diff options
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 423 |
1 files changed, 90 insertions, 333 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 91a4046ca9ba..60fd40c4e4c2 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1,77 +1,39 @@ /* - * Universal Flash Storage Host controller driver + * Universal Flash Storage Host controller driver Core * * This code is based on drivers/scsi/ufs/ufshcd.c - * Copyright (C) 2011-2012 Samsung India Software Operations + * Copyright (C) 2011-2013 Samsung India Software Operations * - * Santosh Yaraganavi <santosh.sy@samsung.com> - * Vinayak Holikatti <h.vinayak@samsung.com> + * 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. * - * NO WARRANTY - * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR - * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT - * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is - * solely responsible for determining the appropriateness of using and - * distributing the Program and assumes all risks associated with its - * exercise of rights under this Agreement, including but not limited to - * the risks and costs of program errors, damage to or loss of data, - * programs or equipment, and unavailability or interruption of operations. - - * DISCLAIMER OF LIABILITY - * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE - * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED - * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES - - * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - * USA. + * 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 <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/workqueue.h> -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/wait.h> -#include <linux/bitops.h> - -#include <asm/irq.h> -#include <asm/byteorder.h> -#include <scsi/scsi.h> -#include <scsi/scsi_cmnd.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_tcq.h> -#include <scsi/scsi_dbg.h> -#include <scsi/scsi_eh.h> - -#include "ufs.h" -#include "ufshci.h" - -#define UFSHCD "ufshcd" -#define UFSHCD_DRIVER_VERSION "0.1" +#include "ufshcd.h" enum { UFSHCD_MAX_CHANNEL = 0, @@ -102,121 +64,6 @@ enum { }; /** - * struct uic_command - UIC command structure - * @command: UIC command - * @argument1: UIC command argument 1 - * @argument2: UIC command argument 2 - * @argument3: UIC command argument 3 - * @cmd_active: Indicate if UIC command is outstanding - * @result: UIC command result - */ -struct uic_command { - u32 command; - u32 argument1; - u32 argument2; - u32 argument3; - int cmd_active; - int result; -}; - -/** - * struct ufs_hba - per adapter private structure - * @mmio_base: UFSHCI base register address - * @ucdl_base_addr: UFS Command Descriptor base address - * @utrdl_base_addr: UTP Transfer Request Descriptor base address - * @utmrdl_base_addr: UTP Task Management Descriptor base address - * @ucdl_dma_addr: UFS Command Descriptor DMA address - * @utrdl_dma_addr: UTRDL DMA address - * @utmrdl_dma_addr: UTMRDL DMA address - * @host: Scsi_Host instance of the driver - * @pdev: PCI device handle - * @lrb: local reference block - * @outstanding_tasks: Bits representing outstanding task requests - * @outstanding_reqs: Bits representing outstanding transfer requests - * @capabilities: UFS Controller Capabilities - * @nutrs: Transfer Request Queue depth supported by controller - * @nutmrs: Task Management Queue depth supported by controller - * @active_uic_cmd: handle of active UIC command - * @ufshcd_tm_wait_queue: wait queue for task management - * @tm_condition: condition variable for task management - * @ufshcd_state: UFSHCD states - * @int_enable_mask: Interrupt Mask Bits - * @uic_workq: Work queue for UIC completion handling - * @feh_workq: Work queue for fatal controller error handling - * @errors: HBA errors - */ -struct ufs_hba { - void __iomem *mmio_base; - - /* Virtual memory reference */ - struct utp_transfer_cmd_desc *ucdl_base_addr; - struct utp_transfer_req_desc *utrdl_base_addr; - struct utp_task_req_desc *utmrdl_base_addr; - - /* DMA memory reference */ - dma_addr_t ucdl_dma_addr; - dma_addr_t utrdl_dma_addr; - dma_addr_t utmrdl_dma_addr; - - struct Scsi_Host *host; - struct pci_dev *pdev; - - struct ufshcd_lrb *lrb; - - unsigned long outstanding_tasks; - unsigned long outstanding_reqs; - - u32 capabilities; - int nutrs; - int nutmrs; - u32 ufs_version; - - struct uic_command active_uic_cmd; - wait_queue_head_t ufshcd_tm_wait_queue; - unsigned long tm_condition; - - u32 ufshcd_state; - u32 int_enable_mask; - - /* Work Queues */ - struct work_struct uic_workq; - struct work_struct feh_workq; - - /* HBA Errors */ - u32 errors; -}; - -/** - * struct ufshcd_lrb - local reference block - * @utr_descriptor_ptr: UTRD address of the command - * @ucd_cmd_ptr: UCD address of the command - * @ucd_rsp_ptr: Response UPIU address for this command - * @ucd_prdt_ptr: PRDT address of the command - * @cmd: pointer to SCSI command - * @sense_buffer: pointer to sense buffer address of the SCSI command - * @sense_bufflen: Length of the sense buffer - * @scsi_status: SCSI status of the command - * @command_type: SCSI, UFS, Query. - * @task_tag: Task tag of the command - * @lun: LUN of the command - */ -struct ufshcd_lrb { - struct utp_transfer_req_desc *utr_descriptor_ptr; - struct utp_upiu_cmd *ucd_cmd_ptr; - struct utp_upiu_rsp *ucd_rsp_ptr; - struct ufshcd_sg_entry *ucd_prdt_ptr; - - struct scsi_cmnd *cmd; - u8 *sense_buffer; - unsigned int sense_bufflen; - int scsi_status; - - int command_type; - int task_tag; - unsigned int lun; -}; - -/** * ufshcd_get_ufs_version - Get the UFS version supported by the HBA * @hba - Pointer to adapter instance * @@ -335,21 +182,21 @@ static inline void ufshcd_free_hba_memory(struct ufs_hba *hba) if (hba->utmrdl_base_addr) { utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; - dma_free_coherent(&hba->pdev->dev, utmrdl_size, + dma_free_coherent(hba->dev, utmrdl_size, hba->utmrdl_base_addr, hba->utmrdl_dma_addr); } if (hba->utrdl_base_addr) { utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); - dma_free_coherent(&hba->pdev->dev, utrdl_size, + dma_free_coherent(hba->dev, utrdl_size, hba->utrdl_base_addr, hba->utrdl_dma_addr); } if (hba->ucdl_base_addr) { ucdl_size = (sizeof(struct utp_transfer_cmd_desc) * hba->nutrs); - dma_free_coherent(&hba->pdev->dev, ucdl_size, + dma_free_coherent(hba->dev, ucdl_size, hba->ucdl_base_addr, hba->ucdl_dma_addr); } } @@ -429,15 +276,6 @@ static void ufshcd_enable_run_stop_reg(struct ufs_hba *hba) } /** - * ufshcd_hba_stop - Send controller to reset state - * @hba: per adapter instance - */ -static inline void ufshcd_hba_stop(struct ufs_hba *hba) -{ - writel(CONTROLLER_DISABLE, (hba->mmio_base + REG_CONTROLLER_ENABLE)); -} - -/** * ufshcd_hba_start - Start controller initialization sequence * @hba: per adapter instance */ @@ -724,7 +562,7 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba) /* Allocate memory for UTP command descriptors */ ucdl_size = (sizeof(struct utp_transfer_cmd_desc) * hba->nutrs); - hba->ucdl_base_addr = dma_alloc_coherent(&hba->pdev->dev, + hba->ucdl_base_addr = dma_alloc_coherent(hba->dev, ucdl_size, &hba->ucdl_dma_addr, GFP_KERNEL); @@ -737,7 +575,7 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba) */ if (!hba->ucdl_base_addr || WARN_ON(hba->ucdl_dma_addr & (PAGE_SIZE - 1))) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Command Descriptor Memory allocation failed\n"); goto out; } @@ -747,13 +585,13 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba) * UFSHCI requires 1024 byte alignment of UTRD */ utrdl_size = (sizeof(struct utp_transfer_req_desc) * hba->nutrs); - hba->utrdl_base_addr = dma_alloc_coherent(&hba->pdev->dev, + hba->utrdl_base_addr = dma_alloc_coherent(hba->dev, utrdl_size, &hba->utrdl_dma_addr, GFP_KERNEL); if (!hba->utrdl_base_addr || WARN_ON(hba->utrdl_dma_addr & (PAGE_SIZE - 1))) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Transfer Descriptor Memory allocation failed\n"); goto out; } @@ -763,13 +601,13 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba) * UFSHCI requires 1024 byte alignment of UTMRD */ utmrdl_size = sizeof(struct utp_task_req_desc) * hba->nutmrs; - hba->utmrdl_base_addr = dma_alloc_coherent(&hba->pdev->dev, + hba->utmrdl_base_addr = dma_alloc_coherent(hba->dev, utmrdl_size, &hba->utmrdl_dma_addr, GFP_KERNEL); if (!hba->utmrdl_base_addr || WARN_ON(hba->utmrdl_dma_addr & (PAGE_SIZE - 1))) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Task Management Descriptor Memory allocation failed\n"); goto out; } @@ -777,7 +615,7 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba) /* Allocate memory for local reference block */ hba->lrb = kcalloc(hba->nutrs, sizeof(struct ufshcd_lrb), GFP_KERNEL); if (!hba->lrb) { - dev_err(&hba->pdev->dev, "LRB Memory allocation failed\n"); + dev_err(hba->dev, "LRB Memory allocation failed\n"); goto out; } return 0; @@ -867,7 +705,7 @@ static int ufshcd_dme_link_startup(struct ufs_hba *hba) /* check if controller is ready to accept UIC commands */ if (((readl(hba->mmio_base + REG_CONTROLLER_STATUS)) & UIC_COMMAND_READY) == 0x0) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Controller not ready" " to accept UIC commands\n"); return -EIO; @@ -912,7 +750,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba) /* check if device present */ reg = readl((hba->mmio_base + REG_CONTROLLER_STATUS)); if (!ufshcd_is_device_present(reg)) { - dev_err(&hba->pdev->dev, "cc: Device not present\n"); + dev_err(hba->dev, "cc: Device not present\n"); err = -ENXIO; goto out; } @@ -924,7 +762,7 @@ static int ufshcd_make_hba_operational(struct ufs_hba *hba) if (!(ufshcd_get_lists_status(reg))) { ufshcd_enable_run_stop_reg(hba); } else { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Host controller not ready to process requests"); err = -EIO; goto out; @@ -1005,7 +843,7 @@ static int ufshcd_hba_enable(struct ufs_hba *hba) if (retry) { retry--; } else { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Controller enable failed\n"); return -EIO; } @@ -1084,7 +922,7 @@ static int ufshcd_do_reset(struct ufs_hba *hba) /* start the initialization process */ if (ufshcd_initialize_hba(hba)) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Reset: Controller initialization failed\n"); return FAILED; } @@ -1167,7 +1005,7 @@ static int ufshcd_task_req_compl(struct ufs_hba *hba, u32 index) task_result = SUCCESS; } else { task_result = FAILED; - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "trc: Invalid ocs = %x\n", ocs_value); } spin_unlock_irqrestore(hba->host->host_lock, flags); @@ -1281,7 +1119,7 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) /* check if the returned transfer response is valid */ result = ufshcd_is_valid_req_rsp(lrbp->ucd_rsp_ptr); if (result) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Invalid response = %x\n", result); break; } @@ -1310,7 +1148,7 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) case OCS_FATAL_ERROR: default: result |= DID_ERROR << 16; - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "OCS error from controller = %x\n", ocs); break; } /* end of switch */ @@ -1374,7 +1212,7 @@ static void ufshcd_uic_cc_handler (struct work_struct *work) !(ufshcd_get_uic_cmd_result(hba))) { if (ufshcd_make_hba_operational(hba)) - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "cc: hba not operational state\n"); return; } @@ -1509,7 +1347,7 @@ ufshcd_issue_tm_cmd(struct ufs_hba *hba, free_slot = ufshcd_get_tm_free_slot(hba); if (free_slot >= hba->nutmrs) { spin_unlock_irqrestore(host->host_lock, flags); - dev_err(&hba->pdev->dev, "Task management queue full\n"); + dev_err(hba->dev, "Task management queue full\n"); err = FAILED; goto out; } @@ -1552,7 +1390,7 @@ ufshcd_issue_tm_cmd(struct ufs_hba *hba, &hba->tm_condition) != 0), 60 * HZ); if (!err) { - dev_err(&hba->pdev->dev, + dev_err(hba->dev, "Task management command timed-out\n"); err = FAILED; goto out; @@ -1688,23 +1526,13 @@ static struct scsi_host_template ufshcd_driver_template = { }; /** - * ufshcd_shutdown - main function to put the controller in reset state - * @pdev: pointer to PCI device handle - */ -static void ufshcd_shutdown(struct pci_dev *pdev) -{ - ufshcd_hba_stop((struct ufs_hba *)pci_get_drvdata(pdev)); -} - -#ifdef CONFIG_PM -/** * ufshcd_suspend - suspend power management function - * @pdev: pointer to PCI device handle + * @hba: per adapter instance * @state: power state * * Returns -ENOSYS */ -static int ufshcd_suspend(struct pci_dev *pdev, pm_message_t state) +int ufshcd_suspend(struct ufs_hba *hba, pm_message_t state) { /* * TODO: @@ -1717,14 +1545,15 @@ static int ufshcd_suspend(struct pci_dev *pdev, pm_message_t state) return -ENOSYS; } +EXPORT_SYMBOL_GPL(ufshcd_suspend); /** * ufshcd_resume - resume power management function - * @pdev: pointer to PCI device handle + * @hba: per adapter instance * * Returns -ENOSYS */ -static int ufshcd_resume(struct pci_dev *pdev) +int ufshcd_resume(struct ufs_hba *hba) { /* * TODO: @@ -1737,7 +1566,7 @@ static int ufshcd_resume(struct pci_dev *pdev) return -ENOSYS; } -#endif /* CONFIG_PM */ +EXPORT_SYMBOL_GPL(ufshcd_resume); /** * ufshcd_hba_free - free allocated memory for @@ -1748,107 +1577,67 @@ static void ufshcd_hba_free(struct ufs_hba *hba) { iounmap(hba->mmio_base); ufshcd_free_hba_memory(hba); - pci_release_regions(hba->pdev); } /** - * ufshcd_remove - de-allocate PCI/SCSI host and host memory space + * ufshcd_remove - de-allocate SCSI host and host memory space * data structure memory - * @pdev - pointer to PCI handle + * @hba - per adapter instance */ -static void ufshcd_remove(struct pci_dev *pdev) +void ufshcd_remove(struct ufs_hba *hba) { - struct ufs_hba *hba = pci_get_drvdata(pdev); - /* disable interrupts */ ufshcd_int_config(hba, UFSHCD_INT_DISABLE); - free_irq(pdev->irq, hba); ufshcd_hba_stop(hba); ufshcd_hba_free(hba); scsi_remove_host(hba->host); scsi_host_put(hba->host); - 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 ufs_hba *hba) -{ - int err; - u64 dma_mask; - - /* - * If controller supports 64 bit addressing mode, then set the DMA - * mask to 64-bit, else set the DMA mask to 32-bit - */ - if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) - dma_mask = DMA_BIT_MASK(64); - else - dma_mask = DMA_BIT_MASK(32); - - err = pci_set_dma_mask(hba->pdev, dma_mask); - if (err) - return err; - - err = pci_set_consistent_dma_mask(hba->pdev, dma_mask); - - return err; } +EXPORT_SYMBOL_GPL(ufshcd_remove); /** - * ufshcd_probe - probe routine of the driver - * @pdev: pointer to PCI device handle - * @id: PCI device id - * + * ufshcd_init - Driver initialization routine + * @dev: pointer to device handle + * @hba_handle: driver private handle + * @mmio_base: base register address + * @irq: Interrupt line of device * Returns 0 on success, non-zero value on failure */ -static int ufshcd_probe(struct pci_dev *pdev, const struct pci_device_id *id) +int ufshcd_init(struct device *dev, struct ufs_hba **hba_handle, + void __iomem *mmio_base, unsigned int irq) { struct Scsi_Host *host; struct ufs_hba *hba; int err; - err = pci_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "pci_enable_device failed\n"); + if (!dev) { + dev_err(dev, + "Invalid