From patchwork Fri Oct 18 12:33:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kiran Gunda X-Patchwork-Id: 11198349 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E382219A1 for ; Fri, 18 Oct 2019 12:34:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BBC76222C5 for ; Fri, 18 Oct 2019 12:34:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="gVBqbZmx"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="R2VZU2i2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731028AbfJRMeE (ORCPT ); Fri, 18 Oct 2019 08:34:04 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:52118 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2408148AbfJRMeE (ORCPT ); Fri, 18 Oct 2019 08:34:04 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 857F26120E; Fri, 18 Oct 2019 12:33:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1571402043; bh=KXb10Tnw3cR6uvRJfbte1LltJk1d/EvokCCPooPECdQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gVBqbZmxWy2kInndk4i4Y90xcI0C9V/gJ7ThDfuuf2e48Q/wufBVsuo6+pBWb5Qs5 b2hVxBeLs3p5wnsRqWOKYKvwS1A2iFxvlMIVYAFaXTbT6q8FfUztIFy+rFZv8ybltW eKsltSWMxLcDUX6LxnOvxwCx6o1xhZqW+uItYwQY= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 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 08C3461162; Fri, 18 Oct 2019 12:33:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1571402036; bh=KXb10Tnw3cR6uvRJfbte1LltJk1d/EvokCCPooPECdQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R2VZU2i25DfZo5BFL4t9O5nMQ0ZRS1RdmtGyzw5e2GkDLN5S33b0fB4JOJ6vF+inz iExEbASZOFt/cQWwwaZAQuZ8mffcV2HTy+V2u+9ZLuxi0yqtMFNoGeYv4VK5ltpR1a eEp9kpsWtIbOAPIwlWAv8hObJyDOkxBJ7X375+Xo= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 08C3461162 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, Dan Murphy Cc: linux-arm-msm@vger.kernel.org, Kiran Gunda Subject: [PATCH V8 1/6] backlight: qcom-wled: Add new properties for PMI8998. Date: Fri, 18 Oct 2019 18:03:24 +0530 Message-Id: <1571402009-8706-2-git-send-email-kgunda@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1571402009-8706-1-git-send-email-kgunda@codeaurora.org> References: <1571402009-8706-1-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 Update the bindings with the new properties used for PMI8998. Signed-off-by: Kiran Gunda Reviewed-by: Bjorn Andersson Reviewed-by: Rob Herring Acked-by: Daniel Thompson --- .../bindings/leds/backlight/qcom-wled.txt | 74 ++++++++++++++++++---- 1 file changed, 63 insertions(+), 11 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt index 14f28f2..c06863b 100644 --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt @@ -20,7 +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 + Definition: brightness value on boot, value from: 0-4095. Default: 2048 - label @@ -48,20 +48,24 @@ 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. 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 25 mA. - 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. Default: 805 mA. For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300, - 1500. Default: 970 mA + 1500. Default: 970 mA. - qcom,switching-freq Usage: optional @@ -76,15 +80,62 @@ platforms. The PMIC is connected to the host processor via SPMI bus. Usage: optional Value type: Definition: V; Over-voltage protection limit; one of: - 27, 29, 32, 35. default: 29V + 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. + +- 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 +150,5 @@ pm8941-wled@d800 { qcom,switching-freq = <1600>; qcom,ovp = <29>; qcom,num-strings = <2>; + qcom,enabled-strings = <0 1>; };