diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd-pci.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd-pci.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c deleted file mode 100644 index 3b19de3ae9a3..000000000000 --- a/drivers/scsi/ufs/ufshcd-pci.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Universal Flash Storage Host controller PCI glue driver - * - * This code is based on drivers/scsi/ufs/ufshcd-pci.c - * Copyright (C) 2011-2013 Samsung India Software Operations - * - * Authors: - * Santosh Yaraganavi <santosh.sy@samsung.com> - * Vinayak Holikatti <h.vinayak@samsung.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * See the COPYING file in the top-level directory or visit - * <http://www.gnu.org/licenses/gpl-2.0.html> - * - * 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. - * - * This program is provided "AS IS" and "WITH ALL FAULTS" and - * without warranty of any kind. You are solely responsible for - * determining the appropriateness of using and distributing - * the program and assume all risks associated with your exercise - * of rights with respect to the program, including but not limited - * to infringement of third party rights, the risks and costs of - * program errors, damage to or loss of data, programs or equipment, - * and unavailability or interruption of operations. Under no - * circumstances will the contributor of this Program be liable for - * any damages of any kind arising from your use or distribution of - * this program. - */ - -#include "ufshcd.h" -#include <linux/pci.h> -#include <linux/pm_runtime.h> - -static int ufs_intel_disable_lcc(struct ufs_hba *hba) -{ - u32 attr = UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE); - u32 lcc_enable = 0; - - ufshcd_dme_get(hba, attr, &lcc_enable); - if (lcc_enable) - ufshcd_dme_set(hba, attr, 0); - - return 0; -} - -static int ufs_intel_link_startup_notify(struct ufs_hba *hba, - enum ufs_notify_change_status status) -{ - int err = 0; - - switch (status) { - case PRE_CHANGE: - err = ufs_intel_disable_lcc(hba); - break; - case POST_CHANGE: - break; - default: - break; - } - - return err; -} - -static struct ufs_hba_variant_ops ufs_intel_cnl_hba_vops = { - .name = "intel-pci", - .link_startup_notify = ufs_intel_link_startup_notify, -}; - -#ifdef CONFIG_PM_SLEEP -/** - * ufshcd_pci_suspend - suspend power management function - * @dev: pointer to PCI device handle - * - * Returns 0 if successful - * Returns non-zero otherwise - */ -static int ufshcd_pci_suspend(struct device *dev) -{ - return ufshcd_system_suspend(dev_get_drvdata(dev)); -} - -/** - * ufshcd_pci_resume - resume power management function - * @dev: pointer to PCI device handle - * - * Returns 0 if successful - * Returns non-zero otherwise - */ -static int ufshcd_pci_resume(struct device *dev) -{ - return ufshcd_system_resume(dev_get_drvdata(dev)); -} -#endif /* !CONFIG_PM_SLEEP */ - -#ifdef CONFIG_PM -static int ufshcd_pci_runtime_suspend(struct device *dev) -{ - return ufshcd_runtime_suspend(dev_get_drvdata(dev)); -} -static int ufshcd_pci_runtime_resume(struct device *dev) -{ - return ufshcd_runtime_resume(dev_get_drvdata(dev)); -} -static int ufshcd_pci_runtime_idle(struct device *dev) -{ - return ufshcd_runtime_idle(dev_get_drvdata(dev)); -} -#endif /* !CONFIG_PM */ - -/** - * ufshcd_pci_shutdown - main function to put the controller in reset state - * @pdev: pointer to PCI device handle - */ -static void ufshcd_pci_shutdown(struct pci_dev *pdev) -{ - ufshcd_shutdown((struct ufs_hba *)pci_get_drvdata(pdev)); -} - -/** - * ufshcd_pci_remove - de-allocate PCI/SCSI host and host memory space - * data structure memory - * @pdev: pointer to PCI handle - */ -static void ufshcd_pci_remove(struct pci_dev *pdev) -{ - struct ufs_hba *hba = pci_get_drvdata(pdev); - - pm_runtime_forbid(&pdev->dev); - pm_runtime_get_noresume(&pdev->dev); - ufshcd_remove(hba); - ufshcd_dealloc_host(hba); -} - -/** - * ufshcd_pci_probe - probe routine of the driver - * @pdev: pointer to PCI device handle - * @id: PCI device id - * - * Returns 0 on success, non-zero value on failure - */ -static int -ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct ufs_hba *hba; - void __iomem *mmio_base; - int err; - - err = pcim_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "pcim_enable_device failed\n"); - return err; - } - - pci_set_master(pdev); - - err = pcim_iomap_regions(pdev, 1 << 0, UFSHCD); - if (err < 0) { - dev_err(&pdev->dev, "request and iomap failed\n"); - return err; - } - - mmio_base = pcim_iomap_table(pdev)[0]; - - err = ufshcd_alloc_host(&pdev->dev, &hba); - if (err) { - dev_err(&pdev->dev, "Allocation failed\n"); - return err; - } - - hba->vops = (struct ufs_hba_variant_ops *)id->driver_data; - - err = ufshcd_init(hba, mmio_base, pdev->irq); - if (err) { - dev_err(&pdev->dev, "Initialization failed\n"); - ufshcd_dealloc_host(hba); - return err; - } - - pci_set_drvdata(pdev, hba); - pm_runtime_put_noidle(&pdev->dev); - pm_runtime_allow(&pdev->dev); - - return 0; -} - -static const struct dev_pm_ops ufshcd_pci_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(ufshcd_pci_suspend, - ufshcd_pci_resume) - SET_RUNTIME_PM_OPS(ufshcd_pci_runtime_suspend, - ufshcd_pci_runtime_resume, - ufshcd_pci_runtime_idle) -}; - -static const struct pci_device_id ufshcd_pci_tbl[] = { - { PCI_VENDOR_ID_SAMSUNG, 0xC00C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { PCI_VDEVICE(INTEL, 0x9DFA), (kernel_ulong_t)&ufs_intel_cnl_hba_vops }, - { PCI_VDEVICE(INTEL, 0x4B41), (kernel_ulong_t)&ufs_intel_cnl_hba_vops }, - { PCI_VDEVICE(INTEL, 0x4B43), (kernel_ulong_t)&ufs_intel_cnl_hba_vops }, - { } /* terminate list */ -}; - -MODULE_DEVICE_TABLE(pci, ufshcd_pci_tbl); - -static struct pci_driver ufshcd_pci_driver = { - .name = UFSHCD, - .id_table = ufshcd_pci_tbl, - .probe = ufshcd_pci_probe, - .remove = ufshcd_pci_remove, - .shutdown = ufshcd_pci_shutdown, - .driver = { - .pm = &ufshcd_pci_pm_ops - }, -}; - -module_pci_driver(ufshcd_pci_driver); - -MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>"); -MODULE_AUTHOR("Vinayak Holikatti <h.vinayak@samsung.com>"); -MODULE_DESCRIPTION("UFS host controller PCI glue driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(UFSHCD_DRIVER_VERSION); |