From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5854A14E2C2; Sat, 11 Jan 2025 10:56:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736592972; cv=none; b=QfwKSpsPX2lZAFOo/5uo5rh3ggXPbNFeHbNjYVIXQZ1+JEtTUkdQ2Plj9WnDQ7nHlmofMwvTcSW4MKI7bdq9mDJFKpP5Lc6GB5ncOZCo8cOQN3I/fv/0uw8zOP3rjy78cktFqc35Xwti7xBVbHdZTWioQbObvUJi0T8mObqLLys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736592972; c=relaxed/simple; bh=t4awZR4yoBZ9BIa6hLUNYMIX2g00LtrbAKm2XM1Jqjw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pEorSXowRAHbIKoHu68XGajf9Ar088LX+QY5Z88xyUc9yVPbKhT9UJ2nYKcZA9oBL4qhEcVzAPglXb7nrjNsgCJM6/XqnNKHgOVJxmenXyTvniN1qjaWyUOOSDjuN1vhD1V4Rv9bEw/F1t2wIPLaHsM3nWkN10Wf/+ZmPZ0eAZM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HMsqKf7p; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HMsqKf7p" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11915C4CED2; Sat, 11 Jan 2025 10:56:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736592972; bh=t4awZR4yoBZ9BIa6hLUNYMIX2g00LtrbAKm2XM1Jqjw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=HMsqKf7p4UDr8grLVWeioJ2dDyzEgAnw1Xwu/7BZW3XZPexzy5fTX7OYoRGJjDT4V JhdLOjqD5ucMacf3Yloh8krikTSDTszoHpadxa8NNYf5hVIyxFjoXYPESOelO/Z2XE S6872DBX0HnxyJpun39SKF1GLHWbZMa0B8kRZQm9dnbA8wdqro5TMFlmz5SxTo54Jp aZYDeWWhiL59KlIj/nZ8JO5VkU7FrXNh+X0iQEDINjTJGtgp7Wex98XIfjysYEJYBM AfD4pk8/LPW4EX3lKAQ0PJR7UaLfS/4PRT7aqjkhxAFDFQ1AXsNLDo7JsNiJHXeFAc CnuabeAg6fr9A== Message-ID: <75cf4aa1-e9ab-4c61-a577-b7b866f161c7@kernel.org> Date: Sat, 11 Jan 2025 11:56:05 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] gpio: 74x164: use a compatible fallback and don't extend the driver To: =?UTF-8?B?Q3PDs2vDoXMgQmVuY2U=?= , Bartosz Golaszewski , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Ripard , =?UTF-8?B?SiAuIE5ldXNjaMOkZmVy?= , "Geert Uytterhoeven via gmail . com" Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski References: <20250110130025.55004-1-brgl@bgdev.pl> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 10/01/2025 14:32, Csókás Bence wrote: > Hi, > > On 2025. 01. 10. 14:00, Bartosz Golaszewski wrote: >> From: Bartosz Golaszewski >> >> There were other suggested solutions (for instance: just use the >> existing compatible for the On Semi variant) but I figured the most >> common approach is to use a fallback value for 100% compatible models >> and this is what Rob suggested as well. >> >> This reverts the driver change and makes the "onnn,74hc595a" compatible >> use "fairchild,74hc595" as fallback. > > Is there any reason to introduce a new compatible name at all? Does some Yes, DT bindings preference, see writing bindings. I assume of course this is a separate device. You cannot use other compatible "foo" for some other device "bar". Best regards, Krzysztof