linux-kernel - Re: [PATCH v2 2/9] dt-bindings: mfd: axp20x: Introduce bindings for AXP813

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Date:   Mon, 7 Aug 2017 16:43:36 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 2/9] dt-bindings: mfd: axp20x: Introduce bindings for
 AXP813

On Wed, 26 Jul 2017, Chen-Yu Tsai wrote:

> The X-Powers AXP813 is a PMIC designed to be paired with Allwinner's
> A83T SoC. There is also an AXP818, which is paired with the H8 SoC.
> 
> The two models seem to be identical, apart from the external markings.
> 
> This patch introduces the basic mfd and regulator bindings for the
> AXP813.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> Acked-by: Rob Herring <robh@...nel.org>
> Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
> ---
>  Documentation/devicetree/bindings/mfd/axp20x.txt | 49 +++++++++++++++++++++---
>  1 file changed, 44 insertions(+), 5 deletions(-)

Applied, thanks.

> diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
> index 211a100c6b20..9455503b0299 100644
> --- a/Documentation/devicetree/bindings/mfd/axp20x.txt
> +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt
> @@ -9,6 +9,12 @@ axp223 (X-Powers)
>  axp803 (X-Powers)
>  axp806 (X-Powers)
>  axp809 (X-Powers)
> +axp813 (X-Powers)
> +
> +The AXP813 is 2 chips packaged into 1. The 2 chips do not share anything
> +other than the packaging. Pins are routed separately. As such they should
> +be treated as separate entities. The other half is an AC100 RTC/codec
> +combo chip. Please see ./ac100.txt for its bindings.
>  
>  Required properties:
>  - compatible: should be one of:
> @@ -20,6 +26,7 @@ Required properties:
>      * "x-powers,axp803"
>      * "x-powers,axp806"
>      * "x-powers,axp809"
> +    * "x-powers,axp813"
>  - reg: The I2C slave address or RSB hardware address for the AXP chip
>  - interrupt-parent: The parent interrupt controller
>  - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin
> @@ -29,12 +36,14 @@ Required properties:
>  Optional properties:
>  - x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz
>  		      AXP152/20X: range:  750-1875, Default: 1.5 MHz
> -		      AXP22X/80X: range: 1800-4050, Default: 3   MHz
> +		      AXP22X/8XX: range: 1800-4050, Default: 3   MHz
>  
> -- x-powers,drive-vbus-en: axp221 / axp223 only boolean, set this when the
> -		  N_VBUSEN pin is used as an output pin to control an external
> -		  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,drive-vbus-en: boolean, set this when the N_VBUSEN pin is
> +			  used as an output pin to control an external
> +			  regulator to drive the OTG VBus, rather then
> +			  as an input pin which signals whether the
> +			  board is driving OTG VBus or not.
> +			  (axp221 / axp223 / axp813 only)
>  
>  - x-powers,master-mode: Boolean (axp806 only). Set this when the PMIC is
>  			wired for master mode. The default is slave mode.
> @@ -172,6 +181,36 @@ LDO_IO1		: LDO		: ips-supply		: GPIO 1
>  RTC_LDO		: LDO		: ips-supply		: always on
>  SW		: On/Off Switch : swin-supply
>  
> +AXP813 regulators, type, and corresponding input supply names:
> +
> +Regulator	  Type		  Supply Name		  Notes
> +---------	  ----		  -----------		  -----
> +DCDC1		: DC-DC buck	: vin1-supply
> +DCDC2		: DC-DC buck	: vin2-supply		: poly-phase capable
> +DCDC3		: DC-DC	buck	: vin3-supply		: poly-phase capable
> +DCDC4		: DC-DC	buck	: vin4-supply
> +DCDC5		: DC-DC	buck	: vin5-supply		: poly-phase capable
> +DCDC6		: DC-DC	buck	: vin6-supply		: poly-phase capable
> +DCDC7		: DC-DC	buck	: vin7-supply
> +ALDO1		: LDO		: aldoin-supply		: shared supply
> +ALDO2		: LDO		: aldoin-supply		: shared supply
> +ALDO3		: LDO		: aldoin-supply		: shared supply
> +DLDO1		: LDO		: dldoin-supply		: shared supply
> +DLDO2		: LDO		: dldoin-supply		: shared supply
> +DLDO3		: LDO		: dldoin-supply		: shared supply
> +DLDO4		: LDO		: dldoin-supply		: shared supply
> +ELDO1		: LDO		: eldoin-supply		: shared supply
> +ELDO2		: LDO		: eldoin-supply		: shared supply
> +ELDO3		: LDO		: eldoin-supply		: shared supply
> +FLDO1		: LDO		: fldoin-supply		: shared supply
> +FLDO2		: LDO		: fldoin-supply		: shared supply
> +FLDO3		: LDO		: fldoin-supply		: shared supply
> +LDO_IO0		: LDO		: ips-supply		: GPIO 0
> +LDO_IO1		: LDO		: ips-supply		: GPIO 1
> +RTC_LDO		: LDO		: ips-supply		: always on
> +SW		: On/Off Switch : swin-supply
> +DRIVEVBUS	: Enable output	: drivevbus-supply	: external regulator
> +
>  Example:
>  
>  axp209: pmic@34 {

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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