linux-kernel - [PATCH 4.19 039/639] usb: dwc3: add EXTCON dependency for qcom

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Date:   Fri, 24 Jan 2020 10:23:29 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 039/639] usb: dwc3: add EXTCON dependency for qcom

From: Arnd Bergmann <arnd@...db.de>

[ Upstream commit 3def4031b3e3fbb524cbd01555b057a6cef0d5e6 ]

Like the omap back-end, we get a link error with CONFIG_EXTCON=m
when building the qcom back-end into the kernel:

drivers/usb/dwc3/dwc3-qcom.o: In function `dwc3_qcom_probe':
dwc3-qcom.c:(.text+0x13dc): undefined reference to `extcon_get_edev_by_phandle'
dwc3-qcom.c:(.text+0x1b18): undefined reference to `devm_extcon_register_notifier'
dwc3-qcom.c:(.text+0x1b9c): undefined reference to `extcon_get_state'

Do the same thing as OMAP and add an explicit dependency on
EXTCON.

Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Felipe Balbi <felipe.balbi@...ux.intel.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/dwc3/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 518ead12458d0..1a0404fda596b 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -113,7 +113,7 @@ config USB_DWC3_ST
 
 config USB_DWC3_QCOM
 	tristate "Qualcomm Platform"
-	depends on ARCH_QCOM || COMPILE_TEST
+	depends on EXTCON && (ARCH_QCOM || COMPILE_TEST)
 	depends on OF
 	default USB_DWC3
 	help
-- 
2.20.1