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From: "Heiko Stübner" <heiko@sntech.de>
To: agajjar <Akash_Gajjar@mentor.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Oskari Lemmela <oskari@lemmela.net>,
	Shohei Maruyama <cheat.sc.linux@outlook.com>,
	Levin Du <djw@t-chip.com.cn>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] arm64: dts: rockchip: rockpro64 dts remove unused node
Date: Fri, 15 Feb 2019 21:46:03 +0100	[thread overview]
Message-ID: <7155828.jr86DZMtXN@diego> (raw)
In-Reply-To: <ac22440d-3b64-1cf2-205c-52ea7c1c23f9@mentor.com>

Am Freitag, 15. Februar 2019, 13:08:16 CET schrieb agajjar:
> On 2/15/2019 2:48 PM, Heiko Stübner wrote:
> > Am Mittwoch, 13. Februar 2019, 18:06:38 CET schrieb Akash Gajjar:
> >> lcd panel pinmux and vcc1v8_s3 regulator is redundant and has a no
> >> impact,
> >> so removing it.
> >> 
> >> Signed-off-by: Akash Gajjar <Akash_Gajjar@mentor.com>
> 
> Hi Heiko,
> 
> > vcc1v8_s3 is actually also a emmc supply, so I'd like to keep it around
> > for completenes sake.
> 
> Emmc module is supplied by PMIC vcc3v3_s3 (SWITCH_REG1) and vcc_1v8
> (DCD_REG4).
> 
> So I believe removing vcc1v8_s3 has no impact on emmc supply line.

looking at the rockpro64 schematics page 10, I see vcca1v8_s3 linked
to the emmc_vdd_1v8 input and obviously also as reference for the saradc.

So I think we really could keep it around, so that the power-tree resembles
the schematics more.

  reply	other threads:[~2019-02-15 20:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-13 17:06 [PATCH 0/4] arm64: dts: rockchip: rk3399-rockpro64 dts cleanup Akash Gajjar
2019-02-13 17:06 ` [PATCH 1/4] arm64: dts: rockchip: rockpro64 dts make regulator more readable Akash Gajjar
2019-02-15  9:14   ` Heiko Stübner
2019-02-13 17:06 ` [PATCH 2/4] arm64: dts: rockchip: rockpro64 dts remove unused node Akash Gajjar
2019-02-15  9:18   ` Heiko Stübner
2019-02-15 12:08     ` agajjar
2019-02-15 20:46       ` Heiko Stübner [this message]
2019-02-16 15:20         ` agajjar
2019-02-13 17:06 ` [PATCH 3/4] arm64: dts: rockchip: rockpro64 dts rename LED labels and default trigger Akash Gajjar
2019-02-15  9:21   ` Heiko Stübner
2019-02-13 17:06 ` [PATCH 4/4] arm64: dts: rockchip: rockpro64 dts add usb regulator Akash Gajjar
2019-02-15  9:24   ` Heiko Stübner

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