From patchwork Mon May 23 10:47:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Ranquet X-Patchwork-Id: 12858823 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB35DC433FE for ; Mon, 23 May 2022 10:52:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234572AbiEWKwJ (ORCPT ); Mon, 23 May 2022 06:52:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234667AbiEWKvp (ORCPT ); Mon, 23 May 2022 06:51:45 -0400 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 825082CCB6 for ; Mon, 23 May 2022 03:51:44 -0700 (PDT) Received: by mail-wm1-x32a.google.com with SMTP id y24so744728wmq.5 for ; Mon, 23 May 2022 03:51:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=L59GiR9dWwoU3bIhqqTo2XYxtqfhGwikIlZ2jdUecpc=; b=2GpBC1024UFGepfN4EeJgCuO1UN/4rP8fzM4ZTL1Oy3Eb3PQ2YbsieGfwd/wr19Az/ vWLap0skRbcSkUKW+aQZeMenpJ688qxeEMD6FtIdTctSUfNDjNU3ehuSa8LsbZCQyUSK Zy+t65L6dGDUIql6D2yeRE+ALRoFTHsQeKMF2wqO2ShIe7QcffeUStrl7exDqGkmebos xLpftSD8FbLe/y/SJYDwky1vcICDBek0D4TMe/W6PIp1v0fzs2QFFKULXHPK5y2KoT2H 8pWePMqWJBCozqwdHN94XLhrb7SeHk7Zo861HG5+ZCYdcczXlH57WTcJRxLCU2WW9NiG XpYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=L59GiR9dWwoU3bIhqqTo2XYxtqfhGwikIlZ2jdUecpc=; b=ZryCbrz6825Qwr/uuyj5UCoFThv10ZuCYpxXehhrCgnscNStgsbh8xeaBuNDyOf741 12XwTkyS2OzL5EodPweOw+oNRJUAEV7j22AUhdcCkXDO/ksYNclPI3eLYQ1ttx+w5tfL b5NqjH1BIGVzcDpe3xxijM7awGiJ1n3Jj4m6RMxVd2RRCQYDyQNM/RVwzYRICkzxxnZq 7GeIcNpB2TdgfNI9F8uJKmlV8sBE2OYrOtVW1bpiU0IuBHtNMf2mohB+sTWlQy/RkfiU xFJawJyFNKyC4VoJQ0Io00KtvLEY/9KuDEQg7Yk+7z+aIwFm3+M49S/cz1d2IJ4cbQ19 qjTQ== X-Gm-Message-State: AOAM533V10GK3kNrgoj0Ff2iXfYaxDhCB6S5VIIuZDq0dALKLJ8zBkLI FNq6duQAw1SueCnoeDWynhQqQw== X-Google-Smtp-Source: ABdhPJwNegNr44So8xq4D2p9JaCnMXp0VvpDOo2fky113Q7b9TeovIyeLXQjxBiFJh/CiujqFzERLQ== X-Received: by 2002:a05:600c:3048:b0:394:436b:76b6 with SMTP id n8-20020a05600c304800b00394436b76b6mr19844563wmh.63.1653303103041; Mon, 23 May 2022 03:51:43 -0700 (PDT) Received: from localhost.localdomain (2a02-8440-6141-9d1b-3074-96af-9642-0003.rev.sfr.net. [2a02:8440:6141:9d1b:3074:96af:9642:3]) by smtp.gmail.com with ESMTPSA id n11-20020a7bc5cb000000b003942a244f38sm8453607wmk.17.2022.05.23.03.51.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 May 2022 03:51:42 -0700 (PDT) From: Guillaume Ranquet To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Matthias Brugger , Chunfeng Yun , Kishon Vijay Abraham I , Vinod Koul , Helge Deller , CK Hu , Jitao shi Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org, linux-fbdev@vger.kernel.org Subject: [PATCH v10 15/21] drm/mediatek: dpi: Only enable dpi after the bridge is enabled Date: Mon, 23 May 2022 12:47:48 +0200 Message-Id: <20220523104758.29531-16-granquet@baylibre.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220523104758.29531-1-granquet@baylibre.com> References: <20220523104758.29531-1-granquet@baylibre.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Enabling the dpi too early causes glitches on screen. Move the call to mtk_dpi_enable() at the end of the bridge_enable callback to ensure everything is setup properly before enabling dpi. Signed-off-by: Guillaume Ranquet --- drivers/gpu/drm/mediatek/mtk_dpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 763bfb700135..a6b6d62a17e7 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -478,7 +478,6 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi) if (dpi->pinctrl && dpi->pins_dpi) pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi); - mtk_dpi_enable(dpi); return 0; err_pixel: @@ -711,6 +710,7 @@ static void mtk_dpi_bridge_enable(struct drm_bridge *bridge) mtk_dpi_power_on(dpi); mtk_dpi_set_display_mode(dpi, &dpi->mode); + mtk_dpi_enable(dpi); } static enum drm_mode_status