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Date: Mon, 18 Mar 2019 18:01:50 +0530 From: Harini Katakam <harini.katakam@...inx.com> To: <nicolas.ferre@...rochip.com>, <davem@...emloft.net>, <richardcochran@...il.com>, <claudiu.beznea@...rochip.com>, <rafalo@...ence.com>, <andrei.pistirica@...rochip.com> CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <michal.simek@...inx.com>, <harinikatakamlinux@...il.com>, <harini.katakam@...inx.com> Subject: [RFC PATCH 0/2] Sub ns increment fixes in Macb PTP The subns increment register fields are not captured correctly in the driver. Fix the same and also increase the subns incr resolution. Sub ns resolution was increased to 24 bits in r1p06f2 version. To my knowledge, this PTP driver, with its current BD time stamp implementation, is only useful to that version or above. So, I have increased the resolution unconditionally. Please let me know if there is any IP versions incompatible with this - there is no register to obtain this information from. Harini Katakam (2): net: macb: Add separate definition for PPM fraction net: macb: Fix SUBNS increment and increase resolution drivers/net/ethernet/cadence/macb.h | 9 ++++++++- drivers/net/ethernet/cadence/macb_ptp.c | 7 +++++-- 2 files changed, 13 insertions(+), 3 deletions(-) -- 2.7.4
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