mirror of https://gitee.com/openkylin/linux.git
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Common CPM GPIO wrapper for the CPM GPIO ports
|
||
|
|
*
|
||
|
|
* Author: Christophe Leroy <christophe.leroy@c-s.fr>
|
||
|
|
*
|
||
|
|
* Copyright 2017 CS Systemes d'Information.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/of_device.h>
|
||
|
|
|
||
|
|
#include <asm/cpm.h>
|
||
|
|
#ifdef CONFIG_8xx_GPIO
|
||
|
|
#include <asm/cpm1.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int cpm_gpio_probe(struct platform_device *ofdev)
|
||
|
|
{
|
||
|
|
struct device *dev = &ofdev->dev;
|
||
|
|
int (*gp_add)(struct device *dev) = of_device_get_match_data(dev);
|
||
|
|
|
||
|
|
if (!gp_add)
|
||
|
|
return -ENODEV;
|
||
|
|
|
||
|
|
return gp_add(dev);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct of_device_id cpm_gpio_match[] = {
|
||
|
|
#ifdef CONFIG_8xx_GPIO
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm1-pario-bank-a",
|
||
|
|
.data = cpm1_gpiochip_add16,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm1-pario-bank-b",
|
||
|
|
.data = cpm1_gpiochip_add32,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm1-pario-bank-c",
|
||
|
|
.data = cpm1_gpiochip_add16,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm1-pario-bank-d",
|
||
|
|
.data = cpm1_gpiochip_add16,
|
||
|
|
},
|
||
|
|
/* Port E uses CPM2 layout */
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm1-pario-bank-e",
|
||
|
|
.data = cpm2_gpiochip_add32,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
.compatible = "fsl,cpm2-pario-bank",
|
||
|
|
.data = cpm2_gpiochip_add32,
|
||
|
|
},
|
||
|
|
{},
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(of, cpm_gpio_match);
|
||
|
|
|
||
|
|
static struct platform_driver cpm_gpio_driver = {
|
||
|
|
.probe = cpm_gpio_probe,
|
||
|
|
.driver = {
|
||
|
|
.name = "cpm-gpio",
|
||
|
|
.of_match_table = cpm_gpio_match,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init cpm_gpio_init(void)
|
||
|
|
{
|
||
|
|
return platform_driver_register(&cpm_gpio_driver);
|
||
|
|
}
|
||
|
|
arch_initcall(cpm_gpio_init);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("Christophe Leroy <christophe.leroy@c-s.fr>");
|
||
|
|
MODULE_DESCRIPTION("Driver for CPM GPIO");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_ALIAS("platform:cpm-gpio");
|