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authorFugang Duan <fugang.duan@nxp.com>2019-07-17 13:19:30 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-04 12:43:45 +0200
commitf77ebb241ce00ec99ed4e42ff3ab38dd6d1ce6f5 (patch)
tree21c9df095ee8db1e58aae077ffbea8ce7467e1f4 /tools/perf/scripts/python/export-to-postgresql.py
parent638341d5dbd11f057a9b00176ade767b08a9e95f (diff)
tty: serial: fsl_lpuart: correct the FIFO depth size
VF610/LS1021a/i.MX7ULP/i.MX8QXP reference manual describe the TXFIFOSIZE/RXFIFOSIZE field as below. 000b - FIFO/Buffer depth = 1 dataword. 001b - FIFO/Buffer depth = 4 datawords. 010b - FIFO/Buffer depth = 8 datawords. 011b - FIFO/Buffer depth = 16 datawords. 100b - FIFO/Buffer depth = 32 datawords. 101b - FIFO/Buffer depth = 64 datawords. 110b - FIFO/Buffer depth = 128 datawords. 111b - FIFO/Buffer depth = 256 datawords. (Reserved for VF610) So the FIFO depth should be: 0x1 << (val ? (val + 1) : 0) Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Link: https://lore.kernel.org/r/20190717051930.15514-6-fugang.duan@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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