Thread (35 messages) 35 messages, 6 authors, 2018-02-27

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

From: icenowy@aosc.io (Icenowy Zheng)
Date: 2018-02-25 09:09:29
Also in: dri-devel, linux-clk, linux-devicetree, lkml


? 2018?2?25? GMT+08:00 ??5:06:32, Julian Calaby [off-list ref] ??:
Hi Icenowy,

On Sun, Feb 25, 2018 at 7:43 PM, Icenowy Zheng [off-list ref] wrote:
quoted

? 2018?2?25? GMT+08:00 ??4:11:34, Julian Calaby
[off-list ref] ??:
quoted
quoted
Hi Jernej,

On Sun, Feb 25, 2018 at 8:45 AM, Jernej Skrabec
[off-list ref] wrote:
quoted
Enable HDMI output on all boards which have HDMI connector.

Signed-off-by: Jernej Skrabec <redacted>
---
 arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts    | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-beelink-x2.dts          | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-libretech-all-h3-cc.dts | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-nanopi-m1.dts           | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-orangepi-2.dts          | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-orangepi-lite.dts       | 25
++++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-orangepi-one.dts        | 24
+++++++++++++++++++++
quoted
 arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts         | 25
++++++++++++++++++++++
quoted
 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.
quoted
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)
No it's just downspec and BSP decode code restricts 4K
decode (by reserving less memory).

Just similar to STM32F103C8T6, which has a spec of 64KiB Flash, but with in fact 128KiB usable.

For GbE with H2+, it's verified by Banana Pi.
Thanks,
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