From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2CF42C3DA61 for ; Sat, 27 Jul 2024 15:53:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-ID:References:In-Reply-To:Subject:Cc:To:From :Date:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=W4gUMHHk4j6mXi9r3TMSi2F39Rz1ED55j1fz8BkLCG4=; b=fr6zSikwz951qmxSTqvktdwW0y qzHbaes/rNEZEPAsi3el3DXNZqRY7SMEwlZkwgJUunW4m6B2ye6f0wEMh1dPHqpUwTn5DJpwtdBl3 tC/3oOjYVLwB9/O7zE3QZXqc+q6XcHC0FdelUGU/ENIcr4CizzJGdLA5gnvMdsL9xJvW15JBd3Rbp q7hsMYxMeLmYf4SAp6dOMI9qSLNt6UQbW17cCcM0URpaa16Wb/hqSpKxCh9O4axFpQEw4lCtKFndE u8q1F5dllL6dJ8F7lCiBidCk8mxFir6GAy+U+ZoR/hw5v6SYIjZRROIFPNtR8EsxEOHd3hciUFlGW ilBsdKFQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sXjjf-00000006vOn-4BCm; Sat, 27 Jul 2024 15:53:32 +0000 Received: from mail.manjaro.org ([2a01:4f8:c0c:51f3::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sXjjF-00000006vKE-0kTQ; Sat, 27 Jul 2024 15:53:07 +0000 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manjaro.org; s=2021; t=1722095580; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ey6TLlvsh7W76LTwNBcAOelGm+P+oLYiI/XxNUy/ajs=; b=lILBN6Is22+9nU3ZLKmZZFQGypsmiPkSNwHkNaelTVENPDXy9VcT7CBsOKOm7g4UAX7wpd cALDfvIgXMszyl8NUSwXidsZjg59Z8ozIFbvx/Vf776+EIGSlapfqH0gRaFwhPRk9YE78U LdgsFH3GPhJSc5At98CCtCO6OdYLHKEM3dZVB8CYZH6lM/ErBFbiwD/ZbL/inx5zIrpUf8 5j8OUmJ3wRLiz+42XPV408rtMmAmwsfNCWzU2akorIG8h7Zxy0YRyNcT1oGLSuO/mgUR8N Njz7W0Kj3n41hd8PkmGaww5lVfVbjw4sF1SvsnbhvZ09iqzH3/sLIsEgzIlgyQ== Date: Sat, 27 Jul 2024 17:52:59 +0200 From: Dragan Simic To: Anand Moon Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Jonas Karlman , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 1/3] arm64: dts: rockchip: Add missing pinctrl for PCIe30x4 node In-Reply-To: <20240726110050.3664-1-linux.amoon@gmail.com> References: <20240726110050.3664-1-linux.amoon@gmail.com> Message-ID: X-Sender: dsimic@manjaro.org Authentication-Results: ORIGINATING; auth=pass smtp.auth=dsimic@manjaro.org smtp.mailfrom=dsimic@manjaro.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240727_085305_858393_3870E6B6 X-CRM114-Status: GOOD ( 23.13 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Hello Anand, On 2024-07-26 13:00, Anand Moon wrote: > Add missing pinctrl settings for PCIe 3.0 x4 clock request and wake > signals. Each component of PCIe communication have the following > control > signals: PERST, WAKE, CLKREQ, and REFCLK. These signals work to > generate > high-speed signals and communicate with other PCIe devices. > Used by root complex to endpoint depending on the power state. > > PERST is referred to as a fundamental reset. PERST should be held low > until all the power rails in the system and the reference clock are > stable. > A transition from low to high in this signal usually indicates the > beginning of link initialization. > > WAKE signal is an active-low signal that is used to return the PCIe > interface to an active state when in a low-power state. > > CLKREQ signal is also an active-low signal and is used to request the > reference clock. > > Rename node from 'pcie3' to 'pcie30x4' to align with schematic > nomenclature. I wonder why the three patches in this series cannot be squashed into a single patch, because they target the same thing for the same board dts file? I don't think that having these three separate patches may help with possible regression tracking in the future, for example. > Signed-off-by: Anand Moon > --- > v4: rebase on master, used RK_FUNC_GPIO GPIO function instead of PIN > number. > V3: use pinctrl local to board > V2: Update the commit messge to describe the changs. > use pinctl group as its pre define in pinctrl dtsi > --- > .../arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 18 ++++++++++++------ > 1 file changed, 12 insertions(+), 6 deletions(-) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts > b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts > index 966bbc582d89..1c7080cca11f 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts > +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts > @@ -338,7 +338,7 @@ &pcie30phy { > > &pcie3x4 { > pinctrl-names = "default"; > - pinctrl-0 = <&pcie3_rst>; > + pinctrl-0 = <&pcie30x4_pins>; > reset-gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>; > vpcie3v3-supply = <&vcc3v3_pcie30>; > status = "okay"; > @@ -377,14 +377,20 @@ pcie2_2_rst: pcie2-2-rst { > }; > }; > > - pcie3 { > - pcie3_rst: pcie3-rst { > - rockchip,pins = <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>; > - }; > - > + pcie30x4 { > pcie3_vcc3v3_en: pcie3-vcc3v3-en { > rockchip,pins = <1 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>; > }; > + > + pcie30x4_pins: pcie30x4-pins { > + rockchip,pins = > + /* PCIE30X4_CLKREQn_M1_L */ > + <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_up>, > + /* PCIE30X4_PERSTn_M1_L */ > + <4 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>, > + /* PCIE30X4_WAKEn_M1_L */ > + <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_down>; > + }; > }; > > usb { > > base-commit: 1722389b0d863056d78287a120a1d6cadb8d4f7b _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip