linux-kernel - Re: [PATCH 1/2] dts: mfd: axp20x: Add xpowers,master-mode property for AXP806 PMICs

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Message-ID: <20170227170541.s5ntce5njwpavnyw@rob-hp-laptop>
Date:   Mon, 27 Feb 2017 11:05:42 -0600
From:   Rob Herring <robh@...nel.org>
To:     Rask Ingemann Lambertsen <rask@...melder.dk>
Cc:     Chen-Yu Tsai <wens@...e.org>, Lee Jones <lee.jones@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] dts: mfd: axp20x: Add xpowers,master-mode property
 for AXP806 PMICs

On Sat, Feb 18, 2017 at 08:51:18PM +0100, Rask Ingemann Lambertsen wrote:
> commit b101829a029a ("mfd: axp20x: Fix AXP806 access errors on cold boot")
> was intended to fix the case where a board uses an AXP806 in slave mode,
> but the boot loader leaves it in master mode for lack of AXP806 support.
> But now the driver breaks on boards where the PMIC is operating in master
> mode. To let the device tree describe which mode of operation is needed,
> this patch introduces a new property "xpowers,master-mode".
> 
> Fixes: b101829a029a ("mfd: axp20x: Fix AXP806 access errors on cold boot")
> Signed-off-by: Rask Ingemann Lambertsen <rask@...melder.dk>
> ---
>  Documentation/devicetree/bindings/mfd/axp20x.txt | 3 +++
>  1 file changed, 3 insertions(+)

Acked-by: Rob Herring <robh@...nel.org>