From patchwork Thu Jan 21 16:23:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 1429951 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=m+iNbUe1; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DM7Ch12jnz9sS8 for ; Fri, 22 Jan 2021 03:30:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387750AbhAUQ2g (ORCPT ); Thu, 21 Jan 2021 11:28:36 -0500 Received: from mail.kernel.org ([198.145.29.99]:58460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387804AbhAUQYM (ORCPT ); Thu, 21 Jan 2021 11:24:12 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id BCBDD22B45; Thu, 21 Jan 2021 16:23:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611246212; bh=SGnWKlQo06sg8d+NDOQwaMUesF8OTKiZdb/fFObVA5M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m+iNbUe1iH56GlLK9RfZSVnhckUnp2JZRKs/tbqkhu1wk2ONnMIVExT3hVjT7EGth +cYgBB9941K1+gZEu3f9NRKFz0oBIzy5KJhlSIYVYvMzi8aPM099NvjW3luA0M3cAt SilMrNkke79EwXj8YwSci70gf4scZ0LPT6yAgk4hKtnYw0BbGFMGHGuyMzXCD/3Ncw MQVhraqL9eexYSUKD/SHpMs+PSUVyPJzNIBQH03dKy1SzDjUN/JkJ5S5WPFjivwEgJ NknIpZjTLibFgLQ6cOc8OzOt+icSCu9IjNzae72EdwmPulWmz05WcpIWfYQcXmbcrM rwRpF3s6cqxAA== Received: by wens.tw (Postfix, from userid 1000) id 94B265FBB9; Fri, 22 Jan 2021 00:23:28 +0800 (CST) From: Chen-Yu Tsai To: Shawn Lin , Lorenzo Pieralisi , Bjorn Helgaas , Heiko Stuebner Cc: Chen-Yu Tsai , Rob Herring , Robin Murphy , Johan Jonker , linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v4 3/4] arm64: dts: rockchip: nanopi4: Move ep-gpios property to nanopc-t4 Date: Fri, 22 Jan 2021 00:23:20 +0800 Message-Id: <20210121162321.4538-4-wens@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210121162321.4538-1-wens@kernel.org> References: <20210121162321.4538-1-wens@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Chen-Yu Tsai Only the NanoPC T4 hs the PCIe reset pin routed to the SoC. For the NanoPi M4 family, no such signal is routed to the expansion header on the base board. As the schematics for the expansion board were not released, it is unclear how this is handled, but the likely answer is that the signal is always pulled high. Move the ep-gpios property from the common nanopi4.dtsi file to the board level nanopc-t4.dts file. This makes the nanopi-m4 lack ep-gpios, matching the board design. A companion patch "PCI: rockchip: make ep_gpio optional" for the Linux driver is required, as the driver currently requires the property to be present. Fixes: e7a095908227 ("arm64: dts: rockchip: Add devicetree for NanoPC-T4") Reviewed-by: Robin Murphy Signed-off-by: Chen-Yu Tsai --- arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts | 1 + arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts index e0d75617bb7e..452728b82e42 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts @@ -95,6 +95,7 @@ map3 { }; &pcie0 { + ep-gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>; num-lanes = <4>; vpcie3v3-supply = <&vcc3v3_sys>; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi index 76a8b40a93c6..48ed4aaa37f3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi @@ -504,7 +504,6 @@ &pcie_phy { }; &pcie0 { - ep-gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>; max-link-speed = <2>; num-lanes = <2>; vpcie0v9-supply = <&vcca0v9_s3>;