From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH 2/2] ARM: dts: am335x: Replaced register offsets with defines Date: Thu, 14 Mar 2019 09:12:33 -0700 Message-ID: <20190314161233.GD19425@atomide.com> References: <20190313142724.27446-1-cquast@hanoverdisplays.com> <20190313142724.27446-3-cquast@hanoverdisplays.com> <20190314150524.GB19425@atomide.com> <4FA4A861EC9F6744BE8446EF2CDFAFE11FF8885D@mail.hanover.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4FA4A861EC9F6744BE8446EF2CDFAFE11FF8885D@mail.hanover.local> Sender: linux-kernel-owner@vger.kernel.org To: Christina Quast Cc: "bcousson@baylibre.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "mpfj@newflow.co.uk" , "linux-omap@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" List-Id: linux-omap@vger.kernel.org * Christina Quast [190314 16:03]: > On 14/03/2019 16:05, Tony Lindgren wrote: > > * Christina Quast [190313 14:28]: > >> The defines are taken from dt-bindings/pinctrl/am335x.h > >> > >> Updated AM33XX_IOPAD to take three instead of two parameters: > >> AM33XX_IOPAD(register_offset, pin_direction_pullups, mux_mode) > > Thanks that works great for making things work eventually > > with #pinctrl-cells = <2> :) > > > >> + AM33XX_IOPAD(AM335X_PIN_UART1_RXD, PIN_INPUT, MUX_MODE0) /* uart1_rxd */ > >> + AM33XX_IOPAD(AM335X_PIN_UART1_TXD, PIN_INPUT, MUX_MODE0) /* uart1_txd * > > Since it sounds like you're modifying these with a script, > Who would do such a change by hand, anyways? That's too error-prone! Right :) > > just leave out any nop comments while at it where the comment > > is just the pad name already there in the new register > > define. Some comments might need to be preserved, but my > > guess is that they're mostly just the pad name. > > > > And I suggest you split this change to a seprate patch > > for each board so in case of trouble we can revert the > > changes for a single board if needed. > Is it really useful to have a change per board? Once the AM33XX_IOPAD > macro is changed and takes 3 arguments instead of 2, the old boards will > not compile anymore anyways. That's a good point. How about use some different name for the new macro? Something like AM33XX_PADCONF maybe? Note that there is a huge number of out-of-tree board specific dts files for various devices. So let's also keep the old macro for now. We could make produce a warning, then we can drop it later on few merge cycles later. Regards, Tony