linux-kernel - Re: [PATCH v3] mfd: lp87565: Add lp87565 PMIC support

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Date:   Wed, 7 Jun 2017 16:11:49 -0500
From:   Rob Herring <robh@...nel.org>
To:     Keerthy <j-keerthy@...com>
Cc:     broonie@...nel.org, lee.jones@...aro.org, t-kristo@...com,
        tony@...mide.com, mark.rutland@....com, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        afd@...com
Subject: Re: [PATCH v3] mfd: lp87565: Add lp87565 PMIC support

On Tue, May 30, 2017 at 06:57:40PM +0530, Keerthy wrote:
> The LP87565 chip is a power management IC for Portable Navigation Systems
> and Tablet Computing devices. It contains the following components:
> 
>         - Configurable Bucks(Single and multi-phase).
>         - Configurable General Purpose Output Signals (GPO).
> 
> The LP87565-Q1 variant device uses two 2-phase outputs configuration,
> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3
> output.
> 
> Signed-off-by: Keerthy <j-keerthy@...com>
> ---
> 
> The other patches are already pulled by Mark. Hence posting
> the remaining patch.
> 
> Changes in v3:
> 
>   * Fixed License to GPL v2.
>   * Fixed an indentation issue.
> 
> Changes in v2:
> 
>   * Fixed a bunch of whitespace errors.
>   * Changed the License to short form.
>   * Added the generic compatible lp87565
>   * Removed i2c_device_id table.
>   * Introduced probe_new function in place of probe.
> 
>  Documentation/devicetree/bindings/mfd/lp87565.txt |  45 ++++
>  drivers/mfd/Kconfig                               |  14 ++
>  drivers/mfd/Makefile                              |   1 +
>  drivers/mfd/lp87565.c                             |  92 ++++++++
>  include/linux/mfd/lp87565.h                       | 270 ++++++++++++++++++++++
>  5 files changed, 422 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt
>  create mode 100644 drivers/mfd/lp87565.c
>  create mode 100644 include/linux/mfd/lp87565.h
> 
> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt
> new file mode 100644
> index 0000000..f63d568
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt
> @@ -0,0 +1,45 @@
> +TI LP87565 PMIC MFD driver
> +
> +Required properties:
> +  - compatible:	"ti,lp87565", "ti,lp87565-q1"
> +  - reg:		I2C slave address.
> +  - gpio-controller:	Marks the device node as a GPIO Controller.
> +  - #gpio-cells:	Should be two.  The first cell is the pin number and
> +			the second cell is used to specify flags.
> +			See ../gpio/gpio.txt for more information.
> +  - xxx-in-supply:	Phandle to parent supply node of each regulator
> +			populated under regulators node. xxx should match
> +			the supply_name populated in driver.
> +  - regulators:	List of child nodes that specify the regulator
> +			initialization data.

This is a node, not a property.

> +Example:
> +
> +lp87565_pmic: lp87565@60 {

pmic@60

> +	compatible = "ti,lp87565-q1";
> +	reg = <0x60>;
> +	gpio-controller;
> +	#gpio-cells = <2>;
> +
> +	buck10-in-supply = <&vsys_3v3>;
> +	buck23-in-supply = <&vsys_3v3>;
> +
> +	regulators: regulators {
> +		buck10_reg: buck10 {
> +			/* VDD_MPU */
> +			regulator-name = "buck10";
> +			regulator-min-microvolt = <850000>;
> +			regulator-max-microvolt = <1250000>;
> +			regulator-always-on;
> +			regulator-boot-on;
> +		};
> +
> +		buck23_reg: buck23 {
> +			/* VDD_GPU */
> +			regulator-name = "buck23";
> +			regulator-min-microvolt = <850000>;
> +			regulator-max-microvolt = <1250000>;
> +			regulator-boot-on;
> +			regulator-always-on;
> +		};
> +	};
> +};