Val Packett 3c08673438 spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags ... These feature are required for an upcoming Apple MacBook topcase (HID over SPI) driver: A delay after toggling CS is required to avoid anomalies like an extra junk byte in front of the message. Keeping CS asserted is required to be able to read a status report after writing a command. (The device won't return the status if CS was deasserted.) Sleep is not allowed in the interrupt context where the Apple input driver runs its transactions. Use a flag to tell the SPI driver to avoid mtx_sleep. Reviewed by: manu (ok to SPI part of larger patch) MFC afret: 1 month Differential revision: https://reviews.freebsd.org/D29534		2023-04-24 12:41:52 +03:00
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ofw_spibus.c	Remove unused spibus_devclass and ofw_spibus_devclass.	2022-05-09 12:22:00 -07:00
spi.h	spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags	2023-04-24 12:41:52 +03:00
spibus.c	spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags	2023-04-24 12:41:52 +03:00
spibus_if.m
spibusvar.h	spibus: extend API: add cs_delay ivar, KEEP_CS and NO_SLEEP flags	2023-04-24 12:41:52 +03:00
spigen.c	spigen: Remove unused devclass argument to DRIVER_MODULE.	2022-05-09 12:22:04 -07:00