linux-kernel - Re: [PATCH v2 2/2] i2c: eg20t: use generic power management

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Message-ID: <20200810140142.GB3923@kunai>
Date:   Mon, 10 Aug 2020 16:01:42 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Vaibhav Gupta <vaibhavgupta40@...il.com>
Cc:     Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Vaibhav Gupta <vaibhav.varodek@...il.com>,
        Tomoya MORINAGA <tomoya-linux@....okisemi.com>,
        Tomoya MORINAGA <tomoya.rohm@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ben Dooks <ben.dooks@...ethink.co.uk>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2 2/2] i2c: eg20t: use generic power management

On Thu, Aug 06, 2020 at 01:06:16AM +0530, Vaibhav Gupta wrote:
> Drivers using legacy power management .suspen()/.resume() callbacks
> have to manage PCI states and device's PM states themselves. They also
> need to take care of standard configuration registers.
> 
> Switch to generic power management framework using a single
> "struct dev_pm_ops" variable to take the unnecessary load from the driver.
> This also avoids the need for the driver to directly call most of the PCI
> helper functions and device power state control functions, as through
> the generic framework PCI Core takes care of the necessary operations,
> and drivers are required to do only device-specific jobs.
> 
> Signed-off-by: Vaibhav Gupta <vaibhavgupta40@...il.com>

Applied to for-next, thanks!


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