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Re: [PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus

From Maxime Ripard <maxime.ripard@free-electrons.com>
Newsgroups linux.kernel
Subject Re: [PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus
Date 2017-06-29 18:00 +0200
Message-ID <tXK1l-11t-23@gated-at.bofh.it> (permalink)
References <tXiRr-5KR-5@gated-at.bofh.it>
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Hi,

On Wed, Jun 28, 2017 at 08:52:24PM +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@gmail.com>

Please wait before the discussion stops before sending the new
version. We still have one ongoing on the v5, and you sent v6 and v7
in between.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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Thread

[PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus Jonathan Liu <net147@gmail.com> - 2017-06-28 13:00 +0200
  Re: [PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus Chen-Yu Tsai <wens@csie.org> - 2017-06-29 04:50 +0200
    Re: [PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus Jonathan Liu <net147@gmail.com> - 2017-06-29 05:50 +0200
  Re: [PATCH v7] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC  bus Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-06-29 18:00 +0200

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