From patchwork Fri Nov 20 09:42:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 11919811 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_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 9213AC63777 for ; Fri, 20 Nov 2020 09:42:20 +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 2469A223B0 for ; Fri, 20 Nov 2020 09:42:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="tI0i1Hgo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2469A223B0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 39F2E6E896; Fri, 20 Nov 2020 09:42:18 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 88A7A6E890 for ; Fri, 20 Nov 2020 09:42:12 +0000 (UTC) Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 228D62240A; Fri, 20 Nov 2020 09:42:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605865332; bh=iQcVnrGpf37U4002Avz2RPHVjfPk0q8ZDK+TTqhRmEU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tI0i1HgoMJfpibnKglXJjmS1wJO8PAk9CTLWx2bG4/DhR/xFFoQhhHvyKfMTQ7YQp /kYqRu+xQDD/bOwUT1E60aktiEEdq46ogUSv9OGITvPFZvm4Utwctfj6FJTV3Csgmz 1mYvZpBIy4k2GzKUYWWF7ih/FQ8J1cxwfJYmxzQc= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1kg2vi-00CDFB-92; Fri, 20 Nov 2020 09:42:10 +0000 From: Marc Zyngier To: Neil Armstrong , Kevin Hilman Subject: [PATCH 2/2] drm/meson: dw-hdmi: Enable the iahb clock early enough Date: Fri, 20 Nov 2020 09:42:05 +0000 Message-Id: <20201120094205.525228-3-maz@kernel.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201120094205.525228-1-maz@kernel.org> References: <20201120094205.525228-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: narmstrong@baylibre.com, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, guillaume.tucker@collabora.com, kernel-team@android.com, dri-devel@lists.freedesktop.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false 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: , Cc: Martin Blumenstingl , Guillaume Tucker , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-amlogic@lists.infradead.org, kernel-team@android.com, linux-arm-kernel@lists.infradead.org, Jerome Brunet Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Instead of moving meson_dw_hdmi_init() around which breaks existing platform, let's enable the clock meson_dw_hdmi_init() depends on. This means we don't have to worry about this clock being enabled or not, depending on the boot-loader features. Fixes: b33340e33acd ("drm/meson: dw-hdmi: Ensure that clocks are enabled before touching the TOP registers") Reported-by: Guillaume Tucker Tested-by: Guillaume Tucker Signed-off-by: Marc Zyngier Reviewed-by: Neil Armstrong --- drivers/gpu/drm/meson/meson_dw_hdmi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index 29623b309cb1..aad75a22dc33 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -1051,6 +1051,10 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, if (ret) return ret; + ret = meson_enable_clk(dev, "iahb"); + if (ret) + return ret; + ret = meson_enable_clk(dev, "venci"); if (ret) return ret; @@ -1086,6 +1090,8 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, encoder->possible_crtcs = BIT(0); + meson_dw_hdmi_init(meson_dw_hdmi); + DRM_DEBUG_DRIVER("encoder initialized\n"); /* Bridge / Connector */ @@ -1110,8 +1116,6 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, if (IS_ERR(meson_dw_hdmi->hdmi)) return PTR_ERR(meson_dw_hdmi->hdmi); - meson_dw_hdmi_init(meson_dw_hdmi); - next_bridge = of_drm_find_bridge(pdev->dev.of_node); if (next_bridge) drm_bridge_attach(encoder, next_bridge,