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rpi_1335_071bba328d62a0df87d0b4d94797681c3850ac9a
commit 071bba3 Author: Phil Elwell <phil@raspberrypi.org> Date: Wed Aug 16 16:52:50 2017 +0100 BCM270X_DT: Set spidev spi-max-frequency to 125MHz The BCM2835 SPI controllers have a maximum bus clock of half the system clock speed, so with the 250MHz system clock found on Raspberry Pis you get a theoretical maximum bus speed of 125MHz. Note that this speed is unlikely to be reliable, and the maximum usable bus spee will depend on both the attached device and the wiring. See: raspberrypi/linux#2165 Signed-off-by: Phil Elwell <phil@raspberrypi.org> Gbp-Pq: Topic rpi Gbp-Pq: Name rpi_1335_071bba328d62a0df87d0b4d94797681c3850ac9a.patch
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