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2012-09-22ptp: link the phc device to its parent deviceRichard Cochran3-4/+5
PTP Hardware Clock devices appear as class devices in sysfs. This patch changes the registration API to use the parent device, clarifying the clock's relationship to the underlying device. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-22ptp: provide the clock's adjusted frequencyRichard Cochran1-2/+3
If the timex.mode field indicates a query, then we provide the value of the current frequency adjustment. [ Get rid of extraneous empty lines -DaveM ] Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-22ptp: remember the adjusted frequencyRichard Cochran2-0/+2
This patch adds a field to the representation of a PTP hardware clock in order to remember the frequency adjustment value dialed by the user. Adding this field will let us answer queries in the manner of adjtimex in a follow on patch. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-07pps/ptp: Allow PHC devices to adjust PPS events for known delayBen Hutchings1-0/+5
Initial version by Stuart Hodgson <smhodgson@solarflare.com> Some PHC device drivers may deliver PPS events with a significant and variable delay, but still be able to measure precisely what that delay is. Add a pps_sub_ts() function for subtracting a delay from the timestamp(s) in a PPS event, and a PTP event type (PTP_CLOCK_PPSUSR) for which the caller provides a complete PPS event. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-05-22Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds1-1/+1
Pull trivial updates from Jiri Kosina: "As usual, it's mostly typo fixes, redundant code elimination and some documentation updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits) edac, mips: don't change code that has been removed in edac/mips tree xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer lib: Change mail address of Oskar Schirmer net: Change mail address of Oskar Schirmer arm/m68k: Change mail address of Sebastian Hess i2c: Change mail address of Oskar Schirmer net: Fix tcp_build_and_update_options comment in struct tcp_sock atomic64_32.h: fix parameter naming mismatch Kconfig: replace "--- help ---" with "---help---" c2port: fix bogus Kconfig "default no" edac: Fix spelling errors. qla1280: Remove redundant NULL check before release_firmware() call remoteproc: remove redundant NULL check before release_firmware() qla2xxx: Remove redundant NULL check before release_firmware() call. aic94xx: Get rid of redundant NULL check before release_firmware() call tehuti: delete redundant NULL check before release_firmware() qlogic: get rid of a redundant test for NULL before call to release_firmware() bna: remove redundant NULL test before release_firmware() tg3: remove redundant NULL test before release_firmware() call typhoon: get rid of redundant conditional before all to release_firmware() ...
2012-05-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
2012-05-16ptp_pch: Add missing #include <linux/slab.h>Geert Uytterhoeven1-0/+1
drivers/ptp/ptp_pch.c: In function 'pch_remove': drivers/ptp/ptp_pch.c:576:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] drivers/ptp/ptp_pch.c: In function 'pch_probe': drivers/ptp/ptp_pch.c:587:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21pch_gbe: correct receive time stamp filteringTakahiro Shimizu1-3/+7
This patch fixes the driver so that multicast PTP event messages can be recognized by the hardware time stamping unit. The station address register must be set according to the desired transport type. [ RC - Rebased Takahiro's changes and wrote a commit message explaining the changes. ] Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21pch_gbe: do not set the channel control registerTakahiro Shimizu1-2/+0
We will let the pch_gbe code do that according to the receive time stamp filter. [ RC - Rebased Takahiro's changes and wrote a commit message explaining the changes. ] Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21pch_gbe: export a method to set the receive match addressTakahiro Shimizu1-1/+2
The code in phc_gbe_main will need to call this method in order to set the station address register according to the receive time stamping filter. [ RC - Rebased Takahiro's changes and wrote a commit message explaining the changes. ] Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21pch_gbe: scale time stamps to nanosecondsTakahiro Shimizu1-0/+2
This patch fixes the helper functions that give the transmit and receive time stamps to return nanoseconds, instead of arbitrary clock ticks. [ RC - Rebased Takahiro's changes and wrote a commit message explaining the changes. ] Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-16Fix typo in various Kconfig fileMasanari Iida1-1/+1
Correct spelling typo in various Kconfig file. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-12ixp4xx_eth: Fix up the get_ts_info ethtool method.Richard Cochran1-2/+2
Commit e77bd1ec121ee4163a6b42a44e87b2e382c39e04 added support for a new ethtool function, but that cannot compile due to a misnamed global variable. Not that it really matters (since the IXP4xx does compile either, as of about Linux 3.1) but just in case, this patch fixes the misnamed variable in the PHC driver. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04ixp4xx_eth: Support the get_ts_info ethtool method.Richard Cochran1-0/+3
Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-04ptp: Add a method for obtaining the device index.Richard Cochran1-0/+6
This commit adds a method that MAC drivers may call in order to find out the device number of their associated PTP Hardware Clock. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-17phc: Update author's email address.Richard Cochran2-2/+2
This commit brings the author email address macros up to date for four modules in the PTP Hardware Clock subsystem. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-09ptp_pch: rename pch_pcidev to pci_driver to fix section mismatch warnings.David S. Miller1-3/+3
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-09supports eg20t ptp clockTakahiro Shimizu3-0/+744
Supports EG20T ptp clock in the driver Changes e-mail address. Adds number. Signed-off-by: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06ptp: Fix clock_getres() implementationThomas Gleixner1-1/+3
The clock_getres() function must return the resolution in the timespec argument and return 0 for success. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Cc: stable@kernel.org Cc: Richard Cochran <richard.cochran@omicron.at>
2011-06-01ptp: Fix some locking bugs in ptp_read()Dan Carpenter1-4/+4
In ptp_read there is an unlock missing on an error path, and a double unlock on another error path. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-06-01ptp: Return -EFAULT on copy_to_user() errorsDan Carpenter1-1/+2
copy_to_user() returns the number of bytes remaining, but we want a negative error code in ptp_ioctl. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-23ptp: Added a clock driver for the National Semiconductor PHYTER.Richard Cochran1-0/+19
This patch adds support for the PTP clock found on the DP83640. The basic clock operations and one external time stamp have been implemented. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-23ptp: Added a clock driver for the IXP46x.Richard Cochran3-0/+346
This patch adds a driver for the hardware time stamping unit found on the IXP465. The basic clock operations and an external trigger are implemented. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: John Stultz <john.stultz@linaro.org> Acked-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-23ptp: Added a clock that uses the eTSEC found on the MPC85xx.Richard Cochran1-0/+13
The eTSEC includes a PTP clock with quite a few features. This patch adds support for the basic clock adjustment functions, plus two external time stamps, one alarm, and the PPS callback. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: John Stultz <john.stultz@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
2011-05-23ptp: Added a brand new class driver for ptp clocks.Richard Cochran6-0/+860
This patch adds an infrastructure for hardware clocks that implement IEEE 1588, the Precision Time Protocol (PTP). A class driver offers a registration method to particular hardware clock drivers. Each clock is presented as a standard POSIX clock. The ancillary clock features are exposed in two different ways, via the sysfs and by a character device. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: John Stultz <john.stultz@linaro.org>
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