diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/cs5535-mfd.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/mfd/cs5535-mfd.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/cs5535-mfd.c b/ANDROID_3.4.5/drivers/mfd/cs5535-mfd.c deleted file mode 100644 index 315fef5d..00000000 --- a/ANDROID_3.4.5/drivers/mfd/cs5535-mfd.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * cs5535-mfd.c - core MFD driver for CS5535/CS5536 southbridges - * - * The CS5535 and CS5536 has an ISA bridge on the PCI bus that is - * used for accessing GPIOs, MFGPTs, ACPI, etc. Each subdevice has - * an IO range that's specified in a single BAR. The BAR order is - * hardcoded in the CS553x specifications. - * - * Copyright (c) 2010 Andres Salomon <dilinger@queued.net> - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mfd/core.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <asm/olpc.h> - -#define DRV_NAME "cs5535-mfd" - -enum cs5535_mfd_bars { - SMB_BAR = 0, - GPIO_BAR = 1, - MFGPT_BAR = 2, - PMS_BAR = 4, - ACPI_BAR = 5, - NR_BARS, -}; - -static int cs5535_mfd_res_enable(struct platform_device *pdev) -{ - struct resource *res; - - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!res) { - dev_err(&pdev->dev, "can't fetch device resource info\n"); - return -EIO; - } - - if (!request_region(res->start, resource_size(res), DRV_NAME)) { - dev_err(&pdev->dev, "can't request region\n"); - return -EIO; - } - - return 0; -} - -static int cs5535_mfd_res_disable(struct platform_device *pdev) -{ - struct resource *res; - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!res) { - dev_err(&pdev->dev, "can't fetch device resource info\n"); - return -EIO; - } - - release_region(res->start, resource_size(res)); - return 0; -} - -static __devinitdata struct resource cs5535_mfd_resources[NR_BARS]; - -static __devinitdata struct mfd_cell cs5535_mfd_cells[] = { - { - .id = SMB_BAR, - .name = "cs5535-smb", - .num_resources = 1, - .resources = &cs5535_mfd_resources[SMB_BAR], - }, - { - .id = GPIO_BAR, - .name = "cs5535-gpio", - .num_resources = 1, - .resources = &cs5535_mfd_resources[GPIO_BAR], - }, - { - .id = MFGPT_BAR, - .name = "cs5535-mfgpt", - .num_resources = 1, - .resources = &cs5535_mfd_resources[MFGPT_BAR], - }, - { - .id = PMS_BAR, - .name = "cs5535-pms", - .num_resources = 1, - .resources = &cs5535_mfd_resources[PMS_BAR], - - .enable = cs5535_mfd_res_enable, - .disable = cs5535_mfd_res_disable, - }, - { - .id = ACPI_BAR, - .name = "cs5535-acpi", - .num_resources = 1, - .resources = &cs5535_mfd_resources[ACPI_BAR], - - .enable = cs5535_mfd_res_enable, - .disable = cs5535_mfd_res_disable, - }, -}; - -#ifdef CONFIG_OLPC -static void __devinit cs5535_clone_olpc_cells(void) -{ - const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" }; - - if (!machine_is_olpc()) - return; - - mfd_clone_cell("cs5535-acpi", acpi_clones, ARRAY_SIZE(acpi_clones)); -} -#else -static void cs5535_clone_olpc_cells(void) { } -#endif - -static int __devinit cs5535_mfd_probe(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - int err, i; - - err = pci_enable_device(pdev); - if (err) - return err; - - /* fill in IO range for each cell; subdrivers handle the region */ - for (i = 0; i < ARRAY_SIZE(cs5535_mfd_cells); i++) { - int bar = cs5535_mfd_cells[i].id; - struct resource *r = &cs5535_mfd_resources[bar]; - - r->flags = IORESOURCE_IO; - r->start = pci_resource_start(pdev, bar); - r->end = pci_resource_end(pdev, bar); - - /* id is used for temporarily storing BAR; unset it now */ - cs5535_mfd_cells[i].id = 0; - } - - err = mfd_add_devices(&pdev->dev, -1, cs5535_mfd_cells, - ARRAY_SIZE(cs5535_mfd_cells), NULL, 0); - if (err) { - dev_err(&pdev->dev, "MFD add devices failed: %d\n", err); - goto err_disable; - } - cs5535_clone_olpc_cells(); - - dev_info(&pdev->dev, "%zu devices registered.\n", - ARRAY_SIZE(cs5535_mfd_cells)); - - return 0; - -err_disable: - pci_disable_device(pdev); - return err; -} - -static void __devexit cs5535_mfd_remove(struct pci_dev *pdev) -{ - mfd_remove_devices(&pdev->dev); - pci_disable_device(pdev); -} - -static DEFINE_PCI_DEVICE_TABLE(cs5535_mfd_pci_tbl) = { - { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_ISA) }, - { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA) }, - { 0, } -}; -MODULE_DEVICE_TABLE(pci, cs5535_mfd_pci_tbl); - -static struct pci_driver cs5535_mfd_driver = { - .name = DRV_NAME, - .id_table = cs5535_mfd_pci_tbl, - .probe = cs5535_mfd_probe, - .remove = __devexit_p(cs5535_mfd_remove), -}; - -static int __init cs5535_mfd_init(void) -{ - return pci_register_driver(&cs5535_mfd_driver); -} - -static void __exit cs5535_mfd_exit(void) -{ - pci_unregister_driver(&cs5535_mfd_driver); -} - -module_init(cs5535_mfd_init); -module_exit(cs5535_mfd_exit); - -MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>"); -MODULE_DESCRIPTION("MFD driver for CS5535/CS5536 southbridge's ISA PCI device"); -MODULE_LICENSE("GPL"); |