[PATCH v4 00/51] drm/omap: Replace custom display drivers with drm_bridge and drm_panel
Neil Armstrong
narmstrong at baylibre.com
Mon Jan 6 14:45:59 UTC 2020
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
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