mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
2147a16983
Use CONFIG_IS_ENABLED() macro, which provides more convenient
way to check $(SPL)DM_I2C/$(SPL)DM_I2C_GPIO configs
for both SPL and U-Boot proper.
CONFIG_IS_ENABLED(DM_I2C) expands to:
- 1 if CONFIG_SPL_BUILD is undefined and CONFIG_DM_I2C is set to 'y',
- 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_DM_I2C is set to 'y',
- 0 otherwise.
All occurences were replaced automatically using these bash cmds:
$ find . -type f -exec sed -i
's/ifndef CONFIG_DM_I2C/if !CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
's/ifdef CONFIG_DM_I2C/if CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
's/defined(CONFIG_DM_I2C)/CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
's/ifndef CONFIG_DM_I2C_GPIO/if !CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
's/ifdef CONFIG_DM_I2C_GPIO/if CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
's/defined(CONFIG_DM_I2C_GPIO)/CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
150 lines
3.7 KiB
C
150 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2011-2013
|
|
* Texas Instruments, <www.ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <power/tps65217.h>
|
|
|
|
struct udevice *tps65217_dev __attribute__((section(".data"))) = NULL;
|
|
|
|
/**
|
|
* tps65217_reg_read() - Generic function that can read a TPS65217 register
|
|
* @src_reg: Source register address
|
|
* @src_val: Address of destination variable
|
|
* @return: 0 for success, not 0 on failure.
|
|
*/
|
|
int tps65217_reg_read(uchar src_reg, uchar *src_val)
|
|
{
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
return i2c_read(TPS65217_CHIP_PM, src_reg, 1, src_val, 1);
|
|
#else
|
|
return dm_i2c_read(tps65217_dev, src_reg, src_val, 1);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* tps65217_reg_write() - Generic function that can write a TPS65217 PMIC
|
|
* register or bit field regardless of protection
|
|
* level.
|
|
*
|
|
* @prot_level: Register password protection. Use
|
|
* TPS65217_PROT_LEVEL_NONE,
|
|
* TPS65217_PROT_LEVEL_1 or TPS65217_PROT_LEVEL_2
|
|
* @dest_reg: Register address to write.
|
|
* @dest_val: Value to write.
|
|
* @mask: Bit mask (8 bits) to be applied. Function will only
|
|
* change bits that are set in the bit mask.
|
|
*
|
|
* @return: 0 for success, not 0 on failure, as per the i2c API
|
|
*/
|
|
int tps65217_reg_write(uchar prot_level, uchar dest_reg, uchar dest_val,
|
|
uchar mask)
|
|
{
|
|
uchar read_val;
|
|
uchar xor_reg;
|
|
int ret;
|
|
|
|
/*
|
|
* If we are affecting only a bit field, read dest_reg and apply the
|
|
* mask
|
|
*/
|
|
if (mask != TPS65217_MASK_ALL_BITS) {
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
ret = i2c_read(TPS65217_CHIP_PM, dest_reg, 1, &read_val, 1);
|
|
#else
|
|
ret = dm_i2c_read(tps65217_dev, dest_reg, &read_val, 1);
|
|
#endif
|
|
if (ret)
|
|
return ret;
|
|
|
|
read_val &= (~mask);
|
|
read_val |= (dest_val & mask);
|
|
dest_val = read_val;
|
|
}
|
|
|
|
if (prot_level > 0) {
|
|
xor_reg = dest_reg ^ TPS65217_PASSWORD_UNLOCK;
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
ret = i2c_write(TPS65217_CHIP_PM, TPS65217_PASSWORD, 1,
|
|
&xor_reg, 1);
|
|
#else
|
|
ret = dm_i2c_write(tps65217_dev, TPS65217_PASSWORD,
|
|
&xor_reg, 1);
|
|
#endif
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
ret = i2c_write(TPS65217_CHIP_PM, dest_reg, 1, &dest_val, 1);
|
|
#else
|
|
ret = dm_i2c_write(tps65217_dev, dest_reg, &dest_val, 1);
|
|
#endif
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (prot_level == TPS65217_PROT_LEVEL_2) {
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
ret = i2c_write(TPS65217_CHIP_PM, TPS65217_PASSWORD, 1,
|
|
&xor_reg, 1);
|
|
#else
|
|
ret = dm_i2c_write(tps65217_dev, TPS65217_PASSWORD,
|
|
&xor_reg, 1);
|
|
#endif
|
|
if (ret)
|
|
return ret;
|
|
|
|
#if !CONFIG_IS_ENABLED(DM_I2C)
|
|
ret = i2c_write(TPS65217_CHIP_PM, dest_reg, 1, &dest_val, 1);
|
|
#else
|
|
ret = dm_i2c_write(tps65217_dev, dest_reg, &dest_val, 1);
|
|
#endif
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* tps65217_voltage_update() - Function to change a voltage level, as this
|
|
* is a multi-step process.
|
|
* @dc_cntrl_reg: DC voltage control register to change.
|
|
* @volt_sel: New value for the voltage register
|
|
* @return: 0 for success, not 0 on failure.
|
|
*/
|
|
int tps65217_voltage_update(uchar dc_cntrl_reg, uchar volt_sel)
|
|
{
|
|
if ((dc_cntrl_reg != TPS65217_DEFDCDC1) &&
|
|
(dc_cntrl_reg != TPS65217_DEFDCDC2) &&
|
|
(dc_cntrl_reg != TPS65217_DEFDCDC3))
|
|
return 1;
|
|
|
|
/* set voltage level */
|
|
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, dc_cntrl_reg, volt_sel,
|
|
TPS65217_MASK_ALL_BITS))
|
|
return 1;
|
|
|
|
/* set GO bit to initiate voltage transition */
|
|
if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFSLEW,
|
|
TPS65217_DCDC_GO, TPS65217_DCDC_GO))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int power_tps65217_init(unsigned char bus)
|
|
{
|
|
#if CONFIG_IS_ENABLED(DM_I2C)
|
|
struct udevice *dev = NULL;
|
|
int rc;
|
|
|
|
rc = i2c_get_chip_for_busnum(bus, TPS65217_CHIP_PM, 1, &dev);
|
|
if (rc)
|
|
return rc;
|
|
tps65217_dev = dev;
|
|
#endif
|
|
return 0;
|
|
}
|