Re: [linux-sunxi] [PATCH 14/15] ARM: dts: sun8i: h3: Enable HDMI output on H3 boards

From: Julian Calaby
Date: Sun Feb 25 2018 - 04:07:06 EST


Hi Icenowy,

On Sun, Feb 25, 2018 at 7:43 PM, Icenowy Zheng <icenowy@xxxxxxx> wrote:
>
>
> ä 2018å2æ25æ GMT+08:00 äå4:11:34, Julian Calaby <julian.calaby@xxxxxxxxx> åå:
>>Hi Jernej,
>>
>>On Sun, Feb 25, 2018 at 8:45 AM, Jernej Skrabec
>><jernej.skrabec@xxxxxxxx> wrote:
>>> Enable HDMI output on all boards which have HDMI connector.
>>>
>>> Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
>>> ---
>>> arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-beelink-x2.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-libretech-all-h3-cc.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-nanopi-m1.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-orangepi-2.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-orangepi-lite.dts | 25
>>++++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-orangepi-one.dts | 24
>>+++++++++++++++++++++
>>> arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 25
>>++++++++++++++++++++++
>>> 8 files changed, 199 insertions(+)
>>
>>As I understand it, the H2+ is just a slightly trimmed down H3. In
>>terms of HDMI support, the difference is that the H2+ can't output 4k.
>
> H2+ can OUTPUT 4K. The BSP restricts it to DECODE 4K. (And mainline won't have such restriction)

Interesting!

I'm getting my data from here: http://linux-sunxi.org/H3#Variants

So essentially what you're saying is that the H2+ is just a H3 with
less pins? (I'm assuming the "lack of gigabit mac" is effectively it
not having the required pins, i.e. GPIO bank D)

Thanks,

--
Julian Calaby

Email: julian.calaby@xxxxxxxxx
Profile: http://www.google.com/profiles/julian.calaby/