Re: [PATCH RFC 3/6] drm/msm: mdss: Add Milos support

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 12/22/25 10:12 AM, Dmitry Baryshkov wrote:
> On 22/12/2025 11:09, Konrad Dybcio wrote:
>> On 12/20/25 5:52 PM, Dmitry Baryshkov wrote:
>>> On Fri, Dec 19, 2025 at 05:41:09PM +0100, Luca Weiss wrote:
>>>> Add support for MDSS on Milos.
>>>>
>>>> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
>>>> ---
>>>>   drivers/gpu/drm/msm/msm_mdss.c | 5 +++++
>>>>   1 file changed, 5 insertions(+)
>>>>
>>>
>>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
>>>
>>> Though 14000 seems lower than the value for all other platforms.
>>
>> IIUC it's essentially "nonzero" or "first-level-above-just-nonzero"
>>
>> The downstream DT also defines a 140_000 and a 310_000 point.. though
>> the middle one is never(?) used and the latter one is only used during
>> UEFI handoff and upon the first commit after (runtime) resume
> 
> If I remember correctly, those are also used for programming the LUTs or other big tables into the hardware.

FWIW this is an interconnect path for non-DMA accesses so that only
makes sense - huge writes could overwhelm the bus

Konrad