Hi Laurent, On 19/12/2019 11:44, Laurent Pinchart wrote: > Hello, > > This patch series is the fourth attempt to (nearly, see [1]) complete the > rework of the omapdrm driver to move to drm_bridge and drm_panel. > > Versions, available at [2], explains in its long cover letter the > rationale for the changes. I won't duplicate it here as it is still > valid as-is. > > Compared to v3, this version has been rebased on top of drm-misc-next, > minor issues reported during review have been fixed, and tags collected. > > There is however still one major open issue in the way hotplug detection > and notification is handled. This has been discussed in length with > Andrzej and Daniel in [3] (where we have competed for the largest number > of quote levels in an e-mail, and may have won). I do agree with some of > the points they have raised, but I would like to propose addressing them > on top of this series. > > The rationale for this proposal is as follows. Hotplug notification is > an area that hasn't received enough love, and there is quite a lot of > work there to fix the world. The code in this series has already been > reworked to decouple the notification mechanism from both the producers > (as in bridges) and consumers (as in other bridges) of hotplug events, > isolating the implementation of the mechanism in drm_bridge.c and > drm_bridge_connector.c. > > The implementation has known shortcomings in that it doesn't support > blocking hotplug notifications along the chain of bridges, or native > notification of encoders or DRM devices. While those are valid concerns, > I'm worried that fixing them as part of this series would not only > massively delay the other parts, but would also have no user as I have > no use case for these features. The implementation would then be largely > untested, and very likely fail to test of real users. > > For these reasons I would like to improve the hotplug notification > mechanism on top of this series, when someone will hit for real the > issues that have been previously raised. If that person isn't me, I am > willing to help them solve the problems at that point. > > The patches can be found at > > git://linuxtv.org/pinchartl/media.git omapdrm/bridge/devel > > [1] The only notable exception is the omapdrm-specific DSI panel driver > that implements a large number of custom operations. This is being > addressed separately. > > [2] https://patchwork.kernel.org/cover/11102445/ > > [3] https://patchwork.kernel.org/patch/11034193/ > > Laurent Pinchart (50): > video: hdmi: Change return type of hdmi_avi_infoframe_init() to void > drm/connector: Add helper to get a connector type name > drm/edid: Add flag to drm_display_info to identify HDMI sinks > drm/bridge: Add connector-related bridge operations and data > drm/bridge: Extend bridge API to disable connector creation > drm/bridge: dumb-vga-dac: Rename internal symbols to simple-bridge > drm/bridge: dumb-vga-dac: Rename driver to simple-bridge > drm/bridge: simple-bridge: Add support for non-VGA bridges > drm/bridge: simple-bridge: Add support for enable GPIO > drm/bridge: simple-bridge: Add support for the TI OPA362 > drm/bridge: Add bridge driver for display connectors > drm/bridge: Add driver for the TI TPD12S015 HDMI level shifter > drm/bridge: panel: Implement bridge connector operations > drm/bridge: tfp410: Replace manual connector handling with bridge > drm/bridge: tfp410: Allow operation without drm_connector > drm: Add helper to create a connector for a chain of bridges > drm/omap: dss: Cleanup DSS ports on initialisation failure > drm/omap: Simplify HDMI mode and infoframe configuration > drm/omap: Factor out display type to connector type conversion > drm/omap: Use the drm_panel_bridge API > drm/omap: dss: Fix output next device lookup in DT > drm/omap: Add infrastructure to support drm_bridge local to DSS > outputs > drm/omap: dss: Make omap_dss_device_ops optional > drm/omap: hdmi: Allocate EDID in the .read_edid() operation > drm/omap: hdmi4: Rework EDID read to isolate data read > drm/omap: hdmi5: Rework EDID read to isolate data read > drm/omap: hdmi4: Register a drm_bridge for EDID read > drm/omap: hdmi5: Register a drm_bridge for EDID read > drm/omap: hdmi4: Move mode set, enable and disable operations to > bridge > drm/omap: hdmi5: Move mode set, enable and disable operations to > bridge > drm/omap: hdmi4: Implement drm_bridge .hpd_notify() operation > drm/omap: dss: Remove .set_hdmi_mode() and .set_infoframe() operations > drm/omap: venc: Register a drm_bridge > drm/omap: Create connector for bridges > drm/omap: Switch the HDMI and VENC outputs to drm_bridge > drm/omap: Remove HPD, detect and EDID omapdss operations > drm/omap: hdmi: Remove omap_dss_device operations > drm/omap: venc: Remove omap_dss_device operations > drm/omap: hdmi4: Simplify EDID read > drm/omap: hdmi5: Simplify EDID read > drm/omap: dpi: Sort includes alphabetically > drm/omap: dpi: Reorder functions in sections > drm/omap: dpi: Simplify clock setting API > drm/omap: dpi: Register a drm_bridge > drm/omap: sdi: Sort includes alphabetically > drm/omap: sdi: Register a drm_bridge > drm/omap: Hardcode omap_connector type to DSI > drm/omap: dss: Remove unused omap_dss_device operations > drm/omap: dss: Inline the omapdss_display_get() function > drm/omap: dss: Remove unused omapdss_of_find_connected_device() > function > > Wen Yang (1): > drm/omap: Fix possible object reference leak > > Documentation/gpu/todo.rst | 14 + > arch/arm/configs/davinci_all_defconfig | 2 +- > arch/arm/configs/integrator_defconfig | 2 +- > arch/arm/configs/multi_v7_defconfig | 2 +- > arch/arm/configs/omap2plus_defconfig | 7 +- > arch/arm/configs/shmobile_defconfig | 2 +- > arch/arm/configs/sunxi_defconfig | 2 +- > arch/arm/configs/versatile_defconfig | 2 +- > drivers/gpu/drm/Makefile | 3 +- > drivers/gpu/drm/arc/arcpgu_hdmi.c | 2 +- > .../gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c | 2 +- > drivers/gpu/drm/bridge/Kconfig | 29 +- > drivers/gpu/drm/bridge/Makefile | 4 +- > drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 8 +- > .../drm/bridge/analogix/analogix-anx6345.c | 8 +- > .../drm/bridge/analogix/analogix-anx78xx.c | 8 +- > .../drm/bridge/analogix/analogix_dp_core.c | 10 +- > drivers/gpu/drm/bridge/cdns-dsi.c | 6 +- > drivers/gpu/drm/bridge/display-connector.c | 292 ++++++++++++++ > drivers/gpu/drm/bridge/dumb-vga-dac.c | 300 -------------- > drivers/gpu/drm/bridge/lvds-encoder.c | 5 +- > .../bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 8 +- > drivers/gpu/drm/bridge/nxp-ptn3460.c | 8 +- > drivers/gpu/drm/bridge/panel.c | 17 +- > drivers/gpu/drm/bridge/parade-ps8622.c | 8 +- > drivers/gpu/drm/bridge/sii902x.c | 8 +- > drivers/gpu/drm/bridge/sil-sii8620.c | 3 +- > drivers/gpu/drm/bridge/simple-bridge.c | 342 ++++++++++++++++ > drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 10 +- > drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 8 +- > drivers/gpu/drm/bridge/tc358764.c | 8 +- > drivers/gpu/drm/bridge/tc358767.c | 9 +- > drivers/gpu/drm/bridge/thc63lvd1024.c | 5 +- > drivers/gpu/drm/bridge/ti-sn65dsi86.c | 8 +- > drivers/gpu/drm/bridge/ti-tfp410.c | 222 ++++------- > drivers/gpu/drm/bridge/ti-tpd12s015.c | 211 ++++++++++ > drivers/gpu/drm/drm_bridge.c | 168 +++++++- > drivers/gpu/drm/drm_bridge_connector.c | 373 ++++++++++++++++++ > drivers/gpu/drm/drm_connector.c | 15 + > drivers/gpu/drm/drm_edid.c | 11 +- > drivers/gpu/drm/drm_simple_kms_helper.c | 2 +- > drivers/gpu/drm/exynos/exynos_dp.c | 3 +- > drivers/gpu/drm/exynos/exynos_drm_dsi.c | 4 +- > drivers/gpu/drm/exynos/exynos_hdmi.c | 2 +- > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 2 +- > drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 2 +- > drivers/gpu/drm/i2c/tda998x_drv.c | 10 +- > drivers/gpu/drm/imx/imx-ldb.c | 2 +- > drivers/gpu/drm/imx/parallel-display.c | 2 +- > drivers/gpu/drm/ingenic/ingenic-drm.c | 2 +- > drivers/gpu/drm/mcde/mcde_dsi.c | 5 +- > drivers/gpu/drm/mediatek/mtk_dpi.c | 2 +- > drivers/gpu/drm/mediatek/mtk_dsi.c | 2 +- > drivers/gpu/drm/mediatek/mtk_hdmi.c | 10 +- > drivers/gpu/drm/msm/dsi/dsi_manager.c | 4 +- > drivers/gpu/drm/msm/edp/edp.c | 2 +- > drivers/gpu/drm/msm/edp/edp_bridge.c | 2 +- > drivers/gpu/drm/msm/hdmi/hdmi.c | 2 +- > drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 2 +- > drivers/gpu/drm/omapdrm/displays/Kconfig | 22 -- > drivers/gpu/drm/omapdrm/displays/Makefile | 4 - > .../omapdrm/displays/connector-analog-tv.c | 97 ----- > .../gpu/drm/omapdrm/displays/connector-hdmi.c | 183 --------- > .../gpu/drm/omapdrm/displays/encoder-opa362.c | 137 ------- > .../drm/omapdrm/displays/encoder-tpd12s015.c | 217 ---------- > .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 2 +- > drivers/gpu/drm/omapdrm/dss/Makefile | 2 +- > drivers/gpu/drm/omapdrm/dss/base.c | 55 +-- > drivers/gpu/drm/omapdrm/dss/display.c | 9 - > drivers/gpu/drm/omapdrm/dss/dpi.c | 351 ++++++++-------- > drivers/gpu/drm/omapdrm/dss/dsi.c | 4 +- > drivers/gpu/drm/omapdrm/dss/dss-of.c | 28 -- > drivers/gpu/drm/omapdrm/dss/dss.c | 46 ++- > drivers/gpu/drm/omapdrm/dss/hdmi.h | 4 +- > drivers/gpu/drm/omapdrm/dss/hdmi4.c | 308 ++++++++------- > drivers/gpu/drm/omapdrm/dss/hdmi4_core.c | 59 +-- > drivers/gpu/drm/omapdrm/dss/hdmi4_core.h | 4 +- > drivers/gpu/drm/omapdrm/dss/hdmi5.c | 290 +++++++------- > drivers/gpu/drm/omapdrm/dss/hdmi5_core.c | 48 +-- > drivers/gpu/drm/omapdrm/dss/hdmi5_core.h | 5 +- > .../gpu/drm/omapdrm/dss/omapdss-boot-init.c | 9 +- > drivers/gpu/drm/omapdrm/dss/omapdss.h | 46 +-- > drivers/gpu/drm/omapdrm/dss/output.c | 53 ++- > drivers/gpu/drm/omapdrm/dss/sdi.c | 178 ++++++--- > drivers/gpu/drm/omapdrm/dss/venc.c | 270 +++++++------ > drivers/gpu/drm/omapdrm/omap_connector.c | 247 +----------- > drivers/gpu/drm/omapdrm/omap_connector.h | 3 - > drivers/gpu/drm/omapdrm/omap_drv.c | 88 +++-- > drivers/gpu/drm/omapdrm/omap_encoder.c | 83 +--- > drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 2 +- > drivers/gpu/drm/rcar-du/rcar_lvds.c | 11 +- > drivers/gpu/drm/rockchip/rockchip_lvds.c | 2 +- > drivers/gpu/drm/rockchip/rockchip_rgb.c | 2 +- > drivers/gpu/drm/sti/sti_dvo.c | 2 +- > drivers/gpu/drm/sti/sti_hda.c | 2 +- > drivers/gpu/drm/sti/sti_hdmi.c | 2 +- > drivers/gpu/drm/stm/ltdc.c | 2 +- > drivers/gpu/drm/sun4i/sun4i_lvds.c | 2 +- > drivers/gpu/drm/sun4i/sun4i_rgb.c | 2 +- > drivers/gpu/drm/tilcdc/tilcdc_external.c | 2 +- > drivers/gpu/drm/vc4/vc4_dpi.c | 2 +- > drivers/gpu/drm/vc4/vc4_dsi.c | 2 +- > drivers/video/hdmi.c | 11 +- > include/drm/drm_bridge.h | 213 +++++++++- > include/drm/drm_bridge_connector.h | 18 + > include/drm/drm_connector.h | 9 + > include/linux/hdmi.h | 2 +- > 107 files changed, 2939 insertions(+), 2415 deletions(-) > create mode 100644 drivers/gpu/drm/bridge/display-connector.c > delete mode 100644 drivers/gpu/drm/bridge/dumb-vga-dac.c > create mode 100644 drivers/gpu/drm/bridge/simple-bridge.c > create mode 100644 drivers/gpu/drm/bridge/ti-tpd12s015.c > create mode 100644 drivers/gpu/drm/drm_bridge_connector.c > delete mode 100644 drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c > delete mode 100644 drivers/gpu/drm/omapdrm/displays/connector-hdmi.c > delete mode 100644 drivers/gpu/drm/omapdrm/displays/encoder-opa362.c > delete mode 100644 drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c > delete mode 100644 drivers/gpu/drm/omapdrm/dss/dss-of.c > create mode 100644 include/drm/drm_bridge_connector.h > Tell me how I can help to apply drm/bridge patches 4 to 15 looks ok and are already reviewed, should I apply them ? Neil _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
