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=-3.0 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 44D44C43381 for ; Mon, 18 Mar 2019 12:11:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 087692085A for ; Mon, 18 Mar 2019 12:11:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="XNoXjBkp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727357AbfCRMLO (ORCPT ); Mon, 18 Mar 2019 08:11:14 -0400 Received: from mail-wm1-f43.google.com ([209.85.128.43]:35491 "EHLO mail-wm1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726730AbfCRMLO (ORCPT ); Mon, 18 Mar 2019 08:11:14 -0400 Received: by mail-wm1-f43.google.com with SMTP id 81so5237783wme.0 for ; Mon, 18 Mar 2019 05:11:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OATtkI/guzwk7jff6aAB4UFhNL1u85hJ22zQ1YU1uSA=; b=XNoXjBkp0etDY4WhFdw1whuLV90MuRzlKtSf0qq/AkGb6ZeVCiAxzka5XrTTOmAuOT b68Qia6rKCIPY6kfTzfQLhxLkmzqtZsYWS/UQc7Beeh8sCiUFe/kn6jl+4b+9eFWBRPq n5rZWJcEFctMgHS2GvUlZa3Hnb2ZSf7vhYM3leTkHF8yeNhg2K1RgPTbUfekyRJvKVdw 4IfV2eDvnCjRH2hXH9cJYFkAnnfeNcklrfr0nSLgeVdDFP8O87/+I1HvvTvLN4unbZqX Ujl5v5BMJUEmDAuKZ1TBb7MfqhjKWh3s4e0LDC19dyloKtjKdO4GkS2ZACdFp7uixukB 82bw== 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=OATtkI/guzwk7jff6aAB4UFhNL1u85hJ22zQ1YU1uSA=; b=bIpPOFzJMtyY+Py0Xqk/8uTCGGOFAVfGWHJ0VNQGdrBYOQ52UJcRLyBB4wVUozMxgH Bdl3QNW1s/uOSP6fjySPXEhIi8H99oRgXpHdRg0amVlulR0BrKLOg+rcuxIbj1KbidQy qOYANcJCFY33malHwoDNRnoojAZn0SGjHqKLQ/DDNB4Q9mXZ0K0hVhri0a3n7qS1a7Cc bqzs1wCSucXSLkVo4BDcNISurVBgQY/Yz24xcARLwunEmrVk8WI24wKqihFFVZYPmQuf a7hCWoEiBhPVUeqDDfDG21Sbk/77rnp2NpwqMRsG5i4CYJra6O6a86LrNcxBbIqQfaMF Q+3Q== X-Gm-Message-State: APjAAAVIj114ZiUBIdTs/6eHcJVkOboqnLQJ0EI4F/2kewc6LHL3xGVm IxXwi6y0mmvOXFFBhkDgH3nkquE24ss= X-Google-Smtp-Source: APXvYqxW+wJsvAosJf6tVOvPTR5HCUoLirthnQ9X1WlhTGu/98/dVGesoWtoymJBUuRzGel0n2T2zw== X-Received: by 2002:a1c:6042:: with SMTP id u63mr10800672wmb.92.1552911070693; Mon, 18 Mar 2019 05:11:10 -0700 (PDT) Received: from debian-brgl.home ([2a01:cb1d:af:5b00:6d6c:8493:1ab5:dad7]) by smtp.gmail.com with ESMTPSA id n13sm8220132wrw.67.2019.03.18.05.11.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Mar 2019 05:11:09 -0700 (PDT) From: Bartosz Golaszewski To: Sekhar Nori , Kevin Hilman , Daniel Lezcano , Thomas Gleixner , David Lechner Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v4 00/11] ARM: davinci: modernize the timer support Date: Mon, 18 Mar 2019 13:10:49 +0100 Message-Id: <20190318121100.28132-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.20.1 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 From: Bartosz Golaszewski This series removes the legacy timer code from mach-davinci in favor of a new clocksource driver it introduces. Patch 1 adds a new clocksource driver for davinci. Patch 2 enables the new driver for device-tree based systems. Patch 3 adds a WARN_ON() to the machine code of all davinci boards which is triggered if clk_get() for the timer clock fails. This is needed as the new driver expects the clock to be functional and doesn't check it. Patches 4-5 and 7-10 switch the board files to using the new clocksource driver while patch 6 moves some necessary defines to a different place since we'll be removing the file that contains them. Patch 11 removes legacy timer code. v1 -> v2: - changed the license to GPL-only - dropped regmap usage due to the additional code paths making the code too slow - minor code rearrangement - fixed the da830 timer configuration - correctly assign the timer halves to clocksource and clockevent - sqashed the commits adding WARN() when clk_get() fails - used WARN_ON() and added a return when clk_get() fails to avoid entering the timer driver without a valid clock - request the register range before iomapping it - simplified the configuration structure (dropped the additional cmp struct) v2 -> v3: - use readl/writel_relaxed() instead of __raw variants in the clocksource driver - request the memory region before remapping it - add explanatory comments - fixed licensing - used pr_fmt macro - correctly assign the clocksource name - use DEFINE_RES_x macros when defining resources to avoid off-by-one bugs in resource's size - tweak the commit messages - don't delete the comments describing the timer usage - other minor improvements - rebased on top of Sekhar's soc branch - dropped patch fixing the clocksource interrupts in device tree (already upstream) v3 -> v4: - fixed formatting of error messages - fixed comments all around the place - rebased on top of v5.1-rc1 Bartosz Golaszewski (11): clocksource: davinci-timer: new driver ARM: davinci: enable the clocksource driver for DT mode ARM: davinci: WARN_ON() if clk_get() fails ARM: davinci: da850: switch to using the clocksource driver ARM: davinci: da830: switch to using the clocksource driver ARM: davinci: move timer definitions to davinci.h ARM: davinci: dm355: switch to using the clocksource driver ARM: davinci: dm365: switch to using the clocksource driver ARM: davinci: dm644x: switch to using the clocksource driver ARM: davinci: dm646x: switch to using the clocksource driver ARM: davinci: remove legacy timer support arch/arm/Kconfig | 1 + arch/arm/mach-davinci/Makefile | 3 +- arch/arm/mach-davinci/da830.c | 45 +- arch/arm/mach-davinci/da850.c | 50 +-- arch/arm/mach-davinci/davinci.h | 3 + arch/arm/mach-davinci/devices-da8xx.c | 1 - arch/arm/mach-davinci/devices.c | 19 - arch/arm/mach-davinci/dm355.c | 28 +- arch/arm/mach-davinci/dm365.c | 26 +- arch/arm/mach-davinci/dm644x.c | 28 +- arch/arm/mach-davinci/dm646x.c | 28 +- arch/arm/mach-davinci/include/mach/common.h | 17 - arch/arm/mach-davinci/include/mach/time.h | 35 -- arch/arm/mach-davinci/time.c | 414 ------------------ drivers/clocksource/Kconfig | 5 + drivers/clocksource/Makefile | 1 + drivers/clocksource/timer-davinci.c | 438 ++++++++++++++++++++ include/clocksource/timer-davinci.h | 44 ++ 18 files changed, 598 insertions(+), 588 deletions(-) delete mode 100644 arch/arm/mach-davinci/include/mach/time.h delete mode 100644 arch/arm/mach-davinci/time.c create mode 100644 drivers/clocksource/timer-davinci.c create mode 100644 include/clocksource/timer-davinci.h -- 2.20.1