From mboxrd@z Thu Jan 1 00:00:00 1970 From: chunfeng.yun@mediatek.com (Chunfeng Yun) Date: Mon, 6 Feb 2017 17:29:00 +0800 Subject: [PATCH v2 5/6] dt-bindings: mt8173-xhci: add reference clock In-Reply-To: <1486373341-4399-1-git-send-email-chunfeng.yun@mediatek.com> References: <1486373341-4399-1-git-send-email-chunfeng.yun@mediatek.com> Message-ID: <1486373341-4399-5-git-send-email-chunfeng.yun@mediatek.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Due to the reference clock comes from 26M oscillator directly on mt8173, and it is a fixed-clock in DTS which always turned on, we ignore it before. But on some platforms, it comes from PLL, and need be controlled, so here add it, no matter it is a fixed-clock or not. Signed-off-by: Chunfeng Yun Acked-by: Rob Herring --- .../devicetree/bindings/usb/mt8173-xhci.txt | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt index 2a930bd..ab8bb27 100644 --- a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt +++ b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt @@ -23,6 +23,7 @@ Required properties: entry in clock-names - clock-names : must contain "sys_ck": for clock of xHCI MAC + "ref_ck": for reference clock of xHCI MAC "wakeup_deb_p0": for USB wakeup debounce clock of port0 "wakeup_deb_p1": for USB wakeup debounce clock of port1 @@ -47,10 +48,10 @@ usb30: usb at 11270000 { reg-names = "mac", "ippc"; interrupts = ; power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>; - clocks = <&topckgen CLK_TOP_USB30_SEL>, + clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>, <&pericfg CLK_PERI_USB0>, <&pericfg CLK_PERI_USB1>; - clock-names = "sys_ck", + clock-names = "sys_ck", "ref_ck", "wakeup_deb_p0", "wakeup_deb_p1"; phys = <&phy_port0 PHY_TYPE_USB3>, @@ -82,6 +83,7 @@ Required properties: entry in clock-names - clock-names : must be "sys_ck": for clock of xHCI MAC + "ref_ck": for reference clock of xHCI MAC Optional properties: - vbus-supply : reference to the VBUS regulator; @@ -94,8 +96,8 @@ usb30: usb at 11270000 { reg-names = "mac"; interrupts = ; power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>; - clocks = <&topckgen CLK_TOP_USB30_SEL>; - clock-names = "sys_ck"; + clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>; + clock-names = "sys_ck", "ref_ck"; vusb33-supply = <&mt6397_vusb_reg>; usb3-lpm-capable; }; -- 1.7.9.5