linux-kernel - Re: [PATCH v10 0/3] Support pwm/tach driver for aspeed ast26xx

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Message-ID: <3d9e50db-19f0-43b3-8042-2f80a1e7b79e@linaro.org>
Date:   Tue, 7 Nov 2023 11:42:54 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Billy Tsai <billy_tsai@...eedtech.com>, jdelvare@...e.com,
        linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, joel@....id.au, andrew@...id.au,
        corbet@....net, thierry.reding@...il.com,
        u.kleine-koenig@...gutronix.de, p.zabel@...gutronix.de,
        naresh.solanki@...ements.com, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-pwm@...r.kernel.org,
        BMC-SW@...eedtech.com, patrick@...cx.xyz
Subject: Re: [PATCH v10 0/3] Support pwm/tach driver for aspeed ast26xx

On 07/11/2023 11:39, Billy Tsai wrote:
> Unlike the old design that the register setting of the TACH should based
> on the configure of the PWM. In ast26xx, the dependency between pwm and
> tach controller is eliminated and becomes a separate hardware block. One
> is used to provide pwm output and another is used to monitor the frequency
> of the input. This driver implements them by exposing two kernel
> subsystems: PWM and HWMON. The PWM subsystem can be utilized alongside
> existing drivers for controlling elements such as fans (pwm-fan.c),
> beepers (pwm-beeper.c) and so on. Through the HWMON subsystem, the driver
> provides sysfs interfaces for fan.
> 
> Changes since v9:
> Change the type of fan-driving-mode to string
> Fix some typos and formatting issues.

Please run scripts/checkpatch.pl and fix reported warnings. Some
warnings can be ignored, but the code here looks like it needs a fix.
Feel free to get in touch if the warning is not clear.

Best regards,
Krzysztof