linux-kernel - [PATCH] usb: typec: intel_pmc_mux: select CONFIG_USB

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Date:   Sat,  5 Aug 2023 11:51:53 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rajat Khandelwal <rajat.khandelwal@...ux.intel.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: typec: intel_pmc_mux: select CONFIG_USB_COMMON

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

It is possible to configure the typec drivers to be built-in while the
actual USB host and device support is in loadable modules, but that now
causes a link failure because the usb debugfs support is then not
available to built-in code.

x86_64-linux-ld: drivers/usb/typec/mux/intel_pmc_mux.o: in function `pmc_usb_init':
intel_pmc_mux.c:(.init.text+0x3): undefined reference to `usb_debug_root'

Select CONFIG_USB_COMMON to get it to build again, as we do for
other drivers that require the core usb functionality.

Fixes: 0a453dc9f2602 ("usb: typec: intel_pmc_mux: Expose IOM port status to debugfs")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/usb/typec/mux/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/typec/mux/Kconfig b/drivers/usb/typec/mux/Kconfig
index 784b9d8107e9b..65da61150ba78 100644
--- a/drivers/usb/typec/mux/Kconfig
+++ b/drivers/usb/typec/mux/Kconfig
@@ -29,6 +29,7 @@ config TYPEC_MUX_INTEL_PMC
 	tristate "Intel PMC mux control"
 	depends on ACPI
 	depends on INTEL_SCU_IPC
+	select USB_COMMON
 	select USB_ROLE_SWITCH
 	help
 	  Driver for USB muxes controlled by Intel PMC FW. Intel PMC FW can
-- 
2.39.2