+               return -ENOMEM;
+       INIT_LIST_HEAD(&mfd->list);
+       for (i = 0; i < ARRAY_SIZE(mfd->lock); i++)
+               spin_lock_init(&mfd->lock[i]);
+       mfd->instance = instance;
+       list_add(&mfd->list, &sta2x11_mfd_list);
+       return 0;
+}
+
+/* This function is exported and is not expected to fail */
+u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val,
+                      enum sta2x11_mfd_plat_dev index)
+{
+       struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev);
+       u32 r;
+       unsigned long flags;
+       void __iomem *regs;
+
+       if (!mfd) {
+               dev_warn(&pdev->dev, ": can't access sctl regs\n");
+               return 0;
+       }
+
+       regs = mfd->regs[index];
+       if (!regs) {
+               dev_warn(&pdev->dev, ": system ctl not initialized\n");
+               return 0;
+       }
+       spin_lock_irqsave(&mfd->lock[index], flags);
+       r = readl(regs + reg);
+       r &= ~mask;
+       r |= val;
+       if (mask)
+               writel(r, regs + reg);
+       spin_unlock_irqrestore(&mfd->lock[index], flags);
+       return r;
+}
+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_get_platdata(&dev->dev);
+       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
+ */
+
+static void sta2x11_regmap_lock(void *__lock)
+{
+       spinlock_t *lock = __lock;
+       spin_lock(lock);
+}
+
+static void sta2x11_regmap_unlock(void *__lock)
+{
+       spinlock_t *lock = __lock;
+       spin_unlock(lock);
+}
+
+/* OTP (one time programmable registers do not require locking */
+static void sta2x11_regmap_nolock(void *__lock)
+{
+}
+
+static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = {
+       [sta2x11_sctl] = STA2X11_MFD_SCTL_NAME,
+       [sta2x11_apbreg] = STA2X11_MFD_APBREG_NAME,
+       [sta2x11_apb_soc_regs] = STA2X11_MFD_APB_SOC_REGS_NAME,
+       [sta2x11_scr] = STA2X11_MFD_SCR_NAME,
+};
+
+static bool sta2x11_sctl_writeable_reg(struct device *dev, unsigned int reg)
+{
+       return !__reg_within_range(reg, SCTL_SCPCIECSBRST, SCTL_SCRSTSTA);
+}
+
+static struct regmap_config sta2x11_sctl_regmap_config = {
+       .reg_bits = 32,
+       .reg_stride = 4,
+       .val_bits = 32,
+       .lock = sta2x11_regmap_lock,
+       .unlock = sta2x11_regmap_unlock,
+       .max_register = SCTL_SCRSTSTA,
+       .writeable_reg = sta2x11_sctl_writeable_reg,
+};
+
+static bool sta2x11_scr_readable_reg(struct device *dev, unsigned int reg)
+{
+       return (reg == STA2X11_SECR_CR) ||
+               __reg_within_range(reg, STA2X11_SECR_FVR0, STA2X11_SECR_FVR1);
+}
+
+static bool sta2x11_scr_writeable_reg(struct device *dev, unsigned int reg)
+{
+       return false;
+}
+
+static struct regmap_config sta2x11_scr_regmap_config = {
+       .reg_bits = 32,
+       .reg_stride = 4,
+       .val_bits = 32,
+       .lock = sta2x11_regmap_nolock,
+       .unlock = sta2x11_regmap_nolock,
+       .max_register = STA2X11_SECR_FVR1,
+       .readable_reg = sta2x11_scr_readable_reg,
+       .writeable_reg = sta2x11_scr_writeable_reg,
+};
+
+static bool sta2x11_apbreg_readable_reg(struct device *dev, unsigned int reg)
+{
+       /* Two blocks (CAN and MLB, SARAC) 0x100 bytes apart */
