Re: [PATCH v3 00/11] Optimize spi_sync path

[Thomas Kopp <thomas.kopp@xxxxxxxxxxxxx>]

Hi David,
 
some numbers after testing your patch on a RPI 5.15.y vs 5.19rc6 and the mcp2518fd:

Two Backtoback SPI transfers with 9 byte each went from 78us to 36us! All metrics improved (cs to first clock cyle, last clock cycle to cs, and delay between two transfers). That's a great help for the mcp driver (or any similar SPI device).

Thanks for your work on this!
-Thomas