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drivers: spi: 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 LPSPI interrupt handler.

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
This commit is contained in:
Mahesh Mahadevan 2023-08-01 15:03:41 -05:00 • committed by Anas Nashif
commit 8b7cff7d33
2 changed files with 26 additions and 2 deletions
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1
drivers/spi/Kconfig.mcux_lpspi
View file

@ -9,6 +9,7 @@ config SPI_MCUX_LPSPI
depends on DT_HAS_NXP_IMX_LPSPI_ENABLED
depends on CLOCK_CONTROL
select PINCTRL
select MFD if DT_HAS_NXP_LP_FLEXCOMM_ENABLED
help
Enable support for mcux spi driver.

25
drivers/spi/spi_mcux_lpspi.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2018, NXP
* Copyright 2018, 2024 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -10,6 +10,9 @@
#include <zephyr/drivers/spi.h>
#include <zephyr/drivers/clock_control.h>
#include <fsl_lpspi.h>
#if CONFIG_NXP_LP_FLEXCOMM
#include <zephyr/drivers/mfd/nxp_lp_flexcomm.h>
#endif
#include <zephyr/logging/log.h>
#include <zephyr/irq.h>
#ifdef CONFIG_SPI_MCUX_LPSPI_DMA
@ -35,6 +38,9 @@ LOG_MODULE_REGISTER(spi_mcux_lpspi, CONFIG_SPI_LOG_LEVEL);
struct spi_mcux_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);
@ -664,7 +670,16 @@ static int spi_mcux_init(const struct device *dev)
DEVICE_MMIO_NAMED_MAP(dev, reg_base, K_MEM_CACHE_NONE | K_MEM_DIRECT_MAP);
#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_LPSPI, spi_mcux_isr);
#else
/* Interrupt is managed by this driver */
config->irq_config_func(dev);
#endif
err = spi_context_cs_configure_all(&data->ctx);
if (err < 0) {
@ -913,6 +928,13 @@ static const struct spi_driver_api spi_mcux_driver_api = {
IF_ENABLED(DT_INST_IRQ_HAS_IDX(n, 0), \
(SPI_MCUX_LPSPI_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 SPI_MCUX_LPSPI_INIT(n) \
PINCTRL_DT_INST_DEFINE(n); \
COND_CODE_1(CONFIG_SPI_RTIO, (SPI_MCUX_RTIO_DEFINE(n)), ()); \
@ -921,6 +943,7 @@ static const struct spi_driver_api spi_mcux_driver_api = {
\
static const struct spi_mcux_config spi_mcux_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), \