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5cb5d961 MC |
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 | } |