<narmstrong>
lvrp16: nice !! Writing the original driver was already a nightmare
<lvrp16>
narmstrong: I looked at Amlogic's 3 version of voodoo from u-boot and their BSP linux. Your version is sane.
<lvrp16>
but GXL datasheets do not even have the registers documented.
<lvrp16>
performance on an application like ili9486 is around 50% for SM1 and 100% for GXL. I'll dig in a little later to see why the benefit is so little for SM1
<lvrp16>
right now it's limited by the gpio ss controls
<lvrp16>
I wonder if the SS controls can be mixed, one by spicc and one by gpio
<narmstrong>
yes, you only need to set the right pinctrl for each SS, one in hw and the other in gpio, but the SS is really is "transfer-active" signal than a CS signal