linux-kernel - Re: [PATCH] simplefb: Disable and release clocks and regulators in destroy callback

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Message-ID: <4f60733b-9ec0-ff8a-638e-50d06a2a9de2@ti.com>
Date:   Tue, 27 Sep 2016 11:22:14 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     Chen-Yu Tsai <wens@...e.org>, Hans de Goede <hdegoede@...hat.com>,
        Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
CC:     <linux-fbdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] simplefb: Disable and release clocks and regulators in
 destroy callback

On 07/09/16 12:09, Chen-Yu Tsai wrote:
> simplefb gets unregister when a proper framebuffer driver comes in and
> kicks it out. However the claimed clocks and regulators stay enabled
> as they are only released in the platform device remove function, which
> in theory would never get called.
> 
> Move the clock/regulator cleanup into the framebuffer destroy callback,
> which gets called as part of the framebuffer unregister process.
> 
> Note this introduces asymmetry in how the resources are claimed and
> released.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> ---
>  drivers/video/fbdev/simplefb.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Thanks, queued for 4.9.

 Tomi



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