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swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Revision 2b6c53b1504865728a6dfad3e720918a2f89f3a5 authored by Jon Medhurst (Tixy) on 20 August 2014, 12:41:04 UTC, committed by Tomi Valkeinen on 26 August 2014, 09:50:27 UTC 
video: ARM CLCD: Fix calculation of bits-per-pixel
 
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>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
1 parent 754d561
History
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
Tip revision: a4412fd
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