From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] video: ARM CLCD: Fix calculation of bits-per-pixel
Date: Tue, 26 Aug 2014 09:52:16 +0000 [thread overview]
Message-ID: <53FC58D0.6080700@ti.com> (raw)
In-Reply-To: <1408538464.3858.43.camel@linaro1.home>
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On 20/08/14 15:41, Jon Medhurst (Tixy) wrote:
> If the device-tree specifies a max-memory-bandwidth property then the
> CLCD driver uses that to calculate the bits-per-pixel supported,
> however, this calculation is faulty for two reasons.
>
> 1. It doesn't ensure that the result is a sane value, i.e. a power of 2
> and <= 32 as the rest of the code assumes.
>
> 2. It uses the displayed resolution and calculates the average bandwidth
> across the whole frame. It should instead calculate the peak
> bandwidth based on the pixel clock.
>
> This patch fixes both the above.
>
> Signed-off-by: Jon Medhurst <tixy@linaro.org>
Thanks, queued for 3.17 fbdev fixes.
Tomi
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prev parent reply other threads:[~2014-08-26 9:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-20 12:41 [PATCH v2] video: ARM CLCD: Fix calculation of bits-per-pixel Jon Medhurst (Tixy)
2014-08-20 13:03 ` Pawel Moll
2014-08-26 9:52 ` Tomi Valkeinen [this message]
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