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drivers: i2c: Update sam drivers to use pinctrl

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This update Atmel sam i2c drivers to use pinctrl driver and API. It
updates all boards with new pinctrl groups format. This add missing
i2c-0 alias into sam4l_ek board.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit is contained in:
Gerson Fernando Budke 2022-03-12 15:56:05 -03:00 • committed by Marti Bolivar
commit a27304b658
23 changed files with 127 additions and 77 deletions
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15
drivers/i2c/i2c_sam4l_twim.c
View file

@ -22,6 +22,7 @@
#include <init.h>
#include <soc.h>
#include <drivers/i2c.h>
#include <drivers/pinctrl.h>
#define LOG_LEVEL CONFIG_I2C_LOG_LEVEL
#include <logging/log.h>
@ -64,8 +65,7 @@ struct i2c_sam_twim_dev_cfg {
Twim *regs;
void (*irq_config)(void);
uint32_t bitrate;
const struct soc_gpio_pin *pin_list;
uint8_t pin_list_size;
const struct pinctrl_dev_config *pcfg;
uint8_t periph_id;
uint8_t irq_id;
@ -552,7 +552,10 @@ static int i2c_sam_twim_initialize(const struct device *dev)
k_sem_init(&data->sem, 0, 1);
/* Connect pins to the peripheral */
soc_gpio_list_configure(cfg->pin_list, cfg->pin_list_size);
ret = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) {
return ret;
}
/* Enable module's clock */
soc_pmc_peripheral_enable(cfg->periph_id);
@ -599,6 +602,7 @@ static const struct i2c_driver_api i2c_sam_twim_driver_api = {
.hs_data_strength_low = DT_INST_ENUM_IDX(n, hs_data_strength_low)
#define I2C_TWIM_SAM_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
static void i2c##n##_sam_irq_config(void) \
{ \
IRQ_CONNECT(DT_INST_IRQN(n), DT_INST_IRQ(n, priority), \
@ -606,15 +610,12 @@ static const struct i2c_driver_api i2c_sam_twim_driver_api = {
DEVICE_DT_INST_GET(n), 0); \
} \
\
static const struct soc_gpio_pin pins_twim##n[] = ATMEL_SAM_DT_INST_PINS(n); \
\
static const struct i2c_sam_twim_dev_cfg i2c##n##_sam_config = {\
.regs = (Twim *)DT_INST_REG_ADDR(n), \
.irq_config = i2c##n##_sam_irq_config, \
.periph_id = DT_INST_PROP(n, peripheral_id), \
.irq_id = DT_INST_IRQN(n), \
.pin_list = pins_twim##n, \
.pin_list_size = ARRAY_SIZE(pins_twim##n), \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
.bitrate = DT_INST_PROP(n, clock_frequency), \
.hs_master_code = DT_INST_ENUM_IDX(n, hs_master_code), \
I2C_TWIM_SAM_SLEW_REGS(n), \

15
drivers/i2c/i2c_sam_twi.c
View file

@ -22,6 +22,7 @@
#include <init.h>
#include <soc.h>
#include <drivers/i2c.h>
#include <drivers/pinctrl.h>
#define LOG_LEVEL CONFIG_I2C_LOG_LEVEL
#include <logging/log.h>
@ -41,8 +42,7 @@ struct i2c_sam_twi_dev_cfg {
Twi *regs;
void (*irq_config)(void);
uint32_t bitrate;
const struct soc_gpio_pin *pin_list;
uint8_t pin_list_size;
const struct pinctrl_dev_config *pcfg;
uint8_t periph_id;
uint8_t irq_id;
};
@ -303,7 +303,10 @@ static int i2c_sam_twi_initialize(const struct device *dev)
k_sem_init(&dev_data->sem, 0, 1);
/* Connect pins to the peripheral */
soc_gpio_list_configure(dev_cfg->pin_list, dev_cfg->pin_list_size);
ret = pinctrl_apply_state(dev_cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) {
return ret;
}
/* Enable module's clock */
soc_pmc_peripheral_enable(dev_cfg->periph_id);
@ -333,6 +336,7 @@ static const struct i2c_driver_api i2c_sam_twi_driver_api = {
};
#define I2C_TWI_SAM_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
static void i2c##n##_sam_irq_config(void) \
{ \
IRQ_CONNECT(DT_INST_IRQN(n), DT_INST_IRQ(n, priority), \
@ -340,15 +344,12 @@ static const struct i2c_driver_api i2c_sam_twi_driver_api = {
DEVICE_DT_INST_GET(n), 0); \
} \
\
static const struct soc_gpio_pin pins_twi##n[] = ATMEL_SAM_DT_INST_PINS(n); \
\
static const struct i2c_sam_twi_dev_cfg i2c##n##_sam_config = { \
.regs = (Twi *)DT_INST_REG_ADDR(n), \
.irq_config = i2c##n##_sam_irq_config, \
.periph_id = DT_INST_PROP(n, peripheral_id), \
.irq_id = DT_INST_IRQN(n), \
.pin_list = pins_twi##n, \
.pin_list_size = ARRAY_SIZE(pins_twi##n), \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
.bitrate = DT_INST_PROP(n, clock_frequency), \
}; \
\

15
drivers/i2c/i2c_sam_twihs.c
View file

@ -20,6 +20,7 @@
#include <init.h>
#include <soc.h>
#include <drivers/i2c.h>
#include <drivers/pinctrl.h>
#define LOG_LEVEL CONFIG_I2C_LOG_LEVEL
#include <logging/log.h>
@ -41,8 +42,7 @@ struct i2c_sam_twihs_dev_cfg {
Twihs *regs;
void (*irq_config)(void);
uint32_t bitrate;
const struct soc_gpio_pin *pin_list;
uint8_t pin_list_size;
const struct pinctrl_dev_config *pcfg;
uint8_t periph_id;
uint8_t irq_id;
};
@ -290,7 +290,10 @@ static int i2c_sam_twihs_initialize(const struct device *dev)
k_sem_init(&dev_data->sem, 0, 1);
/* Connect pins to the peripheral */
soc_gpio_list_configure(dev_cfg->pin_list, dev_cfg->pin_list_size);
ret = pinctrl_apply_state(dev_cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) {
return ret;
}
/* Enable module's clock */
soc_pmc_peripheral_enable(dev_cfg->periph_id);
@ -320,6 +323,7 @@ static const struct i2c_driver_api i2c_sam_twihs_driver_api = {
};
#define I2C_TWIHS_SAM_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
static void i2c##n##_sam_irq_config(void) \
{ \
IRQ_CONNECT(DT_INST_IRQN(n), DT_INST_IRQ(n, priority), \
@ -327,15 +331,12 @@ static const struct i2c_driver_api i2c_sam_twihs_driver_api = {
DEVICE_DT_INST_GET(n), 0); \
} \
\
static const struct soc_gpio_pin pins_twihs##n[] = ATMEL_SAM_DT_INST_PINS(n); \
\
static const struct i2c_sam_twihs_dev_cfg i2c##n##_sam_config = {\
.regs = (Twihs *)DT_INST_REG_ADDR(n), \
.irq_config = i2c##n##_sam_irq_config, \
.periph_id = DT_INST_PROP(n, peripheral_id), \
.irq_id = DT_INST_IRQN(n), \
.pin_list = pins_twihs##n, \
.pin_list_size = ARRAY_SIZE(pins_twihs##n), \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
.bitrate = DT_INST_PROP(n, clock_frequency), \
}; \
\