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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: John Stultz <john.stultz@linaro.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	Nicolas Dechesne <nicolas.dechesne@linaro.org>,
	Stephen Boyd <stephen.boyd@linaro.org>,
	Andy Gross <andy.gross@linaro.org>,
	Rob Clark <robdclark@gmail.com>, Vinay Simha <simhavcs@gmail.com>,
	David Brown <david.brown@linaro.org>,
	Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH 2/2] ARM: dts: nexus7: Add regulator tweaks and wcnss entry to support wifi
Date: Sat, 13 May 2017 12:19:41 -0700	[thread overview]
Message-ID: <20170513191941.GZ15143@minitux> (raw)
In-Reply-To: <1494623898-27230-3-git-send-email-john.stultz@linaro.org>

On Fri 12 May 14:18 PDT 2017, John Stultz wrote:

>  				lvs7 {
>  					bias-pull-down;
> +					regulator-always-on;
>  				};

Looking at the downstream regulator definition lvs7 is identified as
"pll_vdd" - which I believe is what Qualcomm abbreviates as "px". It's
supplied by S4 and as such will provide 1.8V to something. So it's quite
likely that I picked the wrong regulator in the dtsi and that this is
the px supply of the wcnss.

Unfortunately I don't have any 8064 device (with wcnss) hooked up and I
can't find any schematics :/

Would you mind changing the riva-pil vddpx-supply to &pm8921_lvs7 and
give this a spin?

Regards,
Bjorn

      reply	other threads:[~2017-05-13 19:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-12 21:18 [RFC][PATCH 0/2] Few DTS changes needed for Nexus7 support John Stultz
2017-05-12 21:18 ` [PATCH 1/2] ARM: dts: qcom-apq8064: Collapse usb support into one node John Stultz
2017-05-14  3:23   ` Bjorn Andersson
2017-05-12 21:18 ` [PATCH 2/2] ARM: dts: nexus7: Add regulator tweaks and wcnss entry to support wifi John Stultz
2017-05-13 19:19   ` Bjorn Andersson [this message]

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