linux-kernel - [PATCH] usb: phy: add USB

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Message-Id: <20160906125516.1551565-1-arnd@arndb.de>
Date:   Tue,  6 Sep 2016 14:54:46 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Kishon Vijay Abraham I <kishon@...com>
Cc:     Hans de Goede <hdegoede@...hat.com>, Arnd Bergmann <arnd@...db.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] usb: phy: add USB_SUPPORT dependency

The driver now calls of_usb_get_dr_mode_by_phy, which is part of the
USB core layer, and it fails to build when that is not provided:

drivers/phy/phy-sun4i-usb.o: In function `sun4i_usb_phy_probe':
phy-sun4i-usb.c:(.text.sun4i_usb_phy_probe+0x140): undefined reference to `of_usb_get_dr_mode_by_phy'

We already have a couple of other PHY drivers with a dependency
on USB_SUPPORT, so that seems to be the easiest fix here.

An alternative would be to adjust the #ifdef in include/linux/usb/of.h
to also check for CONFIG_USB_SUPPORT.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: b33ecca87df9 ("phy-sun4i-usb: Add support for peripheral-only mode")
---
 drivers/phy/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index c42ddf3c8ed8..985dff8558e5 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -260,6 +260,7 @@ config PHY_SUN4I_USB
 	depends on RESET_CONTROLLER
 	depends on EXTCON
 	depends on POWER_SUPPLY
+	depends on USB_SUPPORT
 	select GENERIC_PHY
 	help
 	  Enable this to support the transceiver that is part of Allwinner
-- 
2.9.0