Re: [PATCH v2 4/7] phy-sun4i-usb: Add support for phy_set_mode

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Hello.

On 08/15/2016 10:21 PM, Hans de Goede wrote:

Together with some musb sunxi glue changes this allows run-time dr_mode
switching support via the "mode" musb sysfs attribute.

Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
 drivers/phy/phy-sun4i-usb.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index fb2d4f3..d369081 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -427,6 +427,29 @@ static int sun4i_usb_phy_power_off(struct phy *_phy)
 	return 0;
 }

+static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode)
+{
+	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
+	struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
+
+	if (phy->index != 0)
+		return -EINVAL;
+
+	switch (mode) {
+	case PHY_MODE_USB_HOST:   data->dr_mode = USB_DR_MODE_HOST; break;
+	case PHY_MODE_USB_DEVICE: data->dr_mode = USB_DR_MODE_PERIPHERAL; break;
+	case PHY_MODE_USB_OTG:    data->dr_mode = USB_DR_MODE_OTG; break;
+	default:
+		return -EINVAL;
+	}
+
+	dev_info(&_phy->dev, "Changing dr_mode to %d\n", (int)data->dr_mode);
+	data->force_session_end = true;
+	queue_delayed_work(system_wq, &data->detect, 0);
+
+	return 0;
+}
+
 void sun4i_usb_phy_set_squelch_detect(struct phy *_phy, bool enabled)
 {
 	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
[...]

$ scripts/checkpatch.pl ~/patches/phy-sun4i-usb-Add-support-for-phy_set_mode.patch
ERROR: trailing statements should be on next line
#29: FILE: drivers/phy/phy-sun4i-usb.c:439:
+	case PHY_MODE_USB_HOST:   data->dr_mode = USB_DR_MODE_HOST; break;

ERROR: trailing statements should be on next line
#30: FILE: drivers/phy/phy-sun4i-usb.c:440:
+	case PHY_MODE_USB_DEVICE: data->dr_mode = USB_DR_MODE_PERIPHERAL; break;

ERROR: trailing statements should be on next line
#31: FILE: drivers/phy/phy-sun4i-usb.c:441:
+	case PHY_MODE_USB_OTG:    data->dr_mode = USB_DR_MODE_OTG; break;

total: 3 errors, 0 warnings, 36 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

/home/headless/patches/phy-sun4i-usb-Add-support-for-phy_set_mode.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

MBR, Sergei

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