linux-kernel - [PATCH 4.4 044/118] ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)

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Date:   Thu, 22 Sep 2016 19:29:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peter Griffin <peter.griffin@...aro.org>,
        Lee Jones <lee.jones@...aro.org>,
        Patrice Chotard <patrice.chotard@...com>
Subject: [PATCH 4.4 044/118] ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB)

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lee Jones <lee.jones@...aro.org>

commit 7e9d2850a8db4e0d85a20bb692198bf2cc4be3b7 upstream.

The STiH4{07,10} platform contains some interconnect clocks which are used
by various IPs.  If this clock isn't handled correctly by ST's EHCI/OHCI
drivers, their hub won't be found, the following error be shown and the
result will be non-working USB:

  [   97.221963] hub 2-1:1.0: hub_ext_port_status failed (err = -110)

Tested-by: Peter Griffin <peter.griffin@...aro.org>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Acked-by: Patrice Chotard <patrice.chotard@...com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/stih410.dtsi |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--- a/arch/arm/boot/dts/stih410.dtsi
+++ b/arch/arm/boot/dts/stih410.dtsi
@@ -41,7 +41,8 @@
 			compatible = "st,st-ohci-300x";
 			reg = <0x9a03c00 0x100>;
 			interrupts = <GIC_SPI 180 IRQ_TYPE_NONE>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -57,7 +58,8 @@
 			interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb0>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT0_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -71,7 +73,8 @@
 			compatible = "st,st-ohci-300x";
 			reg = <0x9a83c00 0x100>;
 			interrupts = <GIC_SPI 181 IRQ_TYPE_NONE>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
 			reset-names = "power", "softreset";
@@ -87,7 +90,8 @@
 			interrupts = <GIC_SPI 153 IRQ_TYPE_NONE>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb1>;
-			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
+			clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
+				 <&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
 			resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
 				 <&softreset STIH407_USB2_PORT1_SOFTRESET>;
 			reset-names = "power", "softreset";