Hi Laurent, On Tue, Sep 04, 2018 at 03:10:11PM +0300, Laurent Pinchart wrote: > Hello everybody, > > This patch series adds display support for the D3 and E3 SoCs, and in > particular the Draak and Ebisu boards. > > The code is based on Ulrich's "[PROTO][PATCH 00/10] R-Car D3 LVDS/HDMI support > (with PLL)" series previously posted to the dri-devel and linux-renesas-soc > mailing lists. It has been extensively reworked and partly rewritten, and > support for E3 and Ebisu has been added. > > The DU in the D3 and E3 SoCs has no internal PLL. In order to achieve precise > pixel clock rates (required, among other use cases, for HDMI operation), the > PLL from the internal LVDS encoder must be programmed and its output clock > routed back to the DU. > > The series starts with update to the DU and LVDS encoder DT bindings to add E3 > (R8A77990) support (patches 01/16 and 02/16) and new clock sources for the > LVDS encoder (patch 03/16). > > The next patch (04/16) adds a .mode_valid() operation to the thc63lvd1024 > driver, to reject modes outside of the LVDS decoder's pixel clock operating > range (8 MHz to 135 MHz). The patch can be merged on its own separately from > this series. > > Patch (05/16) adds support for D3 and E3 to the LVDS encoder driver. Compared > to the already supported SoCs, D3 and E3 use a different initialization > sequence and have a different PLL architecture, with more options for the > input clock. > > The next five patches (06/16 to 10/16) perform small reworks or add support > for miscellaneous missing features and limitations of the DU, to be followed > by patch 11/16 that adds support for the D3 and E3 to the DU driver. > > Finally patches 12/16 to 16/16 enable display for the D3 and E3 boards in DT. > Patch 12/16 adds support for the I2C controllers in the E3 DT, and will likely > be merged separately from this series. Patch 13/16 adds all the display IP > cores (FCP, VSP, DU and LVDS encoders) to the E3 DT, while patch 14/16 adds > (and wires up) the missing LVDS encoders to the D3 DT. Patches 15/16 and 16/16 > then enable display output for the Ebisu and Draak boards respectively. > > I believe the patch series to be ready for upstreaming (after fixing the > issues found during review of course). There is no big hack in the code, and I > haven't noticed any regression. A few issues are still unsolved, such as how > to disable display outputs independently on D3 and E3, and usage of the LVDS > PLL for the RGB output, but those are not regressions and shouldn't in my > opinion be considered as show stoppers. > > The patches are available from > > git://linuxtv.org/pinchartl/media.git drm/du/lvds-pll > > with an additional patch for E3 pinctrl that is required for testing and has > been queued by Geert for v4.20 already. > > I have successfully tested the series with the HDMI output of the Ebisu board. > Ulrich, Jacopo, could you test it on D3 if you have time ? You only need to > run kmstest or modetest to display an image on the HDMI output. HDMI output works fine with several modes I have tested: 1920x1080, 1280x720, 1024x768 and 1366x768 You can add my: Tested-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> If you need more testing please let me know. Thanks j > > Kieran Bingham (1): > arm64: dts: renesas: r8a77995: Add LVDS support > > Laurent Pinchart (12): > dt-bindings: display: renesas: du: Document r8a77990 bindings > dt-bindings: display: renesas: lvds: Document r8a77990 bindings > dt-bindings: display: renesas: lvds: Add EXTAL and DU_DOTCLKIN clocks > drm: bridge: thc63: Restrict modes based on hardware operating > frequency > drm: rcar-du: lvds: D3/E3 support > drm: rcar-du: Perform the initial CRTC setup from rcar_du_crtc_get() > drm: rcar-du: Use LVDS PLL clock as dot clock when possible > drm: rcar-du: Enable configurable DPAD0 routing on Gen3 > drm: rcar-du: Cache DSYSR value to ensure known initial value > drm: rcar-du: Don't use TV sync mode when not supported by the > hardware > arm64: dts: renesas: r8a77990: Add display output support > arm64: dts: renesas: r8a77990: ebisu: Enable VGA and HDMI outputs > > Takeshi Kihara (1): > arm64: dts: renesas: r8a77990: Add I2C device nodes > > Ulrich Hecht (2): > drm: rcar-du: Add r8a77990 and r8a77995 device support > arm64: dts: renesas: r8a77995: draak: Enable HDMI display output > > .../bindings/display/bridge/renesas,lvds.txt | 13 +- > .../devicetree/bindings/display/renesas,du.txt | 2 + > arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts | 166 ++++++++++ > arch/arm64/boot/dts/renesas/r8a77990.dtsi | 290 ++++++++++++++++ > arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 98 +++++- > arch/arm64/boot/dts/renesas/r8a77995.dtsi | 56 ++++ > drivers/gpu/drm/bridge/thc63lvd1024.c | 18 + > drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 136 ++++---- > drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 5 + > drivers/gpu/drm/rcar-du/rcar_du_drv.c | 63 +++- > drivers/gpu/drm/rcar-du/rcar_du_drv.h | 3 + > drivers/gpu/drm/rcar-du/rcar_du_group.c | 88 +++-- > drivers/gpu/drm/rcar-du/rcar_du_kms.c | 12 + > drivers/gpu/drm/rcar-du/rcar_lvds.c | 365 ++++++++++++++++++--- > drivers/gpu/drm/rcar-du/rcar_lvds_regs.h | 43 ++- > 15 files changed, 1210 insertions(+), 148 deletions(-) > > -- > Regards, > > Laurent Pinchart >
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