linux-kernel - Re: [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies

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Date:	Wed, 16 Sep 2015 16:57:28 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Nishanth Menon <nm@...com>
Cc:	Benoît Cousson <bcousson@...libre.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH] ARM: dts: am57xx-beagle-x15: Update Phy supplies

* Nishanth Menon <nm@...com> [150916 08:15]:
> Hi Tony,
> 
> On 09/03/2015 02:23 PM, Nishanth Menon wrote:
> > Originally, all the SoC PHY rails were supplied by LDO3. However, as a
> > result of characterization, it was determined that this posed a risk in
> > extreme load  conditions. Hence the PHY rails are split between two
> > different LDOs. Update the related node as a result
> > 
> > LDO3/VDDA_1V8_PHYA supplies vdda_usb1, vdda_usb2, vdda_sata, vdda_usb3
> > LDO4/VDDA_1V8_PHYB supplies vdda_pcie1, vdda_pcie0, vdda_hdmi, vdda_pcie
> > 
> > NOTE: We break compatibility with pre-production boards with this change
> > since, the PMIC LDO4 is disabled at OTP level.
> > 
> > The new configuration is the plan of record and all pre-production
> > boards are supposed to be replaced with the latest boards matching the
> > mentioned configuration.
> > 
> > Signed-off-by: Nishanth Menon <nm@...com>
> > ---
> 
> Gentle ping. Some very few 10 something boards have been created and
> stopped production till the latest modifications were done (PMIC USB
> interrupt, LDO4 etc) - and all of those boards are now getting
> scrapped.. If there are any (as per tracking information, there should
> not be any), TI should be contacted to have them replaced.

Sounds OK to me as they are TI internal protos.
 
> Is it possible for us to consider this patch in 4.3 cycle - given that
> we are this close, might have been great to see 4.3 vanilla function on
> the production platform.

Applying into omap-for-v4.3/fixes thanks.

Tony
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