From patchwork Mon Jul 6 11:43:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamel BOUHARA X-Patchwork-Id: 11645483 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 E772A92A for ; Mon, 6 Jul 2020 11:45:37 +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 C0552206E6 for ; Mon, 6 Jul 2020 11:45:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Q+y4q01x" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C0552206E6 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=Z0b6301LNpvF9DY84ySeEs6qts/FzGfhVFtwt67sNH4=; b=Q+y4q01xtsfW/8HxVtKn0eZC8E LU7mggs2u0Q6SqGy/bUBn+tiLzrgljg4NRVbRq4T3C5uceDcW9bAi2i997fAtApzM8AsftYvyFB2S GhvRv97O78zm9NJl1GSZ4oBXXmYHWoJ9sPnb8rdEWt9mk//QCvUbZ/qB6xGlxSFweU68tYziUhLVx oVLaCKPedlkjjJP3gypPxrnOpN48xaB0MLzbD+ifpFlCmkdRw0oVDkyY4kh+DxpN4cDltlSTmx3ph BJhVe+KZD8a9ZOQJMTiRiCnUq6jJ+9rzliqGcTRmsltxSmXqMHG+w10TbZd82aQHuV9lsJaWS3Ltd OrXQ+bAg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsPXb-00013z-U2; Mon, 06 Jul 2020 11:44:07 +0000 Received: from relay2-d.mail.gandi.net ([217.70.183.194]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsPXZ-00012o-0P for linux-arm-kernel@lists.infradead.org; Mon, 06 Jul 2020 11:44:06 +0000 X-Originating-IP: 86.202.118.225 Received: from localhost (lfbn-lyo-1-23-225.w86-202.abo.wanadoo.fr [86.202.118.225]) (Authenticated sender: kamel.bouhara@bootlin.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 204804000F; Mon, 6 Jul 2020 11:44:00 +0000 (UTC) From: Kamel Bouhara To: William Breathitt Gray , Rob Herring , Mark Rutland , Nicolas Ferre , Alexandre Belloni , Ludovic Desroches , linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 0/5] Microchip TCB Capture driver Date: Mon, 6 Jul 2020 13:43:42 +0200 Message-Id: <20200706114347.174452-1-kamel.bouhara@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-20200706_074405_148010_252127C1 X-CRM114-Status: GOOD ( 15.05 ) 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 ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [217.70.183.194 listed in wl.mailspike.net] -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at https://www.dnswl.org/, low trust [217.70.183.194 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an 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: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Kamel Bouhara , Thomas Petazzoni , linux-input@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hello, Here is a new counter driver to support Microchip TCB capture devices. Each SoC has two TCB blocks, each one including three independent channels.The following series adds support for two counter modes: increase and quadrature decoder. As for the atmel clocksource and pwm, the counter driver needs to fill some tcb capabilities in order to operate with the right configuration. This is achieved in first patch of this series. Please feel free to comment. Cheers, Changes in v6: - Rebased on top of v5.8-rc3 - Added Alexandre's ack - Added Rob's ack Changes in v5: - Fix duplicate keys errors in yaml dt-schema Changes in v4: - Use existing binding to document capture mode of the Microchip TCBs. Changes in v3: - Updated the brand name: s/atmel/microchip/. - Added missing kernel doc for new elements introduced in structure atmel_tcb_config. - Removed useless blank line - Added an explicit clock removing path using devm_add_action_or_reset Changes in v2: - Fixed first patch not applying on mainline - Updated return code to -EINVAL when user is requesting qdec mode on a counter device not supporting it. - Added an error case returning -EINVAL when action edge is performed in qdec mode. - Removed no need to explicity setting ops to NULL from static struct as it is the default value. - Changed confusing code by using snprintf for the sake of clarity. - Changed code to use ARRAY_SIZE so that future reviewers will know that num_counts matches what's in the atmel_tc_count array without having to check so themselves. - Fixed errors reported by dt_binding_check Alexandre Belloni (2): dt-bindings: atmel-tcb: convert bindings to json-schema dt-bindings: microchip: atmel,at91rm9200-tcb: add sama5d2 compatible Kamel Bouhara (3): ARM: at91: add atmel tcb capabilities dt-bindings: counter: microchip-tcb-capture counter counter: Add microchip TCB capture counter .../devicetree/bindings/mfd/atmel-tcb.txt | 56 --- .../soc/microchip/atmel,at91rm9200-tcb.yaml | 181 ++++++++ drivers/counter/Kconfig | 11 + drivers/counter/Makefile | 1 + drivers/counter/microchip-tcb-capture.c | 397 ++++++++++++++++++ include/soc/at91/atmel_tcb.h | 5 + 6 files changed, 595 insertions(+), 56 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mfd/atmel-tcb.txt create mode 100644 Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml create mode 100644 drivers/counter/microchip-tcb-capture.c --- 2.26.2