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Wed, 2 Nov 2022 11:23:27 +0000 From: "Peng Fan (OSS)" To: andersson@kernel.org, mathieu.poirier@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-remoteproc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Peng Fan Subject: [PATCH V2 1/2] dt-bindings: remoteproc: imx_rproc: add fsl,startup-delay-ms Date: Wed, 2 Nov 2022 19:24:50 +0800 Message-Id: <20221102112451.128110-2-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20221102112451.128110-1-peng.fan@oss.nxp.com> References: <20221102112451.128110-1-peng.fan@oss.nxp.com> X-ClientProxiedBy: SI2PR06CA0003.apcprd06.prod.outlook.com (2603:1096:4:186::14) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|AS8PR04MB8344:EE_ X-MS-Office365-Filtering-Correlation-Id: b24cbe91-6c25-4308-e0b1-08dabcc4a96a X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Peng Fan --- .../devicetree/bindings/remoteproc/fsl,imx-rproc.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml index ad3b8d4ccd91..d99d3342ad52 100644 --- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml @@ -76,6 +76,10 @@ properties: This property is to specify the resource id of the remote processor in SoC which supports SCFW + fsl,startup-delay-ms: + $ref: "/schemas/types.yaml#/definitions/uint32" + description: Startup time that remote processor ready for communication + required: - compatible From patchwork Wed Nov 2 11:24:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 13027993 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 363FDC4332F for ; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 81b76d6f-1cc1-4600-63e3-08dabcc4ac1e X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Nov 2022 11:23:31.5988 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: u7K93L/9I9ZDJ+n4CeW2AaNR1qxg7yURDrGngDvWIPkZEN3O/KwzQcgpfIVwkn2RfC7Wi3aKwfriqDm2F9GCmQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8344 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org From: Peng Fan There is case that after remoteproc start remote processor[M4], the M4 runs slow and before M4 finish its own rpmsg framework initialization, linux sends out vring kick message, then M4 firmware drops the kick message. Some NXP released Cortex-M[x] images has such limitation that it requires linux sends out vring kick message after M4 firmware finish its rpmsg framework initialization. So add delay before linux send out vring kick message. Signed-off-by: Peng Fan --- drivers/remoteproc/imx_rproc.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index 9fc978e0393c..aa4e06f54f27 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -110,6 +111,7 @@ struct imx_rproc { u32 core_index; struct device **pd_dev; struct device_link **pd_dev_link; + u32 startup_delay; }; static const struct imx_rproc_att imx_rproc_att_imx93[] = { @@ -382,6 +384,9 @@ static int imx_rproc_start(struct rproc *rproc) if (ret) dev_err(dev, "Failed to enable remote core!\n"); + if (priv->startup_delay) + msleep_interruptible(priv->startup_delay); + return ret; } @@ -1087,6 +1092,10 @@ static int imx_rproc_probe(struct platform_device *pdev) if (rproc->state != RPROC_DETACHED) rproc->auto_boot = of_property_read_bool(np, "fsl,auto-boot"); + ret = of_property_read_u32(np, "fsl,startup-delay-ms", &priv->startup_delay); + if (ret) + priv->startup_delay = 0; + ret = rproc_add(rproc); if (ret) { dev_err(dev, "rproc_add failed\n");