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[2001:4c4e:1b91:1c00:ae6c:52cf:c896:1284]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49981b58700sm66426445e9.9.2026.08.13.07.40.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2026 07:40:51 -0700 (PDT) From: Igor Paunovic To: Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Andy Yan Cc: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dmitry Baryshkov , Sebastian Reichel , Marius Dinu , dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Igor Paunovic Subject: [PATCH 0/2] drm/rockchip: Add missing DRM_BRIDGE_CONNECTOR selects Date: Thu, 13 Aug 2026 16:40:17 +0200 Message-ID: <20260813144019.12089-1-royalnet026@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit While testing the dw-dp v11 series I noticed that ROCKCHIP_DW_DP does not select DRM_BRIDGE_CONNECTOR although dw_dp-rockchip.c calls drm_bridge_connector_init(), and Sebastian suggested handling this independently of that series [1]. The ROCKCHIP_DW_DP gap was in fact found before: Marius Dinu posted the same one-liner in March [2] and dropped it when the failure stopped reproducing in his build. The failure is configuration-dependent - any other enabled option that selects DRM_BRIDGE_CONNECTOR masks it - so it can come and go with unrelated config changes. It still reproduces on current drm-misc-next. A sweep over drivers/gpu/drm/rockchip found eight callers of drm_bridge_connector_init(). Five options already select it, ROCKCHIP_INNO_HDMI gets it through its DRM_INNO_HDMI core option, and two are left with a latent link failure: ROCKCHIP_DW_DP and ROCKCHIP_RK3066_HDMI. The rk3066 case additionally needs DRM_DISPLAY_HELPER, whose module carries the bridge-connector code. Both failures were reproduced on drm-misc-next (d85a5e9dfb42) with an arm64 allnoconfig-based configuration enabling only DRM_ROCKCHIP plus the option in question; with the fixes applied both configurations link cleanly, and an arm64 defconfig re-run shows no new Kconfig warnings. Both issues are present in released kernels: the rk3066 one since v6.16, the dw_dp one since v6.18. [1] https://lore.kernel.org/r/aneNCDU12OzG99UX@venus [2] https://lore.kernel.org/r/20260319155051.1944-1-m95d+git@psihoexpert.ro Igor Paunovic (2): drm/rockchip: dw_dp: Select DRM_BRIDGE_CONNECTOR drm/rockchip: rk3066_hdmi: Add missing Kconfig selects drivers/gpu/drm/rockchip/Kconfig | 3 +++ 1 file changed, 3 insertions(+) -- 2.43.0