linux-kernel - Re: [PATCH V2 2/6] pwm: sprd: Improve the pwm backlight control function

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Message-ID: <tbtq2rtixo2dkfeuainsjzhymehkym3zvrjuh6hrpg6znnbyzg@ppl4ztw2t2bh>
Date: Thu, 25 Jan 2024 22:13:34 +0100
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: Wenhua Lin <Wenhua.Lin@...soc.com>
Cc: Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Orson Zhai <orsonzhai@...il.com>, Baolin Wang <baolin.wang@...ux.alibaba.com>, 
	Chunyan Zhang <zhang.lyra@...il.com>, linux-pwm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, wenhua lin <wenhua.lin1994@...il.com>, 
	Xiongpeng Wu <xiongpeng.wu@...soc.com>, zhaochen su <zhaochen.su29@...il.com>, 
	Zhaochen Su <Zhaochen.Su@...soc.com>, Xiaolong Wang <Xiaolong.Wang@...soc.com>
Subject: Re: [PATCH V2 2/6] pwm: sprd: Improve the pwm backlight control
 function

Hello,

On Thu, Jan 25, 2024 at 10:55:29AM +0800, Wenhua Lin wrote:
> The pwm-sprd driver support only 8-bit linear control of backlight. Now,
> new requests of supporting 9-bit, 10-bit, 11-bit and 12-bit linear
> control of backlight are proposed.

I would expect that you can determine a sensible value for mod at
runtime. Also adding this to the device tree isn't hardware description,
is it?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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