From: Shawn Guo <shawnguo@kernel.org>
To: Anson.Huang@nxp.com
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
s.hauer@pengutronix.de, linux-kernel@vger.kernel.org,
robh+dt@kernel.org, Linux-imx@nxp.com, kernel@pengutronix.de,
festevam@gmail.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: dts: imx7d-sdb: Make SW2's voltage fixed
Date: Wed, 5 Jun 2019 17:17:01 +0800 [thread overview]
Message-ID: <20190605091659.GM29853@dragon> (raw)
In-Reply-To: <20190529065056.27516-1-Anson.Huang@nxp.com>
On Wed, May 29, 2019 at 02:50:56PM +0800, Anson.Huang@nxp.com wrote:
> From: Anson Huang <Anson.Huang@nxp.com>
>
> On i.MX7D SDB board, SW2 supplies a lot of peripheral devices,
> its voltage should be fixed at 1.8V. The commit 43967d9b5a7c
> ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs")
> assigns SW2 as the supplier of vdd1p0d, and when its comsumers
> pcie-phy/mipi-phy try to set the vdd1p0d to 1.0V, regulator core
> will also set SW2 to its best(min) voltage to 1.5V, and it will
> lead to board reset.
>
> This patch makes SW2's voltage fixed at 1.8V to avoid this issue.
>
> Fixes: 43967d9b5a7c ("ARM: dts: imx7d-sdb: Assign corresponding power supply for LDOs")
> Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Applied, thanks.
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prev parent reply other threads:[~2019-06-05 9:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-29 6:50 [PATCH] ARM: dts: imx7d-sdb: Make SW2's voltage fixed Anson.Huang
2019-05-29 10:25 ` Leonard Crestez
2019-06-05 9:17 ` Shawn Guo [this message]
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