mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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a7f7f6248d
Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.
This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.
There are a variety of indentation styles found.
a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'
In order to convert all of them to 1 tab + 'help', I ran the
following commend:
$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
154 lines
5 KiB
Text
154 lines
5 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# PTP clock support configuration
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#
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menu "PTP clock support"
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config PTP_1588_CLOCK
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tristate "PTP clock support"
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depends on NET && POSIX_TIMERS
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select PPS
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select NET_PTP_CLASSIFY
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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_DTE
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tristate "Broadcom DTE as PTP clock"
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depends on PTP_1588_CLOCK
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depends on NET && HAS_IOMEM
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depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST
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default y
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help
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This driver adds support for using the Digital timing engine
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(DTE) in the Broadcom SoC's as a PTP clock.
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The clock can be used in both wired and wireless networks
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for PTP purposes.
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To compile this driver as a module, choose M here: the module
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will be called ptp_dte.
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config PTP_1588_CLOCK_QORIQ
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tristate "Freescale QorIQ 1588 timer as PTP clock"
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depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST
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depends on PTP_1588_CLOCK
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default y
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help
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This driver adds support for using the Freescale QorIQ 1588
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timer as a PTP clock. This clock is only useful if your PTP
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programs are getting hardware time stamps on the PTP Ethernet
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packets 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-qoriq.
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comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
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depends on 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 NETWORK_PHY_TIMESTAMPING
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depends on PHYLIB
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depends on PTP_1588_CLOCK
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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_INES
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tristate "ZHAW InES PTP time stamping IP core"
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depends on NETWORK_PHY_TIMESTAMPING
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depends on PHYLIB
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depends on PTP_1588_CLOCK
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help
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This driver adds support for using the ZHAW InES 1588 IP
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core. This clock is only useful if the MII bus of your MAC
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is wired up to the core.
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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 X86_32 || COMPILE_TEST
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depends on HAS_IOMEM && NET
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imply PTP_1588_CLOCK
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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) mechanism. The peer
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delay mechanism (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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config PTP_1588_CLOCK_KVM
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tristate "KVM virtual PTP clock"
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depends on PTP_1588_CLOCK
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depends on KVM_GUEST && X86
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default y
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help
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This driver adds support for using kvm infrastructure as a PTP
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clock. This clock is only useful if you are using KVM guests.
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To compile this driver as a module, choose M here: the module
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will be called ptp_kvm.
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config PTP_1588_CLOCK_IDT82P33
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tristate "IDT 82P33xxx PTP clock"
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depends on PTP_1588_CLOCK && I2C
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default n
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help
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This driver adds support for using the IDT 82P33xxx as a PTP
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clock. This clock is only useful if your time stamping MAC
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is connected to the IDT chip.
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To compile this driver as a module, choose M here: the module
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will be called ptp_idt82p33.
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config PTP_1588_CLOCK_IDTCM
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tristate "IDT CLOCKMATRIX as PTP clock"
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depends on PTP_1588_CLOCK && I2C
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default n
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help
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This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP
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clock. This clock is only useful if your time stamping MAC
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is connected to the IDT chip.
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To compile this driver as a module, choose M here: the module
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will be called ptp_clockmatrix.
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config PTP_1588_CLOCK_VMW
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tristate "VMware virtual PTP clock"
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depends on ACPI && HYPERVISOR_GUEST && X86
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depends on PTP_1588_CLOCK
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help
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This driver adds support for using VMware virtual precision
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clock device as a PTP clock. This is only useful in virtual
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machines running on VMware virtual infrastructure.
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To compile this driver as a module, choose M here: the module
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will be called ptp_vmw.
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endmenu
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