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usb: chipidea: introduce imx7d USB charger detection

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imx7d (and imx8mm, imx8mn) uses Samsung PHY and USB generic PHY driver.
The USB generic PHY driver is impossible to have a charger detection
for every user, so we implement USB charger detection routine at glue
layer. After the detection has finished, it will notify USB PHY
charger framework, and the uevents will be triggered.

Signed-off-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
This commit is contained in:
Jun Li
2020-01-23 14:35:58 +08:00
committed by Peter Chen
parent d755cdb1b9
commit 746f316b75
3 changed files with 259 additions and 1 deletions
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13
drivers/usb/chipidea/ci_hdrc_imx.c
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@@ -271,6 +271,7 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
struct device *dev = ci->dev->parent;
struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
int ret = 0;
struct imx_usbmisc_data *mdata = data->usbmisc_data;
switch (event) {
case CI_HDRC_IMX_HSIC_ACTIVE_EVENT:
@@ -284,11 +285,19 @@ static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event)
}
break;
case CI_HDRC_IMX_HSIC_SUSPEND_EVENT:
ret = imx_usbmisc_hsic_set_connect(data->usbmisc_data);
ret = imx_usbmisc_hsic_set_connect(mdata);
if (ret)
dev_err(dev,
"hsic_set_connect failed, err=%d\n", ret);
break;
case CI_HDRC_CONTROLLER_VBUS_EVENT:
if (ci->vbus_active)
ret = imx_usbmisc_charger_detection(mdata, true);
else
ret = imx_usbmisc_charger_detection(mdata, false);
if (ci->usb_phy)
schedule_work(&ci->usb_phy->chg_work);
break;
default:
break;
}
@@ -415,6 +424,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
}
pdata.usb_phy = data->phy;
if (data->usbmisc_data)
data->usbmisc_data->usb_phy = data->phy;
if ((of_device_is_compatible(np, "fsl,imx53-usb") ||
of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy &&