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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4044FC433E0 for ; Mon, 22 Mar 2021 17:35:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1A3F619A8 for ; Mon, 22 Mar 2021 17:35:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231854AbhCVReo (ORCPT ); Mon, 22 Mar 2021 13:34:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230448AbhCVReS (ORCPT ); Mon, 22 Mar 2021 13:34:18 -0400 Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9924C061762 for ; Mon, 22 Mar 2021 10:34:16 -0700 (PDT) Received: by mail-ej1-x62b.google.com with SMTP id jy13so22627369ejc.2 for ; Mon, 22 Mar 2021 10:34:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=itvxu6pseNvAArTXkxBUqpwVqMnWpn85hJGn4Cdpwhg=; b=uNTiuiHb//r+7s512XtcPzPyLF04pqLQ3NrFXgaoxYNR2RU0pDoYy1ZNFTfKaRBx3R qUpdSxsLmTiozn+u05mEF/2mOns8JJqI3whi5eUsFhPYQd4a/eGXutlrOs1KdMC5vKXZ D5NfmKie5T8TXOEpLX3eqXPKF/2ibqi+auQ3HJUAWhdl0PiQcmhIE+gj58H/w7T4dyTb KY/Ex9Y+BtG5FhKLOWVluiKYgNltP/jhOs8Abi1ZipK2VPfsg0P3Rx5+52mA6aIxLF5Q D+A7SD93d2c23HV9ByoiID4u+zWDyy2KubD1XKv/mr87//jjBOOUc3lGWiUyiBSMvn7b dSLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=itvxu6pseNvAArTXkxBUqpwVqMnWpn85hJGn4Cdpwhg=; b=ubLUXuwY247s3aokktTTCRj6SCEPa0FWujRPvEugyrqpAIwRkYb8gH4m1UzQwlA0wT 1SCy+ngOdXulSTNAc5GIrKA/Tq32JhTcajeybWf+NbJEQkc5vW/oeOY5eOlnor7RzH6A /cgXUCmwvR+QrfJZXyTRedbnDJau4GSOMAuN+cqwyKULSEQCCIcRih9qjaJ/jMjGC9HW ftPCxIbXyzBTAyPruut6YKrZd9NkW06FkMF4smmvWc9GEtVaHCePJo8d9plSo8XDNe0O jU+fdNNzx1p71yVOcFoXXCJvYlW4kxQghXc8au5pafbYcmOvTtMt1v+7LCrJz+OzcbsL asww== X-Gm-Message-State: AOAM533zm5TbQiCCmygab4c38IxJXGqp9evO8J1smZKJKnQ0BUvAbGTW 7spKgF98vTX/pJJUpRgA+0yo6w== X-Google-Smtp-Source: ABdhPJw9FtwQ6aO2ECGVnHO58EnkDcEQ+fGQM9CFtqdocU6sXQqPcqwjPD5Dl/pLvT5flLaGRSP8fw== X-Received: by 2002:a17:906:340d:: with SMTP id c13mr934869ejb.29.1616434455577; Mon, 22 Mar 2021 10:34:15 -0700 (PDT) Received: from dell ([91.110.221.180]) by smtp.gmail.com with ESMTPSA id n3sm9867573ejj.113.2021.03.22.10.34.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 10:34:15 -0700 (PDT) Date: Mon, 22 Mar 2021 17:34:13 +0000 From: Lee Jones To: Kiran Gunda Cc: bjorn.andersson@linaro.org, jingoohan1@gmail.com, 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, phone-devel@vger.kernel.org, Andy Gross , linux-arm-msm@vger.kernel.org, linux-fbdev@vger.kernel.org Subject: Re: [PATCH V5 1/2] backlight: qcom-wled: Fix FSC update issue for WLED5 Message-ID: <20210322173413.GC2916463@dell> References: <1616071180-24493-1-git-send-email-kgunda@codeaurora.org> <1616071180-24493-2-git-send-email-kgunda@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1616071180-24493-2-git-send-email-kgunda@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org On Thu, 18 Mar 2021, Kiran Gunda wrote: > Currently, for WLED5, the FSC (Full scale current) setting is not > updated properly due to driver toggling the wrong register after > an FSC update. > > On WLED5 we should only toggle the MOD_SYNC bit after a brightness > update. For an FSC update we need to toggle the SYNC bits instead. > > Fix it by adopting the common wled3_sync_toggle() for WLED5 and > introducing new code to the brightness update path to compensate. > > Signed-off-by: Kiran Gunda > Reviewed-by: Daniel Thompson > --- > drivers/video/backlight/qcom-wled.c | 25 +++++++++++++++++++------ > 1 file changed, 19 insertions(+), 6 deletions(-) Applied, thanks. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog