kernel/linux.git/drivers/ptp/Kconfig, branch linux-5.9.y

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21+00:00

Since commit 84af7a6194e4 ("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

ptp: add VMware virtual PTP clock driver

2020-03-06T01:25:07+00:00

Add a PTP clock driver called ptp_vmw, for guests running on VMware ESXi hypervisor. The driver attaches to a VMware virtual device called "precision clock" that provides a mechanism for querying host system time. Similar to existing virtual PTP clock drivers (e.g. ptp_kvm), ptp_vmw utilizes the kernel's PTP hardware clock API to implement a clock device that can be used as a reference in Chrony for synchronizing guest time with host. The driver is only applicable to x86 guests running in VMware virtual machines with precision clock virtual device present. It uses a VMware specific hypercall mechanism to read time from the device. Reviewed-by: Thomas Hellstrom Signed-off-by: Vivek Thampi Signed-off-by: David S. Miller

ptp: Add a ptp clock driver for IDT 82P33 SMU.

2020-02-24T21:08:46+00:00

The IDT 82P33 Synchronization Management Unit (SMU) family provides tools to manage timing references, clock sources and timing paths for IEEE 1588 / Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) based clocks. The device supports up to three independent timing paths that control: PTP clock synthesis; SyncE clock generation; and general purpose frequency translation. The device supports physical layer timing with Digital PLLs (DPLLs) and it supports packet based timing with Digitally Controlled Oscillators (DCOs). This patch adds support for ptp clock based on the device. Changes since v1: - As suggested by Richard Cochran: 1. Replace _mask_bit_count with the existing hweight8 2. Prefix all functions with idt82p33 3. Fix white space issues in Kconfig and Makefile 4. Remove forward declaration 5. Use adjfine instead of adjfreq for better resolution - As suggested by David Miller: 1. Replace CHAN_INIT macro with a static function idt82p33_channel_init 2. Employ reverse christmas tree ordering for local variables 3. Fix indentation problem by appropriate number of TAB then SPACE character Signed-off-by: Min Li Signed-off-by: David S. Miller

ptp: ixp46x: move adjacent to ethernet driver

2020-01-12T20:59:52+00:00

The ixp46x ptp driver has a somewhat unusual setup, where the ptp driver and the ethernet driver are in different directories but access the same registers that are defined a platform specific header file. Moving everything into drivers/net/ makes it look more like most other ptp drivers and allows compile-testing this driver on other targets. Signed-off-by: Arnd Bergmann Signed-off-by: Linus Walleij Signed-off-by: Jakub Kicinski

ptp: Add a driver for InES time stamping IP core.

2019-12-26T03:51:34+00:00

The InES at the ZHAW offers a PTP time stamping IP core. The FPGA logic recognizes and time stamps PTP frames on the MII bus. This patch adds a driver for the core along with a device tree binding to allow hooking the driver to MII buses. Signed-off-by: Richard Cochran Signed-off-by: David S. Miller

ptp: clockmatrix: add I2C dependency

2019-12-13T23:42:09+00:00

Without I2C, we get a link failure: drivers/ptp/ptp_clockmatrix.o: In function `idtcm_xfer.isra.3': ptp_clockmatrix.c:(.text+0xcc): undefined reference to `i2c_transfer' drivers/ptp/ptp_clockmatrix.o: In function `idtcm_driver_init': ptp_clockmatrix.c:(.init.text+0x14): undefined reference to `i2c_register_driver' drivers/ptp/ptp_clockmatrix.o: In function `idtcm_driver_exit': ptp_clockmatrix.c:(.exit.text+0x10): undefined reference to `i2c_del_driver' Fixes: 3a6ba7dc7799 ("ptp: Add a ptp clock driver for IDT ClockMatrix.") Signed-off-by: Arnd Bergmann Reviewed-by: Vincent Cheng Signed-off-by: Jakub Kicinski

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: 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

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: add QorIQ PTP support for DPAA2

2019-06-15T20:43:06+00:00

This patch is to add QorIQ PTP support for DPAA2. Although dpaa2-ptp.c driver is a fsl_mc_driver which is using MC APIs for register accessing, it's same IP block with eTSEC/DPAA/ENETC 1588 timer. We will convert to reuse ptp_qoriq driver by using register ioremap and dropping related MC APIs. Also allow to compile ptp_qoriq with COMPILE_TEST. Signed-off-by: Yangbo Lu Signed-off-by: David S. Miller