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

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Date:   Tue, 7 Nov 2023 11:02:43 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Billy Tsai <billy_tsai@...eedtech.com>, jdelvare@...e.com,
        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 RESEND v10 0/3] Support pwm/tach driver for aspeed ast26xx

On 11/7/23 02:50, 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.
> 

What is the resend about ?

Guenter