linux-kernel - Re: [PATCH v4 07/26] ARM: pxa: magician: Fix HTC Magician pin mux definitions

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Message-ID: <5611DD36.5030108@tul.cz>
Date:	Mon, 5 Oct 2015 04:15:18 +0200
From:	Petr Cvek <petr.cvek@....cz>
To:	Philipp Zabel <philipp.zabel@...il.com>, robert.jarzmik@...e.fr,
	daniel@...que.org, haojian.zhuang@...il.com, linux@....linux.org.uk
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 07/26] ARM: pxa: magician: Fix HTC Magician pin mux
 definitions

Dne 3.10.2015 v 14:30 Philipp Zabel napsal(a):
> Am Montag, den 28.09.2015, 23:15 +0200 schrieb Petr Cvek:
>> This patch fixes a pin mux for the HTC Magician machine. Wrong and
>> missing
>> definitions caused a bad LCD operation and an unavailability of
>> several
>> peripherals.
>>
>> Signed-off-by: Petr Cvek <petr.cvek@....cz>
> 
> NAK on this one. Until this patch I can boot my o2 Xda mini with
> Toppoly display and see the framebuffer kernel console output. Can we
> split the LCD changes from the rest, I assume those are what breaks my
> display.

I read the Toppoly datasheet and it seems, the LCD panel implements V/HSYNC, while Samsung does not (and I'm sure at least one of these sync pins must be GPIO for DC-DC control). A solution is probably to reconfigure the GPIO muxes by detected LCD type.

> 
> best regards
> Philipp
> 

Petr
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