mirror of https://gitee.com/openkylin/linux.git
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2013 Freescale Semiconductor, Inc.
|
|
*
|
|
* The code contained herein is licensed under the GNU General Public
|
|
* License. You may obtain a copy of the GNU General Public License
|
|
* Version 2 or later at the following locations:
|
|
*
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/mfd/syscon.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#define REG_SET 0x4
|
|
#define REG_CLR 0x8
|
|
|
|
#define ANADIG_REG_CORE 0x140
|
|
#define ANADIG_USB1_CHRG_DETECT 0x1b0
|
|
#define ANADIG_USB2_CHRG_DETECT 0x210
|
|
#define ANADIG_DIGPROG 0x260
|
|
|
|
#define BM_ANADIG_REG_CORE_FET_ODRIVE 0x20000000
|
|
#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x80000
|
|
#define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x100000
|
|
|
|
static struct regmap *anatop;
|
|
|
|
static void imx_anatop_enable_fet_odrive(bool enable)
|
|
{
|
|
regmap_write(anatop, ANADIG_REG_CORE + (enable ? REG_SET : REG_CLR),
|
|
BM_ANADIG_REG_CORE_FET_ODRIVE);
|
|
}
|
|
|
|
void imx_anatop_pre_suspend(void)
|
|
{
|
|
imx_anatop_enable_fet_odrive(true);
|
|
}
|
|
|
|
void imx_anatop_post_resume(void)
|
|
{
|
|
imx_anatop_enable_fet_odrive(false);
|
|
}
|
|
|
|
void imx_anatop_usb_chrg_detect_disable(void)
|
|
{
|
|
regmap_write(anatop, ANADIG_USB1_CHRG_DETECT,
|
|
BM_ANADIG_USB_CHRG_DETECT_EN_B
|
|
| BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
|
|
regmap_write(anatop, ANADIG_USB2_CHRG_DETECT,
|
|
BM_ANADIG_USB_CHRG_DETECT_EN_B |
|
|
BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
|
|
}
|
|
|
|
u32 imx_anatop_get_digprog(void)
|
|
{
|
|
u32 val;
|
|
|
|
regmap_read(anatop, ANADIG_DIGPROG, &val);
|
|
return val;
|
|
}
|
|
|
|
void __init imx_anatop_init(void)
|
|
{
|
|
anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop");
|
|
if (IS_ERR(anatop)) {
|
|
pr_err("%s: failed to find imx6q-anatop regmap!\n", __func__);
|
|
return;
|
|
}
|
|
}
|