From patchwork Fri Jul 10 23:08:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 11657539 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 754C313BD for ; Fri, 10 Jul 2020 23:10:02 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 4E26B205CB for ; Fri, 10 Jul 2020 23:10:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="t5/OXQyj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E26B205CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=uUF+fi7+P/RaIhM088dgw4mkV8rpbdns9sFld/VJmAU=; b=t5/OXQyjBsPUMFvSeQ2i3xR0GY 3LynY40B8s87iV6u96aoLNG8Hq2emgzPq34LM8FPM3pxM2kH7+8hXaUr7wUq+GuOTIzmesWkKmSGK upbkbfGTFpjyGKvNKCXPOuVK4rTWUSbTKhuMBysw4DyHNqxKTnkYuNXcRL1ZzsUZjXZfOHolnLzt1 YnPbw81Fui272vRH1lyTpiONL7QX3prrgV2y6MWJ69n00y39oMWYf9BdFsFh5rjN3N9wORGP82128 peWUoZN46OHqDv6UPS2/sL2iIwT5z4JDFf+DSgdHe8MuitA2UwNChEgGDgjj6mcBt4X28Jo6VJgzI 80xdRagw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ju282-0004Kg-SQ; Fri, 10 Jul 2020 23:08:26 +0000 Received: from relay1-d.mail.gandi.net ([217.70.183.193]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ju27w-0004Hl-8O for linux-arm-kernel@lists.infradead.org; Fri, 10 Jul 2020 23:08:21 +0000 X-Originating-IP: 90.65.108.121 Received: from localhost (lfbn-lyo-1-1676-121.w90-65.abo.wanadoo.fr [90.65.108.121]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay1-d.mail.gandi.net (Postfix) with ESMTPSA id 9A64E240002; Fri, 10 Jul 2020 23:08:15 +0000 (UTC) From: Alexandre Belloni To: Daniel Lezcano Subject: [PATCH v6 0/9] clocksource/drivers/timer-atmel-tcb: add sama5d2 support Date: Sat, 11 Jul 2020 01:08:04 +0200 Message-Id: <20200710230813.1005150-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200710_190820_430200_0E9EF160 X-CRM114-Status: GOOD ( 13.37 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [217.70.183.193 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [217.70.183.193 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kamel.bouhara@bootlin.com, Alexandre Belloni , Sebastian Andrzej Siewior , linux-kernel@vger.kernel.org, Thomas Gleixner , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hello, This series mainly adds sama5d2 support where we need to avoid using clock index 0 because that clock is never enabled by the driver. There is also a rework of the 32khz clock handling so it is not used for clockevents on 32 bit counter because the increased rate improves the resolution and doesn't have any drawback with that counter width. This replaces a patch that has been carried in the linux-rt tree for a while. Changes in v6: - Added final Rob's Reviewed by, based on: https://lore.kernel.org/linux-arm-kernel/20200709210543.GA884561@bogus/ - fixed the clockevent periodic rate Changes in v5: - Rebased on top of v5.8-rc1 - Added Rob's ack Changes in v4: - Rework binding documentation Changes in v3: - Moved the child node documentation to the parent documentation Changes in v2: - Rebased on v5.7-rc1 - Moved the binding documentation to its proper place - Added back the atmel,tcb-timer child node documentation Alexandre Belloni (8): dt-bindings: atmel-tcb: convert bindings to json-schema dt-bindings: microchip: atmel,at91rm9200-tcb: add sama5d2 compatible ARM: dts: at91: sama5d2: add TCB GCLK clocksource/drivers/timer-atmel-tcb: rework 32khz clock selection clocksource/drivers/timer-atmel-tcb: fill tcb_config clocksource/drivers/timer-atmel-tcb: stop using the 32kHz for clockevents clocksource/drivers/timer-atmel-tcb: allow selecting first divider clocksource/drivers/timer-atmel-tcb: add sama5d2 support Kamel Bouhara (1): ARM: at91: add atmel tcb capabilities .../devicetree/bindings/mfd/atmel-tcb.txt | 56 ------- .../soc/microchip/atmel,at91rm9200-tcb.yaml | 155 ++++++++++++++++++ arch/arm/boot/dts/sama5d2.dtsi | 12 +- drivers/clocksource/timer-atmel-tcb.c | 103 +++++++----- include/soc/at91/atmel_tcb.h | 5 + 5 files changed, 225 insertions(+), 106 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mfd/atmel-tcb.txt create mode 100644 Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml