diff options
Diffstat (limited to 'Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index 3346c1e2a7a0..f8773ecb7525 100644 --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt @@ -103,6 +103,7 @@ Required properties: - compatible: value must be one of: * allwinner,sun8i-a83t-hdmi-phy * allwinner,sun8i-h3-hdmi-phy + * allwinner,sun50i-a64-hdmi-phy - reg: base address and size of memory-mapped region - clocks: phandles to the clocks feeding the HDMI PHY * bus: the HDMI PHY interface clock @@ -111,8 +112,9 @@ Required properties: - resets: phandle to the reset controller driving the PHY - reset-names: must be "phy" -H3 HDMI PHY requires additional clock: +H3 and A64 HDMI PHY require additional clocks: - pll-0: parent of phy clock + - pll-1: second possible phy clock parent (A64 only) TV Encoder ---------- @@ -145,6 +147,7 @@ Required properties: * allwinner,sun8i-a33-tcon * allwinner,sun8i-a83t-tcon-lcd * allwinner,sun8i-a83t-tcon-tv + * allwinner,sun8i-r40-tcon-tv * allwinner,sun8i-v3s-tcon * allwinner,sun9i-a80-tcon-lcd * allwinner,sun9i-a80-tcon-tv @@ -179,7 +182,7 @@ For TCONs with channel 0, there is one more clock required: For TCONs with channel 1, there is one more clock required: - 'tcon-ch1': The clock driving the TCON channel 1 -When TCON support LVDS (all TCONs except TV TCON on A83T and those found +When TCON support LVDS (all TCONs except TV TCONs on A83T, R40 and those found in A13, H3, H5 and V3s SoCs), you need one more reset line: - 'lvds': The reset line driving the LVDS logic @@ -187,6 +190,62 @@ And on the A23, A31, A31s and A33, you need one more clock line: - 'lvds-alt': An alternative clock source, separate from the TCON channel 0 clock, that can be used to drive the LVDS clock +TCON TOP +-------- + +TCON TOPs main purpose is to configure whole display pipeline. It determines +relationships between mixers and TCONs, selects source TCON for HDMI, muxes +LCD and TV encoder GPIO output, selects TV encoder clock source and contains +additional TV TCON and DSI gates. + +It allows display pipeline to be configured in very different ways: + + / LCD0/LVDS0 + / [0] TCON-LCD0 + | \ MIPI DSI + mixer0 | + \ / [1] TCON-LCD1 - LCD1/LVDS1 + TCON-TOP + / \ [2] TCON-TV0 [0] - TVE0/RGB + mixer1 | \ + | TCON-TOP - HDMI + | / + \ [3] TCON-TV1 [1] - TVE1/RGB + +Note that both TCON TOP references same physical unit. Both mixers can be +connected to any TCON. + +Required properties: + - compatible: value must be one of: + * allwinner,sun8i-r40-tcon-top + - reg: base address and size of the memory-mapped region. + - clocks: phandle to the clocks feeding the TCON TOP + * bus: TCON TOP interface clock + * tcon-tv0: TCON TV0 clock + * tve0: TVE0 clock + * tcon-tv1: TCON TV1 clock + * tve1: TVE0 clock + * dsi: MIPI DSI clock + - clock-names: clock name mentioned above + - resets: phandle to the reset line driving the TCON TOP + - #clock-cells : must contain 1 + - clock-output-names: Names of clocks created for TCON TV0 channel clock, + TCON TV1 channel clock and DSI channel clock, in that order. + +- ports: A ports node with endpoint definitions as defined in + Documentation/devicetree/bindings/media/video-interfaces.txt. 6 ports should + be defined: + * port 0 is input for mixer0 mux + * port 1 is output for mixer0 mux + * port 2 is input for mixer1 mux + * port 3 is output for mixer1 mux + * port 4 is input for HDMI mux + * port 5 is output for HDMI mux + All output endpoints for mixer muxes and input endpoints for HDMI mux should + have reg property with the id of the target TCON, as shown in above graph + (0-3 for mixer muxes and 0-1 for HDMI mux). All ports should have only one + endpoint connected to remote endpoint. + DRC --- @@ -341,6 +400,7 @@ Required properties: * allwinner,sun8i-a33-display-engine * allwinner,sun8i-a83t-display-engine * allwinner,sun8i-h3-display-engine + * allwinner,sun8i-r40-display-engine * allwinner,sun8i-v3s-display-engine * allwinner,sun9i-a80-display-engine |