From patchwork Tue Aug 3 16:26:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Patchwork-Id: 491755 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 194CDC432BE for ; Tue, 3 Aug 2021 16:27:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 049EA610A0 for ; Tue, 3 Aug 2021 16:27:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233483AbhHCQ1V (ORCPT ); Tue, 3 Aug 2021 12:27:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60614 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233464AbhHCQ1V (ORCPT ); Tue, 3 Aug 2021 12:27:21 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E0B7C061757; Tue, 3 Aug 2021 09:27:10 -0700 (PDT) Received: from localhost.localdomain (unknown [IPv6:2804:14c:1a9:2434:b693:c9:5cb6:b688]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: nfraprado) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 13F7D1F423F0; Tue, 3 Aug 2021 17:27:03 +0100 (BST) From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= To: Pavel Machek , Dan Murphy , Bjorn Andersson , Andy Gross , Rob Herring , Jacek Anaszewski Cc: linux-leds@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Brian Masney , Luca Weiss , Russell King , Georgi Djakov , linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, ~lkcamp/patches@lists.sr.ht, =?utf-8?q?Andr=C3=A9_Almeida?= , kernel@collabora.com Subject: [PATCH v3 1/5] dt-bindings: leds: Add binding for qcom-spmi-flash Date: Tue, 3 Aug 2021 13:26:37 -0300 Message-Id: <20210803162641.1525980-2-nfraprado@collabora.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210803162641.1525980-1-nfraprado@collabora.com> References: <20210803162641.1525980-1-nfraprado@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add devicetree binding for Qualcomm's SPMI Flash LEDs which are part of the PM8941 PMIC. These LEDs are used both as lantern and camera flash on phones based on the MSM8974 SoC, like the Nexus 5. Signed-off-by: Nícolas F. R. A. Prado Reviewed-by: Rob Herring --- Changes in v3: - Removed clamp-curr, headroom, startup-dly and safety-timer properties since they didn't impact the behavior. They're now hardcoded in the driver (patch 2) - Added valid ranges for led-max-microamp, flash-max-microamp and flash-max-timeout-us - Removed dt-bindings header file that held some constants (moved to inside the driver in patch 2) Added in v2 .../bindings/leds/leds-qcom-spmi-flash.yaml | 93 +++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml new file mode 100644 index 000000000000..da674d73c033 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-qcom-spmi-flash.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SPMI Flash LEDs + +maintainers: + - Nícolas F. R. A. Prado + +description: | + The Qualcomm SPMI Flash LEDs are part of Qualcomm PMICs and are used primarily + as a camera or video flash. They can also be used as a lantern when on torch + mode. + The PMIC is connected to Host processor via SPMI bus. + +properties: + compatible: + const: qcom,spmi-flash-leds + + reg: + maxItems: 1 + + flash-boost-supply: + description: SMBB regulator for LED flash mode + + torch-boost-supply: + description: SMBB regulator for LED torch mode + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +patternProperties: + "^led@[0-1]$": + type: object + $ref: common.yaml# + + properties: + reg: + maxItems: 1 + + led-max-microamp: + minimum: 12500 + maximum: 200000 + multipleOf: 12500 + + flash-max-microamp: + minimum: 12500 + maximum: 1000000 + multipleOf: 12500 + + flash-max-timeout-us: + minimum: 10000 + maximum: 1280000 + multipleOf: 10000 + + required: + - reg + +required: + - compatible + - reg + - flash-boost-supply + - torch-boost-supply + +additionalProperties: false + +examples: + - | + #include + + spmi-flash-leds@d300 { + compatible = "qcom,spmi-flash-leds"; + reg = <0xd300 0x100>; + flash-boost-supply = <&pm8941_5vs1>; + torch-boost-supply = <&pm8941_5v>; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0>; + function = LED_FUNCTION_FLASH; + color = ; + led-max-microamp = <200000>; + flash-max-microamp = <1000000>; + flash-max-timeout-us = <1280000>; + }; + }; +...