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