linux-kernel - [PATCH] usb: typec: fusb302: Fix an undefined reference to 'extcon_get

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Date:   Thu, 12 Dec 2019 15:34:23 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <linux@...ck-us.net>, <heikki.krogerus@...ux.intel.com>,
        <gregkh@...uxfoundation.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <zhongjiang@...wei.com>
Subject: [PATCH] usb: typec: fusb302: Fix an undefined reference to 'extcon_get_state'

Fixes the following compile error:

drivers/usb/typec/tcpm/fusb302.o: In function `tcpm_get_current_limit':
fusb302.c:(.text+0x3ee): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x422): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x450): undefined reference to `extcon_get_state'
fusb302.c:(.text+0x48c): undefined reference to `extcon_get_state'
drivers/usb/typec/tcpm/fusb302.o: In function `fusb302_probe':
fusb302.c:(.text+0x980): undefined reference to `extcon_get_extcon_dev'
make: *** [vmlinux] Error 1

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/usb/typec/tcpm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/typec/tcpm/Kconfig b/drivers/usb/typec/tcpm/Kconfig
index 72481bb..a81ea9f 100644
--- a/drivers/usb/typec/tcpm/Kconfig
+++ b/drivers/usb/typec/tcpm/Kconfig
@@ -32,6 +32,7 @@ endif # TYPEC_TCPCI
 config TYPEC_FUSB302
 	tristate "Fairchild FUSB302 Type-C chip driver"
 	depends on I2C
+	depends on EXTCON
 	help
 	  The Fairchild FUSB302 Type-C chip driver that works with
 	  Type-C Port Controller Manager to provide USB PD and USB
-- 
1.7.12.4