of_drm_find_panel() returns a pointer to a panel which the caller holds to either do panel setup with the prepare(), enable() like panel helpers or for APIs like devm_drm_panel_bridge_add(), devm_drm_panel_bridge_add_typed() which expect a panel. Either way, once the driver no longer needs the panel, put it down with a drm_panel_put() Signed-off-by: Anusha Srivatsa <asrivats@xxxxxxxxxx> --- Changes in v2: - Get the missing reference in of_drm_find_panel() - Add changes to all drivers that call of_drm_find_panel() - Link to v1: https://lore.kernel.org/r/20250604-of_drm_find_panel_part1-v1-0-c632e12e131d@xxxxxxxxxx --- Anusha Srivatsa (16): drm/panel: get/put panel reference in drm_panel_add/remove() drm/panel: get the panel returned by of_drm_find_panel() drm/panel/samsung-dsicm: Keep up with refcounting drm/panel/sun4i: Keep up with refcounting drm/panel/exynos: Keep up with refcounting drm/panel/rcar_du_encoder: Keep up with refcounting drm/panel/rz-du: Keep up with refcounting drm/bridge/lvds-codec: Keep up with refcounting drm/bridge/fsl-ldb: Keep up with refcounting. drm/panel/omapdrm: Keep up with refcounting drm/panel/sti: Keep up with refcounting drm/drm_of: Keep up with refcounting drm/fsl-dcu: Keep up with refcounting drm/mcde: Keep up with refcounting drm/bridge/analogix: Keep up with refcounting drm/tegra: Keep up with refcounting drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1 + drivers/gpu/drm/bridge/fsl-ldb.c | 3 +++ drivers/gpu/drm/bridge/lvds-codec.c | 1 + drivers/gpu/drm/bridge/samsung-dsim.c | 1 + drivers/gpu/drm/drm_of.c | 2 ++ drivers/gpu/drm/drm_panel.c | 6 ++++++ drivers/gpu/drm/exynos/exynos_drm_dpi.c | 1 + drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 1 + drivers/gpu/drm/mcde/mcde_dsi.c | 5 ++++- drivers/gpu/drm/omapdrm/dss/output.c | 6 ++++-- drivers/gpu/drm/renesas/rcar-du/rcar_du_encoder.c | 2 ++ drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c | 1 + drivers/gpu/drm/sti/sti_dvo.c | 2 ++ drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 2 ++ drivers/gpu/drm/tegra/dsi.c | 1 + 15 files changed, 32 insertions(+), 3 deletions(-) --- base-commit: 60ba94338047bb5410a3626ced3380afe9285ed8 change-id: 20250613-b4-of_drm_find_panel_part1-ad57c4f88a0c Best regards, -- Anusha Srivatsa <asrivats@xxxxxxxxxx>