+       if (reg >= APBREG_BSR_SARAC)
+               reg -= APBREG_BSR_SARAC;
+       switch (reg) {
+       case APBREG_BSR:
+       case APBREG_PAER:
+       case APBREG_PWAC:
+       case APBREG_PRAC:
+       case APBREG_PCG:
+       case APBREG_PUR:
+       case APBREG_EMU_PCG:
+               return true;
+       default:
+               return false;
+       }
+}
+
+static bool sta2x11_apbreg_writeable_reg(struct device *dev, unsigned int reg)
+{
+       if (reg >= APBREG_BSR_SARAC)
+               reg -= APBREG_BSR_SARAC;
+       if (!sta2x11_apbreg_readable_reg(dev, reg))
+               return false;
+       return reg != APBREG_PAER;
+}
+
+static struct regmap_config sta2x11_apbreg_regmap_config = {
+       .reg_bits = 32,
+       .reg_stride = 4,
+       .val_bits = 32,
+       .lock = sta2x11_regmap_lock,
+       .unlock = sta2x11_regmap_unlock,
+       .max_register = APBREG_EMU_PCG_SARAC,
+       .readable_reg = sta2x11_apbreg_readable_reg,
+       .writeable_reg = sta2x11_apbreg_writeable_reg,
+};
+
+static bool sta2x11_apb_soc_regs_readable_reg(struct device *dev,
+                                             unsigned int reg)
+{
+       return reg <= PCIE_SoC_INT_ROUTER_STATUS3_REG ||
+               __reg_within_range(reg, DMA_IP_CTRL_REG, SPARE3_RESERVED) ||
+               __reg_within_range(reg, MASTER_LOCK_REG,
+                                  SYSTEM_CONFIG_STATUS_REG) ||
+               reg == MSP_CLK_CTRL_REG ||
+               __reg_within_range(reg, COMPENSATION_REG1, TEST_CTL_REG);
+}
+
+static bool sta2x11_apb_soc_regs_writeable_reg(struct device *dev,
+                                              unsigned int reg)
+{
+       if (!sta2x11_apb_soc_regs_readable_reg(dev, reg))
+               return false;
+       switch (reg) {
+       case PCIE_COMMON_CLOCK_CONFIG_0_4_0:
+       case SYSTEM_CONFIG_STATUS_REG:
+       case COMPENSATION_REG1:
+       case PCIE_SoC_INT_ROUTER_STATUS0_REG...PCIE_SoC_INT_ROUTER_STATUS3_REG:
+       case PCIE_PM_STATUS_0_PORT_0_4...PCIE_PM_STATUS_7_0_EP4:
+               return false;
+       default:
+               return true;
+       }
+}
+
+static struct regmap_config sta2x11_apb_soc_regs_regmap_config = {
+       .reg_bits = 32,
+       .reg_stride = 4,
+       .val_bits = 32,
+       .lock = sta2x11_regmap_lock,
+       .unlock = sta2x11_regmap_unlock,
+       .max_register = TEST_CTL_REG,
+       .readable_reg = sta2x11_apb_soc_regs_readable_reg,
+       .writeable_reg = sta2x11_apb_soc_regs_writeable_reg,
+};
+
+static struct regmap_config *
+sta2x11_mfd_regmap_configs[sta2x11_n_mfd_plat_devs] = {
+       [sta2x11_sctl] = &sta2x11_sctl_regmap_config,
+       [sta2x11_apbreg] = &sta2x11_apbreg_regmap_config,
+       [sta2x11_apb_soc_regs] = &sta2x11_apb_soc_regs_regmap_config,
+       [sta2x11_scr] = &sta2x11_scr_regmap_config,
+};
+
+/* Probe for the four platform devices */
+
+static int sta2x11_mfd_platform_probe(struct platform_device *dev,
+                                     enum sta2x11_mfd_plat_dev index)
+{
+       struct pci_dev **pdev;
+       struct sta2x11_mfd *mfd;
+       struct resource *res;
+       const char *name = sta2x11_mfd_names[index];
+       struct regmap_config *regmap_config = sta2x11_mfd_regmap_configs[index];
