From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A471C3B52E3; Mon, 8 Jun 2026 08:39:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780907963; cv=none; b=VNxl81S5lWUMaarvS1JBX8qN+UQmRPIooAN79sfzgW7/ibTAyab97NXetLm6/Bzf7SbsryVMSFQBxZXBylBEP/RSiCDtQr/ZGim0MgM/kq/7rv5N9V5+GQPzZtQde3P680zSk9uR+/GjjDKaU2pypCXQX87ZcVwWIrERnkn/lfo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780907963; c=relaxed/simple; bh=q8s1zTU58iFe+zdgS/e7lbRGxUG0XvphM7kagmhTrBU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fcSdjoGWVIqUd+RnSDzRw+mTDu6stnI2RBUzLdbaJaZUIwvK61dw8DxHMMou55ZCPCocNKk9q0FkILxXg6tG9qY8Pwi9/bvcIsyL6lRDRkjdnxSrJEtkEh15CMJ4Mg/Tw4ONjM4AE0OV2M4U8PKkw2IyeG5oI5xIw5NQUwTebyQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=k0CkhSSu; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="k0CkhSSu" Received: from francesco-nb (xcpe-178-82-120-96.dyn.res.sunrise.net [178.82.120.96]) by mail11.truemail.it (Postfix) with ESMTPA id CE9F41FC18; Mon, 8 Jun 2026 10:39:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1780907957; bh=z8UFPckcbkUDtOhYm05+yDC1pbRjWLGHos3Y900ReCg=; h=From:To:Subject; b=k0CkhSSuENH6FvKBjSYNZqeeBs0nsjwzBN7/rWsUL39SC6f99XSrqQBMKFB57XHrd 3I8h/qU+JaiL9PImIm+fRWgEURAlZsg+f6eiqkez2YVTzhHqLybK219HsDvkbDoqI3 dM4IMHjgbC49Y7YiW/j9OtVVLjStJ5biCTWGGtjXn9zPcit2UxxQjslLiDtDhtZmzZ WnS/Mwz1fHg9p3qzbaIODY+ZdLF/BHd/P7MLF2aAX0JID2Crf3q5aUUGWFvUbsd9pF mK+nMKrowzyVzDHOpjAZ3SxbAStwTG5WA+EKfecTWhcLrCP3Gi+iVMNM8iNungmUR7 MjXbLTJ+8CuiQ== Date: Mon, 8 Jun 2026 10:39:11 +0200 From: Francesco Dolcini To: Dmitry Baryshkov Cc: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Heikki Krogerus , Greg Kroah-Hartman , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Adrien Grassein , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Tomi Valkeinen , Bjorn Andersson , Konrad Dybcio , Pengyu Luo , Nikita Travkin , Yongxing Mou , Luca Ceresoli , Francesco Dolcini , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org Subject: Re: [PATCH v4 4/8] drm/bridge: pass extra events to the HPD callback Message-ID: <20260608083911.GA35760@francesco-nb> References: <20260608-hpd-irq-events-v4-0-30b62b335487@oss.qualcomm.com> <20260608-hpd-irq-events-v4-4-30b62b335487@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260608-hpd-irq-events-v4-4-30b62b335487@oss.qualcomm.com> On Mon, Jun 08, 2026 at 12:33:05AM +0300, Dmitry Baryshkov wrote: > The DisplayPort standard defines a special kind of HPD events called > IRQ_HPD. These events are used to notify DP Source about the events on > the Sink side. > > Bridge drivers report these events through the > drm_bridge_hpd_notify_extra(). Pass down the extra status to the HPD > callback, specified during the drm_bridge_hpd_enable(), letting > underlying drivers (e.g. drm_bridge_connector) to receive these events. > > Signed-off-by: Dmitry Baryshkov Acked-by: Francesco Dolcini # lt8912b