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 42B2324BBF4; Mon, 23 Mar 2026 15:04:07 +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=1774278247; cv=none; b=V4xPCP0/tBccd3CXtPc23Lv0OO6unK2jAPacJ2h0yQOgw/2YrfdLcVCNob78yGFQe9YJOuwtaZQJBYDQvfdsh3s5bkxzauoY2F0A/Nb+13Ahw5bkG3DdCoP35C/EO5/1m5040QyjoLaaRBNjJO5f5OMpg40b8ZC+rbRvVeMnRlQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774278247; c=relaxed/simple; bh=j9SphybXpKQs+tI6PSVAGnhieEiNqTo0QXGtRvMwmyM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=dfaQ416fNwTr7AYjSzOHXZdlQSwnMU8jJx5EC2RcxWrh7cI3u61dLORDyqmtCQ1rH3puqPhoO33LayRMjVQi4wyo+i61FQNDbOsqyHz8RGtonRJcRAJ3pmPU4FyM/Jj5GBkohnmWlRuI9xkk/lndEMKMngSXIx1N/h1+6S51TuA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ku4j63ah; 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="ku4j63ah" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4FCA8C4CEF7; Mon, 23 Mar 2026 15:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774278246; bh=j9SphybXpKQs+tI6PSVAGnhieEiNqTo0QXGtRvMwmyM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ku4j63ah1DrGz3m2j8QJjg61/cnjW541UAT1TWbV5/IbTw4l54NZK4IyR6zo1cDw2 WOczNLlfYFW0XPrvToHvinw1dCLywmHS/car6wGIh4YJ2QUCtXezuuWUbvRk+Jhg9m ne79QgG9564doViJczJ4VRV6KlnC912QFn7uqEfGCS2TRobLEmDr66nOIdnnLmFjzz OLoaX0waWXlga39Bchlmgg/nsPpVSMkcbpsW4CVO/nQPbP9/2liiCs529yeWs24Pcn k1CK1g82jIeVaUaGJJqPekZZD6DjqHNEGKtZVHHpxI6KYOP5/75bJsg7ePV7jVPYk9 JOvo6Rx63SwyA== Message-ID: <66ff573d-2b93-4e7c-bbb1-3ac0536ccdc5@kernel.org> Date: Mon, 23 Mar 2026 16:04:03 +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 1/2] dt-bindings: pwm: Document Tegra194 and Tegra264 controllers To: Thierry Reding Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jon Hunter , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org References: <20260320234056.2579010-1-thierry.reding@kernel.org> <20260321-lurking-courageous-centipede-5e82cb@quoll> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 23/03/2026 15:50, Thierry Reding wrote: > On Sat, Mar 21, 2026 at 11:49:08AM +0100, Krzysztof Kozlowski wrote: >> On Sat, Mar 21, 2026 at 12:40:55AM +0100, Thierry Reding wrote: >>> From: Thierry Reding >>> >>> The PWM controller found on Tegra264 is largely compatible with the one >>> on prior generations, but it comes with some extra features, hence a new >>> compatible string is needed. >>> >>> Signed-off-by: Thierry Reding >>> --- >>> Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.yaml | 2 ++ >>> 1 file changed, 2 insertions(+) >> >> Where is the driver patch? Why this is not being part of driver >> submission (see also submitting bindings DT in description how patches >> should be sent)? > > I don't see anything in the documentation about a requirement for driver > patches to be included. It does indicate what the ordering of patches > should be if driver code is included, but doesn't specifically say that It does. Explicitly: 3) For a series going through multiple trees, the binding patch should be kept with the driver using the binding. > driver code must accompany binding updates. And you have entire cover letter to explain that... > > Nor do I understand why it should be needed. I do understand why you It's not needed. It is just odd not to have it here. > would want to have driver code to go along with a completely new binding > but in cases like this where we're really only adding a new compatible > string to an otherwise unmodified binding, I don't see any advantage in > having to put both together. And the problem appeared later - the driver was posted separately without the binding. That's a no go and really odd process. For the other patches you have without drivers, it would be fine. And you would not get questions if it was explained. Best regards, Krzysztof