diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/lpc_sch.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/mfd/lpc_sch.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/lpc_sch.c b/ANDROID_3.4.5/drivers/mfd/lpc_sch.c deleted file mode 100644 index abc42136..00000000 --- a/ANDROID_3.4.5/drivers/mfd/lpc_sch.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * lpc_sch.c - LPC interface for Intel Poulsbo SCH - * - * LPC bridge function of the Intel SCH contains many other - * functional units, such as Interrupt controllers, Timers, - * Power Management, System Management, GPIO, RTC, and LPC - * Configuration Registers. - * - * Copyright (c) 2010 CompuLab Ltd - * Author: Denis Turischev <denis@compulab.co.il> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License 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; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/acpi.h> -#include <linux/pci.h> -#include <linux/mfd/core.h> - -#define SMBASE 0x40 -#define SMBUS_IO_SIZE 64 - -#define GPIOBASE 0x44 -#define GPIO_IO_SIZE 64 - -#define WDTBASE 0x84 -#define WDT_IO_SIZE 64 - -static struct resource smbus_sch_resource = { - .flags = IORESOURCE_IO, -}; - - -static struct resource gpio_sch_resource = { - .flags = IORESOURCE_IO, -}; - -static struct mfd_cell lpc_sch_cells[] = { - { - .name = "isch_smbus", - .num_resources = 1, - .resources = &smbus_sch_resource, - }, - { - .name = "sch_gpio", - .num_resources = 1, - .resources = &gpio_sch_resource, - }, -}; - -static struct resource wdt_sch_resource = { - .flags = IORESOURCE_IO, -}; - -static struct mfd_cell tunnelcreek_cells[] = { - { - .name = "tunnelcreek_wdt", - .num_resources = 1, - .resources = &wdt_sch_resource, - }, -}; - -static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) }, - { 0, } -}; -MODULE_DEVICE_TABLE(pci, lpc_sch_ids); - -static int __devinit lpc_sch_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - unsigned int base_addr_cfg; - unsigned short base_addr; - int i; - int ret; - - pci_read_config_dword(dev, SMBASE, &base_addr_cfg); - if (!(base_addr_cfg & (1 << 31))) { - dev_err(&dev->dev, "Decode of the SMBus I/O range disabled\n"); - return -ENODEV; - } - base_addr = (unsigned short)base_addr_cfg; - if (base_addr == 0) { - dev_err(&dev->dev, "I/O space for SMBus uninitialized\n"); - return -ENODEV; - } - - smbus_sch_resource.start = base_addr; - smbus_sch_resource.end = base_addr + SMBUS_IO_SIZE - 1; - - pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg); - if (!(base_addr_cfg & (1 << 31))) { - dev_err(&dev->dev, "Decode of the GPIO I/O range disabled\n"); - return -ENODEV; - } - base_addr = (unsigned short)base_addr_cfg; - if (base_addr == 0) { - dev_err(&dev->dev, "I/O space for GPIO uninitialized\n"); - return -ENODEV; - } - - gpio_sch_resource.start = base_addr; - gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1; - - for (i=0; i < ARRAY_SIZE(lpc_sch_cells); i++) - lpc_sch_cells[i].id = id->device; - - ret = mfd_add_devices(&dev->dev, 0, - lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL, 0); - if (ret) - goto out_dev; - - if (id->device == PCI_DEVICE_ID_INTEL_ITC_LPC) { - pci_read_config_dword(dev, WDTBASE, &base_addr_cfg); - if (!(base_addr_cfg & (1 << 31))) { - dev_err(&dev->dev, "Decode of the WDT I/O range disabled\n"); - ret = -ENODEV; - goto out_dev; - } - base_addr = (unsigned short)base_addr_cfg; - if (base_addr == 0) { - dev_err(&dev->dev, "I/O space for WDT uninitialized\n"); - ret = -ENODEV; - goto out_dev; - } - - wdt_sch_resource.start = base_addr; - wdt_sch_resource.end = base_addr + WDT_IO_SIZE - 1; - - for (i = 0; i < ARRAY_SIZE(tunnelcreek_cells); i++) - tunnelcreek_cells[i].id = id->device; - - ret = mfd_add_devices(&dev->dev, 0, tunnelcreek_cells, - ARRAY_SIZE(tunnelcreek_cells), NULL, 0); - } - - return ret; -out_dev: - mfd_remove_devices(&dev->dev); - return ret; -} - -static void __devexit lpc_sch_remove(struct pci_dev *dev) -{ - mfd_remove_devices(&dev->dev); -} - -static struct pci_driver lpc_sch_driver = { - .name = "lpc_sch", - .id_table = lpc_sch_ids, - .probe = lpc_sch_probe, - .remove = __devexit_p(lpc_sch_remove), -}; - -static int __init lpc_sch_init(void) -{ - return pci_register_driver(&lpc_sch_driver); -} - -static void __exit lpc_sch_exit(void) -{ - pci_unregister_driver(&lpc_sch_driver); -} - -module_init(lpc_sch_init); -module_exit(lpc_sch_exit); - -MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>"); -MODULE_DESCRIPTION("LPC interface for Intel Poulsbo SCH"); -MODULE_LICENSE("GPL"); |