Subject: linux-next: build failure after merge of the usb tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 16 Mar 2020 14:10:04 +1100

Hi all,

After merging the usb tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

drivers/phy/tegra/xusb.c: In function 'tegra_xusb_setup_usb_role_switch':
drivers/phy/tegra/xusb.c:641:10: error: initialization of 'int (*)(struct usb_role_switch *, enum usb_role)' from incompatible pointer type 'int (*)(struct device *, enum usb_role)' [-Werror=incompatible-pointer-types]
  641 |   .set = tegra_xusb_role_sw_set,
      |          ^~~~~~~~~~~~~~~~~~~~~~
drivers/phy/tegra/xusb.c:641:10: note: (near initialization for 'role_sx_desc.set')

Caused by commit

  bce3052f0c16 ("usb: roles: Provide the switch drivers handle to the switch in the API")

interacting with commit

  5a00c7c7604f ("phy: tegra: xusb: Add usb-role-switch support")

from the tegra tree.

I have added this merge fix patch (which may need more work):

From: Stephen Rothwell <[email-masked]>
Date: Mon, 16 Mar 2020 14:04:20 +1100
Subject: [PATCH] phy: tegra: fix up for set_role API change

Signed-off-by: Stephen Rothwell <[email-masked]>
---
 drivers/phy/tegra/xusb.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index d907f03bf282..25223c350e66 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -596,11 +596,12 @@ static void tegra_xusb_usb_phy_work(struct work_struct *work)
 	atomic_notifier_call_chain(&port->usb_phy.notifier, 0, &port->usb_phy);
 }
 
-static int tegra_xusb_role_sw_set(struct device *dev, enum usb_role role)
+static int tegra_xusb_role_sw_set(struct usb_role_switch *sw,
+				  enum usb_role role)
 {
-	struct tegra_xusb_port *port = dev_get_drvdata(dev);
+	struct tegra_xusb_port *port = usb_role_switch_get_drvdata(sw);
 
-	dev_dbg(dev, "%s(): role %s\n", __func__, usb_roles[role]);
+	dev_dbg(&port->dev, "%s(): role %s\n", __func__, usb_roles[role]);
 
 	schedule_work(&port->usb_phy_work);
 
-- 
2.25.0

-- 
Cheers,
Stephen Rothwell