memory reference for dev is NULL\n"); + err = -ENODEV; goto out_error; } - pci_set_master(pdev); + if (!mmio_base) { + dev_err(dev, + "Invalid memory reference for mmio_base is NULL\n"); + err = -ENODEV; + goto out_error; + } host = scsi_host_alloc(&ufshcd_driver_template, sizeof(struct ufs_hba)); if (!host) { - dev_err(&pdev->dev, "scsi_host_alloc failed\n"); + dev_err(dev, "scsi_host_alloc failed\n"); err = -ENOMEM; - goto out_disable; + goto out_error; } hba = shost_priv(host); - - err = pci_request_regions(pdev, UFSHCD); - if (err < 0) { - dev_err(&pdev->dev, "request regions failed\n"); - goto out_host_put; - } - - hba->mmio_base = pci_ioremap_bar(pdev, 0); - if (!hba->mmio_base) { - dev_err(&pdev->dev, "memory map failed\n"); - err = -ENOMEM; - goto out_release_regions; - } - hba->host = host; - hba->pdev = pdev; + hba->dev = dev; + hba->mmio_base = mmio_base; + hba->irq = irq; /* Read capabilities registers */ ufshcd_hba_capabilities(hba); @@ -1856,17 +1645,11 @@ static int ufshcd_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* Get UFS version supported by the controller */ hba->ufs_version = ufshcd_get_ufs_version(hba); - err = ufshcd_set_dma_mask(hba); - if (err) { - dev_err(&pdev->dev, "set dma mask failed\n"); - goto out_iounmap; - } - /* Allocate memory for host memory space */ err = ufshcd_memory_alloc(hba); if (err) { - dev_err(&pdev->dev, "Memory allocation failed\n"); - goto out_iounmap; + dev_err(hba->dev, "Memory allocation failed\n"); + goto out_disable; } /* Configure LRB */ @@ -1888,76 +1671,50 @@ static int ufshcd_probe(struct pci_dev *pdev, const struct pci_device_id *id) INIT_WORK(&hba->feh_workq, ufshcd_fatal_err_handler); /* IRQ registration */ - err = request_irq(pdev->irq, ufshcd_intr, IRQF_SHARED, UFSHCD, hba); + err = request_irq(irq, ufshcd_intr, IRQF_SHARED, UFSHCD, hba); if (err) { - dev_err(&pdev->dev, "request irq failed\n"); + dev_err(hba->dev, "request irq failed\n"); goto out_lrb_free; } /* Enable SCSI tag mapping */ err = scsi_init_shared_tag_map(host, host->can_queue); if (err) { - dev_err(&pdev->dev, "init shared queue failed\n"); + dev_err(hba->dev, "init shared queue failed\n"); goto out_free_irq; } - pci_set_drvdata(pdev, hba); - - err = scsi_add_host(host, &pdev->dev); + err = scsi_add_host(host, hba->dev); if (err) { - dev_err(&pdev->dev, "scsi_add_host failed\n"); + dev_err(hba->dev, "scsi_add_host failed\n"); goto out_free_irq; } /* Initialization routine */ err = ufshcd_initialize_hba(hba); if (err) { - dev_err(&pdev->dev, "Initialization failed\n"); - goto out_free_irq; + dev_err(hba->dev, "Initialization failed\n"); + goto out_remove_scsi_host; } + *hba_handle = hba; return 0; +out_remove_scsi_host: + scsi_remove_host(hba->host); out_free_irq: - free_irq(pdev->irq, hba); + free_irq(irq, hba); out_lrb_free: ufshcd_free_hba_memory(hba); -out_iounmap: - iounmap(hba->mmio_base); -out_release_regions: - pci_release_regions(pdev); -out_host_put: - scsi_host_put(host); out_disable: - pci_clear_master(pdev); - pci_disable_device(pdev); + scsi_host_put(host); out_error: return err; } +EXPORT_SYMBOL_GPL(ufshcd_init); -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_probe, - .remove = ufshcd_remove, - .shutdown = ufshcd_shutdown, -#ifdef CONFIG_PM - .suspend = ufshcd_suspend, - .resume = ufshcd_resume, -#endif -}; - -module_pci_driver(ufshcd_pci_driver); - -MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>, " - "Vinayak Holikatti <h.vinayak@samsung.com>"); -MODULE_DESCRIPTION("Generic UFS host controller driver"); +MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@samsung.com>"); +MODULE_AUTHOR("Vinayak Holikatti <h.vinayak@samsung.com>"); +MODULE_DESCRIPTION("Generic UFS host controller driver Core"); MODULE_LICENSE("GPL"); MODULE_VERSION(UFSHCD_DRIVER_VERSION); |