| Message ID | 20241028023740.19732-1-victor.liu@nxp.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add ITE IT6263 LVDS to HDMI converter support | expand |
Hi, On Mon, 28 Oct 2024 at 04:37, Liu Ying <victor.liu@nxp.com> wrote: > > Hi, > > This patch series aims to add ITE IT6263 LVDS to HDMI converter on > i.MX8MP EVK. Combined with LVDS receiver and HDMI 1.4a transmitter, > the IT6263 supports LVDS input and HDMI 1.4 output by conversion > function. IT6263 product link can be found at [1]. > > Patch 1 is a preparation patch to allow display mode of an existing > panel to pass the added mode validation logic in patch 3. > > Patch 2 allows i.MX8MP LVDS Display Bridge(LDB) bridge driver to find > the next non-panel bridge, that is the IT6263 in this case. > > Patch 3 adds mode validation logic to i.MX8MP LDB bridge driver against > "ldb" clock so that it can filter out unsupported display modes read > from EDID. > > Patch 4 adds MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG,JEIDA} support, as they > are supported by IT6263(with LVDS data bit reversed order). > > Patch 5 makes drm_of.c use MEDIA_BUS_FMT_RGB101010_1X7X5_{JEIDA,SPWG}. > > Patch 6 supports getting dual-link LVDS pixel order for the sink side as > needed by IT6263 driver. > > Patch 7 documents jeida-30 and vesa-30 data mappings in lvds-data-mapping.yaml, > as needed by IT6263 DT binding. > > Patch 8 extracts common dual-link LVDS display properties into new > lvds-dual-ports.yaml so that IT6263 DT binding can reference it. > > Patch 9 adds DT binding for IT6263. > > Patch 10 adds IT6263 bridge driver. Only video output is supported. > > Patch 11 adds DT overlays to support NXP adapter cards[2][3] with IT6263 > populated. > > Patch 12 enables the IT6263 bridge driver in defconfig. > > Patch 13 updates MAINTAINERS to add maintainer for IT6263 driver. This has pretty complicated structure from the merging point of view. I propose we take patches 6, 8, 9 (without 30-bit formats, they can be dropped while applying), 11, 12 (?) and 13 through drm-misc in one batch (once DT maintainers review the binding parts). This looks like a minimal set, having no extra dependencies. The second set might be 4, 5 + new patch, re-adding 30-bit formats to IT6263 binding (no driver changes are necessary). This can go in separately, after an Ack from media maintainers. Of course both sets can go together if linux-media maintainers reacts quickly and ack merging media-formats patch through drm-misc tree. The rest of the patches don't have such strong dependencies and go in once ready / reviewed. WDYT?
Hi, This patch series aims to add ITE IT6263 LVDS to HDMI converter on i.MX8MP EVK. Combined with LVDS receiver and HDMI 1.4a transmitter, the IT6263 supports LVDS input and HDMI 1.4 output by conversion function. IT6263 product link can be found at [1]. Patch 1 is a preparation patch to allow display mode of an existing panel to pass the added mode validation logic in patch 3. Patch 2 allows i.MX8MP LVDS Display Bridge(LDB) bridge driver to find the next non-panel bridge, that is the IT6263 in this case. Patch 3 adds mode validation logic to i.MX8MP LDB bridge driver against "ldb" clock so that it can filter out unsupported display modes read from EDID. Patch 4 adds MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG,JEIDA} support, as they are supported by IT6263(with LVDS data bit reversed order). Patch 5 makes drm_of.c use MEDIA_BUS_FMT_RGB101010_1X7X5_{JEIDA,SPWG}. Patch 6 supports getting dual-link LVDS pixel order for the sink side as needed by IT6263 driver. Patch 7 documents