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 B6E661F37CE; Tue, 4 Mar 2025 09:54:02 +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=1741082042; cv=none; b=JT7VpBhyz5B++5XzirDO47DenaeJSRSsYOjgLa9ArkmjpSoHiTb1UsyNAOqUahFPUJYKRJ/ZhprHZyJYDyk4Zdp+MqPUaijtl0JPytCymnuGxBPyUdvRWdDzJfvBCNeEezVw/dtMmp7aMYOppQ18YdQI+ICh/+PRez7/Pd4lQcg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741082042; c=relaxed/simple; bh=rKQJPmc4t9cLCPtNb/ynBMmWqqSyhN+Gj4ElMGoFcik=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Zq3lcA11NkBJFH+/FHNBJNe2a4rBPhqVVuqn3UeID4gkGBmAuoz5tdBxtiWN/e8w4WEhAStae/cCYJmoWYXJpjQ/pfxsGNfs5paAduNESDNwl6p6tVXSiGxx2SuscQ1oaN0y8qqAl2cIIywlal/iCD44oBz+CUvfKZkESHkWMb8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=p44n2U0m; 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="p44n2U0m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95C65C4CEE5; Tue, 4 Mar 2025 09:53:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741082042; bh=rKQJPmc4t9cLCPtNb/ynBMmWqqSyhN+Gj4ElMGoFcik=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=p44n2U0mJDtJvD+ANxHQpsuTDcVydK50y6LZSPcNEsmqaL/RQMUDikht83eImLorf OCNFTBXD/aMgoYfDkHXlFuacrmltjI4039FuX2NxOD+mbx9USJNbZ8QLo594Nnbfam Jkj20hUG0LFqXWSLbu5CcScoJoFTUu/8FIkBnZoWMEncAWgBL/fNvJxjBTMfPlJbeE EsBovuN2qDq7Yg5Z7fnN57BjDlP95TZL+4qd53cy5tNTroOjM/j0CaRTsGRp7H6RK9 fgj4e3W+WhrisFYDxg2U7R/VFccZdNHMwtrb0du8qw0QGxcqbAeAwvGkyi78KG2qSC plUiHGYwIQzEg== Message-ID: Date: Tue, 4 Mar 2025 10:53:53 +0100 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 RFC] leds: rgb: leds-qcom-lpg: Compute PWM value based on period instead To: =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= , Abel Vesa Cc: Lee Jones , Pavel Machek , Anjelique Melendez , Kamal Wadhwa , Jishnu Prakash , Bjorn Andersson , Konrad Dybcio , Johan Hovold , Sebastian Reichel , Pavel Machek , linux-leds@vger.kernel.org, linux-pwm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250303-leds-qcom-lpg-compute-pwm-value-using-period-v1-1-833e729e3da2@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 04/03/2025 07:24, Uwe Kleine-König wrote: > instead which gives you a more exact result. The challenge here however > is that the multiplication might overflow. If you know that the result > fits into a u64, mul_u64_u64_div_u64() is the function that gets this > right for you. > >> chan->pwm_value = min(val, max); >> } >> [...] >> --- >> base-commit: 0067a4b21c9ab441bbe6bf3635b3ddd21f6ca7c3 > > My git repo doesn't know that commit. Given that you said your patch > bases on that other series, this isn't surprising. Please use a publicly > available commit as base parameter, otherwise you (and I) don't benefit > from the armada of build bots because they just silently fail to test in As you can easily see in the signature, this patchset was generated by b4 and such tag was added automatically. No point in stripping it even if it is not useful (life, happens). In the same time the dependency, so the base of this patchset, is explained in the changelog, exactly in the place where it should be. Exactly how we all want. I don't understand what you are poking now. This is exactly the process how to send an RFC, which you can find in "[PATCH RFC]" subject, based on some other work in flight/progress. This is basically an exemplary patch how to do this. You cannot do it better. Best regards, Krzysztof