From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- drivers/gpio/gpio-clps711x.c | 88 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/gpio/gpio-clps711x.c (limited to 'drivers/gpio/gpio-clps711x.c') diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c new file mode 100644 index 0000000000..d69a24dd48 --- /dev/null +++ b/drivers/gpio/gpio-clps711x.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * CLPS711X GPIO driver + * + * Copyright (C) 2012,2013 Alexander Shiyan + */ + +#include +#include +#include +#include + +static int clps711x_gpio_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + void __iomem *dat, *dir; + struct gpio_chip *gc; + int err, id; + + if (!np) + return -ENODEV; + + id = of_alias_get_id(np, "gpio"); + if ((id < 0) || (id > 4)) + return -ENODEV; + + gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL); + if (!gc) + return -ENOMEM; + + dat = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dat)) + return PTR_ERR(dat); + + dir = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(dir)) + return PTR_ERR(dir); + + switch (id) { + case 3: + /* PORTD is inverted logic for direction register */ + err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL, + NULL, dir, 0); + break; + default: + err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL, + dir, NULL, 0); + break; + } + + if (err) + return err; + + switch (id) { + case 4: + /* PORTE is 3 lines only */ + gc->ngpio = 3; + break; + default: + break; + } + + gc->base = -1; + gc->owner = THIS_MODULE; + platform_set_drvdata(pdev, gc); + + return devm_gpiochip_add_data(&pdev->dev, gc, NULL); +} + +static const struct of_device_id clps711x_gpio_ids[] = { + { .compatible = "cirrus,ep7209-gpio" }, + { } +}; +MODULE_DEVICE_TABLE(of, clps711x_gpio_ids); + +static struct platform_driver clps711x_gpio_driver = { + .driver = { + .name = "clps711x-gpio", + .of_match_table = clps711x_gpio_ids, + }, + .probe = clps711x_gpio_probe, +}; +module_platform_driver(clps711x_gpio_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Alexander Shiyan "); +MODULE_DESCRIPTION("CLPS711X GPIO driver"); +MODULE_ALIAS("platform:clps711x-gpio"); -- cgit v1.2.3