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usb: renesas_usbhs: add extcon notifier to set mode for non-otg channel 

This patch adds extcon notifier callback to set the mode of
host/peripheral by using extcon state (e.g phy-rcar-gen3-usb2) for
non-otg channel (e.g. R-Car D3).

[Fengguang Wu: fixed sparse warning]

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

usb: renesas_usbhs: usbhs_rcar3_notifier() can be static

Fixes: 3a7cce26122e ("usb: renesas_usbhs: add extcon notifier to set mode for non-otg channel")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Yoshihiro Shimoda 2017-12-13 15:47:00 +09:00 committed by Felipe Balbi
parent cd14247d5c
commit 8ada211d03
3 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/renesas_usbhs/common.c
View File

@ -581,6 +581,15 @@ static int usbhs_probe(struct platform_device *pdev)
break;
case USBHS_TYPE_RCAR_GEN3_WITH_PLL:
priv->pfunc = usbhs_rcar3_with_pll_ops;
if (!IS_ERR_OR_NULL(priv->edev)) {
priv->nb.notifier_call = priv->pfunc.notifier;
ret = devm_extcon_register_notifier(&pdev->dev,
priv->edev,
EXTCON_USB_HOST,
&priv->nb);
if (ret < 0)
dev_err(&pdev->dev, "no notifier registered\n");
}
break;
default:
if (!info->platform_callback.get_id) {

1
drivers/usb/renesas_usbhs/common.h
View File

@ -249,6 +249,7 @@ struct usbhs_priv {
struct platform_device *pdev;
struct extcon_dev *edev;
struct notifier_block nb;
spinlock_t lock;

11
drivers/usb/renesas_usbhs/rcar3.c
View File

@ -112,6 +112,16 @@ static int usbhs_rcar3_get_id(struct platform_device *pdev)
return USBHS_GADGET;
}
static int usbhs_rcar3_notifier(struct notifier_block *nb, unsigned long event,
void *data)
{
struct usbhs_priv *priv = container_of(nb, struct usbhs_priv, nb);
usbhs_rcar3_set_usbsel(priv, !!event);
return NOTIFY_DONE;
}
const struct renesas_usbhs_platform_callback usbhs_rcar3_ops = {
.power_ctrl = usbhs_rcar3_power_ctrl,
.get_id = usbhs_rcar3_get_id,
@ -120,4 +130,5 @@ const struct renesas_usbhs_platform_callback usbhs_rcar3_ops = {
const struct renesas_usbhs_platform_callback usbhs_rcar3_with_pll_ops = {
.power_ctrl = usbhs_rcar3_power_and_pll_ctrl,
.get_id = usbhs_rcar3_get_id,
.notifier = usbhs_rcar3_notifier,
};