+
+       pdev = dev_get_platdata(&dev->dev);
+       mfd = sta2x11_mfd_find(*pdev);
+       if (!mfd)
+               return -ENODEV;
+       if (!regmap_config)
+               return -ENODEV;
+
+       res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+       if (!res)
+               return -ENOMEM;
+
+       if (!request_mem_region(res->start, resource_size(res), name))
+               return -EBUSY;
+
+       mfd->regs[index] = ioremap(res->start, resource_size(res));
+       if (!mfd->regs[index]) {
+               release_mem_region(res->start, resource_size(res));
+               return -ENOMEM;
+       }
+       regmap_config->lock_arg = &mfd->lock;
+       /*
+          No caching, registers could be reached both via regmap and via
+          void __iomem *
+       */
+       regmap_config->cache_type = REGCACHE_NONE;
+       mfd->regmap[index] = devm_regmap_init_mmio(&dev->dev, mfd->regs[index],
+                                                  regmap_config);
+       WARN_ON(IS_ERR(mfd->regmap[index]));
+
+       return 0;
+}
+
+static int sta2x11_sctl_probe(struct platform_device *dev)
+{
+       return sta2x11_mfd_platform_probe(dev, sta2x11_sctl);
+}
+
+static int sta2x11_apbreg_probe(struct platform_device *dev)
+{
+       return sta2x11_mfd_platform_probe(dev, sta2x11_apbreg);
+}
+
+static int sta2x11_apb_soc_regs_probe(struct platform_device *dev)
+{
+       return sta2x11_mfd_platform_probe(dev, sta2x11_apb_soc_regs);
+}
+
+static int sta2x11_scr_probe(struct platform_device *dev)
+{
+       return sta2x11_mfd_platform_probe(dev, sta2x11_scr);
+}
+
+/* The three platform drivers */
+static struct platform_driver sta2x11_sctl_platform_driver = {
+       .driver = {
+               .name   = STA2X11_MFD_SCTL_NAME,
+       },
+       .probe          = sta2x11_sctl_probe,
+};
+
+static int __init sta2x11_sctl_init(void)
+{
+       pr_info("%s\n", __func__);
+       return platform_driver_register(&sta2x11_sctl_platform_driver);
+}
+
+static struct platform_driver sta2x11_platform_driver = {
+       .driver = {
+               .name   = STA2X11_MFD_APBREG_NAME,
+       },
+       .probe          = sta2x11_apbreg_probe,
+};
+
+static int __init sta2x11_apbreg_init(void)
+{
+       pr_info("%s\n", __func__);
+       return platform_driver_register(&sta2x11_platform_driver);
+}
+
+static struct platform_driver sta2x11_apb_soc_regs_platform_driver = {
+       .driver = {
+               .name   = STA2X11_MFD_APB_SOC_REGS_NAME,
+       },
+       .probe          = sta2x11_apb_soc_regs_probe,
+};
+
+static int __init sta2x11_apb_soc_regs_init(void)
+{
+       pr_info("%s\n", __func__);
+       return platform_driver_register(&sta2x11_apb_soc_regs_platform_driver);
+}
+
+static struct platform_driver sta2x11_scr_platform_driver = {
+       .driver = {
+               .name = STA2X11_MFD_SCR_NAME,
+       },
+       .probe = sta2x11_scr_probe,
+};
+
+static int __init sta2x11_scr_init(void)
+{
+       pr_info("%s\n", __func__);
+       return platform_driver_register(&sta2x11_scr_platform_driver);
+}
+
+
+/*
+ * What follows are the PCI devices that host the above pdevs.
+ * Each logic block is 4kB and they are all consecutive: we use this info.
+ */
+
+/* Mfd 0 device */
+
+/* Mfd 0, Bar 0 */
+enum mfd0_bar0_cells {
+       STA2X11_GPIO_0 = 0,
+       STA2X11_GPIO_1,
+       STA2X11_GPIO_2,
+       STA2X11_GPIO_3,
+       STA2X11_SCTL,
+       STA2X11_SCR,
+       STA2X11_TIME,
+};
+/* Mfd 0 , Bar 1 */
+enum mfd0_bar1_cells {
+       STA2X11_APBREG = 0,
+};
+#define CELL_4K(_name, _cell) { \
+               .name = _name, \
+               .start = _cell * 4096, .end = _cell * 4096 + 4095, \
+               .flags = IORESOURCE_MEM, \
+               }
+
+static const struct resource gpio_resources[] = {
+       {
+               /* 4 consecutive cells, 1 driver */
+               .name = STA2X11_MFD_GPIO_NAME,
+               .start = 0,
+               .end = (4 * 4096) - 1,
+               .flags = IORESOURCE_MEM,
+       }
+};
+static const struct resource sctl_resources[] = {
+       CELL_4K(STA2X11_MFD_SCTL_NAME, STA2X11_SCTL),
+};
+static const struct resource scr_resources[] = {
+       CELL_4K(STA2X11_MFD_SCR_NAME, STA2X11_SCR),
+};
+static const struct resource time_resources[] = {
+       CELL_4K(STA2X11_MFD_TIME_NAME, STA2X11_TIME),
+};
+
+static const struct resource apbreg_resources[] = {
+       CELL_4K(STA2X11_MFD_APBREG_NAME, STA2X11_APBREG),
+};
+
+#define DEV(_name, _r) \
+       { .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, }
+
+static struct mfd_cell sta2x11_mfd0_bar0[] = {
+       /* offset 0: we add pdata later */
+       DEV(STA2X11_MFD_GPIO_NAME, gpio_resources),
+       DEV(STA2X11_MFD_SCTL_NAME, sctl_resources),
+       DEV(STA2X11_MFD_SCR_NAME,  scr_resources),
+       DEV(STA2X11_MFD_TIME_NAME, time_resources),
+};
+
+static struct mfd_cell sta2x11_mfd0_bar1[] = {
+       DEV(STA2X11_MFD_APBREG_NAME, apbreg_resources),
+};
+
+/* Mfd 1 devices */
+
+/* Mfd 1, Bar 0 */
+enum mfd1_bar0_cells {
+       STA2X11_VIC = 0,
+};
+
+/* Mfd 1, Bar 1 */
+enum mfd1_bar1_cells {
+       STA2X11_APB_SOC_REGS = 0,
+};
+
+static const struct resource vic_resources[] = {
+       CELL_4K(STA2X11_MFD_VIC_NAME, STA2X11_VIC),
+};
+
+static const struct resource apb_soc_regs_resources[] = {
+       CELL_4K(STA2X11_MFD_APB_SOC_REGS_NAME, STA2X11_APB_SOC_REGS),
+};
+
+static struct mfd_cell sta2x11_mfd1_bar0[] = {
+       DEV(STA2X11_MFD_VIC_NAME, vic_resources),
+};
+
+static struct mfd_cell sta2x11_mfd1_bar1[] = {
+       DEV(STA2X11_MFD_APB_SOC_REGS_NAME, apb_soc_regs_resources),
+};
+
+
+static int sta2x11_mfd_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+       pci_save_state(pdev);
+       pci_disable_device(pdev);
+       pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+       return 0;
+}
+
+static int sta2x11_mfd_resume(struct pci_dev *pdev)
+{
+       int err;
+
+       pci_set_power_state(pdev, PCI_D0);
+       err = pci_enable_device(pdev);
+       if (err)
+               return err;
+       pci_restore_state(pdev);
+
+       return 0;
+}
+
+struct sta2x11_mfd_bar_setup_data {
+       struct mfd_cell *cells;
+       int ncells;
+};
+
+struct sta2x11_mfd_setup_data {
+       struct sta2x11_mfd_bar_setup_data bars[2];
+};
+
+#define STA2X11_MFD0 0
+#define STA2X11_MFD1 1
+
+static struct sta2x11_mfd_setup_data mfd_setup_data[] = {
+       /* Mfd 0: gpio, sctl, scr, timers / apbregs */
+       [STA2X11_MFD0] = {
+               .bars = {
+                       [0] = {
+                               .cells = sta2x11_mfd0_bar0,
+                               .ncells = ARRAY_SIZE(sta2x11_mfd0_bar0),
+                       },
+                       [1] = {
+                               .cells = sta2x11_mfd0_bar1,
+                               .ncells = ARRAY_SIZE(sta2x11_mfd0_bar1),
+                       },
+               },
+       },
+       /* Mfd 1: vic / apb-soc-regs */
+       [STA2X11_MFD1] = {
+               .bars = {
