| Message ID | 20190405145540.27703-6-dmurphy@ti.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [1/6] regulator: lm363x: Make the gpio register enable flexible | expand |
On Fri 2019-04-05 09:55:39, Dan Murphy wrote: > Add the LM36274 LED specific bindings. > > Signed-off-by: Dan Murphy <dmurphy@ti.com> > --- > .../devicetree/bindings/leds/leds-lm36274.txt | 82 +++++++++++++++++++ > 1 file changed, 82 insertions(+) > create mode 100644 Documentation/devicetree/bindings/leds/leds-lm36274.txt > > diff --git a/Documentation/devicetree/bindings/leds/leds-lm36274.txt b/Documentation/devicetree/bindings/leds/leds-lm36274.txt > new file mode 100644 > index 000000000000..359990d85b28 > --- /dev/null > +++ b/Documentation/devicetree/bindings/leds/leds-lm36274.txt > @@ -0,0 +1,82 @@ > +* Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias > + > +The LM36274 is an integrated four-channel WLED driver and LCD bias supply. > +The backlight boost provides the power to bias four parallel LED strings with > +up to 29-V total output voltage. The 11-bit LED current is rogrammable via 29V Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Pavel On 4/8/19 5:10 AM, Pavel Machek wrote: > On Fri 2019-04-05 09:55:39, Dan Murphy wrote: >> Add the LM36274 LED specific bindings. >> >> Signed-off-by: Dan Murphy <dmurphy@ti.com> >> --- >> .../devicetree/bindings/leds/leds-lm36274.txt | 82 +++++++++++++++++++ >> 1 file changed, 82 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/leds/leds-lm36274.txt >> >> diff --git a/Documentation/devicetree/bindings/leds/leds-lm36274.txt b/Documentation/devicetree/bindings/leds/leds-lm36274.txt >> new file mode 100644 >> index 000000000000..359990d85b28 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/leds-lm36274.txt >> @@ -0,0 +1,82 @@ >> +* Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias >> + >> +The LM36274 is an integrated four-channel WLED driver and LCD bias supply. >> +The backlight boost provides the power to bias four parallel LED strings with >> +up to 29-V total output voltage. The 11-bit LED current is rogrammable via > 29V > Ack > Pavel
diff --git a/Documentation/devicetree/bindings/leds/leds-lm36274.txt b/Documentation/devicetree/bindings/leds/leds-lm36274.txt new file mode 100644 index 000000000000..359990d85b28 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lm36274.txt @@ -0,0 +1,82 @@ +* Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias + +The LM36274 is an integrated four-channel WLED driver and LCD bias supply. +The backlight boost provides the power to bias four parallel LED strings with +up to 29-V total output voltage. The 11-bit LED current is programmable via +the I2C bus and/or controlled via a logic level PWM input from 60 μA to 30 mA. + +Parent device properties are documented in ../mfd/ti_lmu.txt +Regulator properties are documented in ../regulator/lm363x-regulator.txt + +Required backlight properties: + - compatible: + "ti,lm36274-backlight" + - reg : 0 + - #address-cells : 1 + - #size-cells : 0 + - led-sources : Indicates which LED strings will be enabled. + Values from 0-3, sources is 0 based so strings will be + source value + 1. + +Optional backlight properties: + - label : see Documentation/devicetree/bindings/leds/common.txt + - linux,default-trigger : + see Documentation/devicetree/bindings/leds/common.txt + +Example: + +HVLED string 1 and 3 are controlled by control bank A and HVLED 2 string is +controlled by control bank B. + +lm36274@11 { + compatible = "ti,lm36274"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x11>; + + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lm363x-regulator"; + + enable-gpios = <&pioC 0 GPIO_ACTIVE_HIGH>, + <&pioC 1 GPIO_ACTIVE_HIGH>; + + vboost { + regulator-name = "lcd_boost"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <7150000>; + regulator-always-on; + }; + + vpos { + regulator-name = "lcd_vpos"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <6500000>; + }; + + vneg { + regulator-name = "lcd_vneg"; + regulator-min-microvolt = <4000000>; + regulator-max-microvolt = <6500000>; + }; + }; + + backlight { + #address-cells = <1>; + #size-cells = <0>; + compatible = "ti,lm36274-backlight"; + + led@0 { + reg = <0>; + led-sources = <0 2>; + label = "white:backlight_cluster"; + linux,default-trigger = "backlight"; + }; + }; +}; + +For more product information please see the link below: +http://www.ti.com/lit/ds/symlink/lm36274.pdf
Add the LM36274 LED specific bindings. Signed-off-by: Dan Murphy <dmurphy@ti.com> --- .../devicetree/bindings/leds/leds-lm36274.txt | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lm36274.txt -- 2.19.0