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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Phil Elwell <phil@raspberrypi.com>
Subject: [PATCH 5.4 52/78] usb: dwc2: Fix build in periphal-only mode
Date:   Tue,  8 Jun 2021 20:27:21 +0200
Message-Id: <20210608175937.036827542@linuxfoundation.org>
In-Reply-To: <20210608175935.254388043@linuxfoundation.org>
References: <20210608175935.254388043@linuxfoundation.org>
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From: Phil Elwell <phil@raspberrypi.com>

In branches to which 24d209dba5a3 ("usb: dwc2: Fix hibernation between
host and device modes.") has been back-ported, the bus_suspended member
of struct dwc2_hsotg is only present in builds that support host-mode.
To avoid having to pull in several more non-Fix commits in order to
get it to compile, wrap the usage of the member in a macro conditional.

Fixes: 24d209dba5a3 ("usb: dwc2: Fix hibernation between host and device modes.")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/dwc2/core_intr.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -712,7 +712,11 @@ static inline void dwc_handle_gpwrdn_dis
 	dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
 
 	hsotg->hibernated = 0;
+
+#if IS_ENABLED(CONFIG_USB_DWC2_HOST) ||	\
+	IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
 	hsotg->bus_suspended = 0;
+#endif
 
 	if (gpwrdn & GPWRDN_IDSTS) {
 		hsotg->op_state = OTG_STATE_B_PERIPHERAL;