sherifeid

hi there, I tried `force_turbo=1` and fixing core/gpu frequencies as above, still SPI frequency keeps jumping around, is there any workaround to keep SPI frequency constant? I have an application...

guys this is so painful, @pelwell is there a simple way to disable SPI frequency change, rpi 3 SPI frequency is constant, rpi 4 keeps scaling down by 1/2, 1/4,...

Thanks @pelwell , the settings are on different lines (displayed problem in comment), I already had `enable_uart=1` I'm trying some experiments (comment out enable_uart), also changing frequencies to zero like...

I do have a question, what clock source does the SPI block take, gpu or core? I always run the core speed test and frequency doesn't change, gpu frequency on...

@pelwell , I'm sorry I didn't clarify, I'm using a RPi 4 according to the post here https://github.com/raspberrypi/linux/issues/3381#issuecomment-567536640 SPI clock is controlled by VPU, which I'm assuming is different from...

I'd like to report back on the findings, after `rpi-update` the kernel updated from `4.19.118-v7l+` to `5.4.51-v7l+`. I tried with only `enable_uart=1` and removing all frequency settings, the core frequency...