From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A9DE72DEA94; Tue, 8 Jul 2025 16:51:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751993472; cv=none; b=FE/PCfJM0fJDaZWxoTmhkiUQ+PY1a5zV/ALHSvLm2xmDUQmn2+BbuVsDt2mGQXcXRa5kFcOSO7/X2QNTdOgVLZ4F1PPVLac2hvjz2kNidLIPp8uqJmoADSCsGTd1ep24pQZgW5wvL4DGoH+NAWyaZmdndcWTfd69ukeNsXChCn8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751993472; c=relaxed/simple; bh=fkANsOTaA92nYBJ+YSA7iv+karP6h0A4Y07boWwI22k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XAw6aMd6/WOL68DbW1FzS6Kim6/TY0m3xKMOkzQ8/Zrt9Jx7wJzOQKPR5XA5PWEjT6PtjrZK4AYgoFFXby9gAII4YiQfirxioV+rc9nCD6cja3JtdRHwXxbO9paKycSjhrCdfHi580e5yT88YhNSrPeVjTgY4qrdkmlxdWflwNk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RwaCFWqy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="RwaCFWqy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3324FC4CEED; Tue, 8 Jul 2025 16:51:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1751993472; bh=fkANsOTaA92nYBJ+YSA7iv+karP6h0A4Y07boWwI22k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RwaCFWqyJTT9P7eOahWGLZ7eLRBezc53rtFgqng6SBR/XOJ0iGeAHuINLGxFf0taa uKFaKQcML3FOAB3yPx3rxzlABJ59YSNn4V8IjSApwbL3GCf2BIdvJNR2sPlo/+3MNb VsPtYoLscdYK2wloRTng9KGRec3zhZ4OXzuero3E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dmitry Baryshkov , Neil Armstrong , Sasha Levin Subject: [PATCH 6.15 086/178] drm/bridge: aux-hpd-bridge: fix assignment of the of_node Date: Tue, 8 Jul 2025 18:22:03 +0200 Message-ID: <20250708162238.926867350@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250708162236.549307806@linuxfoundation.org> References: <20250708162236.549307806@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Baryshkov [ Upstream commit e8537cad824065b0425fb0429e762e14a08067c2 ] Perform fix similar to the one in the commit 85e444a68126 ("drm/bridge: Fix assignment of the of_node of the parent to aux bridge"). The assignment of the of_node to the aux HPD bridge needs to mark the of_node as reused, otherwise driver core will attempt to bind resources like pinctrl, which is going to fail as corresponding pins are already marked as used by the parent device. Fix that by using the device_set_of_node_from_dev() helper instead of assigning it directly. Fixes: e560518a6c2e ("drm/bridge: implement generic DP HPD bridge") Signed-off-by: Dmitry Baryshkov Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250608-fix-aud-hpd-bridge-v1-1-4641a6f8e381@oss.qualcomm.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/aux-hpd-bridge.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/aux-hpd-bridge.c b/drivers/gpu/drm/bridge/aux-hpd-bridge.c index 48f297c78ee67..1ec4f16b9939d 100644 --- a/drivers/gpu/drm/bridge/aux-hpd-bridge.c +++ b/drivers/gpu/drm/bridge/aux-hpd-bridge.c @@ -64,10 +64,11 @@ struct auxiliary_device *devm_drm_dp_hpd_bridge_alloc(struct device *parent, str adev->id = ret; adev->name = "dp_hpd_bridge"; adev->dev.parent = parent; - adev->dev.of_node = of_node_get(parent->of_node); adev->dev.release = drm_aux_hpd_bridge_release; adev->dev.platform_data = of_node_get(np); + device_set_of_node_from_dev(&adev->dev, parent); + ret = auxiliary_device_init(adev); if (ret) { of_node_put(adev->dev.platform_data); -- 2.39.5