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 X-Spam-Level: X-Spam-Status: No, score=-4.5 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6FF6C43441 for ; Wed, 14 Nov 2018 13:16:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 82A1D2087A for ; Wed, 14 Nov 2018 13:16:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="Pc86ONTf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 82A1D2087A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732490AbeKNXTo (ORCPT ); Wed, 14 Nov 2018 18:19:44 -0500 Received: from mail-wr1-f66.google.com ([209.85.221.66]:40497 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727731AbeKNXTo (ORCPT ); Wed, 14 Nov 2018 18:19:44 -0500 Received: by mail-wr1-f66.google.com with SMTP id p4so8070734wrt.7 for ; Wed, 14 Nov 2018 05:16:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=kL8jvYvMFWDaNaJSeIaQxNfaY5lCTtC9sm3OCvvB3Wo=; b=Pc86ONTf9PAyRcDJ1tIMCOOdLR9umQFC7aDrVz8SQdjyToWPHXeZ2fTlDaUCAHr1MV hEY2G1E7R7+ZLYXg8BYtTnoy/RgG6P9S60EAaLUY/gK3WPq7FgR4a39Y1jAYvPSKRLks zE9RU0roJqNycoyFDmqxuoDY6vOkamfVRyegIbl7DC0g3/iDo98lNYgylSHLQrBe3vHi 597B9YV57CeF19fUfTupzOPDJCLo0sWqp1DZRowRuw0n14TCMd4q48LejKRq80oLr+o2 whVyKVlGSmzKgZeo/2p/DCl+P0/5QuIVasv+OPs46X0YRWa0a+ebp1ByCZUXFIRHQjCR aSDQ== 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:mime-version :content-transfer-encoding; bh=kL8jvYvMFWDaNaJSeIaQxNfaY5lCTtC9sm3OCvvB3Wo=; b=F/DFGyB05B3j+P84rHrNY64AFuMjpABPAajanV9Q8v1tYdPq7wQG2h4pkW647A7GGx T3Y64T/jzaFLlWG47Rsf3jXtB34oRYPAGcbepHmFXi9/fHV0ckzmQHTF9IRFB//yW42F SQs7O5tNMScSfpwdAYFALoYkhRyIigs5ONcX4gzlqrXKrCEW3ms+CG4y0dmfYacrRZve /yecMWKwAilYp22gBf54xDg1CyUc9QDeeRkdPBrVuceB/4y4mfsWFw+0LXPC5uW2uUoz ejLZN+pxJ/tOSicb9pjPUQ8xG4SjvSSvvm38ifGX1pqHslXFO2dAGhSZa+eHx6JbHmyv Q8yg== X-Gm-Message-State: AGRZ1gJOwuNQxZI2mUIGd6FdpQxAUNbKyLvsgHd3fEN216L6owPemOzu PpgIcvUJgnp5V3TfqSW6tAtUnw== X-Google-Smtp-Source: AJdET5dFcqF6BNZcdG5V6ZXXs/ShZ4GS+Jxs6rUNiHS/7F5fUn3jhBZqXBBB+dm9NmzAjUv1HyYuPw== X-Received: by 2002:a5d:4c4d:: with SMTP id n13-v6mr1842563wrt.298.1542201389864; Wed, 14 Nov 2018 05:16:29 -0800 (PST) Received: from bender.baylibre.local ([90.63.244.31]) by smtp.gmail.com with ESMTPSA id z7-v6sm22715225wrv.21.2018.11.14.05.16.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 14 Nov 2018 05:16:28 -0800 (PST) From: Neil Armstrong To: khilman@baylibre.com Cc: Neil Armstrong , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/3] Add Amlogic Meson GX SoC Clock Measure Driver Date: Wed, 14 Nov 2018 14:16:24 +0100 Message-Id: <20181114131627.17766-1-narmstrong@baylibre.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Amlogic Meson GX SoCs embeds a clock measurer IP to measure the internal clocks frequencyies. The precision is determined by stepping into the divider until the counter overflows. The debugfs slows a pretty summary and each clock can be measured individually aswell. Thsi patchset includes the dt-bindings, driver and the DT node added to the meson-gx dtsi. Changes since v1 at [1]: - fixed clock names - added summary in debugfs and moved indivudual clocks into a subdirectory - added the GX table to the match data Neil Armstrong (3): dt-bindings: amlogic: Add Internal Clock Measurer bindings soc: amlogic: Add Meson GX Clock Measure driver ARM64: dts: meson-gx: Add Internal Clock Measurer node .../bindings/soc/amlogic/clk-measure.txt | 15 + arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 5 + drivers/soc/amlogic/Kconfig | 8 + drivers/soc/amlogic/Makefile | 1 + drivers/soc/amlogic/meson-gx-clk-measure.c | 293 ++++++++++++++++++ 5 files changed, 322 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/amlogic/clk-measure.txt create mode 100644 drivers/soc/amlogic/meson-gx-clk-measure.c -- 2.19.1