jeida-30 and vesa-30 data mappings in lvds-data-mapping.yaml, as needed by IT6263 DT binding. Patch 8 extracts common dual-link LVDS display properties into new lvds-dual-ports.yaml so that IT6263 DT binding can reference it. Patch 9 adds DT binding for IT6263. Patch 10 adds IT6263 bridge driver. Only video output is supported. Patch 11 adds DT overlays to support NXP adapter cards[2][3] with IT6263 populated. Patch 12 enables the IT6263 bridge driver in defconfig. Patch 13 updates MAINTAINERS to add maintainer for IT6263 driver. Note that patch 3 depends on patch[4] in shawnguo/imx/fixes. [1] https://www.ite.com.tw/en/product/cate1/IT6263 [2] https://www.nxp.com/part/IMX-LVDS-HDMI [3] https://www.nxp.com/part/IMX-DLVDS-HDMI [4] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20241017031146.157996-1-marex@denx.de/ v4: * Squash change for advantech,idk-2121wr.yaml and panel-simple-lvds-dual-ports.yaml with lvds-dual-ports.yaml in patch 8. (Rob) * Improve description in lvds-dual-ports.yaml in patch 8. (Krzysztof) * Require dual-lvds-odd-pixels or dual-lvds-even-pixels DT properties for port@1 in ite,it6263.yaml in patch 9. * Drop "data-mirror: true" from ite,it6263.yaml in patch 9. * Use local variable reset_gpio in IT6263 driver's probe() in patch 10. (Biju) * Move pixel clock rate validation from mode_valid callback to hdmi_tmds_char_rate_valid callback in IT6263 driver in patch 10. (Maxime) * Document IT6263 video processing throughput constraints by adding comments in IT6263 driver in patch 10. (Maxime) * Fix IT6263 LVDS 8-bit color depth macro BIT8 in IT6263 driver in patch 10. * Drop 30-bit LVDS data bit order validation in IT6263 driver in patch 10. * Rebase patch 11 upon next-20241025 to resolve conflicts when apply. * Collect R-b and A-b tags. v3: * Use assigned-clock-rates DT property to set pixel clock rate for "multi-inno,mi1010ait-1cp" LVDS panel in patch 1 instead of using panel-timing node. (Marek) * Drop the patch for fixing pixel clock rate for "edt,etml1010g3dra" LVDS panel because there is already another better patch[4]. * Collect Dmitry's R-b tag for patch 2. * Define MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG,JEIDA} in patch 4. * Use MEDIA_BUS_FMT_RGB101010_1X7X5_{JEIDA,SPWG} in drm_of.c in patch 5. * Add drm_of_lvds_get_dual_link_pixel_order_sink() in patch 6. (Dmitry) * Document jeida-30 and vesa-30 in lvds-data-mapping.yaml in patch 7. * Extract dual-link LVDS display common properties(patch 8-10). (Dmitry) * Reference lvds-dual-ports.yaml in ite,it6263.yaml in patch 11. (Dmitry) * Add data-mapping DT property in ite,it6263.yaml in patch 11. (Dmitry, Biju) * Allow data-mirror in ite,it6263.yaml in patch 11. * Drop ite,lvds-link-num-data-lanes DT property from ite,it6263.yaml in patch 11. (Dmitry, Biju) * Use HDMI connector framework in IT6263 driver in patch 12. (Maxime) * Control the missing HDMI_REG_AVI_INFOFRM_CTRL register in IT6263 driver in patch 12. * Validate the maximal HDMI TMDS character rate in IT6263 driver in patch 12. (Dmitry) * Get LVDS data mapping from data-mapping DT property in IT6263 driver in patch 12. (Dmitry, Biju) * Validate 30bit LVDS data bit order by checking data-mirror DT property in IT6263 driver in patch 12. * Use drm_of_lvds_get_dual_link_pixel_order_sink() in IT6263 driver in patch 12. (Dmitry) * Initialize a bridge connector instead of open coding in IT6263 driver in patch 12. (Dmitry) * Add a comment that IT6263 chip has no HPD IRQ support in IT6263 driver in patch 12. (Dmitry) * Use devm_drm_bridge_add() instead of drm_bridge_add() in IT6263 driver in patch 