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Update DA9063 driver to use IPC instead of I2C 

Getting PMIC status through SCU

BugzID: 71440
This commit is contained in:
Alexandre Bard 2021-04-26 17:56:21 +02:00
parent 77c73457f0
commit 9b969ee22a
3 changed files with 54 additions and 97 deletions
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1
board/netmodule/imx8_nmhw23/Makefile
View File

@ -9,3 +9,4 @@ obj-y += imx8_nmhw23.o
obj-$(CONFIG_SPL_BUILD) += spl.o
obj-y += ../nm-common/bdparser.o ../nm-common/board_descriptor.o
obj-y += ../nm-common/da9063.o

140
board/netmodule/nm-common/da9063.c
View File

@ -3,7 +3,7 @@
*
* Dialog DA9063 PMIC
*
* Copyright (C) 2018-2019 NetModule AG - http://www.netmodule.com/
* Copyright (C) 2021 NetModule AG - http://www.netmodule.com/
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -13,82 +13,69 @@
#include <i2c.h>
#include "da9063.h"
#include "asm/mach-imx/sci/types.h"
#include "asm/mach-imx/sci/ipc.h"
#include "asm/mach-imx/sci/svc/misc/api.h"
#include "asm/arch-imx8/MX8_mu.h"
#define SCU_MU_ADDR 0x5D1C0000
static int da9063_i2c_bus = 0;
static int bus_claimed = 0;
static sc_ipc_t ipc;
static bool initialized = false;
static int switch_i2c_bus(void)
void da9063_init(void)
{
int old_bus;
old_bus = i2c_get_bus_num();
if (old_bus != da9063_i2c_bus) {
i2c_set_bus_num(da9063_i2c_bus);
sc_err_t err = sc_ipc_open(&ipc, SCU_MU_ADDR);
if (err != SC_ERR_NONE) {
printf("Could not initialize IPC with SCU, err: %d\n", err);
return;
}
bus_claimed++;
return old_bus;
}
static void revert_i2c_bus(int bus)
{
if (da9063_i2c_bus != bus) {
i2c_set_bus_num(bus);
}
bus_claimed--;
}
void da9063_init(int i2c_bus)
{
da9063_i2c_bus = i2c_bus;
}
int da9063_claim_i2c_bus(void)
{
return switch_i2c_bus();
}
void da9063_release_i2c_bus(int bus)
{
revert_i2c_bus(bus);
initialized = true;
}
int da9063_get_reg(uint32_t reg, uint8_t* val)
{
int ret;
uint8_t temp;
sc_err_t ret;
uint8_t read = 1;
uint32_t param1;
uint32_t data = 0;
uint32_t data_len = 1;
/* Argument check */
if ((reg >= 0x200) || (val==0)) {
return -1;
}
/* State check. Has bus been claimed */
if (bus_claimed == 0) {
/* State check. Is RPC initialized */
if (!initialized) {
return -2;
}
*val = 0;
if (reg < 0x100) {
ret = i2c_read(CONFIG_PMIC_I2C_ADDR+0, reg & 0xFF, 1, &temp, 1);
} else {
ret = i2c_read(CONFIG_PMIC_I2C_ADDR+1, reg & 0xFF, 1, &temp, 1);
if (reg < 0x100)
param1 = CONFIG_PMIC_I2C_ADDR | reg << 8 | read << 16;
else
param1 = (CONFIG_PMIC_I2C_ADDR + 1) | reg << 8 | read << 16;
ret = sc_misc_board_ioctl(ipc, &param1, &data, &data_len);
if (ret != SC_ERR_NONE) {
printf("IPC failed with error: %d\n", ret);
return -3;
}
if (ret == 0)
*val = temp;
return ret;
*val = data;
return 0;
}
int da9063_set_reg(uint32_t reg, uint8_t val)
{
int ret;
sc_err_t ret;
uint8_t read = 0;
uint32_t param1 = CONFIG_PMIC_I2C_ADDR | reg << 8 | read << 16;
uint32_t data = val;
uint32_t data_len = 1;
/* Argument check */
if (reg >= 0x200) {
@ -96,45 +83,20 @@ int da9063_set_reg(uint32_t reg, uint8_t val)
}
/* State check. Has bus been claimed */
if (bus_claimed == 0) {
if (!initialized) {
return -2;
}
if (reg < 0x100) {
ret = i2c_write(CONFIG_PMIC_I2C_ADDR+0, reg & 0xFF, 1, &val, 1);
} else {
ret = i2c_write(CONFIG_PMIC_I2C_ADDR+1, reg & 0xFF, 1, &val, 1);
if (reg < 0x100)
param1 = CONFIG_PMIC_I2C_ADDR | reg << 8 | read << 16;
else
param1 = (CONFIG_PMIC_I2C_ADDR + 1) | reg << 8 | read << 16;
ret = sc_misc_board_ioctl(ipc, &param1, &data, &data_len);
if (ret != SC_ERR_NONE) {
printf("IPC failed with error: %d\n", ret);
return -3;
}
if (ret != 0)
puts("da9063 write error\n");
return ret;
return 0;
}
void da9063_set_gpio(unsigned bit, int state)
{
int pmic_reg;
int ret;
uint8_t bitmask;
uint8_t reg = 0x00;
if (bit <= 7) {
pmic_reg = PMIC_REG_GPIO_MODE0_7;
bitmask = 1U << (bit-0);
}
else {
pmic_reg = PMIC_REG_GPIO_MODE8_15;
bitmask = 1U << (bit-8);
}
ret = da9063_get_reg(pmic_reg, &reg);
if (ret == 0) {
if (state) reg |= bitmask;
else reg &= ~bitmask;
(void)da9063_set_reg(pmic_reg, reg);
}
}

10
board/netmodule/nm-common/da9063.h
View File

@ -3,7 +3,7 @@
*
* Dialog DA9063 PMIC
*
* Copyright (C) 2018-2019 NetModule AG - http://www.netmodule.com/
* Copyright (C) 2021 NetModule AG - http://www.netmodule.com/
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -88,16 +88,10 @@
#define PMIC_REG_CONFIG_ID 0x184 /* OTP Config ID <ver.rev> */
extern void da9063_init(int i2c_bus);
extern int da9063_claim_i2c_bus(void);
extern void da9063_release_i2c_bus(int bus);
extern void da9063_init(void);
extern int da9063_get_reg(uint32_t reg, uint8_t* val);
extern int da9063_set_reg(uint32_t reg, uint8_t val);
extern void da9063_set_gpio(unsigned bit, int state);
#endif /* DA9063_H */