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Sun, 14 Jul 2024 23:33:18 -0700 (PDT) From: Dmitry Baryshkov Date: Mon, 15 Jul 2024 09:33:05 +0300 Subject: [PATCH v4 5/5] 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: <20240715-drm-bridge-connector-fix-hdmi-reset-v4-5-61e6417cfd99@linaro.org> References: <20240715-drm-bridge-connector-fix-hdmi-reset-v4-0-61e6417cfd99@linaro.org> In-Reply-To: <20240715-drm-bridge-connector-fix-hdmi-reset-v4-0-61e6417cfd99@linaro.org> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Dave Stevenson , 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 , 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: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , dri-devel@lists.freedesktop.org, igt-dev@lists.freedesktop.org, freedreno@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, 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=2305; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=RSj/GL8gZoJdjbJyGkKZjzhqoxsZ6wLfYZiTk6CBwIc=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBmlMKpemzG8GiCsYpbPT9S1Ojj9SgO+0jwg1X5y 9EPZPxXbKOJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZpTCqQAKCRCLPIo+Aiko 1RfqCACEDU19Qkxz5DVPRYkK7fDdQdzCC7Ex3ixU9rJztEg0cYygQQ7/N1TTSfpbHd/6dnXTQqr 1EgcPH6TE+tH9eXXMheeF1OS/bhTuKARxi2wWkdHQUGUtyMj8mcHkHdrusMxtne+ZhGO/FIJ2xq Rbf1R+hLTh4esRtay58HxYpazr137omA9Gw8f5vvDWH+/fN0hvMicz3Eg/9i+0frpzphu+S7qVc FVZeAPpLqP6gaJGOvTRZRx1keGxL2vn+faVwbgsOyaVmNQjvZ71zl4YXnlV8oqwC/teMLyW6umJ AqBRzDQGS3iL3PzsMCTRPynE0PUtU41rhweY1t1X4Nq8Idxh 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 Signed-off-by: Dmitry Baryshkov Acked-by: Maxime Ripard --- 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 0869b663f17e..7ebb35438459 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,