From: Rob Herring <robh@kernel.org>
To: Dan Murphy <dmurphy@ti.com>
Cc: jacek.anaszewski@gmail.com, pavel@ucw.cz, lee.jones@linaro.org,
tony@atomide.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org
Subject: Re: [PATCH v3 4/9] dt-bindings: leds: Add bindings for lm3697 driver
Date: Fri, 12 Oct 2018 11:27:02 -0500 [thread overview]
Message-ID: <20181012162702.GA5672@bogus> (raw)
In-Reply-To: <20181011165123.32198-5-dmurphy@ti.com>
On Thu, Oct 11, 2018 at 11:51:18AM -0500, Dan Murphy wrote:
> Add the device tree bindings for the lm3697
> LED driver for backlighting and display.
Bindings are for h/w, not drivers...
>
> Signed-off-by: Dan Murphy <dmurphy@ti.com>
> ---
> .../devicetree/bindings/leds/leds-lm3697.txt | 98 +++++++++++++++++++
> 1 file changed, 98 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3697.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-lm3697.txt b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
> new file mode 100644
> index 000000000000..4bb2ed51025b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
> @@ -0,0 +1,98 @@
> +* Texas Instruments - LM3697 Highly Efficient White LED Driver
> +
> +The LM3697 11-bit LED driver provides high-
> +performance backlight dimming for 1, 2, or 3 series
> +LED strings while delivering up to 90% efficiency.
> +
> +This device is suitable for display and keypad Lighting
> +
> +Required properties:
> + - compatible:
> + "ti,lm3697"
> + - reg : I2C slave address
> + - #address-cells : 1
> + - #size-cells : 0
> +
> +Optional properties:
> + - enable-gpios : GPIO pin to enable/disable the device
> + - vled-supply : LED supply
> +
> +Required child properties:
> + - reg : 0 - LED is Controlled by bank A
> + 1 - LED is Controlled by bank B
> + - led-sources : Indicates which HVLED string is associated to which
> + control bank. Each element in the array is associated
> + with a specific HVLED string. Element 0 is HVLED1,
> + element 1 is HVLED2 and element 2 HVLED3.
> + Additional information is contained
> + in Documentation/devicetree/bindings/leds/common.txt
> + 0 - HVLED is not active in this control bank
> + 1 - HVLED string is controlled by this control bank
> +
> +Optional child properties:
> + - runtime-ramp-up-msec: Current ramping from one brightness level to
> + the a higher brightness level.
> + Range from 2048 us - 117.44 s
> + - runtime-ramp-down-msec: Current ramping from one brightness level to
> + the a lower brightness level.
> + Range from 2048 us - 117.44 s
> + - 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.
> +
> +led-controller@36 {
> + compatible = "ti,lm3697";
> + reg = <0x36>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
> + vled-supply = <&vbatt>;
> +
> + led@0 {
> + reg = <0>;
> + led-sources = <1 0 1>;
> + runtime-ramp-up-msec = <5000>;
> + runtime-ramp-down-msec = <1000>;
> + label = "white:first_backlight_cluster";
> + linux,default-trigger = "backlight";
> + };
> +
> + led@1 {
> + reg = <1>;
> + led-sources = <0 1 0>;
> + runtime-ramp-up-msec = <500>;
> + runtime-ramp-down-msec = <1000>;
> + label = "white:second_backlight_cluster";
> + linux,default-trigger = "backlight";
> + };
> +}
> +
> +All HVLED strings controlled by control bank A
> +
> +led-controller@36 {
> + compatible = "ti,lm3697";
> + reg = <0x36>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
> + vled-supply = <&vbatt>;
> +
> + led@0 {
> + reg = <0>;
> + led-sources = <1 1 1>;
> + runtime-ramp-up-msec = <500>;
> + runtime-ramp-down-msec = <1000>;
> + label = "white:backlight_cluster";
> + linux,default-trigger = "backlight";
> + };
> +}
> +
> +For more product information please see the link below:
> +http://www.ti.com/lit/ds/symlink/lm3697.pdf
> --
> 2.19.0
>
next prev parent reply other threads:[~2018-10-12 16:27 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-11 16:51 [PATCH v3 0/9] TI LMU common Framework Dan Murphy
2018-10-11 16:51 ` [PATCH v3 1/9] leds: add TI LMU backlight driver Dan Murphy
2018-10-11 16:51 ` [PATCH v3 2/9] dt-bindings: ti-lmu: Remove LM3697 Dan Murphy
2018-10-11 18:27 ` Pavel Machek
2018-10-11 18:34 ` Dan Murphy
2018-10-11 19:38 ` Jacek Anaszewski
2018-10-12 16:26 ` Rob Herring
2018-10-12 18:03 ` Pavel Machek
2018-10-13 18:45 ` Jacek Anaszewski
2018-10-15 0:56 ` Rob Herring
2018-10-15 19:13 ` Jacek Anaszewski
2018-10-15 19:14 ` Dan Murphy
2018-10-15 21:45 ` Pavel Machek
2018-10-16 13:25 ` Dan Murphy
2018-10-18 22:10 ` Pavel Machek
2018-10-19 11:42 ` Dan Murphy
2018-10-19 14:58 ` Tony Lindgren
2018-10-24 8:55 ` Pavel Machek
2018-10-12 9:07 ` Lee Jones
2018-10-11 16:51 ` [PATCH v3 3/9] mfd: ti-lmu: Remove support for LM3697 Dan Murphy
2018-10-11 16:51 ` [PATCH v3 4/9] dt-bindings: leds: Add bindings for lm3697 driver Dan Murphy
2018-10-12 16:27 ` Rob Herring [this message]
2018-10-19 11:47 ` Dan Murphy
2018-10-11 16:51 ` [PATCH v3 5/9] leds: lm3697: Introduce the " Dan Murphy
2018-10-11 16:51 ` [PATCH v3 6/9] dt-bindings: ti-lmu: Remove LM3633 Dan Murphy
2018-10-11 16:51 ` [PATCH v3 7/9] mfd: ti-lmu: Remove support for LM3633 Dan Murphy
2018-10-11 16:51 ` [PATCH v3 8/9] dt-bindings: leds: Add support for the LM3633 Dan Murphy
2018-10-11 16:51 ` [PATCH v3 9/9] leds: lm3633: Introduce the lm3633 driver Dan Murphy
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