From nobody Mon Sep 15 06:12:59 2025 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 C8138C3DA78 for ; Fri, 13 Jan 2023 17:45:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229893AbjAMRp3 (ORCPT ); Fri, 13 Jan 2023 12:45:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229568AbjAMRos (ORCPT ); Fri, 13 Jan 2023 12:44:48 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3D6988A38 for ; Fri, 13 Jan 2023 09:32:22 -0800 (PST) Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1pGNua-0002gm-TM; Fri, 13 Jan 2023 18:32:16 +0100 From: Bastian Krause Date: Fri, 13 Jan 2023 18:32:09 +0100 Subject: [PATCH 1/2] dt-bindings: reset: imx-src: add syscon and simple-mfd compatibles MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230113-syscon-child-mfd-v1-1-0dd31b7de373@pengutronix.de> References: <20230113-syscon-child-mfd-v1-0-0dd31b7de373@pengutronix.de> In-Reply-To: <20230113-syscon-child-mfd-v1-0-0dd31b7de373@pengutronix.de> To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ahmad Fatoum , Bastian Krause X-Mailer: b4 0.11.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::ac X-SA-Exim-Mail-From: bst@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This allows passing the reboot mode from the OS to the bootloader via the syscon-reboot-mode binding. Add a "simple-mfd" to support probing such a child node. The actual reboot mode node could then be defined in a board device-tree or fixed up by the bootloader. Suggested-by: Ahmad Fatoum Signed-off-by: Bastian Krause --- Documentation/devicetree/bindings/reset/fsl,imx-src.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml b/Doc= umentation/devicetree/bindings/reset/fsl,imx-src.yaml index b11ac533f914c..9ec734e14e9f5 100644 --- a/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml +++ b/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml @@ -38,6 +38,8 @@ properties: - items: - const: "fsl,imx6q-src" - const: "fsl,imx51-src" + - const: "syscon" + - const: "simple-mfd" - items: - const: "fsl,imx6sx-src" - const: "fsl,imx51-src" --=20 2.30.2 From nobody Mon Sep 15 06:12:59 2025 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 05DCCC3DA78 for ; Fri, 13 Jan 2023 17:45:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230354AbjAMRpQ (ORCPT ); Fri, 13 Jan 2023 12:45:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229924AbjAMRoq (ORCPT ); Fri, 13 Jan 2023 12:44:46 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6909487F26 for ; Fri, 13 Jan 2023 09:32:22 -0800 (PST) Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1pGNub-0002gm-DC; Fri, 13 Jan 2023 18:32:17 +0100 From: Bastian Krause Date: Fri, 13 Jan 2023 18:32:10 +0100 Subject: [PATCH 2/2] ARM: dts: imx6qdl: support child mfd cells for the reset controller MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20230113-syscon-child-mfd-v1-2-0dd31b7de373@pengutronix.de> References: <20230113-syscon-child-mfd-v1-0-0dd31b7de373@pengutronix.de> In-Reply-To: <20230113-syscon-child-mfd-v1-0-0dd31b7de373@pengutronix.de> To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ahmad Fatoum , Bastian Krause X-Mailer: b4 0.11.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::ac X-SA-Exim-Mail-From: bst@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The actual syscon-reboot-mode child node can be added by a board device-tree or fixed up by the bootloader. For the child node to be probed, the compatible needs to include simple-mfd. The binding now specifies this, so have the SoC dtsi adhere to it. Suggested-by: Ahmad Fatoum Signed-off-by: Bastian Krause --- arch/arm/boot/dts/imx6qdl.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index ff1e0173b39be..b16be39458aa6 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -865,7 +865,8 @@ epit2: epit@20d4000 { /* EPIT2 */ }; =20 src: reset-controller@20d8000 { - compatible =3D "fsl,imx6q-src", "fsl,imx51-src"; + compatible =3D "fsl,imx6q-src", "fsl,imx51-src", + "syscon", "simple-mfd"; reg =3D <0x020d8000 0x4000>; interrupts =3D <0 91 IRQ_TYPE_LEVEL_HIGH>, <0 96 IRQ_TYPE_LEVEL_HIGH>; --=20 2.30.2