Messages in this thread | | | Date | Wed, 14 Feb 2018 16:04:24 +0000 | From | Mark Brown <> | Subject | Re: [PATCH] spi: bcm2835aux: Avoid 64-bit arithmetic in xfer len calc |
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On Mon, Feb 12, 2018 at 11:38:14AM -0800, Trent Piepho wrote: > We want to check for xfers that are over 30 microseconds. Rather than > find how many µs a xfer will take, instead find how many bytes can be > transferred in 30 µs. The latter must be less than 32 bits (since our > clock speed is limited to 32 bits), while the former involves 64 bit > quantities and more arithmetic operations.
Please don't bury patches in the middle of existing threads, it makes it much harder to find them. [unhandled content-type:application/pgp-signature] | |