From patchwork Thu Feb 27 14:40:17 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QmVuY2UgQ3PDs2vDoXM=?= X-Patchwork-Id: 13995068 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0F041C1B087 for ; Thu, 27 Feb 2025 19:37:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:Subject:CC: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=7+U/H48sVhDKT4EC1mYrNr5/JRrYqDkzYSFlQnG2vr8=; b=hEhsl+Pz6gX7ocUFiuSNtcqevt S1kZls7Ae6z5e5cXRv3OCTB3yNqb18zGzkxKm7FWNkmaSf1pPzzer3sO2yh3wzRgF/bVnHu+fCxli Du58GGVfcu/55Eho9rQv6hRQcG9AhGt/ITMGuI3PqR8V9rCJmI7fIbPDI9Ai65Cn+tGAq17cFXEGc HTf1L9fbPsrsIQyOMqnP8Hn32+TuFqwm3BTyWu4qhiRTjaTN4AzFVVigU3Y6RM4/0MyWugncU+BRj zNFidNM23DrCKaXHJCtYRoZT1BI07D9/rY1wtgkIEK8/fZ2TPzNaBtvVoyTvTziLNmx8oAEEs6EX5 innMdfVA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnjh5-00000008Th5-0Hcc; Thu, 27 Feb 2025 19:37:15 +0000 Received: from fw2.prolan.hu ([193.68.50.107]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tnf4O-00000007mpb-14MP for linux-arm-kernel@lists.infradead.org; Thu, 27 Feb 2025 14:41:01 +0000 Received: from proxmox-mailgw.intranet.prolan.hu (localhost.localdomain [127.0.0.1]) by proxmox-mailgw.intranet.prolan.hu (Proxmox) with ESMTP id A4C2AA0622; Thu, 27 Feb 2025 15:40:58 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=prolan.hu; h=cc :cc:content-transfer-encoding:content-type:content-type:date :from:from:message-id:mime-version:reply-to:subject:subject:to :to; s=mail; bh=7+U/H48sVhDKT4EC1mYrNr5/JRrYqDkzYSFlQnG2vr8=; b= gI7SsqlzWMgZVk7fqNN+kHmCrqYnQ7hn4k77RkEs2V7qldFQ+Gi2IMt9DVyAsSuX WcrTk/nQ/pecNCkQjTWyRbG8LPz3nL2Y2R8t3831tJ6JYKqVMh2vc1sOdpNVG8jn pUZIGbBjxltXbfg+qNZw5PVUqLpkDhdaJq/DCXH/IRoA5lakR5ENUi70eS7G0XGL ADyDBf8tnB/0+SIJrlA7i2o6RuZ20nwU0anEOYmcIZjqtK6x/uuxF7EeQObNKpRL 75CIizcobZAr6JObcz+Mn4yAB7hi/F35wykYh3DJbjQ0wY0hjR/Q0mgg1hzMpTQc UyoVT/fLSRdTxMBqMamAQ02kOueGmtC1Xzw0zQruZvqJkvHbWF73/5blSY32/Ram Dbktb/psWk0XdZrUR2Q21pSGlnh1Nqn8F7pcp7yDKizmQ71FHKMx3ABZr3qlEOll ZEnsmo5huqkTTOSqsjSkcGCdZ4TJ9+3WJfK4UgINDiG8eUzj5rWgR0uchtyYciNg MCJygyYLG+D0CHK2kMghIY8OqU73eNBvK673++NnUHEBwMvwRN/f+YkI8Ar2iovl PHAdmEKSA8UyRibZiM2crAQKLivRZTVp8Oc6hxl0Pam3hRef87H25+Q0IcQ0QK15 Qr2e4TCAT7AuZiBw+o90ewmxA7w0i+2pmDv1+oU5Fe8= From: =?utf-8?b?QmVuY2UgQ3PDs2vDoXM=?= To: , , CC: =?utf-8?b?QmVuY2UgQ3PDs2vDoXM=?= , "Kamel Bouhara" , William Breathitt Gray , Subject: [PATCH v6 0/3] microchip-tcb-capture: Add Capture, Compare, Overflow etc. events Date: Thu, 27 Feb 2025 15:40:17 +0100 Message-ID: <20250227144023.64530-1-csokas.bence@prolan.hu> X-Mailer: git-send-email 2.48.1 MIME-Version: 1.0 X-ESET-AS: R=OK;S=0;OP=CALC;TIME=1740667258;VERSION=7985;MC=1480940311;ID=1459460;TRN=0;CRV=0;IPC=;SP=0;SIPS=0;PI=3;F=0 X-ESET-Antispam: OK X-EsetResult: clean, is OK X-EsetId: 37303A2980D94852637760 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_064100_458840_8F3F050E X-CRM114-Status: UNSURE ( 7.06 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The TCB has three R/W-able "general purpose" hardware registers: RA, RB and RC. The hardware is capable of: * sampling Counter Value Register (CV) to RA/RB on a trigger edge * sending an interrupt of this change * sending an interrupt on CV change due to trigger * triggering an interrupt on CV compare to RC * stop counting after sampling to RB To enable using these features in user-space, an interrupt handler was added, generating the necessary counter events. On top, RA/RB registers are added as Count Extensions. To aid interoperation, a uapi header was also added, containing the various numeral IDs of the Extensions, Event channels etc. Bence Csókás (3): include: uapi: counter: Add microchip-tcb-capture.h counter: microchip-tcb-capture: Add IRQ handling counter: microchip-tcb-capture: Add capture extensions for registers RA/RB MAINTAINERS | 1 + drivers/counter/microchip-tcb-capture.c | 131 ++++++++++++++++++ .../linux/counter/microchip-tcb-capture.h | 49 +++++++ 3 files changed, 181 insertions(+) create mode 100644 include/uapi/linux/counter/microchip-tcb-capture.h