mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-09-21 03:43:03 +00:00
fc9499e55a
* Package version: T713XXU2BQCO Change-Id: I293d9e7f2df458c512d59b7a06f8ca6add610c99
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
|
|
* sm5705-muic-afc.c - SM5705 AFC micro USB switch device driver
|
|
*
|
|
* Copyright (C) 2014 Samsung Electronics
|
|
* Thomas Ryu <smilesr.ryu@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/host_notify.h>
|
|
|
|
#include <linux/muic/muic.h>
|
|
#include <linux/muic/sm5705-muic.h>
|
|
|
|
#if defined(CONFIG_MUIC_NOTIFIER)
|
|
#include <linux/muic/muic_notifier.h>
|
|
#endif /* CONFIG_MUIC_NOTIFIER */
|
|
|
|
#if defined(CONFIG_VBUS_NOTIFIER)
|
|
#include <linux/vbus_notifier.h>
|
|
#endif /* CONFIG_VBUS_NOTIFIER */
|
|
|
|
#if defined (CONFIG_OF)
|
|
#include <linux/of_device.h>
|
|
#include <linux/of_gpio.h>
|
|
#endif /* CONFIG_OF */
|
|
|
|
|
|
int set_afc_ctrl_reg(struct sm5705_muic_data *muic_data, int shift, bool on)
|
|
{
|
|
struct i2c_client *i2c = muic_data->i2c;
|
|
u8 reg_val;
|
|
int ret = 0;
|
|
|
|
ret = sm5705_i2c_read_byte(i2c, SM5705_MUIC_REG_AFC_CTRL);
|
|
if (ret < 0)
|
|
printk(KERN_ERR "[muic] %s(%d)\n", __func__, ret);
|
|
if (on)
|
|
reg_val = ret | (0x1 << shift);
|
|
else
|
|
reg_val = ret & ~(0x1 << shift);
|
|
|
|
if (reg_val ^ ret) {
|
|
printk(KERN_DEBUG "[muic] %s reg_val(0x%x)!=AFC_CTRL reg(0x%x), update reg\n",
|
|
__func__, reg_val, ret);
|
|
|
|
ret = sm5705_i2c_write_byte(i2c, SM5705_MUIC_REG_AFC_CTRL,
|
|
reg_val);
|
|
if (ret < 0)
|
|
printk(KERN_ERR "[muic] %s err write AFC_CTRL(%d)\n",
|
|
__func__, ret);
|
|
} else {
|
|
printk(KERN_DEBUG "[muic] %s (0x%x), just return\n",
|
|
__func__, ret);
|
|
return 0;
|
|
}
|
|
|
|
ret = sm5705_i2c_read_byte(i2c, SM5705_MUIC_REG_AFC_CTRL);
|
|
if (ret < 0)
|
|
printk(KERN_ERR "[muic] %s err read AFC_CTRL(%d)\n",
|
|
__func__, ret);
|
|
else
|
|
printk(KERN_DEBUG "[muic] %s AFC_CTRL reg after change(0x%x)\n",
|
|
__func__, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int set_afc_ctrl_enafc(struct sm5705_muic_data *muic_data, bool on)
|
|
{
|
|
int shift = AFC_ENAFC_SHIFT;
|
|
int ret = 0;
|
|
|
|
ret = set_afc_ctrl_reg(muic_data, shift, on);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int set_afc_vbus_read(struct sm5705_muic_data *muic_data, bool on)
|
|
{
|
|
int shift = AFC_VBUS_READ_SHIFT;
|
|
int ret = 0;
|
|
|
|
ret = set_afc_ctrl_reg(muic_data, shift, on);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int set_afc_dm_reset(struct sm5705_muic_data *muic_data, bool on)
|
|
{
|
|
int shift = AFC_DM_RESET_SHIFT;
|
|
int ret = 0;
|
|
|
|
ret = set_afc_ctrl_reg(muic_data, shift, on);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int set_afc_dp_reset(struct sm5705_muic_data *muic_data, bool on)
|
|
{
|
|
int shift = AFC_DP_RESET_SHIFT;
|
|
int ret = 0;
|
|
|
|
ret = set_afc_ctrl_reg(muic_data, shift, on);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|