Release 4.11 drivers/net/phy/mdio-mux-gpio.c
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* 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;
int values[s->gpios->ndescs];
unsigned int n;
if (current_child == desired_child)
return 0;
for (n = 0; n < s->gpios->ndescs; n++)
values[n] = (desired_child >> n) & 1;
gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc,
values);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Daney | 56 | 58.33% | 1 | 25.00% |
| Rojhalat Ibrahim | 40 | 41.67% | 3 | 75.00% |
| Total | 96 | 100.00% | 4 | 100.00% |
static int mdio_mux_gpio_probe(struct platform_device *pdev)
{
struct mdio_mux_gpio_state *s;
int r;
s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL);
if (!s)
return -ENOMEM;
s->gpios = gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW);
if (IS_ERR(s->gpios))
return PTR_ERR(s->gpios);
r = mdio_mux_init(&pdev->dev,
mdio_mux_gpio_switch_fn, &s->mux_handle, s, NULL);
if (r != 0) {
gpiod_put_array(s->gpios);
return r;
}
pdev->dev.platform_data = s;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Daney | 96 | 74.42% | 1 | 25.00% |
| Rojhalat Ibrahim | 31 | 24.03% | 2 | 50.00% |
| Pramod Kumar | 2 | 1.55% | 1 | 25.00% |
| Total | 129 | 100.00% | 4 | 100.00% |
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);
gpiod_put_array(s->gpios);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Daney | 30 | 73.17% | 1 | 25.00% |
| Rojhalat Ibrahim | 7 | 17.07% | 2 | 50.00% |
| Jingoo Han | 4 | 9.76% | 1 | 25.00% |
| Total | 41 | 100.00% | 4 | 100.00% |
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");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Daney | 309 | 77.25% | 1 | 14.29% |
| Rojhalat Ibrahim | 84 | 21.00% | 3 | 42.86% |
| Jingoo Han | 4 | 1.00% | 1 | 14.29% |
| Pramod Kumar | 2 | 0.50% | 1 | 14.29% |
| Fabian Frederick | 1 | 0.25% | 1 | 14.29% |
| Total | 400 | 100.00% | 7 | 100.00% |
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