dt-bindings: display: imx: ldb: Add i.MXqxp LDB compatible string and properties
This patch adds device tree binding support for i.MXqxp LDB, including compatible string and additional properties. Signed-off-by: Liu Ying <victor.liu@nxp.com>5.4-rM2-2.2.x-imx-squashed
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2e9d9adb1c
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15409f90e6
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@ -10,13 +10,15 @@ Required properties:
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- #address-cells : should be <1>
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- #size-cells : should be <0>
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- compatible : should be "fsl,imx53-ldb" or "fsl,imx6q-ldb" or
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"fsl,imx8qm-ldb".
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"fsl,imx8qm-ldb" or "fsl,imx8qxp-ldb".
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All LDB versions are similar.
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i.MX6q/dl has an additional multiplexer in the front to select
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any of the two or four IPU display interfaces as input for each
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LVDS channel.
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i.MX8qm LDB supports 10bit RGB input and needs an additional
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phy.
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i.MX8qxp LDB only supports one LVDS encoder channel(either
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channel0 or channel1).
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- gpr : should be <&gpr> on i.MX53 and i.MX6q.
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The phandle points to the iomuxc-gpr region containing the LVDS
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control register.
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@ -40,16 +42,20 @@ Required properties:
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The needed clock numbers for each are documented in
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Documentation/devicetree/bindings/clock/imx5-clock.txt, and in
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Documentation/devicetree/bindings/clock/imx6q-clock.txt, and in
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Documentation/devicetree/bindings/clock/imx8qm-lpcg.txt.
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- power-domains : phandle pointing to power domain, only required by i.MX8qm.
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Documentation/devicetree/bindings/clock/imx8qm-lpcg.txt, and in
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Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt.
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- power-domains : phandle pointing to power domain, only required by i.MX8qm and
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i.MX8qxp.
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Optional properties:
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- pinctrl-names : should be "default" on i.MX53, not used on i.MX6q and i.MX8qm
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- pinctrl-names : should be "default" on i.MX53, not used on i.MX6q, i.MX8qm
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and i.MX8qxp
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- pinctrl-0 : a phandle pointing to LVDS pin settings on i.MX53,
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not used on i.MX6q and i.MX8qm
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not used on i.MX6q, i.MX8qm and i.MX8qxp
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- fsl,dual-channel : boolean. if it exists, only LVDS channel 0 should
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be configured - one input will be distributed on both outputs in dual
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channel mode
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Currently, i.MX8qxp doesn't support dual channel mode.
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LVDS Channel
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============
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@ -68,12 +74,13 @@ Required properties:
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On i.MX6, there should be four input ports (port@[0-3]) that correspond
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to the four LVDS multiplexer inputs.
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On i.MX8qm, the two channels of LDB connect to one display interface of DPU.
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A single output port (port@2 on i.MX5, port@4 on i.MX6, port@1 on i.MX8qm)
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must be connected to a panel input port or a bridge input port.
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A single output port (port@2 on i.MX5, port@4 on i.MX6, port@1 on i.MX8qm
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and i.MX8qxp) must be connected to a panel input port or a bridge input port.
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Optionally, the output port can be left out if display-timings are used
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instead.
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- phys: the phandle for the LVDS PHY device. Valid only on i.MX8qm.
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- phy-names: should be "ldb_phy". Valid only on i.MX8qm.
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- phys: the phandle for the LVDS PHY device. Valid only on i.MX8qm and
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i.MX8qxp.
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- phy-names: should be "ldb_phy". Valid only on i.MX8qm and i.MX8qxp.
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Optional properties (required if display-timings are used):
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- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
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