Hello:
I meet a problem with eDP in rk3288 with the linux next 20161006, it
is just like the early stage of 4.4
kernel. I have added a eDP panel entry in the firefly reload board,
once the kernel loaded analogix_dp-rockchip.ko, after printed the
following two lines, the kernel stop working.
rockchip-drm display-subsystem: bound ff940000.vop (ops
vop_component_ops [rockchipdrm])
rockchip-drm display-subsystem: bound ff930000.vop (ops
vop_component_ops [rockchipdrm])
In the early June of the 4.4 kernel, I meet the same problem with rk3288
evb board with different error message, I have to disable the display
system that time.
In the today test, I meet the same problem with rk3399 evb board in 4.4.
I have no idea what caused that, and it is a little hard to debug as
kernel still would never kill that task.
Randy Li
On 2016年10月16日 02:03, ayaka wrote:
> Hello:
> I meet a problem with eDP in rk3288 with the linux next 20161006,
> it is just like the early stage of 4.4
> kernel. I have added a eDP panel entry in the firefly reload board,
> once the kernel loaded analogix_dp-rockchip.ko, after printed the
> following two lines, the kernel stop working.
> rockchip-drm display-subsystem: bound ff940000.vop (ops
> vop_component_ops [rockchipdrm])
> rockchip-drm display-subsystem: bound ff930000.vop (ops
> vop_component_ops [rockchipdrm])
Hi ayaka
This log seems no problem.
How about tested it with build-in? we had test it with build-in.
Maybe this patch can help you, you can have a try.
https://patchwork.kernel.org/patch/9374135
Thanks.
> In the early June of the 4.4 kernel, I meet the same problem with
> rk3288 evb board with different error message, I have to disable the
> display system that time.
> In the today test, I meet the same problem with rk3399 evb board in
> 4.4.
> I have no idea what caused that, and it is a little hard to debug as
> kernel still would never kill that task.
> Randy Li
>
>
>
--
Ｍark Yao
On 10/17/2016 08:57 AM, Mark yao wrote:
> On 2016年10月16日 02:03, ayaka wrote:
>> Hello:
>> I meet a problem with eDP in rk3288 with the linux next 20161006,
>> it is just like the early stage of 4.4
>> kernel. I have added a eDP panel entry in the firefly reload board,
>> once the kernel loaded analogix_dp-rockchip.ko, after printed the
>> following two lines, the kernel stop working.
>> rockchip-drm display-subsystem: bound ff940000.vop (ops
>> vop_component_ops [rockchipdrm])
>> rockchip-drm display-subsystem: bound ff930000.vop (ops
>> vop_component_ops [rockchipdrm])
>
> Hi ayaka
>
> This log seems no problem.
I found the problem, it is the eDP_AVDD_1V0 and eDP_AVDD_1V8 must have a
proper power supply. I would submit a patch to enable the regulator at
DP driver.
>
> How about tested it with build-in? we had test it with build-in.
>
> Maybe this patch can help you, you can have a try.
> https://patchwork.kernel.org/patch/9374135
>
> Thanks.
>
>> In the early June of the 4.4 kernel, I meet the same problem with
>> rk3288 evb board with different error message, I have to disable the
>> display system that time.
>> In the today test, I meet the same problem with rk3399 evb board in
>> 4.4.
>> I have no idea what caused that, and it is a little hard to debug as
>> kernel still would never kill that task.
>> Randy Li
>>
>>
>>
>
>
--
Randy Li
The third produce department
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