kondaveetiarungopal
Posts: 88
Joined: Fri Apr 26, 2013 6:35 am

official display with dsi interface for bought

Mon Nov 12, 2018 10:56 am

Hi,

can you Please tell me how to interface display using dsi Interface.can you Please send a link for official display with dsi interface

can you Please share a any docucment related to the dsi interface layer..what are the driver files it is containing in the linux kernel.how to enable the dsi related files in the linux kernel.
iam new to dsi Interface.can you Please help me

jamesh
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Re: official display with dsi interface for bought

Mon Nov 12, 2018 11:10 am

https://www.raspberrypi.org/learning/ad ... e/display/

The DSI interface is usually run from the GPU, so the sourececode is unavailable

However, we now have the userland video driver, currently in beta test, where the interface is on the Arm, so that is available to look at and also generate your own drivers.
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kondaveetiarungopal
Posts: 88
Joined: Fri Apr 26, 2013 6:35 am

Re: official display with dsi interface for bought

Tue Nov 13, 2018 7:11 am

HI,
Thank you for your reply.

The DSI interface is usually run from the GPU, so the source code is unavailable

can you Please elaborate above statement.from above Statement DSI Host in GPU or CPU?

we are connecting lCD so directly it is connecting to GPU or CPU?

2)if i bought that display how to understand the DSI INterface and what are the modifications i have to done for lCD?

3)However, we now have the userland video driver, currently in beta test, where the interface is on the Arm, so that is available to look at and also generate your own drivers

can you Please send the link for above user land driver.

4)can you Please send some links how the one video is working in GPU for Understanding?


Reg,

k.Arungopal

gsh
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Re: official display with dsi interface for bought

Tue Nov 13, 2018 11:57 am

You'll have to go look at the up-streamed GPU code in the linux kernel. We do not support this interface at the moment so cannot offer any further support

https://github.com/torvalds/linux/blob/ ... chscreen.c

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Re: official display with dsi interface for bought

Tue Nov 13, 2018 12:39 pm

Eric has also written up some notes on adding DSI panels https://github.com/anholt/linux/wiki/Ra ... lay-panels
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kondaveetiarungopal
Posts: 88
Joined: Fri Apr 26, 2013 6:35 am

Re: official display with dsi interface for bought

Sat Nov 24, 2018 1:54 pm

what are the kernel changes i have to do for bring up of that display?

jamesh
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Re: official display with dsi interface for bought

Sat Nov 24, 2018 3:24 pm

kondaveetiarungopal wrote:
Sat Nov 24, 2018 1:54 pm
what are the kernel changes i have to do for bring up of that display?
The Raspberry Pi official display?

Just plug it in and it will work. It's all handled by the GPU, and appears as a standard framebuffer in Linux.
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