On Wed, 22 Feb 2017, 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: 204ae2963e10 ("mfd: axp20x: Add bindings for AXP806 PMIC")
> Signed-off-by: Rask Ingemann Lambertsen <rask@xxxxxxxxxxxx>
> Acked-by: Chen-Yu Tsai <wens@xxxxxxxx>
> ---
> Changes from v1 to v2:
> Changed the commit message such that Fixes: points to the commit which
> introduced the bindings for the AXP806 because the property should have been
> included from the beginning of the AXP806 support.
>
> Documentation/devicetree/bindings/mfd/axp20x.txt | 3 +++
> 1 file changed, 3 insertions(+)
Applied, thanks.
> diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
> index 8f3ad9a..b41d260 100644
> --- a/Documentation/devicetree/bindings/mfd/axp20x.txt
> +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt
> @@ -28,6 +28,9 @@ Optional properties:
> regulator to drive the OTG VBus, rather then as an input pin
> which signals whether the board is driving OTG VBus or not.
>
> +- x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
> + wired for master mode. The default is slave mode.
> +
> - <input>-supply: a phandle to the regulator supply node. May be omitted if
> inputs are unregulated, such as using the IPSOUT output
> from the PMIC.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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