From patchwork Fri Aug 27 08:24:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: cong yang X-Patchwork-Id: 12461533 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,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 5212AC432BE for ; Fri, 27 Aug 2021 08:24:23 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 12DBA60F91 for ; Fri, 27 Aug 2021 08:24:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 12DBA60F91 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=huaqin.corp-partner.google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4791E6E084; Fri, 27 Aug 2021 08:24:22 +0000 (UTC) Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by gabe.freedesktop.org (Postfix) with ESMTPS id 62FA66E06B for ; Fri, 27 Aug 2021 08:24:21 +0000 (UTC) Received: by mail-pl1-x632.google.com with SMTP id q3so3477612plx.4 for ; Fri, 27 Aug 2021 01:24:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=huaqin-corp-partner-google-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=SUMawJHmaVN55KeOYmXXMpF4IBtsM0ibJxP9InePT3U=; b=Fxz3N2mtWJOZp20H0H62tCm4G/B9tJRiU8nyFNZfIi03dLktL6JeLV2ddV8aeHW1XL rcTUerdmA+4w7InZ2c4LDfKKVXup97tUe1oyRvTdSpezfuA9IL6AALY0kkJfYHj4GkHC EK2gCHg/OgOTlOL/BxSwrORqv/CDstWDgqQi1ritbdlseNn/OXk0l8eZMjfEVnE3rnQM BldzUtyfqgYIwZeWJsTFGa+pKaBf4fJpGQ87mU+pNctj6pcBJUmPKQQ6/wQz990KGYYV QM+T3NnjCT3sOzbHkJQ6zTRKbxakaxgSYY0KnxKQDBtW1WOvHULBFzsGh9cC95CY0ef1 oTCQ== 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=SUMawJHmaVN55KeOYmXXMpF4IBtsM0ibJxP9InePT3U=; b=lJHgyrJNlpoDLVxpEJSZjiksqys+y8JjeB2QYqDa2T1FvXlLnpStplggUkJMIZXc6B Jfns2ncAIEr9R9hYGcdVjDAKF6oaroWM/UsFcWD0RYfJKX87uG1ZGmp51eQOIWxHP/X1 ZjPWVrZRBAl17HVHKEcuRNfPUwUct5szzls7YP9IeAORdQ+ZYoCAuZpKreoCBlyi73BW wWw/36Jdy2s0gxoElsQYRRDfm2dmp4ks2EzIeO66TFDapV/m7wIN8JhXi5LiS5SroDS/ N020V71tzv7I+6Tq4Wuy69I3coxoynikcSkFaCnZhwY71hAYiXf2NnFwUF5Jq2zbfS7K NlhA== X-Gm-Message-State: AOAM531l4bvE6SC6enxg2MLNG2X4YLbLAFLCSda/e6zs9UzNASQCTLw5 ijFqhimH7s0qP28puOoYeyXMhQ== X-Google-Smtp-Source: ABdhPJyzCDsAtLBRyrr7IK7R5ii+ILlKFQQetonZ4oNTJIEEdsAFGzET5At0VHFtXpVBYWGvRR/itg== X-Received: by 2002:a17:90a:7642:: with SMTP id s2mr21771104pjl.128.1630052660932; Fri, 27 Aug 2021 01:24:20 -0700 (PDT) Received: from yc.huaqin.com ([101.78.151.213]) by smtp.gmail.com with ESMTPSA id m18sm5391371pjq.32.2021.08.27.01.24.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Aug 2021 01:24:20 -0700 (PDT) From: yangcong To: thierry.reding@gmail.com, sam@ravnborg.org, airlied@linux.ie, daniel@ffwll.ch, dianders@google.com Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, yangcong Subject: [v3 1/4] drm/panel: boe-tv101wum-nl6: Support enabling a 3.3V rail Date: Fri, 27 Aug 2021 16:24:04 +0800 Message-Id: <20210827082407.101053-2-yangcong5@huaqin.corp-partner.google.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210827082407.101053-1-yangcong5@huaqin.corp-partner.google.com> References: <20210827082407.101053-1-yangcong5@huaqin.corp-partner.google.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The auo,b101uan08.3 panel (already supported by this driver) has a 3.3V rail that needs to be turned on. For previous users of this panel this voltage was directly output by pmic. On a new user (the not-yet-upstream sc7180-trogdor-mrbland board) we need to turn the 3.3V rail on. Add support in the driver for this. Signed-off-by: yangcong Reviewed-by: Douglas Anderson --- drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c index db9d0b86d542..9a644433629e 100644 --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c @@ -45,6 +45,7 @@ struct boe_panel { const struct panel_desc *desc; enum drm_panel_orientation orientation; + struct regulator *pp3300; struct regulator *pp1800; struct regulator *avee; struct regulator *avdd; @@ -511,6 +512,7 @@ static int boe_panel_unprepare(struct drm_panel *panel) gpiod_set_value(boe->enable_gpio, 0); usleep_range(5000, 7000); regulator_disable(boe->pp1800); + regulator_disable(boe->pp3300); } else { gpiod_set_value(boe->enable_gpio, 0); usleep_range(500, 1000); @@ -518,6 +520,7 @@ static int boe_panel_unprepare(struct drm_panel *panel) regulator_disable(boe->avdd); usleep_range(5000, 7000); regulator_disable(boe->pp1800); + regulator_disable(boe->pp3300); } boe->prepared = false; @@ -536,6 +539,10 @@ static int boe_panel_prepare(struct drm_panel *panel) gpiod_set_value(boe->enable_gpio, 0); usleep_range(1000, 1500); + ret = regulator_enable(boe->pp3300); + if (ret < 0) + return ret; + ret = regulator_enable(boe->pp1800); if (ret < 0) return ret; @@ -767,6 +774,10 @@ static int boe_panel_add(struct boe_panel *boe) if (IS_ERR(boe->avee)) return PTR_ERR(boe->avee); + boe->pp3300 = devm_regulator_get(dev, "pp3300"); + if (IS_ERR(boe->pp3300)) + return PTR_ERR(boe->pp3300); + boe->pp1800 = devm_regulator_get(dev, "pp1800"); if (IS_ERR(boe->pp1800)) return PTR_ERR(boe->pp1800);