Re: [PATCH 3/6] dt-bindings: display: sitronix,st7735r: Remove spi-max-frequency limit

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




Den 06.12.2021 16.19, skrev David Lechner:
> On 11/24/21 9:07 AM, Noralf Trønnes wrote:
>> The datasheet lists the minimum Serial clock cycle (Write) as 66ns
>> which is
> 
> Is this supposed to say "maximum" rather than "minimum"?
> 

Minimum cycle time == maximum frequency.

Noralf.

>> 15MHz. Mostly it can do much better than that and is in fact often run at
>> 32MHz. With a clever driver that runs configuration commands at a low
>> speed
>> and only the pixel data at the maximum speed the configuration can't be
>> messed up by transfer errors and the speed is only limited by the
>> amount of
>> pixel glitches that one is able to tolerate.
>>
>> Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
>> ---
> Acked-by: David Lechner <david@xxxxxxxxxxxxxx>



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux