blk: rq_data_dir() should not return a boolean
[cris-mirror.git] / arch / arm / mach-imx / pm-imx3.c
blob6a07006ff0f48136591ff0909636cd73b774bf08
1 /*
2 * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
4 * The code contained herein is licensed under the GNU General Public
5 * License. You may obtain a copy of the GNU General Public License
6 * Version 2 or later at the following locations:
8 * http://www.opensource.org/licenses/gpl-license.html
9 * http://www.gnu.org/copyleft/gpl.html
11 #include <linux/io.h>
13 #include "common.h"
14 #include "crmregs-imx3.h"
15 #include "devices/devices-common.h"
16 #include "hardware.h"
19 * Set cpu low power mode before WFI instruction. This function is called
20 * mx3 because it can be used for mx31 and mx35.
21 * Currently only WAIT_MODE is supported.
23 void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode)
25 int reg = __raw_readl(mx3_ccm_base + MXC_CCM_CCMR);
26 reg &= ~MXC_CCM_CCMR_LPM_MASK;
28 switch (mode) {
29 case MX3_WAIT:
30 if (cpu_is_mx35())
31 reg |= MXC_CCM_CCMR_LPM_WAIT_MX35;
32 __raw_writel(reg, mx3_ccm_base + MXC_CCM_CCMR);
33 break;
34 default:
35 pr_err("Unknown cpu power mode: %d\n", mode);
36 return;