diff options
Diffstat (limited to 'drivers/net/phy/mdio-mux-gpio.c')
-rw-r--r-- | drivers/net/phy/mdio-mux-gpio.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/net/phy/mdio-mux-gpio.c b/drivers/net/phy/mdio-mux-gpio.c deleted file mode 100644 index 10a758fdc9e6..000000000000 --- a/drivers/net/phy/mdio-mux-gpio.c +++ /dev/null @@ -1,98 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2011, 2012 Cavium, Inc. - */ - -#include <linux/platform_device.h> -#include <linux/device.h> -#include <linux/of_mdio.h> -#include <linux/module.h> -#include <linux/phy.h> -#include <linux/mdio-mux.h> -#include <linux/gpio/consumer.h> - -#define DRV_VERSION "1.1" -#define DRV_DESCRIPTION "GPIO controlled MDIO bus multiplexer driver" - -struct mdio_mux_gpio_state { - struct gpio_descs *gpios; - void *mux_handle; -}; - -static int mdio_mux_gpio_switch_fn(int current_child, int desired_child, - void *data) -{ - struct mdio_mux_gpio_state *s = data; - DECLARE_BITMAP(values, BITS_PER_TYPE(desired_child)); - - if (current_child == desired_child) - return 0; - - values[0] = desired_child; - - gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc, - s->gpios->info, values); - - return 0; -} - -static int mdio_mux_gpio_probe(struct platform_device *pdev) -{ - struct mdio_mux_gpio_state *s; - struct gpio_descs *gpios; - int r; - - gpios = devm_gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW); - if (IS_ERR(gpios)) - return PTR_ERR(gpios); - - s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL); - if (!s) - return -ENOMEM; - - s->gpios = gpios; - - r = mdio_mux_init(&pdev->dev, pdev->dev.of_node, - mdio_mux_gpio_switch_fn, &s->mux_handle, s, NULL); - - if (r != 0) - return r; - - pdev->dev.platform_data = s; - return 0; -} - -static int mdio_mux_gpio_remove(struct platform_device *pdev) -{ - struct mdio_mux_gpio_state *s = dev_get_platdata(&pdev->dev); - mdio_mux_uninit(s->mux_handle); - return 0; -} - -static const struct of_device_id mdio_mux_gpio_match[] = { - { - .compatible = "mdio-mux-gpio", - }, - { - /* Legacy compatible property. */ - .compatible = "cavium,mdio-mux-sn74cbtlv3253", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, mdio_mux_gpio_match); - -static struct platform_driver mdio_mux_gpio_driver = { - .driver = { - .name = "mdio-mux-gpio", - .of_match_table = mdio_mux_gpio_match, - }, - .probe = mdio_mux_gpio_probe, - .remove = mdio_mux_gpio_remove, -}; - -module_platform_driver(mdio_mux_gpio_driver); - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("David Daney"); -MODULE_LICENSE("GPL v2"); |