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From: Randy Li <ayaka@soulik.info>
To: linux-usb@vger.kernel.org
Cc: John.Youn@synopsys.com, kishon@ti.com,
	felipe.balbi@linux.intel.com, mark.rutland@arm.com,
	devicetree@vger.kernel.org, heiko@sntech.de,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	robh+dt@kernel.org, randy.li@rock-chips.com,
	Randy Li <ayaka@soulik.info>
Subject: [PATCH v10 2/2] ARM: dts: rockchip: Point rk3288 dwc2 usb at the full PHY reset
Date: Sun, 11 Dec 2016 23:36:08 +0800	[thread overview]
Message-ID: <1481470568-32072-3-git-send-email-ayaka@soulik.info> (raw)
In-Reply-To: <1481470568-32072-1-git-send-email-ayaka@soulik.info>

The "host1" port (AKA the dwc2 port that isn't the OTG port) on rk3288
has a hardware errata that causes everything to get confused when we get
a remote wakeup.  We'll use the reset that's in the CRU to reset the
port when it's in a bad state.

Note that we add the reset to both dwc2 controllers even though only one
has the errata in case we find some other use for this reset that's
unrelated to the current hardware errata.  Only the host port gets the
quirk property, though.

Signed-off-by: Randy Li <ayaka@soulik.info>
---
 arch/arm/boot/dts/rk3288.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 4fad133..c779365 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -858,6 +858,8 @@
 				clocks = <&cru SCLK_OTGPHY0>;
 				clock-names = "phyclk";
 				#clock-cells = <0>;
+				resets = <&cru SRST_USBOTG_PHY>;
+				reset-names = "phy-reset";
 			};
 
 			usbphy1: usb-phy@334 {
@@ -874,6 +876,8 @@
 				clocks = <&cru SCLK_OTGPHY2>;
 				clock-names = "phyclk";
 				#clock-cells = <0>;
+				resets = <&cru SRST_USBHOST1_PHY>;
+				reset-names = "phy-reset";
 			};
 		};
 	};
-- 
2.7.4

      parent reply	other threads:[~2016-12-11 15:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-11 15:36 [PATCH v10 0/2] the fixup for the USB HOST1 at rk3288 platform Randy Li
2016-12-11 15:36 ` [PATCH v10 1/2] usb: dwc2: assert phy reset when waking up in " Randy Li
     [not found]   ` <1481470568-32072-2-git-send-email-ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>
2017-03-04  2:56     ` ayaka
2016-12-11 15:36 ` Randy Li [this message]

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