From patchwork Wed Jul 28 16:45:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 488837 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=-19.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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, 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 28F1EC4320A for ; Wed, 28 Jul 2021 16:46:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11B3C6103C for ; Wed, 28 Jul 2021 16:46:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230420AbhG1Qqk (ORCPT ); Wed, 28 Jul 2021 12:46:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230437AbhG1Qqg (ORCPT ); Wed, 28 Jul 2021 12:46:36 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F2E6C0613C1 for ; Wed, 28 Jul 2021 09:46:34 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id mz5-20020a17090b3785b0290176ecf64922so10951195pjb.3 for ; Wed, 28 Jul 2021 09:46:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=STTl4syxhYiPqJGJCa+c8pqgWqmaNxb9nZtqbCu6WMo=; b=QWHU5ALALIEjB1vtvsSgIbBoC2aClYOpIbtSW/QDyYyH+c2F1pfyECpkrN3rmgsm6i A0lmVM8zTixkvAkL2P5knid03Yo4AALld7DxGYqcZTvj8BNHj5+Jme9kqrGVpy8DKQyh 5oI3ir3kL5Qk6DLy5mr6Oj2jIGE141p369RBI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=STTl4syxhYiPqJGJCa+c8pqgWqmaNxb9nZtqbCu6WMo=; b=a0LyTs7EMljFyxm81NmQPJ68VXjZPKv3sDleDa5S3hVFZ/zEoTPb8ltm7++NBArCTx fen+tDDT9KCY7xH5fm94ax2e37Z66wH+nmcZ5QCkD2xgjxhAtmKf/lVB3bvlI3dL/OI4 q7kxJY6qAt1cGAGJeCzHXJX6csY3sSbxRmrz7ub/UGLTWEOKir0lpMGxb3Y5XN+PCBJ4 R/Oq8ch6XcnHhEwFO5jW7IIOQdgsknq0g4dQCNgvP1cgkr5KiZ6F0lx9tiIqynHn32Je fDA8mDNL7Va7kRA298KJnd9PrErOUpkofkyeTxi1miLwHax5Hgy61LzgPzeA4lxmqWWO Jljg== X-Gm-Message-State: AOAM532OY5dsEdPFSBZjq6GL99JB01ihZhEYTf+Ph4KbSJHq0wcNleP3 gN9IAznSG0hd3zPPC3C/efUYiA== X-Google-Smtp-Source: ABdhPJxNVqhXZn98YSnXaLQyTmtbqfu8/DRzlEzSAFdrRH1VB3dmQ8nadXOOJcwvq6NRJX5kfsyppA== X-Received: by 2002:a05:6a00:1582:b029:332:67bf:c196 with SMTP id u2-20020a056a001582b029033267bfc196mr768393pfk.52.1627490793917; Wed, 28 Jul 2021 09:46:33 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:9f1e:e713:1a5e:89dc]) by smtp.gmail.com with ESMTPSA id l12sm474075pff.182.2021.07.28.09.46.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jul 2021 09:46:33 -0700 (PDT) From: Douglas Anderson To: dri-devel@lists.freedesktop.org Cc: tzimmermann@suse.de, linux-arm-msm@vger.kernel.org, a.hajda@samsung.com, sam@ravnborg.org, airlied@linux.ie, bjorn.andersson@linaro.org, daniel@ffwll.ch, devicetree@vger.kernel.org, rodrigo.vivi@intel.com, jonas@kwiboo.se, narmstrong@baylibre.com, Laurent.pinchart@ideasonboard.com, robert.foss@linaro.org, jernej.skrabec@gmail.com, mripard@kernel.org, linus.walleij@linaro.org, maarten.lankhorst@linux.intel.com, rajeevny@codeaurora.org, lyude@redhat.com, thierry.reding@gmail.com, steev@kali.org, Douglas Anderson , linux-kernel@vger.kernel.org Subject: [PATCH 5/6] Revert "drm/panel-simple: Support for delays between GPIO & regulator" Date: Wed, 28 Jul 2021 09:45:56 -0700 Message-Id: <20210728094511.5.Ie44e3e5b7a926392541d575ca84c56931596513f@changeid> X-Mailer: git-send-email 2.32.0.432.gabb21c7263-goog In-Reply-To: <20210728164557.1882787-1-dianders@chromium.org> References: <20210728164557.1882787-1-dianders@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This reverts commit 18a1488bf1e13fc3fc96d7948466b2166067c6c8. Those delays were added to support the Samsung ATNA33XC20 panel. However, we've moving that to its own panel driver and out of panel-simple. That means we don't need the ability to specify this delay. NOTE: it's unlikely we want to keep this delay "just in case" some other panel needs it. The enable-gpio and the power supply are really supposed to be different ways to specify the same thing: the main enable of the panel. Supporting a delay between them doesn't really make sense. Signed-off-by: Douglas Anderson --- drivers/gpu/drm/panel/panel-simple.c | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index c8694f7f8e0f..ff8b59471c71 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -132,22 +132,6 @@ struct panel_desc { */ unsigned int prepare_to_enable; - /** - * @delay.power_to_enable: Time for the power to enable the display on. - * - * The time (in milliseconds) to wait after powering up the display - * before asserting its enable pin. - */ - unsigned int power_to_enable; - - /** - * @delay.disable_to_power_off: Time for the disable to power the display off. - * - * The time (in milliseconds) to wait before powering off the display - * after deasserting its enable pin. - */ - unsigned int disable_to_power_off; - /** * @delay.enable: Time for the panel to display a valid frame. * @@ -363,10 +347,6 @@ static int panel_simple_suspend(struct device *dev) struct panel_simple *p = dev_get_drvdata(dev); gpiod_set_value_cansleep(p->enable_gpio, 0); - - if (p->desc->delay.disable_to_power_off) - msleep(p->desc->delay.disable_to_power_off); - regulator_disable(p->supply); p->unprepared_time = ktime_get(); @@ -427,9 +407,6 @@ static int panel_simple_prepare_once(struct panel_simple *p) return err; } - if (p->desc->delay.power_to_enable) - msleep(p->desc->delay.power_to_enable); - gpiod_set_value_cansleep(p->enable_gpio, 1); delay = p->desc->delay.prepare; @@ -803,11 +780,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc, break; } - if (!panel->enable_gpio && desc->delay.disable_to_power_off) - dev_warn(dev, "Need a delay after disabling panel GPIO, but a GPIO wasn't provided\n"); - if (!panel->enable_gpio && desc->delay.power_to_enable) - dev_warn(dev, "Need a delay before enabling panel GPIO, but a GPIO wasn't provided\n"); - dev_set_drvdata(dev, panel); /*