From nobody Thu Dec 18 13:00:00 2025 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 E803BC32772 for ; Tue, 23 Aug 2022 09:06:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347260AbiHWJGf (ORCPT ); Tue, 23 Aug 2022 05:06:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347967AbiHWJFe (ORCPT ); Tue, 23 Aug 2022 05:05:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E52385ABB; Tue, 23 Aug 2022 01:29:40 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3B99E6148F; Tue, 23 Aug 2022 08:28:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 45250C433D6; Tue, 23 Aug 2022 08:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661243325; bh=mfXabLGDY9gETB+b3ZUJCxSsB/UQoJhhDwkWQHOl0eE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HMb7UOJgHW5hnszlSjkSP1gty1Mu0OL2TtrHmA4xRi/qM6iGoq8X8/KwpSXL2Gz9V 7JTkDbU94yQ+HzHTtBEz8vSkLzJ5APqeWASm21KXS4l/lJNn2mY21ThWDJsmq6Mi62 QlH5eShxHLdbmi9UxxHwe6LSYYZ5nCGKOac0hHUM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Laurentiu Palcu , Laurent Pinchart , Sasha Levin Subject: [PATCH 5.19 242/365] drm/imx/dcss: get rid of HPD warning message Date: Tue, 23 Aug 2022 10:02:23 +0200 Message-Id: <20220823080128.356688743@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220823080118.128342613@linuxfoundation.org> References: <20220823080118.128342613@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Laurentiu Palcu [ Upstream commit 30bdc36b8c776cd4fce5de2a96ff28b37f96942f ] When DCSS + MIPI_DSI is used, and the last bridge in the chain supports HPD, we can see a "Hot plug detection already enabled" warning stack trace dump that's thrown when DCSS is initialized. The problem appeared when HPD was enabled by default in the bridge_connector initialization, which made the drm_bridge_connector_enable_hpd() call, in DCSS init path, redundant. So, let's remove that call. Fixes: 09077bc311658 ("drm/bridge_connector: enable HPD by default if suppo= rted") Signed-off-by: Laurentiu Palcu Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20220721120912.6639-1-l= aurentiu.palcu@oss.nxp.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/imx/dcss/dcss-kms.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.c b/drivers/gpu/drm/imx/dcss= /dcss-kms.c index 9b84df34a6a1..8cf3352d8858 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-kms.c +++ b/drivers/gpu/drm/imx/dcss/dcss-kms.c @@ -142,8 +142,6 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *d= css) =20 drm_kms_helper_poll_init(drm); =20 - drm_bridge_connector_enable_hpd(kms->connector); - ret =3D drm_dev_register(drm, 0); if (ret) goto cleanup_crtc; --=20 2.35.1