From mboxrd@z Thu Jan 1 00:00:00 1970 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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 576AFC433E0 for ; Fri, 26 Feb 2021 12:14:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F3B5064F0D for ; Fri, 26 Feb 2021 12:14:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230148AbhBZMNs (ORCPT ); Fri, 26 Feb 2021 07:13:48 -0500 Received: from m42-2.mailgun.net ([69.72.42.2]:47170 "EHLO m42-2.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229894AbhBZMNo (ORCPT ); Fri, 26 Feb 2021 07:13:44 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1614341604; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=Cmqghx6zhcQDDabwf+FgyE0f9AAgFN3Iix4YVts5sgY=; b=rve15hZ8X/Q5abxwY8Tmbrcslvsv42MEvTsd4El0574087/wcy9iViPaUPOoLLJDUTYbwvqE flOzmXx7sftYGNupmR6QGvwR+bH4Ui6oInFy7gzj+fWFzyJrOzO+wC/+HpIEzPxBte0HNcMw OSOZB4vaL9SAIDsfCJcTh1WO2xE= X-Mailgun-Sending-Ip: 69.72.42.2 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-east-1.postgun.com with SMTP id 6038e5c59a7cefa92a6a6f32 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 26 Feb 2021 12:12:53 GMT Sender: kgunda=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8635AC43463; Fri, 26 Feb 2021 12:12:52 +0000 (UTC) Received: from kgunda-linux.qualcomm.com (unknown [202.46.22.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: kgunda) by smtp.codeaurora.org (Postfix) with ESMTPSA id 3F910C433CA; Fri, 26 Feb 2021 12:12:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 3F910C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail 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, phone-devel@vger.kernel.org, Kiran Gunda Subject: [PATCH V2 0/2] Fix WLED FSC Sync and brightness Sync settings Date: Fri, 26 Feb 2021 17:42:22 +0530 Message-Id: <1614341544-5306-1-git-send-email-kgunda@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series has the following two WLED fixes 1. As per the current implementation, for WLED5, after the FSC (Full Scale Current) update the driver is incorrectly toggling the MOD_SYNC register instead of toggling the SYNC register. The patch 1/2 fixes this by toggling the SYNC register after FSC update. 2. Currently, the sync bits are transitioned from 1 to 0 after FSC and brightness update. As per hardware team recommendation the FSC and brightness sync takes place from 0 to 1 transition. The patch 2/2 fies this issue. Changes from V1: 1. Updated the cover letter. 2. Updated the description of the patches as per Daniel's suggestion. Kiran Gunda (2): backlight: qcom-wled: Fix FSC update issue for WLED5 backlight: qcom-wled: Correct the sync_toggle sequence drivers/video/backlight/qcom-wled.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project