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Wed, 21 Oct 2026 10:16:57 -0700 (PDT) Received: from google.com ([2a00:79e0:2ebe:8:92d1:8038:c4e7:1f0c]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-36740cca3d8sm8748248eec.14.2026.10.21.10.16.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Oct 2026 10:16:56 -0700 (PDT) Date: Wed, 21 Oct 2026 10:16:53 -0700 From: Dmitry Torokhov To: Arnd Bergmann Cc: Bartosz Golaszewski , Andy Shevchenko , Linus Walleij , linux-input@vger.kernel.org, "open list:GPIO SUBSYSTEM" , linux-kernel@vger.kernel.org, Hans de Goede Subject: Re: [PATCH 3/3] Input: soc_button_array - convert to software nodes Message-ID: References: <20261021015004.1537738-1-dmitry.torokhov@gmail.com> <20261021015004.1537738-3-dmitry.torokhov@gmail.com> <9496ea3b-563f-4517-86d6-e20694e2ec9b@app.fastmail.com> X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9496ea3b-563f-4517-86d6-e20694e2ec9b@app.fastmail.com> On Wed, Oct 21, 2026 at 07:02:32PM +0200, Arnd Bergmann wrote: > On Wed, Oct 21, 2026, at 18:56, Dmitry Torokhov wrote: > > On Wed, Oct 21, 2026 at 05:11:32AM -0500, Bartosz Golaszewski wrote: > >> > > >> > - *gpio_ret = desc_to_gpio(desc); > >> > + gdev = gpiod_to_gpio_device(desc); > >> > + fwnode = dev_fwnode(gpio_device_to_device(gdev)); > >> > + if (!fwnode) { > >> > + gpiod_put(desc); > >> > + return -ENODEV; > >> > + } > >> > + > >> > + *gpio_ref = SOFTWARE_NODE_REFERENCE(fwnode, gpiod_hwgpio(desc), > >> > + active_low ? GPIO_ACTIVE_LOW : > >> > + GPIO_ACTIVE_HIGH); > >> > >> Sigh... I hate it and it looks hacky but I also don't have a better idea. :( > > > > Thanks, that is quite common reaction to the code I write ;) > > When I looked at this one in the past, the only other idea I had was to > completely separate it from the regular gpio_keys driver and just make > it a separate input driver. I think that would make this driver a bit > cleaner, but it would also require a bit of code duplication and I > can't tell if that is worth it. Yes, I had the same idea and tried doing this. And pretty much ended duplicating gpio-keys in soc-button-array... Thanks. -- Dmitry