[PATCH 0/9] Doc/DT: DT bindings for various display components (original) (raw)
Sebastian Hesselbarth sebastian.hesselbarth at gmail.com
Fri Feb 28 04:57:36 PST 2014
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On 02/28/14 13:20, Tomi Valkeinen wrote:
This series is a re-send of http://article.gmane.org/gmane.linux.drivers.devicetree/61739 ... Shortly about the display components in the series, in the order of probable public interest:
* Analog TV, DVI and HDMI Connectors represent a respective connector on the board. They don't do much, but they do mark the end of the video pipeline (from the board's pov), and they should also in the future offer ways to handle things like the +5V pin on DVI and HDMI connector and HPD pin. * MIPI DPI panel and MIPI DSI CM panels represent bindings for simple panels using the respective video bus. * Sony acx565akm is an SPI controlled panel using flatlink video bus. * TFP410 is a DPI to DVI encoder. * TPD12S015 is a HDMI companion chip, used on OMAP boards.
Tomi,
Out of curiosity, will there be DT nodes for pull-up resistors soon, too? ;)
Honestly, TPD12S015 is a level shifter, there is nothing in it that would justify a DT node nor a driver.
Above you already note, that connector nodes should offer HPD in the future, but I guess the binding should represent that now already. I will be a DT stub anyway, the corresponding video sink driver will have to look it up.
Looking through the bindings for DVI and HDMI, I guess HPD gpio is better kept in those nodes. From the relevant (DT) properties DVI and HDMI connectors are in no way different.
Sebastian
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