12. (Dmitry) * Fix a minor build warning reported by kernel test robot in IT6263 driver in patch 12. * Use data-mapping DT property instead of ite,lvds-link-num-data-lanes in i.MX8MP evk DT files in patch 13. (Dmitry, Biju) v2: * Add more comments in fsl-ldb.c and commit message about pixel clock rate validation for patch 4. (Maxime) * Document number of LVDS link data lanes in patch 5. (Biju) * Simplify ports property by dropping "oneOf" in patch 5. (Rob) * Add AVI inforframe support in patch 6. (Maxime) * Add DRM_MODE_CONNECTOR_HDMIA in patch 6. (Biju) * Rename it6263_reset() to it6263_hw_reset() in patch 6. (Biju) * Check number of LVDS link data lanes in patch 6. (Biju) * Add ite,lvds-link-num-data-lanes properties in patch 7. * Update MAINTAINERS. (Maxime) *** BLURB HERE *** Liu Ying (13): arm64: dts: imx8mp-skov-revb-mi1010ait-1cp1: Set "media_disp2_pix" clock rate to 70MHz drm/bridge: fsl-ldb: Get the next non-panel bridge drm/bridge: fsl-ldb: Use clk_round_rate() to validate "ldb" clock rate media: uapi: Add MEDIA_BUS_FMT_RGB101010_1X7X5_{SPWG, JEIDA} drm: of: Get MEDIA_BUS_FMT_RGB101010_1X7X5_{JEIDA, SPWG} LVDS data mappings drm: of: Add drm_of_lvds_get_dual_link_pixel_order_sink() dt-bindings: display: lvds-data-mapping: Add 30-bit RGB pixel data mappings dt-bindings: display: Document dual-link LVDS display common properties dt-bindings: display: bridge: Add ITE IT6263 LVDS to HDMI converter drm/bridge: Add ITE IT6263 LVDS to HDMI converter arm64: dts: imx8mp-evk: Add NXP LVDS to HDMI adapter cards arm64: defconfig: Enable ITE IT6263 driver MAINTAINERS: Add maintainer for ITE IT6263 driver .../bindings/display/bridge/ite,it6263.yaml | 250 +++++ .../bindings/display/lvds-data-mapping.yaml | 31 + .../bindings/display/lvds-dual-ports.yaml | 76 ++ .../display/panel/advantech,idk-2121wr.yaml | 14 +- .../panel/panel-simple-lvds-dual-ports.yaml | 20 +- .../media/v4l/subdev-formats.rst | 156 ++- MAINTAINERS | 8 + arch/arm64/boot/dts/freescale/Makefile | 8 + .../imx8mp-evk-imx-lvds-hdmi-common.dtsi | 29 + ...8mp-evk-lvds0-imx-dlvds-hdmi-channel0.dtso | 44 + ...imx8mp-evk-lvds0-imx-lvds-hdmi-common.dtsi | 43 + .../imx8mp-evk-lvds0-imx-lvds-hdmi.dtso | 28 + ...8mp-evk-lvds1-imx-dlvds-hdmi-channel0.dtso | 44 + ...imx8mp-evk-lvds1-imx-lvds-hdmi-common.dtsi | 43 + .../imx8mp-evk-lvds1-imx-lvds-hdmi.dtso | 28 + arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 6 + .../imx8mp-skov-revb-mi1010ait-1cp1.dts | 8 +- arch/arm64/configs/defconfig | 1 + drivers/gpu/drm/bridge/Kconfig | 11 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/fsl-ldb.c | 55 +- drivers/gpu/drm/bridge/ite-it6263.c | 898 ++++++++++++++++++ drivers/gpu/drm/drm_of.c | 82 +- include/drm/drm_of.h | 9 + include/uapi/linux/media-bus-format.h | 4 +- 25 files changed, 1827 insertions(+), 70 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml create mode 100644 Documentation/devicetree/bindings/display/lvds-dual-ports.yaml create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-imx-lvds-hdmi-common.dtsi create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds0-imx-dlvds-hdmi-channel0.dtso create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds0-imx-lvds-hdmi-common.dtsi create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds0-imx-lvds-hdmi.dtso create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds1-imx-dlvds-hdmi-channel0.dtso create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds1-imx-lvds-hdmi-common.dtsi create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-lvds1-imx-lvds-hdmi.dtso create mode 100644 drivers/gpu/drm/bridge/ite-it6263.c