drivers: i2c_imx: add pin control support
Add pin control support to i2c_imx driver.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
diff --git a/drivers/i2c/i2c_imx.c b/drivers/i2c/i2c_imx.c
index 8640a33..457bd25 100644
--- a/drivers/i2c/i2c_imx.c
+++ b/drivers/i2c/i2c_imx.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2018 Diego Sueiro, <diego.sueiro@gmail.com>
+ * Copyright 2022 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -11,6 +12,7 @@
#include <soc.h>
#include <i2c_imx.h>
#include <zephyr/sys/util.h>
+#include <zephyr/drivers/pinctrl.h>
#include <zephyr/logging/log.h>
LOG_MODULE_REGISTER(i2c_imx);
@@ -24,6 +26,7 @@
I2C_Type *base;
void (*irq_config_func)(const struct device *dev);
uint32_t bitrate;
+ const struct pinctrl_dev_config *pincfg;
};
struct i2c_master_transfer {
@@ -339,6 +342,11 @@
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);
error = i2c_imx_configure(dev, I2C_MODE_MASTER | bitrate_cfg);
@@ -357,12 +365,14 @@
};
#define I2C_IMX_INIT(n) \
+ PINCTRL_DT_INST_DEFINE(n); \
static void i2c_imx_config_func_##n(const struct device *dev); \
\
static const struct i2c_imx_config i2c_imx_config_##n = { \
.base = (I2C_Type *)DT_INST_REG_ADDR(n), \
.irq_config_func = i2c_imx_config_func_##n, \
.bitrate = DT_INST_PROP(n, clock_frequency), \
+ .pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
}; \
\
static struct i2c_imx_data i2c_imx_data_##n; \
diff --git a/dts/bindings/i2c/fsl,imx21-i2c.yaml b/dts/bindings/i2c/fsl,imx21-i2c.yaml
index e164806..09f92b5 100644
--- a/dts/bindings/i2c/fsl,imx21-i2c.yaml
+++ b/dts/bindings/i2c/fsl,imx21-i2c.yaml
@@ -5,7 +5,7 @@
compatible: "fsl,imx21-i2c"
-include: i2c-controller.yaml
+include: [i2c-controller.yaml, pinctrl-device.yaml]
properties:
reg:
