From patchwork Tue Jun 19 11:13:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kiran Gunda X-Patchwork-Id: 10475123 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 56A5E603B5 for ; Tue, 19 Jun 2018 17:02:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4696F28E3C for ; Tue, 19 Jun 2018 17:02:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3B86A28E3F; Tue, 19 Jun 2018 17:02:53 +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=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CB7BF28E3D for ; Tue, 19 Jun 2018 17:02:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3E4EA6E5B2; Tue, 19 Jun 2018 17:02:22 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3623C6E227 for ; Tue, 19 Jun 2018 11:15:03 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 1CBC860558; Tue, 19 Jun 2018 11:15:03 +0000 (UTC) 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 76D9460558; Tue, 19 Jun 2018 11:14:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 76D9460558 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 , Jacek Anaszewski , Pavel Machek , Rob Herring , Mark Rutland , linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V3 3/7] backlight: qcom-wled: Add new properties for PMI8998 Date: Tue, 19 Jun 2018 16:43:38 +0530 Message-Id: <1529406822-15379-4-git-send-email-kgunda@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1529406822-15379-1-git-send-email-kgunda@codeaurora.org> References: <1529406822-15379-1-git-send-email-kgunda@codeaurora.org> X-Mailman-Approved-At: Tue, 19 Jun 2018 17:02:18 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, Kiran Gunda MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Update the bindings with the new properties used for PMI8998. Signed-off-by: Kiran Gunda --- .../bindings/leds/backlight/qcom-wled.txt | 84 ++++++++++++++++++++-- 1 file changed, 77 insertions(+), 7 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt index 14f28f2..503ce87 100644 --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt @@ -48,11 +48,15 @@ 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. Default 20 mA. + 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. Default 25000 uA. - qcom,current-boost-limit Usage: optional @@ -79,12 +83,61 @@ platforms. The PMIC is connected to the host processor via SPMI bus. 27, 29, 32, 35. default: 29V 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 + Default: 29600 mV + 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. default: 2 + For PMI8998 from 1 to 4. default: 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. + for pm8941: Default values are [00 01]. + for pmi8998: Default values are [00 01 02 03]. + +- 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 +152,21 @@ pm8941-wled@d800 { qcom,switching-freq = <1600>; qcom,ovp = <29>; qcom,num-strings = <2>; + qcom,enabled-strings = <0x00 0x01>; +}; + +pmi8998-wled@d800 { + compatible = "qcom,pmi8998-wled"; + reg = <0xd800 0xd900>; + label = "backlight"; + + interrupts = <3 0xd8 2 IRQ_TYPE_EDGE_RISING>, + <3 0xd8 1 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "short", "ovp"; + qcom,current-limit-microamp = <25000>; + qcom,current-boost-limit = <805>; + qcom,switching-freq = <1600>; + qcom,ovp-millivolt = <29600>; + qcom,num-strings = <4>; + qcom,enabled-strings = <0x00 0x01 0x02 0x03>; };