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| Started by | Chen-Yu Tsai <wens@csie.org> |
|---|---|
| First post | 2016-11-28 11:20 +0100 |
| Last post | 2016-11-29 22:50 +0100 |
| Articles | 3 — 2 participants |
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Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 Chen-Yu Tsai <wens@csie.org> - 2016-11-28 11:20 +0100
Re: [linux-sunxi] Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 Chen-Yu Tsai <wens@csie.org> - 2016-11-28 11:30 +0100
Re: [linux-sunxi] Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-11-29 22:50 +0100
| From | Chen-Yu Tsai <wens@csie.org> |
|---|---|
| Date | 2016-11-28 11:20 +0100 |
| Subject | Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 |
| Message-ID | <sIrct-P3-15@gated-at.bofh.it> |
On Mon, Nov 28, 2016 at 5:59 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote:
> As there's currently a fork of U-Boot which provides simplefb support
Please add it when its finalized...
> for H3, a simplefb node can be added to the device tree.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
> ---
>
> I'm still not sure which pipeline should I use.
You are supposed to add _all_ the pipelines that are available and
supported by U-boot. U-boot is then supposed to enable and update
the one it set up.
ChenYu
>
> And, it seems that HDMI Slow Clock is not needed?
>
> (seems that it's only for EDID, but simplefb won't use EDID)
>
> arch/arm/boot/dts/sun8i-h3.dtsi | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
> index 75a8654..cacc8dd 100644
> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
> @@ -50,6 +50,22 @@
> / {
> interrupt-parent = <&gic>;
>
> + chosen {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + simplefb_hdmi: framebuffer@0 {
> + compatible = "allwinner,simple-framebuffer",
> + "simple-framebuffer";
> + allwinner,pipeline = "de0-lcd0-hdmi";
> + clocks = <&ccu CLK_BUS_TCON0>, <&ccu CLK_BUS_DE>,
> + <&ccu CLK_BUS_HDMI>, <&ccu CLK_DE>,
> + <&ccu CLK_TCON0>, <&ccu CLK_HDMI>;
> + status = "disabled";
> + };
> + };
> +
> cpus {
> #address-cells = <1>;
> #size-cells = <0>;
> --
> 2.10.2
>
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| From | Chen-Yu Tsai <wens@csie.org> |
|---|---|
| Date | 2016-11-28 11:30 +0100 |
| Subject | Re: [linux-sunxi] Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 |
| Message-ID | <sIrma-Si-7@gated-at.bofh.it> |
| In reply to | #1531175 |
On Mon, Nov 28, 2016 at 6:19 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote:
>
>
> 28.11.2016, 18:07, "Chen-Yu Tsai" <wens@csie.org>:
>> On Mon, Nov 28, 2016 at 5:59 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote:
>>> As there's currently a fork of U-Boot which provides simplefb support
>>
>> Please add it when its finalized...
>>
>>> for H3, a simplefb node can be added to the device tree.
>>>
>>> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
>>> ---
>>>
>>> I'm still not sure which pipeline should I use.
>>
>> You are supposed to add _all_ the pipelines that are available and
>> supported by U-boot. U-boot is then supposed to enable and update
>> the one it set up.
>
> I mean the pipeline string ;-)
Looks good to me. There's no separate frontend/backend in DE 2.0.
ChenYu
>
>>
>> ChenYu
>>
>>> And, it seems that HDMI Slow Clock is not needed?
>>>
>>> (seems that it's only for EDID, but simplefb won't use EDID)
>>>
>>> arch/arm/boot/dts/sun8i-h3.dtsi | 16 ++++++++++++++++
>>> 1 file changed, 16 insertions(+)
>>>
>>> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
>>> index 75a8654..cacc8dd 100644
>>> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
>>> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
>>> @@ -50,6 +50,22 @@
>>> / {
>>> interrupt-parent = <&gic>;
>>>
>>> + chosen {
>>> + #address-cells = <1>;
>>> + #size-cells = <1>;
>>> + ranges;
>>> +
>>> + simplefb_hdmi: framebuffer@0 {
>>> + compatible = "allwinner,simple-framebuffer",
>>> + "simple-framebuffer";
>>> + allwinner,pipeline = "de0-lcd0-hdmi";
>>> + clocks = <&ccu CLK_BUS_TCON0>, <&ccu CLK_BUS_DE>,
>>> + <&ccu CLK_BUS_HDMI>, <&ccu CLK_DE>,
>>> + <&ccu CLK_TCON0>, <&ccu CLK_HDMI>;
>>> + status = "disabled";
>>> + };
>>> + };
>>> +
>>> cpus {
>>> #address-cells = <1>;
>>> #size-cells = <0>;
>>> --
>>> 2.10.2
>
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| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2016-11-29 22:50 +0100 |
| Subject | Re: [linux-sunxi] Re: [RFC PATCH] ARM: dts: sun8i: add simplefb node for H3 |
| Message-ID | <sIYrL-5u6-19@gated-at.bofh.it> |
| In reply to | #1531183 |
[Multipart message — attachments visible in raw view] — view raw
On Mon, Nov 28, 2016 at 06:24:24PM +0800, Chen-Yu Tsai wrote: > On Mon, Nov 28, 2016 at 6:19 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote: > > > > > > 28.11.2016, 18:07, "Chen-Yu Tsai" <wens@csie.org>: > >> On Mon, Nov 28, 2016 at 5:59 PM, Icenowy Zheng <icenowy@aosc.xyz> wrote: > >>> As there's currently a fork of U-Boot which provides simplefb support > >> > >> Please add it when its finalized... > >> > >>> for H3, a simplefb node can be added to the device tree. > >>> > >>> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> > >>> --- > >>> > >>> I'm still not sure which pipeline should I use. > >> > >> You are supposed to add _all_ the pipelines that are available and > >> supported by U-boot. U-boot is then supposed to enable and update > >> the one it set up. > > > > I mean the pipeline string ;-) > > Looks good to me. There's no separate frontend/backend in DE 2.0. It looks good to me too. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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