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drivers: i2c: i2c_omap: Add pinctrl 

Extend the I2c OMAP driver to automatically mux pins require by this
interfaces.

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
pull/85789/head
Daniel Schultz 5 months ago committed by Benjamin Cabé
parent
d7eab212bc
commit
68dc1b5ebf
2 changed files with 20 additions and 3 deletions
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  1. 1
      drivers/i2c/Kconfig.omap
  2. 22
      drivers/i2c/i2c_omap.c

1
drivers/i2c/Kconfig.omap
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@ -7,6 +7,7 @@ config I2C_OMAP @@ -7,6 +7,7 @@ config I2C_OMAP
bool "TI OMAP I2C Driver"
default y
depends on DT_HAS_TI_OMAP_I2C_ENABLED
select PINCTRL
help
Enable the I2C driver for TI OMAP SoCs.

22
drivers/i2c/i2c_omap.c
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@ -12,6 +12,7 @@ @@ -12,6 +12,7 @@
#include <zephyr/logging/log.h>
#include <zephyr/irq.h>
#include <zephyr/drivers/i2c.h>
#include <zephyr/drivers/pinctrl.h>
#ifdef CONFIG_I2C_OMAP_BUS_RECOVERY
#include "i2c_bitbang.h"
@ -104,6 +105,7 @@ struct i2c_omap_cfg { @@ -104,6 +105,7 @@ struct i2c_omap_cfg {
DEVICE_MMIO_NAMED_ROM(base);
uint32_t irq;
uint32_t speed;
const struct pinctrl_dev_config *pcfg;
};
enum i2c_omap_speed {
@ -680,6 +682,13 @@ static int i2c_omap_init(const struct device *dev) @@ -680,6 +682,13 @@ static int i2c_omap_init(const struct device *dev)
{
struct i2c_omap_data *data = DEV_DATA(dev);
const struct i2c_omap_cfg *cfg = DEV_CFG(dev);
int ret;
ret = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) {
LOG_ERR("failed to apply pinctrl");
return ret;
}
k_sem_init(&data->lock, 1, 1);
/* Set the speed for I2C */
@ -692,17 +701,24 @@ static int i2c_omap_init(const struct device *dev) @@ -692,17 +701,24 @@ static int i2c_omap_init(const struct device *dev)
}
#define I2C_OMAP_INIT(inst) \
PINCTRL_DT_INST_DEFINE(inst); \
LOG_INSTANCE_REGISTER(omap_i2c, inst, CONFIG_I2C_LOG_LEVEL); \
static const struct i2c_omap_cfg i2c_omap_cfg_##inst = { \
DEVICE_MMIO_NAMED_ROM_INIT(base, DT_DRV_INST(inst)), \
.irq = DT_INST_IRQN(inst), \
.speed = DT_INST_PROP(inst, clock_frequency), \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(inst), \
}; \
\
static struct i2c_omap_data i2c_omap_data_##inst; \
\
I2C_DEVICE_DT_INST_DEFINE(inst, i2c_omap_init, NULL, &i2c_omap_data_##inst, \
&i2c_omap_cfg_##inst, POST_KERNEL, CONFIG_I2C_INIT_PRIORITY, \
&i2c_omap_api);
I2C_DEVICE_DT_INST_DEFINE(inst, \
i2c_omap_init, \
NULL, \
&i2c_omap_data_##inst, \
&i2c_omap_cfg_##inst, \
POST_KERNEL, \
CONFIG_I2C_INIT_PRIORITY, \
&i2c_omap_api);
DT_INST_FOREACH_STATUS_OKAY(I2C_OMAP_INIT)

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