linux-kernel - Re: [PATCH] media: ov5640: Fix set 15fps regression

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Date:   Fri, 25 Jan 2019 16:39:58 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Steve Longerbeam <slongerbeam@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Jacopo Mondi <jacopo+renesas@...ndi.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-amarula@...rulasolutions.com
Subject: Re: [PATCH] media: ov5640: Fix set 15fps regression

On Thu, Jan 24, 2019 at 11:28:01PM +0530, Jagan Teki wrote:
> The ov5640_try_frame_interval operation updates the FPS as per user
> input based on default ov5640_frame_rate, OV5640_30_FPS which is failed
> to update when user trigger 15fps.
> 
> So, initialize the default ov5640_frame_rate to OV5640_15_FPS so-that
> it can satisfy to update all fps.
> 
> Fixes: 5a3ad937bc78 ("media: ov5640: Make the return rate type more explicit")
> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>

I'm pretty sure I tested this and it was working fine. You're
mentionning a regression, but what regression is there exactly (ie,
what was working before that commit that doesn't work anymore?). What
tools/commands are you using to see this behaviour?

It really isn't obvious from your patch and the patch you mention what
could go wrong or be improved.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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