linux-kernel - Re: [PATCH] ARM: dts: omap5-igep0050: Correct hdmi regulator

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Date:	Mon, 9 May 2016 11:34:38 +0300
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>,
	Tony Lindgren <tony@...mide.com>, Nishanth Menon <nm@...com>
CC:	<linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	Enric Balletbo i Serra <eballetbo@...ebcn.com>,
	Agustí Fontquerni <af@...ebcn.com>,
	Eduard Gavin <egavin@...ebcn.com>
Subject: Re: [PATCH] ARM: dts: omap5-igep0050: Correct hdmi regulator


On 09/05/16 11:25, Peter Ujfalusi wrote:

> Tomi: what do you think?
> 
> According to the OMAP5 data manual the vdda_hdmi can be in 1.5V or 1.8V mode,
> 2V is not mentioned in the recommended operating conditions table.

I thought vdda_hdmi should always be 1.8V, but you're right, on omap5
1.5V is allowed according to DM. On later SoCs it's only 1.8V. I suggest
we use 1.8V on all boards, as that's what's known to work.

2V is definitely wrong.

 Tomi



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