lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fec: Fix timer capture timing in fec_ptp_enable_pps()

Browse Source 
commit 61d5e2a251fb20c2c5e998c3f1d52ed6d5360319 upstream.

Code reimplements functionality already in `fec_ptp_read()`,
but misses check for FEC_QUIRK_BUG_CAPTURE. Replace with function call.

Fixes: 28b5f058cf ("net: fec: ptp: fix convergence issue to support LinuxPTP stack")
Signed-off-by: Csókás Bence <csokas.bence@prolan.hu>
Link: https://lore.kernel.org/r/20220811101348.13755-1-csokas.bence@prolan.hu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Csókás Bence 2022-08-11 12:13:49 +02:00 committed by Greg Kroah-Hartman
parent f861285de8
commit 44b406aab0
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/freescale/fec_ptp.c
View File

@ -141,11 +141,7 @@ static int fec_ptp_enable_pps(struct fec_enet_private *fep, uint enable)
* NSEC_PER_SEC - ts.tv_nsec. Add the remaining nanoseconds
* to current timer would be next second.
*/
tempval = readl(fep->hwp + FEC_ATIME_CTRL);
tempval |= FEC_T_CTRL_CAPTURE;
writel(tempval, fep->hwp + FEC_ATIME_CTRL);
tempval = readl(fep->hwp + FEC_ATIME);
tempval = fep->cc.read(&fep->cc);
/* Convert the ptp local counter to 1588 timestamp */
ns = timecounter_cyc2time(&fep->tc, tempval);
ts = ns_to_timespec64(ns);