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Mon, 02 Sep 2024 19:02:05 -0700 (PDT) From: Dmitry Baryshkov Date: Tue, 03 Sep 2024 05:01:58 +0300 Subject: [PATCH v5 3/3] drm/bridge-connector: reset the HDMI connector state Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240903-drm-bridge-connector-fix-hdmi-reset-v5-3-daebde6d9857@linaro.org> References: <20240903-drm-bridge-connector-fix-hdmi-reset-v5-0-daebde6d9857@linaro.org> In-Reply-To: <20240903-drm-bridge-connector-fix-hdmi-reset-v5-0-daebde6d9857@linaro.org> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Laurentiu Palcu , Lucas Stach , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Paul Cercueil , Anitha Chrisanthus , Edmund Dea , Chun-Kuang Hu , Philipp Zabel , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , Tomi Valkeinen , Kieran Bingham , Biju Das , Geert Uytterhoeven , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Jyri Sarha , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2407; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=/mT5/AR35rbIDoBCMIT6yhd22qoLCIO/78RuGNtcQT0=; b=owGbwMvMwMXYbdNlx6SpcZXxtFoSQ9q1PMnqI1KVspetFZi3Gl8JEpLtUs6+nOiyV+WlRKv/7 tQfLsWdjMYsDIxcDLJiiiw+BS1TYzYlh33YMbUeZhArE8gUBi5OAZhIbif7PxXBmk0v/1w+d0WT 71S6XpXL7jLtn4avhQsSLjYWFpWlNFyaLt3N/iGnatKcwkMCu7O/rjFqCDz8KJc5ufCiQ8KledW /uRseHIiy8MxMVvnEyeb7WHv1FZfUhPk9i/cUHg/6HX76mM8Wtf6ERceePG1tVaz5/H9DQNLcGZ y6Llcc8p0+KzalN0T9jE0QmaB78cCR07q69f850w4GJ+7JZ4t78CCmYvZnNaPsssesT1P7DzTWz mNsNlHTrT7mds9yCbu/axEfR516y5TjmctOSC///F7oMUO36NtU1kIT+YKzleddOzbMTjo2R/KQ K/f8d0nnXwQH3rwSL3mk4NsGjQcrfrHr8a45VH/B/RMXAA== X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A On HDMI connectors which use drm_bridge_connector and DRM_BRIDGE_OP_HDMI IGT chokes on the max_bpc property in several kms_properties tests due to the drm_bridge_connector failing to reset HDMI-related properties. Call __drm_atomic_helper_connector_hdmi_reset() if the drm_bridge_connector has bridge_hdmi. It is impossible to call this function from HDMI bridges, none of the bridge callbacks correspond to the drm_connector_funcs::reset(). Fixes: 6b4468b0c6ba ("drm/bridge-connector: implement glue code for HDMI connector") Reviewed-by: Maxime Ripard Acked-by: Maxime Ripard Reviewed-by: Abhinav Kumar Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/display/Kconfig | 1 + drivers/gpu/drm/display/drm_bridge_connector.c | 13 ++++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index 8c174ceb0c4d..3763649ba251 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -15,6 +15,7 @@ if DRM_DISPLAY_HELPER config DRM_BRIDGE_CONNECTOR bool + select DRM_DISPLAY_HDMI_STATE_HELPER help DRM connector implementation terminating DRM bridge chains. diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index a4fbf1eb7ac5..3da5b8bf8259 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -216,8 +216,19 @@ static void drm_bridge_connector_debugfs_init(struct drm_connector *connector, } } +static void drm_bridge_connector_reset(struct drm_connector *connector) +{ + struct drm_bridge_connector *bridge_connector = + to_drm_bridge_connector(connector); + + drm_atomic_helper_connector_reset(connector); + if (bridge_connector->bridge_hdmi) + __drm_atomic_helper_connector_hdmi_reset(connector, + connector->state); +} + static const struct drm_connector_funcs drm_bridge_connector_funcs = { - .reset = drm_atomic_helper_connector_reset, + .reset = drm_bridge_connector_reset, .detect = drm_bridge_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,