Release 4.11 drivers/usb/phy/phy-am335x.c
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/usb/otg.h>
#include <linux/usb/usb_phy_generic.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/usb/of.h>
#include "phy-am335x-control.h"
#include "phy-generic.h"
struct am335x_phy {
struct usb_phy_generic usb_phy_gen;
struct phy_control *phy_ctrl;
int id;
enum usb_dr_mode dr_mode;
};
static int am335x_init(struct usb_phy *phy)
{
struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 39 | 90.70% | 1 | 50.00% |
| Bin Liu | 4 | 9.30% | 1 | 50.00% |
| Total | 43 | 100.00% | 2 | 100.00% |
static void am335x_shutdown(struct usb_phy *phy)
{
struct am335x_phy *am_phy = dev_get_drvdata(phy->dev);
phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 36 | 90.00% | 1 | 50.00% |
| Bin Liu | 4 | 10.00% | 1 | 50.00% |
| Total | 40 | 100.00% | 2 | 100.00% |
static int am335x_phy_probe(struct platform_device *pdev)
{
struct am335x_phy *am_phy;
struct device *dev = &pdev->dev;
int ret;
am_phy = devm_kzalloc(dev, sizeof(*am_phy), GFP_KERNEL);
if (!am_phy)
return -ENOMEM;
am_phy->phy_ctrl = am335x_get_phy_control(dev);
if (!am_phy->phy_ctrl)
return -EPROBE_DEFER;
am_phy->id = of_alias_get_id(pdev->dev.of_node, "phy");
if (am_phy->id < 0) {
dev_err(&pdev->dev, "Missing PHY id: %d\n", am_phy->id);
return am_phy->id;
}
am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1);
ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
if (ret)
return ret;
ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
if (ret)
return ret;
am_phy->usb_phy_gen.phy.init = am335x_init;
am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;
platform_set_drvdata(pdev, am_phy);
device_init_wakeup(dev, true);
/*
* If we leave PHY wakeup enabled then AM33XX wakes up
* immediately from DS0. To avoid this we mark dev->power.can_wakeup
* to false. The same is checked in suspend routine to decide
* on whether to enable PHY wakeup or not.
* PHY wakeup works fine in standby mode, there by allowing us to
* handle remote wakeup, wakeup on disconnect and connect.
*/
device_set_wakeup_enable(dev, false);
phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 183 | 77.87% | 1 | 16.67% |
| George Cherian | 28 | 11.91% | 1 | 16.67% |
| Bin Liu | 17 | 7.23% | 1 | 16.67% |
| Hans de Goede | 3 | 1.28% | 1 | 16.67% |
| Mark Brown | 3 | 1.28% | 1 | 16.67% |
| Felipe Balbi | 1 | 0.43% | 1 | 16.67% |
| Total | 235 | 100.00% | 6 | 100.00% |
static int am335x_phy_remove(struct platform_device *pdev)
{
struct am335x_phy *am_phy = platform_get_drvdata(pdev);
usb_remove_phy(&am_phy->usb_phy_gen.phy);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
#ifdef CONFIG_PM_SLEEP
static int am335x_phy_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct am335x_phy *am_phy = platform_get_drvdata(pdev);
/*
* Enable phy wakeup only if dev->power.can_wakeup is true.
* Make sure to enable wakeup to support remote wakeup in
* standby mode ( same is not supported in OFF(DS0) mode).
* Enable it by doing
* echo enabled > /sys/bus/platform/devices/<usb-phy-id>/power/wakeup
*/
if (device_may_wakeup(dev))
phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true);
phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, false);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 66 | 91.67% | 1 | 33.33% |
| Bin Liu | 4 | 5.56% | 1 | 33.33% |
| George Cherian | 2 | 2.78% | 1 | 33.33% |
| Total | 72 | 100.00% | 3 | 100.00% |
static int am335x_phy_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct am335x_phy *am_phy = platform_get_drvdata(pdev);
phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, am_phy->dr_mode, true);
if (device_may_wakeup(dev))
phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 66 | 92.96% | 1 | 33.33% |
| Bin Liu | 4 | 5.63% | 1 | 33.33% |
| George Cherian | 1 | 1.41% | 1 | 33.33% |
| Total | 71 | 100.00% | 3 | 100.00% |
#endif
static SIMPLE_DEV_PM_OPS(am335x_pm_ops, am335x_phy_suspend, am335x_phy_resume);
static const struct of_device_id am335x_phy_ids[] = {
{ .compatible = "ti,am335x-usb-phy" },
{ }
};
MODULE_DEVICE_TABLE(of, am335x_phy_ids);
static struct platform_driver am335x_phy_driver = {
.probe = am335x_phy_probe,
.remove = am335x_phy_remove,
.driver = {
.name = "am335x-phy-driver",
.pm = &am335x_pm_ops,
.of_match_table = am335x_phy_ids,
},
};
module_platform_driver(am335x_phy_driver);
MODULE_LICENSE("GPL v2");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sebastian Andrzej Siewior | 546 | 85.31% | 2 | 18.18% |
| Bin Liu | 41 | 6.41% | 2 | 18.18% |
| George Cherian | 32 | 5.00% | 1 | 9.09% |
| Jingoo Han | 12 | 1.88% | 1 | 9.09% |
| Felipe Balbi | 3 | 0.47% | 3 | 27.27% |
| Hans de Goede | 3 | 0.47% | 1 | 9.09% |
| Mark Brown | 3 | 0.47% | 1 | 9.09% |
| Total | 640 | 100.00% | 11 | 100.00% |
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