> On Sep 1, 2020, at 03:48, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
>
> On Thu, Aug 27, 2020 at 01:04:54PM +0800, Kai Heng Feng wrote:
>> Hi Ville,
>>
>>> On Aug 27, 2020, at 12:24 AM, Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
>>>
>>> On Wed, Aug 26, 2020 at 01:21:15PM +0800, Kai-Heng Feng wrote:
>>>> LSPCON only supports 8 bpc for RGB/YCbCr444.
>>>>
>>>> Set the correct bpp otherwise it renders blank screen.
>>>
>>> Hmm. Does
>>> git://github.com/vsyrjala/linux.git dp_downstream_ports_5
>>> work?
>>>
>>> Actually better make that dp_downstream_ports_5^^^^^^^^^^^ aka.
>>> 54d846ce62a2 ("drm/i915: Do YCbCr 444->420 conversion via DP protocol
>>> converters") to avoid the experiments and hacks I have sitting on top.
>>
>> Can you please rebase it to mainline master or drm-tip?
>
> git://github.com/vsyrjala/linux.git dp_downstream_ports_6
Yes this solves the issue. Thanks a lot!
Any timeline this will get merged?
Kai-Heng
>
> I threw out the hacks/experimental stuff.
>
>>
>> I am getting errors on the branch:
>>
>> DESCEND objtool
>> CALL scripts/atomic/check-atomics.sh
>> CALL scripts/checksyscalls.sh
>> CHK include/generated/compile.h
>> Building modules, stage 2.
>> MODPOST 166 modules
>> LD arch/x86/boot/compressed/vmlinux
>> ld: arch/x86/boot/compressed/pgtable_64.o:(.bss+0x0): multiple definition of `__force_order'; arch/x86/boot/compressed/kaslr_64.o:(.bss+0x0): first defined here
>> ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text'
>> ld: warning: creating DT_TEXTREL in a PIE
>> make[2]: *** [arch/x86/boot/compressed/Makefile:119: arch/x86/boot/compressed/vmlinux] Error 1
>> make[1]: *** [arch/x86/boot/Makefile:113: arch/x86/boot/compressed/vmlinux] Error 2
>> make: *** [arch/x86/Makefile:284: bzImage] Error 2
>> make: *** Waiting for unfinished jobs....
>>
>> Kai-Heng
>>
>>>
>>>>
>>>> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2195
>>>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
>>>> ---
>>>> drivers/gpu/drm/i915/display/intel_lspcon.c | 3 ++-
>>>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
>>>> index b781bf469644..c7a44fcaade8 100644
>>>> --- a/drivers/gpu/drm/i915/display/intel_lspcon.c
>>>> +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
>>>> @@ -196,7 +196,8 @@ void lspcon_ycbcr420_config(struct drm_connector *connector,
>>>> crtc_state->port_clock /= 2;
>>>> crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR444;
>>>> crtc_state->lspcon_downsampling = true;
>>>> - }
>>>> + } else
>>>> + crtc_state->pipe_bpp = 24;
>>>> }
>>>>
>>>> static bool lspcon_probe(struct intel_lspcon *lspcon)
>>>> --
>>>> 2.17.1
>>>
>>> --
>>> Ville Syrjälä
>>> Intel
>
> --
> Ville Syrjälä
> Intel
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