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drivers: i2c_imx: add pin control support

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Add pin control support to i2c_imx driver.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2022-04-25 17:09:31 -05:00 • committed by David Leach
commit 7299a2994a
2 changed files with 11 additions and 1 deletions
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10
drivers/i2c/i2c_imx.c
View file

@ -1,5 +1,6 @@
/* /*
* Copyright (c) 2018 Diego Sueiro, <diego.sueiro@gmail.com> * Copyright (c) 2018 Diego Sueiro, <diego.sueiro@gmail.com>
* Copyright 2022 NXP
* *
* SPDX-License-Identifier: Apache-2.0 * SPDX-License-Identifier: Apache-2.0
*/ */
@ -11,6 +12,7 @@
#include <soc.h> #include <soc.h>
#include <i2c_imx.h> #include <i2c_imx.h>
#include <zephyr/sys/util.h> #include <zephyr/sys/util.h>
#include <zephyr/drivers/pinctrl.h>
#include <zephyr/logging/log.h> #include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(i2c_imx); LOG_MODULE_REGISTER(i2c_imx);
@ -24,6 +26,7 @@ struct i2c_imx_config {
I2C_Type *base; I2C_Type *base;
void (*irq_config_func)(const struct device *dev); void (*irq_config_func)(const struct device *dev);
uint32_t bitrate; uint32_t bitrate;
const struct pinctrl_dev_config *pincfg;
}; };
struct i2c_master_transfer { struct i2c_master_transfer {
@ -339,6 +342,11 @@ static int i2c_imx_init(const struct device *dev)
k_sem_init(&data->device_sync_sem, 0, K_SEM_MAX_LIMIT); k_sem_init(&data->device_sync_sem, 0, K_SEM_MAX_LIMIT);
error = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);
if (error) {
return error;
}
bitrate_cfg = i2c_map_dt_bitrate(config->bitrate); bitrate_cfg = i2c_map_dt_bitrate(config->bitrate);
error = i2c_imx_configure(dev, I2C_MODE_MASTER | bitrate_cfg); error = i2c_imx_configure(dev, I2C_MODE_MASTER | bitrate_cfg);
@ -357,12 +365,14 @@ static const struct i2c_driver_api i2c_imx_driver_api = {
}; };
#define I2C_IMX_INIT(n) \ #define I2C_IMX_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
static void i2c_imx_config_func_##n(const struct device *dev); \ static void i2c_imx_config_func_##n(const struct device *dev); \
\ \
static const struct i2c_imx_config i2c_imx_config_##n = { \ static const struct i2c_imx_config i2c_imx_config_##n = { \
.base = (I2C_Type *)DT_INST_REG_ADDR(n), \ .base = (I2C_Type *)DT_INST_REG_ADDR(n), \
.irq_config_func = i2c_imx_config_func_##n, \ .irq_config_func = i2c_imx_config_func_##n, \
.bitrate = DT_INST_PROP(n, clock_frequency), \ .bitrate = DT_INST_PROP(n, clock_frequency), \
.pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
}; \ }; \
\ \
static struct i2c_imx_data i2c_imx_data_##n; \ static struct i2c_imx_data i2c_imx_data_##n; \

2
dts/bindings/i2c/fsl,imx21-i2c.yaml
View file

@ -5,7 +5,7 @@ description: i.MX I2C node
compatible: "fsl,imx21-i2c" compatible: "fsl,imx21-i2c"
include: i2c-controller.yaml include: [i2c-controller.yaml, pinctrl-device.yaml]
properties: properties:
reg: reg: