Messages in this thread | | | Subject | Re: [PATCH v26 04/15] dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers | From | Dan Murphy <> | Date | Mon, 8 Jun 2020 13:21:15 -0500 |
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Rob
On 6/4/20 5:59 PM, Rob Herring wrote: > On Thu, Jun 04, 2020 at 07:04:53AM -0500, Dan Murphy wrote: >> Introduce the bindings for the Texas Instruments LP5036, LP5030, LP5024, >> LP5018, LP5012 and LP5009 RGB LED device driver. The LP5036/30/24/18/12/9 >> can control RGB LEDs individually or as part of a control bank group. >> These devices have the ability to adjust the mixing control for the RGB >> LEDs to obtain different colors independent of the overall brightness of >> the LED grouping. >> >> Datasheet: >> http://www.ti.com/lit/ds/symlink/lp5012.pdf >> http://www.ti.com/lit/ds/symlink/lp5024.pdf >> http://www.ti.com/lit/ds/symlink/lp5036.pdf >> >> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> >> Signed-off-by: Dan Murphy <dmurphy@ti.com> >> --- >> .../devicetree/bindings/leds/leds-lp50xx.yaml | 136 ++++++++++++++++++ >> 1 file changed, 136 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/leds/leds-lp50xx.yaml >> >> diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml >> new file mode 100644 >> index 000000000000..02fcdc13262f >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml >> @@ -0,0 +1,136 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/leds/leds-lp50xx.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: LED driver for LP50XX RGB LED from Texas Instruments. >> + >> +maintainers: >> + - Dan Murphy <dmurphy@ti.com> >> + >> +description: | >> + The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into >> + a LED group or control them individually. >> + >> + The difference in these RGB LED drivers is the number of supported RGB >> + modules. >> + >> + For more product information please see the link below: >> + http://www.ti.com/lit/ds/symlink/lp5012.pdf >> + http://www.ti.com/lit/ds/symlink/lp5024.pdf >> + http://www.ti.com/lit/ds/symlink/lp5036.pdf >> + >> +properties: >> + #allOf: >> + #- $ref: "common.yaml#" >> + #- $ref: "leds-class-multicolor.yaml#" > These describe properties in the 'multi-led' nodes, so the $ref goes > there. And you only need the 2nd one because it already references the > 1st one (or it should once you fix patch 1). Got it >> + >> + compatible: >> + enum: >> + - ti,lp5009 >> + - ti,lp5012 >> + - ti,lp5018 >> + - ti,lp5024 >> + - ti,lp5030 >> + - ti,lp5036 >> + >> + reg: >> + maxItems: 1 >> + description: >> + I2C slave address >> + lp5009/12 - 0x14, 0x15, 0x16, 0x17 >> + lp5018/24 - 0x28, 0x29, 0x2a, 0x2b >> + lp5030/36 - 0x30, 0x31, 0x32, 0x33 >> + >> + enable-gpios: >> + maxItems: 1 >> + description: GPIO pin to enable/disable the device. >> + >> + vled-supply: >> + description: LED supply. >> + >> + child-node: > I guess you didn't understand what I said on this. What you need is: > > patternProperties: > '^multi-led@[0-9]$': > type: object > $ref: leds-class-multicolor.yaml# > properties: > ... > > patternProperties: > '^led@[0-9]$': > type: object > $ref: common.yaml# > > Adjust '[0-9]' based on how many possible child addresses there can be. > It's hex if more than 10. > Most we can have are 12 modules >> + properties: >> + ti,led-bank: >> + description: >> + This property denotes the LED module numbers that will be controlled as >> + a single RGB cluster. Each LED module number will be controlled by a >> + single LED class instance. >> + There can only be one instance of the ti,led-bank >> + property for each device node. This is a required node if the LED >> + modules are to be banked. >> + $ref: /schemas/types.yaml#definitions/uint32-array >> + >> +required: >> + - compatible >> + - reg > additionalProperties: false
This causes a binding check failure for
leds/leds-lp50xx.example.dt.yaml: led-controller@14: '#address-cells', '#size-cells' do not match any of the regexes: '^multi-led@[0-9a-f]$', 'pinctrl-[0-9]+'
>> + >> +examples: >> + - | >> + #include <dt-bindings/gpio/gpio.h> >> + #include <dt-bindings/leds/common.h> >> + >> + i2c { >> + #address-cells = <1>; >> + #size-cells = <0>; >> + >> + led-controller@14 { >> + compatible = "ti,lp5009"; >> + reg = <0x14>; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + enable-gpios = <&gpio1 16>; >> + >> + multi-led@1 { >> + #address-cells = <1>; >> + #size-cells = <0>; >> + reg = <1>; >> + color = <LED_COLOR_ID_MULTI>; >> + function = LED_FUNCTION_CHARGING; >> + >> + led@0 { >> + reg = <0>; >> + color = <LED_COLOR_ID_RED>; >> + }; >> + >> + led@1 { >> + reg = <1>; >> + color = <LED_COLOR_ID_GREEN>; >> + }; >> + >> + led@2 { >> + reg = <2>; >> + color = <LED_COLOR_ID_BLUE>; >> + }; >> + }; >> + >> + multi-led@2 { >> + #address-cells = <1>; >> + #size-cells = <0>; >> + reg = <2>; >> + color = <LED_COLOR_ID_MULTI>; >> + function = LED_FUNCTION_STANDBY; >> + ti,led-bank = <2 3 5>; > I still don't understand why 'reg = <2 3 5>;' with the 1st entry being > the control bank. Is '2' in reg not the same thing as '2' here?
I changed this.
Now reg is the module numbers that can either stand alone or be grouped.
Dan
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