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(parent: 59440d8) | patch
serial: Use -EAGAIN in getc and putc
authorPali Rohár <pali@kernel.org>
Sat, 10 Dec 2022 23:31:21 +0000 (00:31 +0100)
committerTom Rini <trini@konsulko.com>
Mon, 2 Jan 2023 21:01:40 +0000 (16:01 -0500)
commit1138bbe05e617034cf542ac0bc13cfa804cb09f6
tree78bc2257f2d725955ac2145571ab586ac28d126atree | snapshot
parent59440d83d38bfed31931d11aa06a3fb56acbd2f0commit | diff
serial: Use -EAGAIN in getc and putc

U-Boot serial code already handles -EAGAIN value from getc and putc
callbacks. So change drivers code to return -EAGAIN when HW is busy instead
of doing its own busy loop and waiting until HW is ready.

Signed-off-by: Pali Rohár <pali@kernel.org>
drivers/serial/serial_arc.c diff | blob | history
drivers/serial/serial_lpuart.c diff | blob | history
drivers/serial/serial_mpc8xx.c diff | blob | history
drivers/serial/serial_mvebu_a3700.c diff | blob | history
Domain: System / Kernel;