| Micky Ching | 5cb5d96 | 2014-10-10 13:58:44 +0800 | [diff] [blame] | 1 | /* Driver for Realtek PCI-Express card reader |
| 2 | * |
| 3 | * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License as published by the |
| 7 | * Free Software Foundation; either version 2, or (at your option) any |
| 8 | * later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
| 17 | * |
| 18 | * Author: |
| 19 | * Micky Ching <micky_ching@realsil.com.cn> |
| 20 | */ |
| 21 | |
| 22 | #include <linux/mfd/rtsx_pci.h> |
| 23 | #include "rtsx_pcr.h" |
| 24 | |
| 25 | int rtsx_gops_pm_reset(struct rtsx_pcr *pcr) |
| 26 | { |
| 27 | int err; |
| 28 | |
| 29 | /* init aspm */ |
| 30 | rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, 0xFF, 0x00); |
| 31 | err = rtsx_pci_update_cfg_byte(pcr, LCTLR, ~LCTLR_ASPM_CTL_MASK, 0x00); |
| 32 | if (err < 0) |
| 33 | return err; |
| 34 | |
| 35 | /* reset PM_CTRL3 before send buffer cmd */ |
| 36 | return rtsx_pci_write_register(pcr, PM_CTRL3, D3_DELINK_MODE_EN, 0x00); |
| 37 | } |