Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752624AbbHCBP1 (ORCPT ); Sun, 2 Aug 2015 21:15:27 -0400 Received: from mail-pd0-f180.google.com ([209.85.192.180]:33601 "EHLO mail-pd0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752597AbbHCBPW (ORCPT ); Sun, 2 Aug 2015 21:15:22 -0400 From: Leo Yan To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Michael Turquette , Stephen Boyd , Wei Xu , Haojian Zhuang , Bintian Wang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Guodong Xu , Jian Zhang , Zhenwei Wang , Haoju Mo , Dan Zhao , sunzhaosheng@hisilicon.com, victor.lixin@hisilicon.com Cc: Leo Yan Subject: [PATCH v3 3/5] dt-bindings: clk: Hi6220: Document stub clock driver Date: Mon, 3 Aug 2015 09:13:36 +0800 Message-Id: <1438564418-15948-4-git-send-email-leo.yan@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1438564418-15948-1-git-send-email-leo.yan@linaro.org> References: <1438564418-15948-1-git-send-email-leo.yan@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1905 Lines: 58 Document the new compatible for stub clock driver which is used for CPU and DDR's dynamic frequency scaling. Signed-off-by: Leo Yan --- .../devicetree/bindings/clock/hi6220-clock.txt | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt index 259e30a..e4d5fea 100644 --- a/Documentation/devicetree/bindings/clock/hi6220-clock.txt +++ b/Documentation/devicetree/bindings/clock/hi6220-clock.txt @@ -15,19 +15,36 @@ Required Properties: - "hisilicon,hi6220-sysctrl" - "hisilicon,hi6220-mediactrl" - "hisilicon,hi6220-pmctrl" + - "hisilicon,hi6220-stub-clk" - reg: physical base address of the controller and length of memory mapped region. - #clock-cells: should be 1. -For example: +Optional Properties: + +- hisilicon,hi6220-clk-sram: phandle to the syscon managing the SoC internal sram; + the driver need use the sram to pass parameters for frequency change. + +- mboxes: use the label reference for the mailbox as the first parameter, the + second parameter is the channel number. + +Example 1: sys_ctrl: sys_ctrl@f7030000 { compatible = "hisilicon,hi6220-sysctrl", "syscon"; reg = <0x0 0xf7030000 0x0 0x2000>; #clock-cells = <1>; }; +Example 2: + stub_clock: stub_clock { + compatible = "hisilicon,hi6220-stub-clk"; + hisilicon,hi6220-clk-sram = <&sram>; + #clock-cells = <1>; + mboxes = <&mailbox 1>; + }; + Each clock is assigned an identifier and client nodes use this identifier to specify the clock which they consume. -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/