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[24.4.232.171]) by smtp.gmail.com with ESMTPSA id i13-v6sm18153994pgs.51.2018.11.13.07.14.45 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 13 Nov 2018 07:14:46 -0800 (PST) Date: Tue, 13 Nov 2018 07:14:44 -0800 From: Richard Cochran To: Tom Burkart Cc: Linux kernel mailing list Subject: Re: [PATCH v6 2/4] pps: descriptor-based gpio, capture-clear addition Message-ID: <20181113151444.cszd2zdwoast3545@localhost> References: <20181113034007.3878-1-tom@aussec.com> <20181113034007.3878-2-tom@aussec.com> <20181113034007.3878-3-tom@aussec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181113034007.3878-3-tom@aussec.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 13, 2018 at 02:40:05PM +1100, Tom Burkart wrote: > The change from integer based GPIO API to the descriptor based API > breaks backward compatibility for the devicetree. This is due to > the descriptor based API appending "-gpio" or "-gpios" (see > Documentation/gpio/base.txt.) Device tree is a user space facing ABI, and so you must continue to support the legacy binding as well. Thanks, Richard