diff options
author | Jakub Kicinski <kuba@kernel.org> | 2022-09-22 23:02:10 +0300 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-22 23:02:10 +0300 |
commit | 0140a7168f8b2732f622fa2c500f1f8be212382a (patch) | |
tree | c68688552d97f914398c53e233acc696b86afc65 /drivers/net/ethernet/freescale/fec_ptp.c | |
parent | f8b2cce430d92ec927915ba4bc8088fe99659dbc (diff) | |
parent | 504c25cb76a9cb805407f7701b25a1fbd48605fa (diff) | |
download | linux-0140a7168f8b2732f622fa2c500f1f8be212382a.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/freescale/fec.h
7b15515fc1ca ("Revert "fec: Restart PPS after link state change"")
40c79ce13b03 ("net: fec: add stop mode support for imx8 platform")
https://lore.kernel.org/all/20220921105337.62b41047@canb.auug.org.au/
drivers/pinctrl/pinctrl-ocelot.c
c297561bc98a ("pinctrl: ocelot: Fix interrupt controller")
181f604b33cd ("pinctrl: ocelot: add ability to be used in a non-mmio configuration")
https://lore.kernel.org/all/20220921110032.7cd28114@canb.auug.org.au/
tools/testing/selftests/drivers/net/bonding/Makefile
bbb774d921e2 ("net: Add tests for bonding and team address list management")
152e8ec77640 ("selftests/bonding: add a test for bonding lladdr target")
https://lore.kernel.org/all/20220921110437.5b7dbd82@canb.auug.org.au/
drivers/net/can/usb/gs_usb.c
5440428b3da6 ("can: gs_usb: gs_can_open(): fix race dev->can.state condition")
45dfa45f52e6 ("can: gs_usb: add RX and TX hardware timestamp support")
https://lore.kernel.org/all/84f45a7d-92b6-4dc5-d7a1-072152fab6ff@tessares.net/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/freescale/fec_ptp.c')
-rw-r--r-- | drivers/net/ethernet/freescale/fec_ptp.c | 57 |
1 files changed, 18 insertions, 39 deletions
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index 7be97ab84e50..cffd9ad499dd 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -365,19 +365,21 @@ static int fec_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta) */ static int fec_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) { - struct fec_enet_private *fep = + struct fec_enet_private *adapter = container_of(ptp, struct fec_enet_private, ptp_caps); u64 ns; unsigned long flags; - spin_lock_irqsave(&fep->tmreg_lock, flags); + mutex_lock(&adapter->ptp_clk_mutex); /* Check the ptp clock */ - if (!fep->ptp_clk_on) { - spin_unlock_irqrestore(&fep->tmreg_lock, flags); + if (!adapter->ptp_clk_on) { + mutex_unlock(&adapter->ptp_clk_mutex); return -EINVAL; } - ns = timecounter_read(&fep->tc); - spin_unlock_irqrestore(&fep->tmreg_lock, flags); + spin_lock_irqsave(&adapter->tmreg_lock, flags); + ns = timecounter_read(&adapter->tc); + spin_unlock_irqrestore(&adapter->tmreg_lock, flags); + mutex_unlock(&adapter->ptp_clk_mutex); *ts = ns_to_timespec64(ns); @@ -402,10 +404,10 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp, unsigned long flags; u32 counter; - spin_lock_irqsave(&fep->tmreg_lock, flags); + mutex_lock(&fep->ptp_clk_mutex); /* Check the ptp clock */ if (!fep->ptp_clk_on) { - spin_unlock_irqrestore(&fep->tmreg_lock, flags); + mutex_unlock(&fep->ptp_clk_mutex); return -EINVAL; } @@ -415,9 +417,11 @@ static int fec_ptp_settime(struct ptp_clock_info *ptp, */ counter = ns & fep->cc.mask; + spin_lock_irqsave(&fep->tmreg_lock, flags); writel(counter, fep->hwp + FEC_ATIME); timecounter_init(&fep->tc, &fep->cc, ns); spin_unlock_irqrestore(&fep->tmreg_lock, flags); + mutex_unlock(&fep->ptp_clk_mutex); return 0; } @@ -514,11 +518,13 @@ static void fec_time_keep(struct work_struct *work) struct fec_enet_private *fep = container_of(dwork, struct fec_enet_private, time_keep); unsigned long flags; - spin_lock_irqsave(&fep->tmreg_lock, flags); + mutex_lock(&fep->ptp_clk_mutex); if (fep->ptp_clk_on) { + spin_lock_irqsave(&fep->tmreg_lock, flags); timecounter_read(&fep->tc); + spin_unlock_irqrestore(&fep->tmreg_lock, flags); } - spin_unlock_irqrestore(&fep->tmreg_lock, flags); + mutex_unlock(&fep->ptp_clk_mutex); schedule_delayed_work(&fep->time_keep, HZ); } @@ -593,6 +599,8 @@ void fec_ptp_init(struct platform_device *pdev, int irq_idx) } fep->ptp_inc = NSEC_PER_SEC / fep->cycle_speed; + spin_lock_init(&fep->tmreg_lock); + fec_ptp_start_cyclecounter(ndev); INIT_DELAYED_WORK(&fep->time_keep, fec_time_keep); @@ -625,36 +633,7 @@ void fec_ptp_stop(struct platform_device *pdev) struct net_device *ndev = platform_get_drvdata(pdev); struct fec_enet_private *fep = netdev_priv(ndev); - if (fep->pps_enable) - fec_ptp_enable_pps(fep, 0); - cancel_delayed_work_sync(&fep->time_keep); if (fep->ptp_clock) ptp_clock_unregister(fep->ptp_clock); } - -void fec_ptp_save_state(struct fec_enet_private *fep) -{ - u32 atime_inc_corr; - - fec_ptp_gettime(&fep->ptp_caps, &fep->ptp_saved_state.ts_phc); - fep->ptp_saved_state.ns_sys = ktime_get_ns(); - - fep->ptp_saved_state.at_corr = readl(fep->hwp + FEC_ATIME_CORR); - atime_inc_corr = readl(fep->hwp + FEC_ATIME_INC) & FEC_T_INC_CORR_MASK; - fep->ptp_saved_state.at_inc_corr = (u8)(atime_inc_corr >> FEC_T_INC_CORR_OFFSET); -} - -int fec_ptp_restore_state(struct fec_enet_private *fep) -{ - u32 atime_inc = readl(fep->hwp + FEC_ATIME_INC) & FEC_T_INC_MASK; - u64 ns_sys; - - writel(fep->ptp_saved_state.at_corr, fep->hwp + FEC_ATIME_CORR); - atime_inc |= ((u32)fep->ptp_saved_state.at_inc_corr) << FEC_T_INC_CORR_OFFSET; - writel(atime_inc, fep->hwp + FEC_ATIME_INC); - - ns_sys = ktime_get_ns() - fep->ptp_saved_state.ns_sys; - timespec64_add_ns(&fep->ptp_saved_state.ts_phc, ns_sys); - return fec_ptp_settime(&fep->ptp_caps, &fep->ptp_saved_state.ts_phc); -} |