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| Started by | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| First post | 2017-07-04 22:00 +0200 |
| Last post | 2017-07-04 22:00 +0200 |
| Articles | 1 — 1 participant |
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Re: [PATCH v8] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-07-04 22:00 +0200
| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2017-07-04 22:00 +0200 |
| Subject | Re: [PATCH v8] drm/sun4i: hdmi: Implement I2C adapter for A10s DDC bus |
| Message-ID | <tZC9k-4tP-9@gated-at.bofh.it> |
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Hi, 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@gmail.com> 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 -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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