diff options
| author | Harini Katakam <harini.katakam@xilinx.com> | 2019-06-27 11:50:59 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-29 11:09:18 -0700 |
| commit | a8ee4dc1b5937ef60e04e11c6dd6039099d1069d (patch) | |
| tree | 92b15d5d3bdd00ea9586cd388b8349d688ffa054 /drivers/net/ethernet/cadence | |
| parent | 79293f49677e2e703ef0d0efc9919319adacb3fb (diff) | |
| download | linux-a8ee4dc1b5937ef60e04e11c6dd6039099d1069d.tar.bz2 | |
net: macb: Add separate definition for PPM fraction
The scaled ppm parameter passed to _adjfine() contains a 16 bit
fraction. This just happens to be the same as SUBNSINCR_SIZE now.
Hence define this separately.
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/cadence/macb_ptp.c | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 6ff123da6a14..b3b2a00b620d 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -834,6 +834,9 @@ struct gem_tx_ts { /* limit RX checksum offload to TCP and UDP packets */ #define GEM_RX_CSUM_CHECKED_MASK 2 +/* Scaled PPM fraction */ +#define PPM_FRACTION 16 + /* struct macb_tx_skb - data about an skb which is being transmitted * @skb: skb currently being transmitted, only set for the last buffer * of the frame diff --git a/drivers/net/ethernet/cadence/macb_ptp.c b/drivers/net/ethernet/cadence/macb_ptp.c index 0a8aca8d3634..6276eac8056b 100644 --- a/drivers/net/ethernet/cadence/macb_ptp.c +++ b/drivers/net/ethernet/cadence/macb_ptp.c @@ -135,7 +135,7 @@ static int gem_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) * (temp / USEC_PER_SEC) + 0.5 */ adj += (USEC_PER_SEC >> 1); - adj >>= GEM_SUBNSINCR_SIZE; /* remove fractions */ + adj >>= PPM_FRACTION; /* remove fractions */ adj = div_u64(adj, USEC_PER_SEC); adj = neg_adj ? (word - adj) : (word + adj); |