[RFC PATCH v2 19/21] ARM: dts: exynos5250-arndale: add dsi and panel nodes (original) (raw)

Tomi Valkeinen tomi.valkeinen at ti.com
Fri Feb 28 05:39:31 PST 2014

On 28/02/14 15:31, Tomi Valkeinen wrote:

Compared to what I've done on OMAP, you don't seem to specify the video inputs for the tc358764 at all. In this case it's obvious, as the chip is a child of the DSI master. But the chip could as well be controlled via i2c, and so be placed as a child of the i2c nodes.

So even if the driver doesn't use it, maybe it would be more future proof to have both input and output endpoints for the tc358764?

Oh, and one addition: how me and Laurent see the DSI case (and other similar ones), the child/parent relationship gives the control bus path, and the video ports give the video data path.

So both are always needed. A DSI panel may be controlled via DSI, i2c, spi, but the video path will always go from DSI master to the panel.

Or, as a theoretical panel, you could have a DSI controlled panel, being a child of the DSI master, but the video data would come via, say, parallel RGB. You can actually do that with some panels/encoders, even if the concept is silly.

Tomi

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