linux.git/drivers/ptp, branch v5.5-rc2

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2019-11-17T05:51:42+00:00

Lots of overlapping changes and parallel additions, stuff
like that.

Signed-off-by: David S. Miller

ptp: Introduce strict checking of external time stamp options.

2019-11-15T20:48:32+00:00

User space may request time stamps on rising edges, falling edges, or
both.  However, the particular mode may or may not be supported in the
hardware or in the driver.  This patch adds a "strict" flag that tells
drivers to ensure that the requested mode will be honored.

Signed-off-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: Validate requests to enable time stamping of external signals.

2019-11-15T20:48:32+00:00

Commit 415606588c61 ("PTP: introduce new versions of IOCTLs")
introduced a new external time stamp ioctl that validates the flags.
This patch extends the validation to ensure that at least one rising
or falling edge flag is set when enabling external time stamps.

Signed-off-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Fix build error

2019-11-12T20:12:39+00:00

When do randbuilding, we got this warning:

WARNING: unmet direct dependencies detected for PTP_1588_CLOCK
  Depends on [n]: NET [=y] && POSIX_TIMERS [=n]
  Selected by [y]:
  - PTP_1588_CLOCK_IDTCM [=y]

Make PTP_1588_CLOCK_IDTCM depends on PTP_1588_CLOCK to fix this.

Fixes: 3a6ba7dc7799 ("ptp: Add a ptp clock driver for IDT ClockMatrix.")
Signed-off-by: YueHaibing 
Reviewed-by: Vincent Cheng  
Signed-off-by: David S. Miller

ptp: ptp_clockmatrix: Fix missing unlock on error in idtcm_probe()

2019-11-07T05:19:59+00:00

Add the missing unlock before return from function idtcm_probe()
in the error handling case.

Fixes: 3a6ba7dc7799 ("ptp: Add a ptp clock driver for IDT ClockMatrix.")
Signed-off-by: Wei Yongjun 
Reviewed-by: Vincent Cheng 
Signed-off-by: David S. Miller

ptp: Add a ptp clock driver for IDT ClockMatrix.

2019-11-04T01:35:40+00:00

The IDT ClockMatrix (TM) family includes integrated devices that provide
eight PLL channels.  Each PLL channel can be independently configured as a
frequency synthesizer, jitter attenuator, digitally controlled
oscillator (DCO), or a digital phase lock loop (DPLL).  Typically
these devices are used as timing references and clock sources for PTP
applications.  This patch adds support for the device.

Co-developed-by: Richard Cochran 
Signed-off-by: Richard Cochran 
Signed-off-by: Vincent Cheng 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2019-10-20T17:43:00+00:00

Several cases of overlapping changes which were for the most
part trivially resolvable.

Signed-off-by: David S. Miller

ptp: ptp_dte: use devm_platform_ioremap_resource() to simplify code

2019-10-10T23:21:13+00:00

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Signed-off-by: YueHaibing 
Signed-off-by: Jakub Kicinski

ptp: fix typo of "mechanism" in Kconfig help text

2019-10-07T18:55:46+00:00

Fix typo s/mechansim/mechanism/

Signed-off-by: Antonio Borneo 
Signed-off-by: David S. Miller

ptp_qoriq: Initialize the registers' spinlock before calling ptp_qoriq_settime

2019-10-02T16:20:38+00:00

Because ptp_qoriq_settime is being called prior to spin_lock_init, the
following stack trace can be seen at driver probe time:

[    2.269117] the code is fine but needs lockdep annotation.
[    2.274569] turning off the locking correctness validator.
[    2.280027] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc7-01478-g01eaa67a4797 #263
[    2.288073] Hardware name: Freescale LS1021A
[    2.292337] [] (unwind_backtrace) from [] (show_stack+0x10/0x14)
[    2.300045] [] (show_stack) from [] (dump_stack+0xcc/0xf8)
[    2.307235] [] (dump_stack) from [] (register_lock_class+0x730/0x73c)
[    2.315372] [] (register_lock_class) from [] (__lock_acquire+0x78/0x270c)
[    2.323856] [] (__lock_acquire) from [] (lock_acquire+0xe0/0x22c)
[    2.331649] [] (lock_acquire) from [] (_raw_spin_lock_irqsave+0x54/0x68)
[    2.340048] [] (_raw_spin_lock_irqsave) from [] (ptp_qoriq_settime+0x38/0x80)
[    2.348878] [] (ptp_qoriq_settime) from [] (ptp_qoriq_init+0x1f8/0x484)
[    2.357189] [] (ptp_qoriq_init) from [] (ptp_qoriq_probe+0xd0/0x184)
[    2.365243] [] (ptp_qoriq_probe) from [] (platform_drv_probe+0x48/0x9c)
[    2.373555] [] (platform_drv_probe) from [] (really_probe+0x1c4/0x400)
[    2.381779] [] (really_probe) from [] (driver_probe_device+0x78/0x1b8)
[    2.390003] [] (driver_probe_device) from [] (device_driver_attach+0x58/0x60)
[    2.398832] [] (device_driver_attach) from [] (__driver_attach+0xfc/0x160)
[    2.407402] [] (__driver_attach) from [] (bus_for_each_dev+0x68/0xb4)
[    2.415539] [] (bus_for_each_dev) from [] (bus_add_driver+0x104/0x20c)
[    2.423763] [] (bus_add_driver) from [] (driver_register+0x78/0x10c)
[    2.431815] [] (driver_register) from [] (do_one_initcall+0x8c/0x3ac)
[    2.439954] [] (do_one_initcall) from [] (kernel_init_freeable+0x468/0x548)
[    2.448610] [] (kernel_init_freeable) from [] (kernel_init+0x8/0x10c)
[    2.456745] [] (kernel_init) from [] (ret_from_fork+0x14/0x20)
[    2.464273] Exception stack(0xea89ffb0 to 0xea89fff8)
[    2.469297] ffa0:                                     00000000 00000000 00000000 00000000
[    2.477432] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.485566] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000

Fixes: ff54571a747b ("ptp_qoriq: convert to use ptp_qoriq_init/free")
Signed-off-by: Vladimir Oltean 
Signed-off-by: David S. Miller