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From: Randy Li <ayaka@soulik.info>
To: linux-usb@vger.kernel.org
Cc: felipe.balbi@linux.intel.com, John.Youn@synopsys.com,
	mark.rutland@arm.com, devicetree@vger.kernel.org,
	heiko@sntech.de, gregkh@linuxfoundation.org,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	robh+dt@kernel.org, kishon@ti.com, randy.li@rock-chips.com,
	Randy Li <ayaka@soulik.info>
Subject: [PATCH v7 4/4] ARM: dts: rockchip: Point rk3288 dwc2 usb at the full PHY reset
Date: Sun,  4 Sep 2016 05:55:29 +0800	[thread overview]
Message-ID: <1472939729-15187-5-git-send-email-ayaka@soulik.info> (raw)
In-Reply-To: <1472939729-15187-1-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 17ec2e2..34de803 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -857,6 +857,8 @@
 				clocks = <&cru SCLK_OTGPHY0>;
 				clock-names = "phyclk";
 				#clock-cells = <0>;
+				resets = <&cru SRST_USBOTG_PHY>;
+				reset-names = "phy-reset";
 			};
 
 			usbphy1: usb-phy@334 {
@@ -873,6 +875,8 @@
 				clocks = <&cru SCLK_OTGPHY2>;
 				clock-names = "phyclk";
 				#clock-cells = <0>;
+				resets = <&cru SRST_USBHOST1_PHY>;
+				reset-names = "phy-reset";
 			};
 		};
 	};
-- 
2.7.4

WARNING: multiple messages have this Message-ID
From: Randy Li <ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>
To: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org,
	felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	Randy Li <ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>,
	randy.li-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	John.Youn-HKixBCOQz3hWk0Htik3J/w@public.gmane.org,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	kishon-l0cyMroinI0@public.gmane.org
Subject: [PATCH v7 4/4] ARM: dts: rockchip: Point rk3288 dwc2 usb at the full PHY reset
Date: Sun,  4 Sep 2016 05:55:29 +0800	[thread overview]
Message-ID: <1472939729-15187-5-git-send-email-ayaka@soulik.info> (raw)
In-Reply-To: <1472939729-15187-1-git-send-email-ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>

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-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>
---
 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 17ec2e2..34de803 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -857,6 +857,8 @@
 				clocks = <&cru SCLK_OTGPHY0>;
 				clock-names = "phyclk";
 				#clock-cells = <0>;
+				resets = <&cru SRST_USBOTG_PHY>;
+				reset-names = "phy-reset";
 			};
 
 			usbphy1: usb-phy@334 {
@@ -873,6 +875,8 @@
 				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:[~2016-09-03 21:57 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-03 21:55 [PATCH v7 0/4] the fix for the USB HOST1 at rk3288 platform Randy Li
2016-09-03 21:55 ` Randy Li
2016-09-03 21:55 ` [PATCH v7 1/4] phy: Add reset callback Randy Li
2016-09-03 21:55   ` Randy Li
2016-09-03 21:55 ` [PATCH v7 2/4] phy: rockchip-usb: use rockchip_usb_phy_reset to reset phy during wakeup Randy Li
2016-09-03 21:55   ` Randy Li
2016-09-03 21:55 ` [PATCH v7 3/4] usb: dwc2: assert phy reset when waking up in rk3288 platform Randy Li
2016-09-03 21:55   ` Randy Li
2016-09-03 22:08   ` Sergei Shtylyov
2016-09-03 22:08     ` Sergei Shtylyov
2016-09-05 13:35   ` David Laight
2016-09-05 13:35     ` David Laight
2016-09-05 23:38     ` Ayaka
2016-09-05 23:38       ` Ayaka
2016-09-06  5:14   ` Kishon Vijay Abraham I
2016-09-06  5:14     ` Kishon Vijay Abraham I
2016-09-06 18:54     ` John Youn
2016-09-06 18:54       ` John Youn
2016-09-07  1:19       ` Ayaka
2016-09-07  1:19         ` Ayaka
2016-09-07  2:02         ` John Youn
2016-09-07  2:02           ` John Youn
2016-09-03 21:55 ` Randy Li [this message]
2016-09-03 21:55   ` [PATCH v7 4/4] ARM: dts: rockchip: Point rk3288 dwc2 usb at the full PHY reset Randy Li

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