From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751501AbdJRSgY (ORCPT ); Wed, 18 Oct 2017 14:36:24 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:58338 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750800AbdJRSgX (ORCPT ); Wed, 18 Oct 2017 14:36:23 -0400 Date: Wed, 18 Oct 2017 20:35:51 +0200 (CEST) From: Thomas Gleixner To: Benjamin Gaignard cc: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, daniel.lezcano@linaro.org, ludovic.barre@st.com, julien.thierry@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 3/5] clocksource: stm32: only use 32 bits timers In-Reply-To: <1508331506-23782-4-git-send-email-benjamin.gaignard@linaro.org> Message-ID: References: <1508331506-23782-1-git-send-email-benjamin.gaignard@linaro.org> <1508331506-23782-4-git-send-email-benjamin.gaignard@linaro.org> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 18 Oct 2017, Benjamin Gaignard wrote: > 16 bits hardware are not enough accure to be used. That should probably read: 16 bit counters are not accurate enough to be used. Right? > Do no allow them to be probed by tested max counter value. I really do not understand why you want to do this. Accuracy is not really a reason to dismiss working hardware right away. What you can do is to lower the rating so other eventually available hardware will be preferred. I might be missing something, but if so this is obviously missing in the changelog. Thanks, tglx