linux-kernel - [PATCH v2 4/4] ARM: dts: rockchip: Add quirk for resetting rk3288's dwc2 host on wakeup

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Message-Id: <20190416215351.242246-5-dianders@chromium.org>
Date:   Tue, 16 Apr 2019 14:53:51 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Minas Harutyunyan <hminas@...opsys.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>
Cc:     amstan@...omium.org, linux-rockchip@...ts.infradead.org,
        linux-usb@...r.kernel.org, Randy Li <ayaka@...lik.info>,
        mka@...omium.org, ryandcase@...omium.org, jwerner@...omium.org,
        Elaine Zhang <zhangqing@...k-chips.com>,
        Douglas Anderson <dianders@...omium.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 4/4] ARM: dts: rockchip: Add quirk for resetting rk3288's dwc2 host on wakeup

The "host" USB port on rk3288 has a hardware errata where we've got to
assert a PHY reset whenever we see a remote wakeup.  Add that quirk
property to the device tree.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
Reviewed-by: Matthias Kaehlcke <mka@...omium.org>
---

Changes in v2: None

 arch/arm/boot/dts/rk3288.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 7e70ecf2b95a..aa017abf4f42 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -621,6 +621,7 @@
 		dr_mode = "host";
 		phys = <&usbphy2>;
 		phy-names = "usb2-phy";
+		snps,reset-phy-on-wake;
 		status = "disabled";
 	};
 
-- 
2.21.0.593.g511ec345e18-goog