From patchwork Mon Jul 9 10:22:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kiran Gunda X-Patchwork-Id: 10514217 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EA7A46032C for ; Mon, 9 Jul 2018 10:26:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DAC2E28A75 for ; Mon, 9 Jul 2018 10:26:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF25628A81; Mon, 9 Jul 2018 10:26:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6217D28A75 for ; Mon, 9 Jul 2018 10:26:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932674AbeGIKXh (ORCPT ); Mon, 9 Jul 2018 06:23:37 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:60998 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932445AbeGIKXf (ORCPT ); Mon, 9 Jul 2018 06:23:35 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 04C2360B18; Mon, 9 Jul 2018 10:23:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1531131815; bh=t4mIdFItCfiM8aAfZWq7h21rzjqxaDoxnSv8JG6qVT4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RnTDncWXAgWIGSm+lxcVD5JfFJwM3rQ0sZ5/QX7ar+C4exa2MTVXP4QN1DfGEyrce rfunOTYV1PDM+ipPxQC0RBQvh2zf5Q5EPRclhiquBJdHlAIT6x+SI1yQ67aF0iaY46 mNEgze6OAXcPAmOnKDBWXxZL77pwOGovGrXNOFPI= Received: from kgunda-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kgunda@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 91C406078C; Mon, 9 Jul 2018 10:23:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1531131814; bh=t4mIdFItCfiM8aAfZWq7h21rzjqxaDoxnSv8JG6qVT4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Uw/8vSCi8ccCRNiBttb2WkXgcXAE6x3VKjQmp+jfH7TY30UzyPM8Mf8oVEaEyF1Sc PhHfyAOBkI1ghd9NqTl3Bzpu76AAXgm7S6ps8Fs0lZahizAPtzAMhuExhB3DWIvMTw FT00U2fTd2CkNkGvnokCkP5l3JpofxWrJCVyKQ08= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 91C406078C Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=kgunda@codeaurora.org From: Kiran Gunda To: bjorn.andersson@linaro.org, jingoohan1@gmail.com, lee.jones@linaro.org, b.zolnierkie@samsung.com, dri-devel@lists.freedesktop.org, daniel.thompson@linaro.org, jacek.anaszewski@gmail.com, pavel@ucw.cz, robh+dt@kernel.org, mark.rutland@arm.com, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, Kiran Gunda Subject: [PATCH V4 3/8] backlight: qcom-wled: Add new properties for PMI8998 Date: Mon, 9 Jul 2018 15:52:16 +0530 Message-Id: <1531131741-19971-4-git-send-email-kgunda@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1531131741-19971-1-git-send-email-kgunda@codeaurora.org> References: <1531131741-19971-1-git-send-email-kgunda@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Update the bindings with the new properties used for PMI8998. Signed-off-by: Kiran Gunda Reviewed-by: Rob Herring Acked-by: Daniel Thompson Reviewed-by: Bjorn Andersson --- Changes from V3: - Removed the default values. - Removed pmi8998 example. .../bindings/leds/backlight/qcom-wled.txt | 76 ++++++++++++++++++---- 1 file changed, 62 insertions(+), 14 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt index 14f28f2..3f22ced 100644 --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt @@ -20,8 +20,7 @@ platforms. The PMIC is connected to the host processor via SPMI bus. - default-brightness Usage: optional Value type: - Definition: brightness value on boot, value from: 0-4095 - Default: 2048 + Definition: brightness value on boot, value from: 0-4095. - label Usage: required @@ -48,20 +47,24 @@ platforms. The PMIC is connected to the host processor via SPMI bus. - qcom,current-limit Usage: optional Value type: - Definition: mA; per-string current limit - value: For pm8941: from 0 to 25 with 5 mA step - Default 20 mA. - For pmi8998: from 0 to 30 with 5 mA step - Default 25 mA. + Definition: mA; per-string current limit; value from 0 to 25 with + 1 mA step. + This property is supported only for pm8941. + +- qcom,current-limit-microamp + Usage: optional + Value type: + Definition: uA; per-string current limit; value from 0 to 30000 with + 2500 uA step. - qcom,current-boost-limit Usage: optional Value type: Definition: mA; boost current limit. For pm8941: one of: 105, 385, 525, 805, 980, 1260, 1400, - 1680. Default: 805 mA + 1680. For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300, - 1500. Default: 970 mA + 1500. - qcom,switching-freq Usage: optional @@ -69,22 +72,66 @@ platforms. The PMIC is connected to the host processor via SPMI bus. Definition: kHz; switching frequency; one of: 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200, 4800, 9600. - Default: for pm8941: 1600 kHz - for pmi8998: 800 kHz - qcom,ovp Usage: optional Value type: Definition: V; Over-voltage protection limit; one of: - 27, 29, 32, 35. default: 29V + 27, 29, 32, 35. This property is supported only for PM8941. +- qcom,ovp-millivolt + Usage: optional + Value type: + Definition: mV; Over-voltage protection limit; + For pmi8998: one of 18100, 19600, 29600, 31100 + If this property is not specified for PM8941, it + falls back to "qcom,ovp" property. + - qcom,num-strings Usage: optional Value type: Definition: #; number of led strings attached; - value from 1 to 3. default: 2 - This property is supported only for PM8941. + value: For PM8941 from 1 to 3. + For PMI8998 from 1 to 4. + +- interrupts + Usage: optional + Value type: + Definition: Interrupts associated with WLED. This should be + "short" and "ovp" interrupts. Interrupts can be + specified as per the encoding listed under + Documentation/devicetree/bindings/spmi/ + qcom,spmi-pmic-arb.txt. + +- interrupt-names + Usage: optional + Value type: + Definition: Interrupt names associated with the interrupts. + Must be "short" and "ovp". The short circuit detection + is not supported for PM8941. + +- qcom,enabled-strings + Usage: optional + Value tyoe: + Definition: Array of the WLED strings numbered from 0 to 3. Each + string of leds are operated individually. Specify the + list of strings used by the device. Any combination of + led strings can be used. + +- qcom,external-pfet + Usage: optional + Value type: + Definition: Specify if external PFET control for short circuit + protection is used. This property is supported only + for PMI8998. + +- qcom,auto-string-detection + Usage: optional + Value type: + Definition: Enables auto-detection of the WLED string configuration. + This feature is not supported for PM8941. + Example: @@ -99,4 +146,5 @@ pm8941-wled@d800 { qcom,switching-freq = <1600>; qcom,ovp = <29>; qcom,num-strings = <2>; + qcom,enabled-strings = <0x00 0x01>; };