+                       [0] = {
+                               .cells = sta2x11_mfd1_bar0,
+                               .ncells = ARRAY_SIZE(sta2x11_mfd1_bar0),
+                       },
+                       [1] = {
+                               .cells = sta2x11_mfd1_bar1,
+                               .ncells = ARRAY_SIZE(sta2x11_mfd1_bar1),
+                       },
+               },
+       },
+};
+
+static void sta2x11_mfd_setup(struct pci_dev *pdev,
+                             struct sta2x11_mfd_setup_data *sd)
+{
+       int i, j;
+       for (i = 0; i < ARRAY_SIZE(sd->bars); i++)
+               for (j = 0; j < sd->bars[i].ncells; j++) {
+                       sd->bars[i].cells[j].pdata_size = sizeof(pdev);
+                       sd->bars[i].cells[j].platform_data = &pdev;
+               }
+}
+
+static int sta2x11_mfd_probe(struct pci_dev *pdev,
+                            const struct pci_device_id *pci_id)
+{
+       int err, i;
+       struct sta2x11_mfd_setup_data *setup_data;
+
+       dev_info(&pdev->dev, "%s\n", __func__);
+
+       err = pci_enable_device(pdev);
+       if (err) {
+               dev_err(&pdev->dev, "Can't enable device.\n");
+               return err;
+       }
+
+       err = pci_enable_msi(pdev);
+       if (err)
+               dev_info(&pdev->dev, "Enable msi failed\n");
+
+       setup_data = pci_id->device == PCI_DEVICE_ID_STMICRO_GPIO ?
+               &mfd_setup_data[STA2X11_MFD0] :
+               &mfd_setup_data[STA2X11_MFD1];
+
+       /* platform data is the pci device for all of them */
+       sta2x11_mfd_setup(pdev, setup_data);
+
+       /* Record this pdev before mfd_add_devices: their probe looks for it */
+       if (!sta2x11_mfd_find(pdev))
+               sta2x11_mfd_add(pdev, GFP_ATOMIC);
+
+       /* Just 2 bars for all mfd's at present */
+       for (i = 0; i < 2; i++) {
+               err = mfd_add_devices(&pdev->dev, -1,
+                                     setup_data->bars[i].cells,
+                                     setup_data->bars[i].ncells,
+                                     &pdev->resource[i],
+                                     0, NULL);
+               if (err) {
+                       dev_err(&pdev->dev,
+                               "mfd_add_devices[%d] failed: %d\n", i, err);
+                       goto err_disable;
+               }
+       }
+
+       return 0;
+
+err_disable:
+       mfd_remove_devices(&pdev->dev);
+       pci_disable_device(pdev);
+       pci_disable_msi(pdev);
+       return err;
+}
+
+static const struct pci_device_id sta2x11_mfd_tbl[] = {
+       {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)},
+       {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIC)},
+       {0,},
+};
+
+static struct pci_driver sta2x11_mfd_driver = {
+       .name =         "sta2x11-mfd",
+       .id_table =     sta2x11_mfd_tbl,
+       .probe =        sta2x11_mfd_probe,
+       .suspend =      sta2x11_mfd_suspend,
+       .resume =       sta2x11_mfd_resume,
+};
+
+static int __init sta2x11_mfd_init(void)
+{
+       pr_info("%s\n", __func__);
+       return pci_register_driver(&sta2x11_mfd_driver);
+}
+
+/*
+ * All of this must be ready before "normal" devices like MMCI appear.
+ * But MFD (the pci device) can't be too early. The following choice
+ * prepares platform drivers very early and probe the PCI device later,
+ * but before other PCI devices.
+ */
+subsys_initcall(sta2x11_apbreg_init);
+subsys_initcall(sta2x11_sctl_init);
+subsys_initcall(sta2x11_apb_soc_regs_init);
+subsys_initcall(sta2x11_scr_init);
+rootfs_initcall(sta2x11_mfd_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wind River");
+MODULE_DESCRIPTION("STA2x11 mfd for GPIO, SCTL and APBREG");
+MODULE_DEVICE_TABLE(pci, sta2x11_mfd_tbl);