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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&2 are preparation patches to allow display modes of two existing panels to pass the added mode validation logic in patch 4. Patch 3 allows i.MX8MP LVDS Display Bridge(LDB) bridge driver to find the next non-panel bridge, that is the IT6263 in this case. Patch 4 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 5 adds DT binding for IT6263. Patch 6 adds IT6263 bridge driver. Only video output is supported. Patch 7 adds DT overlays to support NXP adapter cards[2][3] with IT6263 populated. Patch 8 enables the IT6263 bridge driver in defconfig. [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 Liu Ying (8): arm64: dts: imx8mp-skov-revb-mi1010ait-1cp1: Add panel-timing node to panel node arm64: dts: imx8mp-phyboard-pollux-rdk: Add panel-timing node to panel-lvds node drm/bridge: fsl-ldb: Get the next non-panel bridge drm/bridge: fsl-ldb: Use clk_round_rate() to validate "ldb" clock rate 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 .../bindings/display/bridge/ite,it6263.yaml | 310 +++++++ 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 | 42 + .../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 | 42 + .../imx8mp-evk-lvds1-imx-lvds-hdmi.dtso | 28 + arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 6 + .../freescale/imx8mp-phyboard-pollux-rdk.dts | 15 + .../imx8mp-skov-revb-mi1010ait-1cp1.dts | 15 + arch/arm64/configs/defconfig | 1 + drivers/gpu/drm/bridge/Kconfig | 8 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/fsl-ldb.c | 53 +- drivers/gpu/drm/bridge/ite-it6263.c | 829 ++++++++++++++++++ 17 files changed, 1483 insertions(+), 20 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/bridge/ite,it6263.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