linux-kernel - Re: [PATCH v1 2/2] Add PWM driver for LGM

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Message-ID: <20200527091521.GH1634618@smile.fi.intel.com>
Date:   Wed, 27 May 2020 12:15:21 +0300
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     "Tanwar, Rahul" <rahul.tanwar@...ux.intel.com>
Cc:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, thierry.reding@...il.com,
        p.zabel@...gutronix.de, linux-pwm@...r.kernel.org,
        robh+dt@...nel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, songjun.Wu@...el.com,
        cheol.yong.kim@...el.com, qi-ming.wu@...el.com
Subject: Re: [PATCH v1 2/2] Add PWM driver for LGM

On Wed, May 27, 2020 at 02:28:53PM +0800, Tanwar, Rahul wrote:
> On 22/5/2020 4:56 pm, Uwe Kleine-König wrote:
> > On Fri, May 22, 2020 at 03:41:59PM +0800, Rahul Tanwar wrote:

...

> > I'm a unhappy to have this in the PWM driver. The PWM driver is supposed
> > to be generic and I think this belongs into a dedicated driver.
> 
> Well noted about all other review concerns. I will rework the driver in v2.
> However, i am not very sure about the above point - of having a separate
> dedicated driver for tach_work because its logic is tightly coupled with
> this driver.

Actually I agree with Uwe.
Here is layering violation, i.e. provider and consumer in the same pot. It's
not good from design perspective.

-- 
With Best Regards,
Andy Shevchenko