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Thu, 16 Aug 2018 13:43:26 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Thu, 16 Aug 2018 13:43:26 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE110.ent.ti.com (157.170.170.21) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Thu, 16 Aug 2018 13:43:26 -0500 Received: from [172.22.174.92] (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w7GIhQG1013754; Thu, 16 Aug 2018 13:43:26 -0500 Subject: Re: [PATCH v4 1/2] dt-bindings: leds: Add bindings for lm3697 driver To: Jacek Anaszewski , , CC: , , References: <20180816172058.31700-1-dmurphy@ti.com> From: Dan Murphy Message-ID: <0c91fe1f-8ab4-8092-b8c2-a22f89f4b8ea@ti.com> Date: Thu, 16 Aug 2018 13:43:19 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Jacek On 08/16/2018 01:37 PM, Jacek Anaszewski wrote: > Hi Dan, > > Thanks for the update. > > I have one remark below. > > On 08/16/2018 07:20 PM, Dan Murphy wrote: >> Add the device tree bindings for the lm3697 >> LED driver for backlighting and display. >> >> Signed-off-by: Dan Murphy >> --- >> >> v4 - Removed HVLED definition in favor of HVLED place definition - https://lore.kernel.org/patchwork/patch/974812/ >> v3 - Updated subject with prefered title - https://lore.kernel.org/patchwork/patch/972337/ >> v2 - Fixed subject and patch commit message - https://lore.kernel.org/patchwork/patch/971326/ >> >> .../devicetree/bindings/leds/leds-lm3697.txt | 86 +++++++++++++++++++ >> 1 file changed, 86 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..bcd67d53c889 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt >> @@ -0,0 +1,86 @@ >> +* 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,lm3967" >> + - 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: >> + - label : see Documentation/devicetree/bindings/leds/common.txt >> + - linux,default-trigger : >> + see Documentation/devicetree/bindings/leds/common.txt >> + >> +Example: >> + >> +HVLED string 1 and 2 controlled by control bank A and HVLED string controlled by > > s/1 and 2/1 and 3/ > s/HVLED string controller/HVLED string 2 controlled/ > Thanks I will fix this up in v5 after the code review. Dan >> +control bank B. >> + >> +led-controller@36 { >> + compatible = "ti,lm3967"; >> + 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>; >> + label = "white:first_backlight_cluster"; >> + linux,default-trigger = "backlight"; >> + }; >> + >> + led@1 { >> + reg = <1>; >> + led-sources = <0 1 0>; >> + label = "white:second_backlight_cluster"; >> + linux,default-trigger = "backlight"; >> + }; >> +} >> + >> +All HVLED strings controlled by control bank A >> + >> +led-controller@36 { >> + compatible = "ti,lm3967"; >> + 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>; >> + 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 >> > -- ------------------ Dan Murphy