linux-kernel - Re: [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to 2.8V for MIPI CSI/DSI

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Message-ID: <CAOMZO5BQAigAsPCmzz-b-3wH9eaTmHp=B=d1cxq10pDLOcdsxg@mail.gmail.com>
Date:   Sat, 1 Jul 2017 09:41:33 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     mindentropy <mindentropy@...il.com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ARM: dts: imx7d-sdb: Set VLDO4 outpt to 2.8V for MIPI CSI/DSI

On Sat, Jul 1, 2017 at 4:39 AM, mindentropy <mindentropy@...il.com> wrote:
> From: Gautam Bhat <mindentropy@...il.com>
>
>  * According to mx7sabresd schematics the MIPI CSI/DSI voltage rails
>    should be 2.8V but the voltage provided is a maximum of 3.3V and
>    minimum of 1.8V. Providing such a higher voltage might damage the
>    peripherals and violates the schematic settings.
>
> Signed-off-by: Gautam Bhat <mindentropy@...il.com>

Reviewed-by: Fabio Estevam <fabio.estevam@....com>