Re: [PATCH v8] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus

From: Maxime Ripard
Date: Tue Jul 04 2017 - 15:54:34 EST


On Sun, Jul 02, 2017 at 05:27:10PM +1000, Jonathan Liu wrote:
> The documentation for drm_do_get_edid in drivers/gpu/drm/drm_edid.c states:
> "As in the general case the DDC bus is accessible by the kernel at the I2C
> level, drivers must make all reasonable efforts to expose it as an I2C
> adapter and use drm_get_edid() instead of abusing this function."
> Exposing the DDC bus as an I2C adapter is more beneficial as it can be used
> for purposes other than reading the EDID such as modifying the EDID or
> using the HDMI DDC pins as an I2C bus through the I2C dev interface from
> userspace (e.g. i2c-tools).
> Implement this for A10s.
> Signed-off-by: Jonathan Liu <net147@xxxxxxxxx>

Thanks for your work on this, I've queued it in 3.14.

It will appear in my branches and next as soon as 3.13-rc1 is out.


Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering

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