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[23.128.96.18]) by mx.google.com with ESMTP id q3si1652438edn.37.2021.01.27.13.29.17; Wed, 27 Jan 2021 13:29:42 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231629AbhA0Gsy convert rfc822-to-8bit (ORCPT + 99 others); Wed, 27 Jan 2021 01:48:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232582AbhA0Gpp (ORCPT ); Wed, 27 Jan 2021 01:45:45 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2945CC0613D6 for ; Tue, 26 Jan 2021 22:45:05 -0800 (PST) Received: from pty.hi.pengutronix.de ([2001:67c:670:100:1d::c5]) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l4eZW-0004fd-O8; Wed, 27 Jan 2021 07:44:58 +0100 Received: from ore by pty.hi.pengutronix.de with local (Exim 4.89) (envelope-from ) id 1l4eZV-0006BJ-VI; Wed, 27 Jan 2021 07:44:57 +0100 Date: Wed, 27 Jan 2021 07:44:57 +0100 From: Oleksij Rempel To: Marc Kleine-Budde Cc: Rob Herring , William Breathitt Gray , devicetree@vger.kernel.org, linux-iio@vger.kernel.org, Robin van der Gracht , linux-kernel@vger.kernel.org, Pengutronix Kernel Team , David Jander Subject: Re: [PATCH v4 0/2] add support for GPIO based counter Message-ID: <20210127064457.qyal6jli5qj52ovx@pengutronix.de> References: <20210126131239.8335-1-o.rempel@pengutronix.de> <84d94006-44d3-70ac-2054-2419b0555a87@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: <84d94006-44d3-70ac-2054-2419b0555a87@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Uptime: 07:43:19 up 55 days, 20:49, 25 users, load average: 0.06, 0.05, 0.07 User-Agent: NeoMutt/20170113 (1.7.2) X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::c5 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 26, 2021 at 02:18:34PM +0100, Marc Kleine-Budde wrote: > On 1/26/21 2:12 PM, Oleksij Rempel wrote: > > changes v4: > > - use IRQ_NOAUTOEN to not enable IRQ by default > > - rename gpio_ from name pattern and make this driver work any IRQ > > source. > > > > changes v3: > > - convert counter to atomic_t > > What's the guaranteed width of atomic_t? IIRC a long time ago it was 24 bit only.... 32 bits. The counter is wrapped after 4294967295 Regards, Oleksij -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |