From patchwork Fri Dec 20 19:17:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 13917277 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3CB3EE7718C for ; Fri, 20 Dec 2024 19:17:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 86B8F10F041; Fri, 20 Dec 2024 19:17:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="gYwt+qsB"; dkim-atps=neutral Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1AC5710F039 for ; Fri, 20 Dec 2024 19:17:28 +0000 (UTC) Received: by mail-lf1-x12f.google.com with SMTP id 2adb3069b0e04-54026562221so2176683e87.1 for ; Fri, 20 Dec 2024 11:17:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1734722246; x=1735327046; darn=lists.freedesktop.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=1M6HwiDjtz6MVhwJBxGtnK97LOfqJCVvtnZY32TOfk0=; b=gYwt+qsBMkbTh6r1M1NuTcpVeoSeCoA/uzRXOx5nna9UbyhOYNQC5B1AD0iS7Ke7AA CXWJblCj54BrkdELbX5lTF6vUY+L6K01BWIsEjWE2jbSIKbbUew9aKCyUoe06Bhjrb6b Xs8vRg39UAx4GnG8yTX45cw4rFlXnVQVFlRdkgBwMMSrwYUdx5obFguqsj+uh0z8Oyln KvXnullHN51cblM8PMcW4HwVYfo+KSZq2fFzFrOFj224I4X+VtZBQ02sHSqmzGD9/T06 OnT/1ONVBM7PYlTzu9PpFe8wVlaHA7M4atyVx76jkgk+k2uQKe/4ImYHzauL/OHzz3kD 12Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734722246; x=1735327046; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1M6HwiDjtz6MVhwJBxGtnK97LOfqJCVvtnZY32TOfk0=; b=jNcLPhdK5Gbpk9aCuS958s9TGGhKAzdd4vuhxzRynU7YiJah6bc6d8mNT248ggTtZg SQMYClXw6+XC+h/dLcTXf4OHooKktKRR3tt3R0knYBOEV0ho3SKzPlR6J4wyb+z36WMp oloLciaINg1exxRTvcH7YT4/Dcm7CSsp9Y8h0oZBeD02ACgBzsNL3Pj4MowRylVgSXfE J0RJLq63I+qDdL5Nrm5s0e2wTQNTgtER3v3J9nnXY/4P/SF5fZJnwMdWm4FwCUUsYHB+ FhxVmfsquursfO2ltEnl2U1LpysS8pYQ/IjW5J0aWZhml7zUwr+ZQBkeAVGUh3VPMNEC Hhcw== X-Forwarded-Encrypted: i=1; AJvYcCWKFa++sUaCOClpX0Sr7K1+TocJvdJDYidPkelqeLnc7JyY/bPkEuM3ySeVD8ZQVajL3/pHEd3VzWA=@lists.freedesktop.org X-Gm-Message-State: AOJu0Yy40BL5v0qChFyHdui/nJdeEap52w290UczQnvsKR+S3n+5hRJY GW7adQZlqzbsgbrkvKzWo0GJI6wzY6A9O+DNwNkkbrZ/RlEXLCfdp1UXpwee6GQ= X-Gm-Gg: ASbGncsSJQanpA04AssMpEpfHivOFnoEMLpYBC+Kb4MPv6t9o5eIU3eKiipDj8sxy20 6PEuotnAn4o/I06PTDr06Mg/Qm8jyBYbQL0pXKP4zK0Y0LzePPtdU2IOblDxKo+w/IFtEL1DCGX itT9T6yUmK4pzUPfllXZPK7/5/rHJyF3xbi4pJOtieVCTY9ef8H9fbWvozWcV85ml5R3kyrKb5d AZ6R7Nxl4mv1Xqbz3X2jM1Qz95lZJ2hMZ2tyriXvdrBgTPU0ZIeLKIZR5BVvlbL X-Google-Smtp-Source: AGHT+IG6IFV0Usn+06DX+/zaMrThIrt7paHBBkdwNJGqDNn/1W/onv1N2MVoOyFetqejTIcJnFPd6A== X-Received: by 2002:a05:6512:398d:b0:542:23a9:bd44 with SMTP id 2adb3069b0e04-5422952e712mr1506321e87.17.1734722246359; Fri, 20 Dec 2024 11:17:26 -0800 (PST) Received: from umbar.lan ([192.130.178.90]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54223813877sm545141e87.149.2024.12.20.11.17.