uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

 * (C) Copyright 2010

 * Texas Instruments, <www.ti.com>

 */

#include <config.h>

​

#include <twl6030.h>

​

static struct twl6030_data *twl;

​

static struct twl6030_data twl6030_info = {

    .chip_type  = chip_TWL6030,

    .adc_rbase  = GPCH0_LSB,

    .adc_ctrl   = CTRL_P2,

    .adc_enable = CTRL_P2_SP2,

    .vbat_mult  = TWL6030_VBAT_MULT,

    .vbat_shift = TWL6030_VBAT_SHIFT,

};

​

static struct twl6030_data twl6032_info = {

    .chip_type  = chip_TWL6032,

    .adc_rbase  = TWL6032_GPCH0_LSB,

    .adc_ctrl   = TWL6032_CTRL_P1,

    .adc_enable = CTRL_P1_SP1,

    .vbat_mult  = TWL6032_VBAT_MULT,

    .vbat_shift = TWL6032_VBAT_SHIFT,

};

​

​

static int twl6030_gpadc_read_channel(u8 channel_no)

{

    u8 lsb = 0;

    u8 msb = 0;

    int ret = 0;

​

    ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC,

                  twl->adc_rbase + channel_no * 2, &lsb);

    if (ret)

        return ret;

​

    ret = twl6030_i2c_read_u8(TWL6030_CHIP_ADC,

                  twl->adc_rbase + 1 + channel_no * 2, &msb);

    if (ret)

        return ret;

​

    return (msb << 8) | lsb;

}

​

static int twl6030_gpadc_sw2_trigger(void)

{

    u8 val;

    int ret = 0;

​

    ret = twl6030_i2c_write_u8(TWL6030_CHIP_ADC,

                   twl->adc_ctrl, twl->adc_enable);

    if (ret)

        return ret;

​

    /* Waiting until the SW1 conversion ends*/

    val =  CTRL_P2_BUSY;

​

    while (!((val & CTRL_P2_EOCP2) && (!(val & CTRL_P2_BUSY)))) {