[PATCH v3 3/7] spi: spi-ep93xx: add spi master prepare_transfer_hardware()

From: H Hartley Sweeten This driver currently enables the hardware at the start of every message and disabled it when the message is complete. Make it a bit smarter by adding the prepare_transfer_hardware() and unprepare_transfer_hardware() callbacks so that the

[PATCH v3 3/7] spi: spi-ep93xx: add spi master prepare_transfer_hardware()

From: H Hartley Sweeten This driver currently enables the hardware at the start of every message and disabled it when the message is complete. Make it a bit smarter by adding the prepare_transfer_hardware() and unprepare_transfer_hardware() callbacks so that the core can enable/disable the