e8650a0823
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() ...
93 lines
3.0 KiB
Plaintext
93 lines
3.0 KiB
Plaintext
#
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# PTP clock support configuration
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#
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menu "PTP clock support"
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comment "Enable Device Drivers -> PPS to see the PTP clock options."
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depends on PPS=n
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config PTP_1588_CLOCK
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tristate "PTP clock support"
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depends on EXPERIMENTAL
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depends on PPS
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help
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The IEEE 1588 standard defines a method to precisely
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synchronize distributed clocks over Ethernet networks. The
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standard defines a Precision Time Protocol (PTP), which can
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be used to achieve synchronization within a few dozen
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microseconds. In addition, with the help of special hardware
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time stamping units, it can be possible to achieve
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synchronization to within a few hundred nanoseconds.
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This driver adds support for PTP clocks as character
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devices. If you want to use a PTP clock, then you should
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also enable at least one clock driver as well.
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To compile this driver as a module, choose M here: the module
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will be called ptp.
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config PTP_1588_CLOCK_GIANFAR
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tristate "Freescale eTSEC as PTP clock"
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depends on PTP_1588_CLOCK
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depends on GIANFAR
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help
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This driver adds support for using the eTSEC as a PTP
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clock. This clock is only useful if your PTP programs are
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getting hardware time stamps on the PTP Ethernet packets
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using the SO_TIMESTAMPING API.
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To compile this driver as a module, choose M here: the module
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will be called gianfar_ptp.
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config PTP_1588_CLOCK_IXP46X
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tristate "Intel IXP46x as PTP clock"
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depends on PTP_1588_CLOCK
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depends on IXP4XX_ETH
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help
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This driver adds support for using the IXP46X as a PTP
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clock. This clock is only useful if your PTP programs are
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getting hardware time stamps on the PTP Ethernet packets
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using the SO_TIMESTAMPING API.
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To compile this driver as a module, choose M here: the module
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will be called ptp_ixp46x.
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comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
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depends on PTP_1588_CLOCK && (PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n)
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config DP83640_PHY
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tristate "Driver for the National Semiconductor DP83640 PHYTER"
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depends on PTP_1588_CLOCK
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depends on NETWORK_PHY_TIMESTAMPING
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depends on PHYLIB
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---help---
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Supports the DP83640 PHYTER with IEEE 1588 features.
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This driver adds support for using the DP83640 as a PTP
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clock. This clock is only useful if your PTP programs are
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getting hardware time stamps on the PTP Ethernet packets
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using the SO_TIMESTAMPING API.
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In order for this to work, your MAC driver must also
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implement the skb_tx_timestamp() function.
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config PTP_1588_CLOCK_PCH
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tristate "Intel PCH EG20T as PTP clock"
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depends on PTP_1588_CLOCK
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depends on PCH_GBE
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help
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This driver adds support for using the PCH EG20T as a PTP
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clock. The hardware supports time stamping of PTP packets
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when using the end-to-end delay (E2E) mechansim. The peer
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delay mechansim (P2P) is not supported.
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This clock is only useful if your PTP programs are getting
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hardware time stamps on the PTP Ethernet packets using the
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SO_TIMESTAMPING API.
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To compile this driver as a module, choose M here: the module
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will be called ptp_pch.
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endmenu
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