From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 643C23C3F73; Tue, 18 Aug 2026 08:21:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787041303; cv=none; b=k41kJSnUnU5ygM0hP4r/kQYVao1TAtS1xJuT+ifJnf9Tyx5kteV10QFWOiaASIFv+IJxdJI+YTmMFJxZ3GazoA3E6WzSoJRkHJOxXT3XvjEBW5lwdGDGwh6wqcOErNIaoWygGFexCW3y9icSOS/2MtWMtHNFgcbH23m05UPlW7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787041303; c=relaxed/simple; bh=avgEZybpRnX1lDmXf4xf9W3bbFmJGBLgmAEECzSzIb8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=T6bESIKzBBa2gg4qExnty7lybn3ylymLtfAD+/TEXV0dL6SYS2Mr0BhBF0vpK4D1Bp7Li4Zv1CemEgvANKO1lt8i8S8TkLRYBfJHAiDc6pVXnSQ87dTcX96ajBSbSVET0W40+zf0qhjE6sDuKWC+0tlBIU59tcKDtZvYBy+K/eo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JquHYVlO; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JquHYVlO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4AA181F000E9; Tue, 18 Aug 2026 08:21:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787041302; bh=a1nT/IHafjZAzumOeFkz48q7sbuRo0GyCYBQWAgzHHY=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=JquHYVlOIp8CO/b+FVZhkSXF0A6LTG87gCr9AomMMBc+dA2ek1mZT+jTqNVVUH7R4 kp1WMB3rROKE+iO0Tfr9zegwGAKz0iBoEvY74hNh7hCOe5bDoWFVVEEwwJroObhh5k iUl1i+ohQhYMF6swGgdOC3WXpiyK5Bfab8M/E0KmCake+Uu05Iizo1tdVBU5GXVnuL 4/ZREEo6lP9Ha4Q8r63KRJxoehmXgwtcRHkPg1OR6wmoVxXU8Y3oQb5TZIZM0LPkEL TeyUUnVb87neL3Q4sKKYjb1SEqe0MCLBIpPUCSMZUZED/m+zIf2XgeeO754BRHGwaj Q4yB4RrTCFbDQ== Message-ID: <087f9e9e-afd5-4073-b78d-4131f9b8e4c4@kernel.org> Date: Tue, 18 Aug 2026 10:21:32 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/2] backlight: Add support for Orient Chip OCP8178 To: Wim de With Cc: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller , dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org References: <20260816-ocp8178-backlight-v3-0-caf95c453c50@dewith.io> <20260816-ocp8178-backlight-v3-2-caf95c453c50@dewith.io> <20260818-crazy-corgi-of-sorcery-abaa23@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 18/08/2026 10:19, Wim de With wrote: > On Tue, Aug 18, 2026 at 09:34:14AM +0200, Krzysztof Kozlowski wrote: >> On Sun, Aug 16, 2026 at 12:57:04PM +0200, Wim de With wrote: >>> +static int ocp8178_bl_enable_onewire(struct ocp8178_bl *ocp8178) >>> +{ >>> + u64 start, duration; >>> + >> >> It seems you re-implemented one-wire interface instead of using w1. Why? >> What sort of one-wire bus/interface is this? >> >> Best regards, >> Krzysztof >> > > It's not actually w1, it's just some non-standard protocol that the > vendor confusingly calls '1-Wire' in the datasheet, to distinguish it > from the PWM mode. OK Best regards, Krzysztof