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drivers: i2c_rtio: Use the NXP Flexcomm driver for interrupt handling

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The Low Power Flexcomm driver manages the interrupt handling
and provides an API to register interrupt callbacks.
Register the NXP LPI2C interrupt handler.

Applying dca6e64c93f26db254089f20225854bb1f8fe9b4 on RTIO-version.

Authored-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Signed-off-by: Luis Ubieda <luisf@croxel.com>
This commit is contained in:
Luis Ubieda 2025-04-08 14:56:12 -04:00 committed by Benjamin Cabé
parent 797772fc41
commit c7a00248a6
1 changed files with 22 additions and 0 deletions
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22
drivers/i2c/i2c_mcux_lpi2c_rtio.c
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@ -16,6 +16,9 @@
#include <zephyr/kernel.h>
#include <zephyr/irq.h>
#include <fsl_lpi2c.h>
#if CONFIG_NXP_LP_FLEXCOMM
#include <zephyr/drivers/mfd/nxp_lp_flexcomm.h>
#endif
#include <zephyr/drivers/pinctrl.h>
@ -40,6 +43,9 @@ LOG_MODULE_REGISTER(mcux_lpi2c);
struct mcux_lpi2c_config {
DEVICE_MMIO_NAMED_ROM(reg_base);
#ifdef CONFIG_NXP_LP_FLEXCOMM
const struct device *parent_dev;
#endif
const struct device *clock_dev;
clock_control_subsys_t clock_subsys;
void (*irq_config_func)(const struct device *dev);
@ -329,7 +335,15 @@ static int mcux_lpi2c_init(const struct device *dev)
return error;
}
#if CONFIG_NXP_LP_FLEXCOMM
/* When using LP Flexcomm driver, register the interrupt handler
* so we receive notification from the LP Flexcomm interrupt handler.
*/
nxp_lp_flexcomm_setirqhandler(config->parent_dev, dev,
LP_FLEXCOMM_PERIPH_LPI2C, mcux_lpi2c_isr);
#else
config->irq_config_func(dev);
#endif
i2c_rtio_init(data->ctx, dev);
@ -363,6 +377,13 @@ static DEVICE_API(i2c, mcux_lpi2c_driver_api) = {
IF_ENABLED(DT_INST_IRQ_HAS_IDX(n, 0), \
(I2C_MCUX_LPI2C_MODULE_IRQ_CONNECT(n)))
#ifdef CONFIG_NXP_LP_FLEXCOMM
#define PARENT_DEV(n) \
.parent_dev = DEVICE_DT_GET(DT_INST_PARENT(n)),
#else
#define PARENT_DEV(n)
#endif /* CONFIG_NXP_LP_FLEXCOMM */
#define I2C_MCUX_LPI2C_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
\
@ -370,6 +391,7 @@ static DEVICE_API(i2c, mcux_lpi2c_driver_api) = {
\
static const struct mcux_lpi2c_config mcux_lpi2c_config_##n = { \
DEVICE_MMIO_NAMED_ROM_INIT(reg_base, DT_DRV_INST(n)), \
PARENT_DEV(n) \
.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)), \
.clock_subsys = \
(clock_control_subsys_t)DT_INST_CLOCKS_CELL(n, name),\