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ptp: idt82p33: Add PTP_CLK_REQ_EXTTS support
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82P33 family of chips can trigger TOD read/write by external
signal from one of the IN12/13/14 pins, which are set user
space programs by calling PTP_PIN_SETFUNC through ptp_ioctl

Signed-off-by: Min Li <min.li.xe@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Min Li authored and David S. Miller committed Nov 25, 2022
1 parent eea7b31 commit ad3cc77
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