Re: [PATCH v2 3/7] drm: rockchip: vop: add rk3066 vop definitions

Hi Johan,

Am Samstag, 29. Dezember 2018, 14:33:14 CET schrieb Johan Jonker:

From: Mark Yao <redacted>

This patch adds the rk3066 VOP definitions.

The VOP or LCD Controller serves as interface between
framebuffer memory and a display device (LCD panel or TV set).

This SOC has two symmetrical LCDC's for a dual panel application.

A LCDC has 5 display layers.
Only 3 are used here.

- Video layer 0 (Win0)
- Video layer 1 (Win1)
- OSD layer     (Win2)

Patch itself looks good, we'll need to wait a bit to give Rob a chance
to look at the (simple) dt-binding change and I'll drop the paragraph
about the display layers when applying.

Looking at the rk3066-manual, the lcdcs really only have 3 fully usable
layers + the special cursor layer which is right now not really usable in
a drm context, so the above paragraph is misleading, so I'll just drop it.

Heiko

Win0 and Win1 are exchangeable.
Maximum resolution is 1920x1080.

The LCDC0 output is connected to:
- LCDC0 IO (without IOMUX)
- HDMI TX video input

The LCDC1 output is connected to:
- LCDC1 IO (with IOMUX)
- HDMI TX video input

The HDMI TX input can switch between LCDC0 and LCDC1.

Signed-off-by: Mark Yao <redacted>
Signed-off-by: Johan Jonker <redacted>

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