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From: Heiko Stuebner <heiko@sntech.de>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Sandy Huang <hjc@rock-chips.com>,
	Andy Yan <andy.yan@rock-chips.com>,
	Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org,
	Diederik de Haas <diederik@cknow-tech.com>,
	Maud Spierings <maud_spierings@hotmail.com>
Subject: Re: [PATCH v5 02/10] drm/bridge: Add detect_ctx hook and drm_bridge_detect_ctx() helper
Date: Mon, 27 Apr 2026 13:00:35 +0200	[thread overview]
Message-ID: <11399494.CDJkKcVGEf@phil> (raw)
In-Reply-To: <20260426-dw-hdmi-qp-scramb-v5-2-d778e70c317b@collabora.com>

Am Sonntag, 26. April 2026, 02:20:14 Mitteleuropäische Sommerzeit schrieb Cristian Ciocaltea:
> Add an atomic-aware .detect_ctx() callback to drm_bridge_funcs and a
> drm_bridge_detect_ctx() helper that accepts an optional
> drm_modeset_acquire_ctx.
> 
> This enables bridge drivers to perform operations requiring modeset
> locking during connector detection, such as SCDC management for HDMI
> 2.0.  When both ->detect_ctx and ->detect are defined, the former takes
> precedence.  When ctx is NULL, locking is managed internally with EDEADLK
> retry.
> 
> Tested-by: Diederik de Haas <diederik@cknow-tech.com>
> Tested-by: Maud Spierings <maud_spierings@hotmail.com>
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>

while this looks sane to me, my drm insights are spotty, so I can
only provide the lighter

Acked-by: Heiko Stuebner <heiko@sntech.de>



WARNING: multiple messages have this Message-ID (diff)
From: Heiko Stuebner <heiko@sntech.de>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Sandy Huang <hjc@rock-chips.com>,
	Andy Yan <andy.yan@rock-chips.com>,
	Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org,
	Diederik de Haas <diederik@cknow-tech.com>,
	Maud Spierings <maud_spierings@hotmail.com>
Subject: Re: [PATCH v5 02/10] drm/bridge: Add detect_ctx hook and drm_bridge_detect_ctx() helper
Date: Mon, 27 Apr 2026 13:00:35 +0200	[thread overview]
Message-ID: <11399494.CDJkKcVGEf@phil> (raw)
In-Reply-To: <20260426-dw-hdmi-qp-scramb-v5-2-d778e70c317b@collabora.com>

Am Sonntag, 26. April 2026, 02:20:14 Mitteleuropäische Sommerzeit schrieb Cristian Ciocaltea:
> Add an atomic-aware .detect_ctx() callback to drm_bridge_funcs and a
> drm_bridge_detect_ctx() helper that accepts an optional
> drm_modeset_acquire_ctx.
> 
> This enables bridge drivers to perform operations requiring modeset
> locking during connector detection, such as SCDC management for HDMI
> 2.0.  When both ->detect_ctx and ->detect are defined, the former takes
> precedence.  When ctx is NULL, locking is managed internally with EDEADLK
> retry.
> 
> Tested-by: Diederik de Haas <diederik@cknow-tech.com>
> Tested-by: Maud Spierings <maud_spierings@hotmail.com>
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>

while this looks sane to me, my drm insights are spotty, so I can
only provide the lighter

Acked-by: Heiko Stuebner <heiko@sntech.de>



_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

  reply	other threads:[~2026-04-27 11:00 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-26  0:20 [PATCH v5 00/10] Add HDMI 2.0 support to DW HDMI QP TX Cristian Ciocaltea
2026-04-26  0:20 ` Cristian Ciocaltea
2026-04-26  0:20 ` [PATCH v5 01/10] drm/bridge: Remove redundant error check in drm_bridge_helper_reset_crtc() Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 21:46   ` Dmitry Baryshkov
2026-04-27 21:46     ` Dmitry Baryshkov
2026-04-26  0:20 ` [PATCH v5 02/10] drm/bridge: Add detect_ctx hook and drm_bridge_detect_ctx() helper Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 11:00   ` Heiko Stuebner [this message]
2026-04-27 11:00     ` Heiko Stuebner
2026-04-26  0:20 ` [PATCH v5 03/10] drm/bridge-connector: Use cached connector status in .get_modes() Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 21:52   ` Dmitry Baryshkov
2026-04-27 21:52     ` Dmitry Baryshkov
2026-04-26  0:20 ` [PATCH v5 04/10] drm/bridge-connector: Switch to .detect_ctx() for connector detection Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 21:54   ` Dmitry Baryshkov
2026-04-27 21:54     ` Dmitry Baryshkov
2026-04-26  0:20 ` [PATCH v5 05/10] drm/bridge: dw-hdmi-qp: Add HDMI 2.0 SCDC scrambling and high TMDS clock ratio support Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 10:49   ` Heiko Stuebner
2026-04-27 10:49     ` Heiko Stuebner
2026-04-27 16:39     ` Cristian Ciocaltea
2026-04-27 16:39       ` Cristian Ciocaltea
2026-04-27 19:09       ` Heiko Stuebner
2026-04-27 19:09         ` Heiko Stuebner
2026-04-27 19:10   ` Heiko Stuebner
2026-04-27 19:10     ` Heiko Stuebner
2026-04-28  1:38   ` Dmitry Baryshkov
2026-04-28  1:38     ` Dmitry Baryshkov
2026-04-28 13:51     ` Cristian Ciocaltea
2026-04-28 13:51       ` Cristian Ciocaltea
2026-05-05  0:45       ` Dmitry Baryshkov
2026-05-05  0:45         ` Dmitry Baryshkov
2026-06-01  4:06   ` Andy Yan
2026-06-01  4:06     ` Andy Yan
2026-06-01 16:29     ` Cristian Ciocaltea
2026-06-01 16:29       ` Cristian Ciocaltea
2026-04-26  0:20 ` [PATCH v5 06/10] drm/bridge: dw-hdmi-qp: Rate limit i2c read error messages Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 10:41   ` Heiko Stuebner
2026-04-27 10:41     ` Heiko Stuebner
2026-04-26  0:20 ` [PATCH v5 07/10] drm/rockchip: dw_hdmi_qp: Add missing newlines in dev_err_probe() messages Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 10:39   ` Heiko Stuebner
2026-04-27 10:39     ` Heiko Stuebner
2026-04-28  1:40   ` Dmitry Baryshkov
2026-04-28  1:40     ` Dmitry Baryshkov
2026-04-26  0:20 ` [PATCH v5 08/10] drm/rockchip: dw_hdmi_qp: Use local dev variable consistently in bind() Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-27 10:39   ` Heiko Stuebner
2026-04-27 10:39     ` Heiko Stuebner
2026-04-26  0:20 ` [PATCH v5 09/10] drm/rockchip: dw_hdmi_qp: Register HPD IRQ after connector setup Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-28  1:41   ` Dmitry Baryshkov
2026-04-28  1:41     ` Dmitry Baryshkov
2026-04-28 13:58     ` Cristian Ciocaltea
2026-04-28 13:58       ` Cristian Ciocaltea
2026-04-26  0:20 ` [PATCH v5 10/10] drm/rockchip: dw_hdmi_qp: Restrict HPD event to the affected connector Cristian Ciocaltea
2026-04-26  0:20   ` Cristian Ciocaltea
2026-04-28  1:53   ` Dmitry Baryshkov
2026-04-28  1:53     ` Dmitry Baryshkov
2026-04-28 14:10     ` Cristian Ciocaltea
2026-04-28 14:10       ` Cristian Ciocaltea

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