From patchwork Mon May 27 07:03:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 10962179 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CC8B776 for ; Mon, 27 May 2019 07:01:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ACECB28AF4 for ; Mon, 27 May 2019 07:01:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9EFAD28AF6; Mon, 27 May 2019 07:01:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0693528AF4 for ; Mon, 27 May 2019 07:01:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726073AbfE0HBk (ORCPT ); Mon, 27 May 2019 03:01:40 -0400 Received: from inva021.nxp.com ([92.121.34.21]:49954 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725973AbfE0HBk (ORCPT ); Mon, 27 May 2019 03:01:40 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 4A8D4200AE1; Mon, 27 May 2019 09:01:37 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 1041B200ACF; Mon, 27 May 2019 09:01:30 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 590F1402FF; Mon, 27 May 2019 15:01:21 +0800 (SGT) From: Anson.Huang@nxp.com To: robh+dt@kernel.org, mark.rutland@arm.com, wim@linux-watchdog.org, linux@roeck-us.net, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, aisheng.dong@nxp.com, ulf.hansson@linaro.org, peng.fan@nxp.com, daniel.baluta@nxp.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH V4 RESEND 1/3] dt-bindings: watchdog: move i.MX system controller watchdog binding to SCU Date: Mon, 27 May 2019 15:03:15 +0800 Message-Id: <20190527070317.16904-1-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Anson Huang i.MX system controller watchdog depends on SCU driver to support interrupt function, so it needs to be subnode of SCU node in DT, binding doc should be moved to fsl,scu.txt as well. Signed-off-by: Anson Huang Reviewed-by: Rob Herring Reviewed-by: Guenter Roeck --- No changes, just rebase the patch to top of linux-next. --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 15 ++++++++++++++ .../bindings/watchdog/fsl-imx-sc-wdt.txt | 24 ---------------------- 2 files changed, 15 insertions(+), 24 deletions(-) delete mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx-sc-wdt.txt diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index f378922..a575e42 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -145,6 +145,16 @@ Optional Child nodes: - Data cells of ocotp: Detailed bindings are described in bindings/nvmem/nvmem.txt +Watchdog bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: should be: + "fsl,imx8qxp-sc-wdt" + followed by "fsl,imx-sc-wdt"; +Optional properties: +- timeout-sec: contains the watchdog timeout in seconds. + Example (imx8qxp): ------------- aliases { @@ -207,6 +217,11 @@ firmware { rtc: rtc { compatible = "fsl,imx8qxp-sc-rtc"; }; + + watchdog { + compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; + timeout-sec = <60>; + }; }; }; diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-sc-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx-sc-wdt.txt deleted file mode 100644 index 02b87e9..0000000 --- a/Documentation/devicetree/bindings/watchdog/fsl-imx-sc-wdt.txt +++ /dev/null @@ -1,24 +0,0 @@ -* Freescale i.MX System Controller Watchdog - -i.MX system controller watchdog is for i.MX SoCs with system controller inside, -the watchdog is managed by system controller, users can ONLY communicate with -system controller from secure mode for watchdog operations, so Linux i.MX system -controller watchdog driver will call ARM SMC API and trap into ARM-Trusted-Firmware -for watchdog operations, ARM-Trusted-Firmware is running at secure EL3 mode and -it will request system controller to execute the watchdog operation passed from -Linux kernel. - -Required properties: -- compatible: Should be : - "fsl,imx8qxp-sc-wdt" - followed by "fsl,imx-sc-wdt"; - -Optional properties: -- timeout-sec : Contains the watchdog timeout in seconds. - -Examples: - -watchdog { - compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; - timeout-sec = <60>; -};