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Date: Fri, 9 Jun 2017 09:03:09 -0500
From: Rob Herring <robh@...nel.org>
To: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-leds@...r.kernel.org, linux-input@...r.kernel.org,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Lee Jones <lee.jones@...aro.org>,
Daniel Thompson <daniel.thompson@...aro.org>,
Jingoo Han <jingoohan1@...il.com>,
Richard Purdie <rpurdie@...ys.net>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
Pavel Machek <pavel@....cz>,
Mark Rutland <mark.rutland@....com>,
Russell King <linux@...linux.org.uk>,
Tony Lindgren <tony@...mide.com>, javier@...hile0.org
Subject: Re: [PATCH 1/4] dt-bindings: tps65217: Update binding documentation.
On Wed, Jun 07, 2017 at 12:32:39PM +0200, Enric Balletbo i Serra wrote:
> This patch adds a new binding documentation for the TPS65217 MFD and
> updates the documentation for all the sub-devices in accordance to get
> each individual sub-driver functioning correctly.
Explain why breaking compatibility is okay.
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> ---
> .../bindings/input/tps65218-pwrbutton.txt | 2 +-
> .../bindings/leds/backlight/tps65217-backlight.txt | 24 ++---
> Documentation/devicetree/bindings/mfd/tps65217.txt | 100 +++++++++++++++++++++
> .../devicetree/bindings/regulator/tps65217.txt | 8 +-
> 4 files changed, 119 insertions(+), 15 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mfd/tps65217.txt
>
> diff --git a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
> index 8682ab6..603a3f0 100644
> --- a/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
> +++ b/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
> @@ -1,7 +1,7 @@
> Texas Instruments TPS65217 and TPS65218 power button
>
> This module is part of the TPS65217/TPS65218. For more details about the whole
> -TPS65217 chip see Documentation/devicetree/bindings/regulator/tps65217.txt.
> +TPS65217 chip see Documentation/devicetree/bindings/mfd/tps65217.txt.
>
> This driver provides a simple power button event via an Interrupt.
>
> diff --git a/Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt
> index 5fb9279..a1bc465 100644
> --- a/Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt
> +++ b/Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt
> @@ -1,11 +1,13 @@
> -TPS65217 family of regulators
> +Texas Instruments TPS65217 backlight regulator
> +
> +This module is part of the TPS65217. For more details about the whole
> +TPS65217 chip see Documentation/devicetree/bindings/mfd/tps65217.txt.
>
> The TPS65217 chip contains a boost converter and current sinks which can be
> used to drive LEDs for use as backlights.
>
> Required properties:
> -- compatible: "ti,tps65217"
> -- reg: I2C slave address
> +- compatible: "ti,tps65217-bl"
> - backlight: node for specifying WLED1 and WLED2 lines in TPS65217
> - isel: selection bit, valid values: 1 for ISEL1 (low-level) and 2 for ISEL2 (high-level)
> - fdim: PWM dimming frequency, valid values: 100, 200, 500, 1000
> @@ -15,13 +17,13 @@ Each regulator is defined using the standard binding for regulators.
>
> Example:
>
> - tps: tps@24 {
> - reg = <0x24>;
> - compatible = "ti,tps65217";
> - backlight {
> - isel = <1>; /* 1 - ISET1, 2 ISET2 */
> - fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
> - default-brightness = <50>;
> - };
> +&tps {
> + backlight {
> + compatible = "ti,tps65217-bl";
> + status = "okay";
> + isel = <1>; /* 1 - ISET1, 2 ISET2 */
> + fdim = <100>; /* TPS65217_BL_FDIM_100HZ */
> + default-brightness = <50>;
> };
> +};
>
> diff --git a/Documentation/devicetree/bindings/mfd/tps65217.txt b/Documentation/devicetree/bindings/mfd/tps65217.txt
> new file mode 100644
> index 0000000..40c84ba
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/tps65217.txt
> @@ -0,0 +1,100 @@
> +Texas Instruments TPS65217 Single-Chip PMIC for Battery-Powered Systems
> +
> +Required properties:
> +- compatible: "ti,tps65217"
> +- reg: I2C slave address.
> +- interrupt-controller: Marks the device node as an interrupt controller.
> +- #interrupt-cells: The number of cells to describe an IRQ, this should be 1.
> +- backlight: Child node that specify the backlight regulator sub-device. See:
> + Documentation/devicetree/bindings/leds/backlight/tps65217-backlight.txt
> +- charger: Child node that specify the charger sub-device. See:
> + Documentation/devicetree/bindings/power/supply/tps65217_charger.txt
> +- pwrbutton: Child node that specify the power button sub-device. See:
> + Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
> +- regulators: List of child nodes that specify the regulator initialization
> + data. See:
> + Documentation/devicetree/bindings/regulator/tps65217.txt.
> +
> +Optional properties:
> +- ti,pmic-shutdown-controller: Telling the PMIC to shutdown on PWR_EN toggle.
> +
> +Example:
> +
> + tps: tps@24 {
> + compatible = "ti,tps65217";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> +
> + ti,pmic-shutdown-controller;
> +
> + backlight {
> + compatible = "ti,tps65217-bl";
> + status = "disabled";
> + };
> +
> + charger {
> + compatible = "ti,tps65217-charger";
> + status = "disabled";
> + };
> +
> + pwrbutton {
> + compatible = "ti,tps65217-pwrbutton";
> + status = "disabled";
> + };
> +
> + regulators {
> + compatible = "ti,tps65217-pmic";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + dcdc1_reg: dcdc1 {
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + dcdc2_reg: dcdc2 {
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + dcdc3_reg: dcc3 {
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <1500000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo1_reg: ldo1 {
> + regulator-min-microvolt = <1000000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo2_reg: ldo2 {
> + regulator-min-microvolt = <900000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo3_reg: ldo3 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> + ldo4_reg: ldo4 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + };
> + };
> +
> diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt
> index 4f05d20..2d9b519 100644
> --- a/Documentation/devicetree/bindings/regulator/tps65217.txt
> +++ b/Documentation/devicetree/bindings/regulator/tps65217.txt
> @@ -1,8 +1,10 @@
> -TPS65217 family of regulators
> +Texas Instruments TPS65217 family of regulators
> +
> +This module is part of the TPS65217. For more details about the whole
> +TPS65217 chip see Documentation/devicetree/bindings/mfd/tps65217.txt.
>
> Required properties:
> -- compatible: "ti,tps65217"
> -- reg: I2C slave address
> +- compatible: "ti,tps65217-pmic"
> - regulators: list of regulators provided by this controller, must be named
> after their hardware counterparts: dcdc[1-3] and ldo[1-4]
> - regulators: This is the list of child nodes that specify the regulator
regulators twice? Fix that while you're here.
> --
> 2.9.3
>
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