From patchwork Tue Sep 17 08:26:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 11148259 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 567CE1708 for ; Tue, 17 Sep 2019 08:30:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 34A6620678 for ; Tue, 17 Sep 2019 08:30:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Z0guUOkW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 34A6620678 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=EJadrDNSmpZftC2a2Y2VlMOCZX/SbLnkEPctKG5QUoo=; b=Z0guUOkWXaYZiH myhf/nWtWVPNkKqPoYRMt93IM5E8igbpBFOcMKvTBrjkSPr9N7zfCvgY8LSLLqBpgAqligTuqhRXN oD2GgROyQkUVZf9fzu3VLZjVf+TrrPnwhyjLJ8h4mjakuY1d2vYgMMU+iVXTLSxnTlogIyPInWZqv iAic/pU98gRYPOIDjR8bTs3OMn8POk39fnErZBB7ejnMFVsOEQFKsMOEdLqqI7nXO8jsU0OhEHr77 TOY55mQEoI1x7UWKD8dOxM6Pi7E1hGmXGM7pqNvqyuJWOGvA4JhIrwHkS/KhLyNFSBGotFDvuhHHx d2n6xcif7WGe6MpRrkXA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iA8sd-0006Kj-Kj; Tue, 17 Sep 2019 08:30:35 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iA8pN-0002Ii-N8; Tue, 17 Sep 2019 08:27:15 +0000 Received: from ip5f5a6266.dynamic.kabel-deutschland.de ([95.90.98.102] helo=phil.fritz.box) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1iA8pJ-0005ZY-KU; Tue, 17 Sep 2019 10:27:09 +0200 From: Heiko Stuebner To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 09/13] arm64: dts: rockchip: document explicit px30 cru dependencies Date: Tue, 17 Sep 2019 10:26:55 +0200 Message-Id: <20190917082659.25549-9-heiko@sntech.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190917082659.25549-1-heiko@sntech.de> References: <20190917082659.25549-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190917_012713_922378_B79D9166 X-CRM114-Status: GOOD ( 13.85 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, Heiko Stuebner , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, christoph.muellner@theobroma-systems.com Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org The px30 contains 2 separate clock controllers the regular cru creating most clocks as well as the pmucru managing the GPLL and some other clocks. The gpll of course also is needed by the cru, so while we normally do rely on clock names to associate clocks getting probed later on (for example xin32k coming from an i2c device in most cases) it is safer to declare the explicit dependency between the two crus. This makes sure that for example the clock-framework probes them in the correct order from the start. The assigned-clocks properties were simply working by chance in the past so split them accordingly to the 2 crus to honor the loading direction. Signed-off-by: Heiko Stuebner Reviewed-by: Rob Herring --- .../bindings/clock/rockchip,px30-cru.txt | 5 ++++ arch/arm64/boot/dts/rockchip/px30.dtsi | 25 +++++++++++-------- 2 files changed, 20 insertions(+), 10 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt index 39f0c1ac84ee..55e78cddec8c 100644 --- a/Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt +++ b/Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt @@ -10,6 +10,11 @@ Required Properties: - compatible: CRU should be "rockchip,px30-cru" - reg: physical base address of the controller and length of memory mapped region. +- clocks: A list of phandle + clock-specifier pairs for the clocks listed + in clock-names +- clock-names: Should contain the following: + - "xin24m" for both PMUCRU and CRU + - "gpll" for CRU (sourced from PMUCRU) - #clock-cells: should be 1. - #reset-cells: should be 1. diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi index 63499d27994c..9ad1c2f04ea9 100644 --- a/arch/arm64/boot/dts/rockchip/px30.dtsi +++ b/arch/arm64/boot/dts/rockchip/px30.dtsi @@ -667,33 +667,38 @@ cru: clock-controller@ff2b0000 { compatible = "rockchip,px30-cru"; reg = <0x0 0xff2b0000 0x0 0x1000>; + clocks = <&xin24m>, <&pmucru PLL_GPLL>; + clock-names = "xin24m", "gpll"; rockchip,grf = <&grf>; #clock-cells = <1>; #reset-cells = <1>; - assigned-clocks = <&cru PLL_NPLL>; - assigned-clock-rates = <1188000000>; + assigned-clocks = <&cru PLL_NPLL>, + <&cru ACLK_BUS_PRE>, <&cru ACLK_PERI_PRE>, + <&cru HCLK_BUS_PRE>, <&cru HCLK_PERI_PRE>, + <&cru PCLK_BUS_PRE>, <&cru SCLK_GPU>; + + assigned-clock-rates = <1188000000>, + <200000000>, <200000000>, + <150000000>, <150000000>, + <100000000>, <200000000>; }; pmucru: clock-controller@ff2bc000 { compatible = "rockchip,px30-pmucru"; reg = <0x0 0xff2bc000 0x0 0x1000>; + clocks = <&xin24m>; + clock-names = "xin24m"; rockchip,grf = <&grf>; #clock-cells = <1>; #reset-cells = <1>; assigned-clocks = <&pmucru PLL_GPLL>, <&pmucru PCLK_PMU_PRE>, - <&pmucru SCLK_WIFI_PMU>, <&cru ARMCLK>, - <&cru ACLK_BUS_PRE>, <&cru ACLK_PERI_PRE>, - <&cru HCLK_BUS_PRE>, <&cru HCLK_PERI_PRE>, - <&cru PCLK_BUS_PRE>, <&cru SCLK_GPU>; + <&pmucru SCLK_WIFI_PMU>; assigned-clock-rates = <1200000000>, <100000000>, - <26000000>, <600000000>, - <200000000>, <200000000>, - <150000000>, <150000000>, - <100000000>, <200000000>; + <26000000>; }; usb20_otg: usb@ff300000 {