From patchwork Tue Apr 23 08:33:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 10912267 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 17D331515 for ; Tue, 23 Apr 2019 08:34:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0722D27F86 for ; Tue, 23 Apr 2019 08:34:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EF9592852C; Tue, 23 Apr 2019 08:34:25 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 92C6F27F86 for ; Tue, 23 Apr 2019 08:34:25 +0000 (UTC) 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: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:In-Reply-To:References: List-Owner; bh=Mfpu1Hd2Fj4vxMIpsGIA78/XxB0rif/pUNAytMYAgzs=; b=T64BYOBcfd47V6 z0k7trgk+KkYg7sOlSloLyoqW500CV/Je6yTHb6VBu7G8Ti8QYw/pfW1d5+NKEMm7e6SqRptgKmj8 tmMoJkS8gy0mzlPVggSiQrQt+iBY5CbpdcDFeb4sYaoGAojL2+h+AlAcfU2SuDxSzlGYj8zhDoCfB OBbwkh9rxahfoU2iwqX5WLTf9szbObGjpzWwRkZMV4Vp/NDPJWvTOweOrF88qKr9m+jdF8Nb33Cjf IhC8+e6pclB2lyiBl9J+WVuQVtmt4xWh9YqsuEJX6A3v0tXPc431Mzkzxt7QkmAjTZPbtJ6pF5MmY 5GORdILVXzsNA7JoTp2Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hIqse-0000aJ-7B; Tue, 23 Apr 2019 08:34:20 +0000 Received: from relay12.mail.gandi.net ([217.70.178.232]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hIqsa-0000ZK-Jb for linux-arm-kernel@lists.infradead.org; Tue, 23 Apr 2019 08:34:18 +0000 Received: from localhost (87-231-134-186.rev.numericable.fr [87.231.134.186]) (Authenticated sender: gregory.clement@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 56D14200012; Tue, 23 Apr 2019 08:34:11 +0000 (UTC) From: Gregory CLEMENT To: Stephen Boyd , Mike Turquette , linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 0/6] Add CPU clock support for Armada 7K/8K Date: Tue, 23 Apr 2019 10:33:48 +0200 Message-Id: <20190423083354.17785-1-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190423_013416_791691_03B99703 X-CRM114-Status: GOOD ( 16.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jason Cooper , Andrew Lunn , Antoine Tenart , Gregory CLEMENT , Maxime Chevallier , Rob Herring , Thomas Petazzoni , =?utf-8?q?Miqu=C3=A8l_Rayn?= =?utf-8?q?al?= , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Hello, This is the forth version of a series allowing to manage the cpu clock for Armada 7K/8K. The third version was sent more than 3 months without any relevant feedback since this end of decembe last year. For these SoCs, the CPUs share the same clock by cluster, so actually the clock management is done at cluster level. As for the other Armada 7K/8K clocks it is possible to have multiple AP so here again we need to have unique name: the purpose of the second patch is to share a common code which will be used in 3 drivers. The last 2 patch enable the driver at dt and platform level and will be applied through the mvebu subsystem. Changelog v4->v5: - As requested by the device tree maintainer make the reg property mandatory - Updated the device tree files accordingly with the new binding Changelog v3->v4: - Rebased on v5.1-rc1 - Mention in the binding that a reg property can be used to make the device tree maintainer happy in the hope that there will be finally a review on this patch blocking the whole series. Changelog v2->v3: - Add back the first patch documenting the binding Changelog v1->v2: - Header cleanup - Use unsigned int instead of it for cluster member of the ap_cpu_clk struct - Use clk_hw instead of clk - Use regmap_read_poll_timeout - Use for_each_of_cpu_node - Remove unnecessary WARN_ON() - Remove headers from armada_ap_cp_helper.h - Few other minor cleanup Gregory CLEMENT (6): dt-bindings: ap806: add the cluster clock node in the syscon file clk: mvebu: add helper file for Armada AP and CP clocks clk: mvebu: add CPU clock driver for Armada 7K/8K clk: mvebu: ap806: Fix clock name for the cluster arm64: marvell: enable the Armada 7K/8K CPU clk driver arm64: dts: marvell: Add cpu clock node on Armada 7K/8K .../arm/marvell/ap806-system-controller.txt | 26 ++ arch/arm64/Kconfig.platforms | 1 + .../boot/dts/marvell/armada-ap806-quad.dtsi | 4 + arch/arm64/boot/dts/marvell/armada-ap806.dtsi | 7 + drivers/clk/mvebu/Kconfig | 8 + drivers/clk/mvebu/Makefile | 2 + drivers/clk/mvebu/ap-cpu-clk.c | 259 ++++++++++++++++++ drivers/clk/mvebu/ap806-system-controller.c | 24 +- drivers/clk/mvebu/armada_ap_cp_helper.c | 30 ++ drivers/clk/mvebu/armada_ap_cp_helper.h | 11 + drivers/clk/mvebu/cp110-system-controller.c | 32 +-- 11 files changed, 362 insertions(+), 42 deletions(-) create mode 100644 drivers/clk/mvebu/ap-cpu-clk.c create mode 100644 drivers/clk/mvebu/armada_ap_cp_helper.c create mode 100644 drivers/clk/mvebu/armada_ap_cp_helper.h