Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935590AbcJUPrx convert rfc822-to-8bit (ORCPT ); Fri, 21 Oct 2016 11:47:53 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:47249 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934263AbcJUPrw (ORCPT ); Fri, 21 Oct 2016 11:47:52 -0400 Message-ID: <1477064863.2508.26.camel@pengutronix.de> Subject: Re: [PATCH v4 00/23] soc: renesas: Add R-Car RST driver for obtaining mode pin state From: Philipp Zabel To: Geert Uytterhoeven Cc: Michael Turquette , Stephen Boyd , Simon Horman , Magnus Damm , devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Date: Fri, 21 Oct 2016 17:47:43 +0200 In-Reply-To: <1477064730.2508.24.camel@pengutronix.de> References: <1477055857-17936-1-git-send-email-geert+renesas@glider.be> <1477064730.2508.24.camel@pengutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Mailer: Evolution 3.12.9-1+b1 Mime-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:96de:80ff:fec2:9969 X-SA-Exim-Mail-From: p.zabel@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 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 29 Am Freitag, den 21.10.2016, 17:45 +0200 schrieb Philipp Zabel: > A. Hi Geert, > > Am Freitag, den 21.10.2016, 15:17 +0200 schrieb Geert Uytterhoeven: > > Hi Philipp, Mike, Stephen, Simon, Magnus, > > (see questions *** below!) > > > > Currently the R-Car Clock Pulse Generator (CPG) drivers obtains the > > state of the mode pins either by a call from the platform code, or > > directly by using a hardcoded register access. This is a bit messy, and > > creates a dependency between driver and platform code. > > > > This patch series converts the various Renesas R-Car clock drivers > > and support code from reading the mode pin states using a hardcoded > > register access to using a new minimalistic R-Car RST driver. > > > > All R-Car clock drivers will rely on the presence in DT of a device node > > for the RST module. Backwards compatibility with old DTBs is retained > > only for R-Car Gen2, which has fallback code using its own private copy > > of rcar_gen2_read_mode_pins(). > > I think you should add a binding doc even though the DT bindings are > still trivial. Disregard that, I literally sent this mail and a second later noticed patch 1 for the first time. regards Philipp