diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd-pci.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd-pci.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c deleted file mode 100644 index 48be39a6f6d7..000000000000 --- a/drivers/scsi/ufs/ufshcd-pci.c +++ /dev/null @@ -1,210 +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> - -#ifdef CONFIG_PM -/** - * ufshcd_pci_suspend - suspend power management function - * @pdev: pointer to PCI device handle - * @state: power state - * - * Returns -ENOSYS - */ -static int ufshcd_pci_suspend(struct pci_dev *pdev, pm_message_t state) -{ - /* - * TODO: - * 1. Call ufshcd_suspend - * 2. Do bus specific power management - */ - - return -ENOSYS; -} - -/** - * ufshcd_pci_resume - resume power management function - * @pdev: pointer to PCI device handle - * - * Returns -ENOSYS - */ -static int ufshcd_pci_resume(struct pci_dev *pdev) -{ - /* - * TODO: - * 1. Call ufshcd_resume. - * 2. Do bus specific wake up - */ - - return -ENOSYS; -} -#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_hba_stop((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); - - disable_irq(pdev->irq); - ufshcd_remove(hba); - pci_release_regions(pdev); - pci_set_drvdata(pdev, NULL); - pci_clear_master(pdev); - pci_disable_device(pdev); -} - -/** - * ufshcd_set_dma_mask - Set dma mask based on the controller - * addressing capability - * @pdev: PCI device structure - * - * Returns 0 for success, non-zero for failure - */ -static int ufshcd_set_dma_mask(struct pci_dev *pdev) -{ - int err; - - if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) - && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) - return 0; - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (!err) - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); - return err; -} - -/** - * 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 = pci_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "pci_enable_device failed\n"); - goto out_error; - } - - pci_set_master(pdev); - - - err = pci_request_regions(pdev, UFSHCD); - if (err < 0) { - dev_err(&pdev->dev, "request regions failed\n"); - goto out_disable; - } - - mmio_base = pci_ioremap_bar(pdev, 0); - if (!mmio_base) { - dev_err(&pdev->dev, "memory map failed\n"); - err = -ENOMEM; - goto out_release_regions; - } - - err = ufshcd_set_dma_mask(pdev); - if (err) { - dev_err(&pdev->dev, "set dma mask failed\n"); - goto out_iounmap; - } - - err = ufshcd_init(&pdev->dev, &hba, mmio_base, pdev->irq); - if (err) { - dev_err(&pdev->dev, "Initialization failed\n"); - goto out_iounmap; - } - - pci_set_drvdata(pdev, hba); - - return 0; - -out_iounmap: - iounmap(mmio_base); -out_release_regions: - pci_release_regions(pdev); -out_disable: - pci_clear_master(pdev); - pci_disable_device(pdev); -out_error: - return err; -} - -static DEFINE_PCI_DEVICE_TABLE(ufshcd_pci_tbl) = { - { PCI_VENDOR_ID_SAMSUNG, 0xC00C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { } /* 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, -#ifdef CONFIG_PM - .suspend = ufshcd_pci_suspend, - .resume = ufshcd_pci_resume, -#endif -}; - -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); |