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Dec 2024 11:17:24 -0800 (PST) From: Dmitry Baryshkov Date: Fri, 20 Dec 2024 21:17:06 +0200 Subject: [PATCH v8 09/10] drm/vc4: hdmi: stop rereading EDID in get_modes() MIME-Version: 1.0 Message-Id: <20241220-drm-bridge-hdmi-connector-v8-9-2399dbae2990@linaro.org> References: <20241220-drm-bridge-hdmi-connector-v8-0-2399dbae2990@linaro.org> In-Reply-To: <20241220-drm-bridge-hdmi-connector-v8-0-2399dbae2990@linaro.org> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Phong LE , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Russell King , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Alain Volmat , Raphael Gallais-Pou , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Cana?= =?utf-8?q?l?= , Raspberry Pi Kernel Maintenance Cc: Jani Nikula , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1990; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=zd/Y8mBxMdBApDi5CzqJHH1RW7mj7RyJYMvyUl/+gqU=; b=owGbwMvMwMXYbdNlx6SpcZXxtFoSQ3rqofWGWfG2miK9Nk/kt60LsekVXBu+uC1vw6n5PZ3JJ /mC567uZDRmYWDkYpAVU2TxKWiZGrMpOezDjqn1MINYmUCmMHBxCsBE7E6y/w9W9tSe7sVjbvzR 8FBbRt5itZZTS70/l66Un94pOkuWwdH5lK71svhJ7IVTW8v/1E+7um8Oq/SHghieD8s8E36nX22 dYGtvPbPjkG758bt7Azk9c/X7bd+um6nE2PPeUjfWRN2Gr2P7Ce30e0Wr4+6KWfuXijlJxD0qzG gT5extinq5dKNmBvuX+iVXf9esOtz1siHufcyqFG19p2yZy68X5z4IvpRutuFxufLa2D/85/sCA 7/nH2SZf2G25Ulhz2zR7KP7F0Y3i/VcX1Jt2vEozPjs6pcbPiy4kXkuZvpnPaknzj3r2nPNcl0t rX6qH1qxql3BNHpX5armvlVFP34LG4pxvVDZeeS+x+2ZAA== X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A 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 vc4_hdmi_connector_detect_ctx() via vc4_hdmi_handle_hotplug() already reads EDID and propagates it to the drm_connector. Stop rereading EDID as a part of the .get_modes() callback and just update the list of modes. This matches the behaviour of the i915 driver. Acked-by: Maxime Ripard Tested-by: Dave Stevenson Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/vc4/vc4_hdmi.c | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 24199b511f2ee1bc3aa5f4a30e9d3d928d556ff1..5282dd765cc9478361a705dca85f615015b12e8e 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -470,31 +470,10 @@ static int vc4_hdmi_connector_detect_ctx(struct drm_connector *connector, static int vc4_hdmi_connector_get_modes(struct drm_connector *connector) { - struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector); struct vc4_dev *vc4 = to_vc4_dev(connector->dev); - const struct drm_edid *drm_edid; int ret = 0; - /* - * NOTE: This function should really take vc4_hdmi->mutex, but doing so - * results in reentrancy issues since cec_s_phys_addr() might call - * .adap_enable, which leads to that funtion being called with our mutex - * held. - * - * Concurrency isn't an issue at the moment since we don't share - * any state with any of the other frameworks so we can ignore - * the lock for now. - */ - - drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc); - drm_edid_connector_update(connector, drm_edid); - cec_s_phys_addr(vc4_hdmi->cec_adap, - connector->display_info.source_physical_address, false); - if (!drm_edid) - return 0; - ret = drm_edid_connector_add_modes(connector); - drm_edid_free(drm_edid); if (!vc4->hvs->vc5_hdmi_enable_hdmi_20) { struct drm_device *drm = connector->dev;