From patchwork Tue Jul 31 16:13:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Georgi Djakov X-Patchwork-Id: 10551001 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4DDC114E0 for ; Tue, 31 Jul 2018 16:13:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D0FB2AE07 for ; Tue, 31 Jul 2018 16:13:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 318002AE3C; Tue, 31 Jul 2018 16:13:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C9B1C2AE07 for ; Tue, 31 Jul 2018 16:13:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732556AbeGaRy6 (ORCPT ); Tue, 31 Jul 2018 13:54:58 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:37032 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732536AbeGaRy6 (ORCPT ); Tue, 31 Jul 2018 13:54:58 -0400 Received: by mail-wr1-f68.google.com with SMTP id q10-v6so17268717wrd.4 for ; Tue, 31 Jul 2018 09:13:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=K+OuSyfn41q9eG33WrMKqO2krbdG9pjKcv2baAyctME=; b=CLJ3iguWWFbaIUz2Z+1ims8YJIQtFqvuzc422GhxGQFk5fLddWtgOhxu8JxcgYVfry zNdoN0nXPT7UvGtxDcQ1ix1B7vbXkZJ3SqZdYdBYI/wXG/LEh34DAnLKjh9e700iXPtA FEJvpp3421DE2X7npcXQLW+VItS4FPRnExR5E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=K+OuSyfn41q9eG33WrMKqO2krbdG9pjKcv2baAyctME=; b=cwUbzKkbKSYZGPcl6ceeWfdCTn+Nb1eeRYsfHdCakv5b+3ByqIyWdt0wXyyDBf8cXE /6VEqIrYxB0aC25CkYiKqLUPkhkm6Tu/p2PnSJRHBBoqwMO5r3oJ16odAKXyTkmwehZd sm+P0s7q5B5YSrxFaZx2SUUnB0wtnAVB816OF/gcBoxe6QSDoxrCYdFVmVgVQkLcGXDb v06XHQ0y/LE+B8lGELQUvOQk08sQtcvPlgkSh46ohKM2FFGjAFr7a81U2gVgMaza5j5+ GHKi+wiAwV6+f9SY4UTT98/WsWKIQUEeqFjt8unmpX05IdDyPxuGBe82zfNwr0A3YA/u /uQg== X-Gm-Message-State: AOUpUlHUAXMgUGhZgcuYvFty2ibcrI2jG7zjbQ0y5XFY5MS8NNhtJQnv RBiGMBgTzSrApZTYhazsaciUVg== X-Google-Smtp-Source: AAOMgpeKXRMeTa9D5g2sSV+TQwa6SVZGHMy9DkBiMs8xcpbmANoNwk9/+1OVj4NLWZ6er5yEfzR5Pg== X-Received: by 2002:adf:8325:: with SMTP id 34-v6mr21291114wrd.67.1533053635362; Tue, 31 Jul 2018 09:13:55 -0700 (PDT) Received: from localhost.localdomain ([212.45.67.2]) by smtp.googlemail.com with ESMTPSA id t186-v6sm3643457wmf.14.2018.07.31.09.13.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 31 Jul 2018 09:13:54 -0700 (PDT) From: Georgi Djakov To: linux-pm@vger.kernel.org, gregkh@linuxfoundation.org Cc: rjw@rjwysocki.net, robh+dt@kernel.org, mturquette@baylibre.com, khilman@baylibre.com, vincent.guittot@linaro.org, skannan@codeaurora.org, bjorn.andersson@linaro.org, amit.kucheria@linaro.org, seansw@qti.qualcomm.com, daidavid1@codeaurora.org, evgreen@chromium.org, mark.rutland@arm.com, lorenzo.pieralisi@arm.com, abailon@baylibre.com, arnd@arndb.de, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, georgi.djakov@linaro.org Subject: [PATCH v7 7/8] dt-bindings: Introduce interconnect consumers bindings Date: Tue, 31 Jul 2018 19:13:39 +0300 Message-Id: <20180731161340.13000-8-georgi.djakov@linaro.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180731161340.13000-1-georgi.djakov@linaro.org> References: <20180731161340.13000-1-georgi.djakov@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add documentation for the interconnect consumer bindings, that will allow to link a device node (consumer) to its interconnect controller hardware. Tha aim is to enable drivers to request a framework API to configure an interconnect path by providing their struct device pointer and a name. Signed-off-by: Georgi Djakov --- .../bindings/interconnect/interconnect.txt | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/interconnect/interconnect.txt b/Documentation/devicetree/bindings/interconnect/interconnect.txt index 6e2b2971b094..5cb7d3c8d44d 100644 --- a/Documentation/devicetree/bindings/interconnect/interconnect.txt +++ b/Documentation/devicetree/bindings/interconnect/interconnect.txt @@ -31,3 +31,30 @@ Example: clocks = <&rpmcc RPM_SMD_SNOC_CLK>, <&rpmcc RPM_SMD_SNOC_A_CLK>; }; + + += interconnect consumers = + +The interconnect consumers are device nodes which dynamically express their +bandwidth requirements along interconnect paths they are connected to. There +can be multiple interconnect providers on a SoC and the consumer may consume +multiple paths from different providers depending on use case and the +components it has to interact with. + +Required properties: +interconnects : Pairs of phandles and interconnect provider specifier to denote + the edge source and destination ports of the interconnect path. + +Optional properties: +interconnect-names : List of interconnect path name strings sorted in the same + order as the interconnects property. Consumers drivers will use + interconnect-names to match interconnect paths with interconnect + specifiers. + +Example: + + sdhci@7864000 { + ... + interconnects = <&pnoc MASTER_SDCC_1 &bimc SLAVE_EBI_CH0>; + interconnect-names = "ddr"; + };