Vladimir Oltean d6b71dfaee spi: spi-fsl-dspi: Implement the PTP system timestamping for TCFQ mode ... In this mode, the DSPI controller uses PIO to transfer word by word. In comparison, in EOQ mode the 4-word deep FIFO is being used, hence the current logic will need some adaptation for which I do not have the hardware (Coldfire) to test. It is not clear what is the timing of DMA transfers and whether timestamping in the driver brings any overall performance increase compared to regular timestamping done in the core. Short phc2sys summary after 58 minutes of running on LS1021A-TSN with interrupts disabled during the critical section: offset: min -26251 max 16416 mean -21.8672 std dev 863.416 delay: min 4720 max 57280 mean 5182.49 std dev 1607.19 lost servo lock 3 times Summary of the same phc2sys service running for 120 minutes with interrupts disabled: offset: min -378 max 381 mean -0.0083089 std dev 101.495 delay: min 4720 max 5920 mean 5129.38 std dev 154.899 lost servo lock 0 times The minimum delay (pre to post time) in nanoseconds is the same, but the maximum delay is quite a bit higher, due to interrupts getting sometimes executed and interfering with the measurement. Hence set disable_irqs whenever possible (aka when the driver runs in poll mode - otherwise it would be a contradiction in terms). Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20190905010114.26718-4-olteanv@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>		2019-10-07 19:45:45 +01:00
..
atmel-quadspi.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
internals.h	spi: Add an helper to flush the message queue	2018-04-23 15:48:18 +01:00
Kconfig	It's a somewhat calmer cycle for docs this time, as the churn of the mass	2019-09-17 16:22:26 -07:00
Makefile	ARM: SoC driver updates for v5.4	2019-09-16 15:52:38 -07:00
spi-altera.c	spi: altera: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:14:50 +01:00
spi-armada-3700.c	spi: a3700: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:15:09 +01:00
spi-at91-usart.c	spi: at91-usart: add DMA support	2019-05-08 17:45:26 +09:00
spi-ath79.c	spi: ath79: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:15:29 +01:00
spi-atmel.c	spi: atmel: Remove AVR32 leftover	2019-10-01 12:33:39 +01:00
spi-au1550.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-axi-spi-engine.c	spi: spi-axi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:15:49 +01:00
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:16:47 +01:00
spi-bcm63xx.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-bcm2835.c	Merge branch 'spi-5.4' into spi-next	2019-09-15 10:32:06 +01:00
spi-bcm2835aux.c	spi: bcm2835aux: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:16:08 +01:00
spi-bcm-qspi.c	Merge branch 'spi-5.3' into spi-linus	2019-09-15 10:32:04 +01:00
spi-bcm-qspi.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 459	2019-06-19 17:09:09 +02:00
spi-bitbang-txrx.h
spi-bitbang.c	Linux 5.2-rc4	2019-06-10 18:52:53 +01:00
spi-brcmstb-qspi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 459	2019-06-19 17:09:09 +02:00
spi-butterfly.c	spi: docs: convert to ReST and add it to the kABI bookset	2019-07-31 14:13:13 -06:00
spi-cadence.c	spi: cadence: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:17:07 +01:00
spi-cavium-octeon.c	spi: octeon: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:17:27 +01:00
spi-cavium-thunderx.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
spi-cavium.c
spi-cavium.h
spi-clps711x.c	spi: clps711x: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:17:36 +01:00
spi-coldfire-qspi.c	spi: coldfire-qspi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:17:56 +01:00
spi-davinci.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-dln2.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372	2019-06-05 17:37:10 +02:00
spi-dw-mid.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
spi-dw-mmio.c	spi: dw: Add compatible string for Renesas RZ/N1 SPI Controller	2019-10-01 12:33:19 +01:00
spi-dw-pci.c	SPI: designware: pci: Switch over to MSI interrupts	2019-10-01 18:40:38 +01:00
spi-dw.c	spi: dw: Add basic runtime PM support	2019-10-01 12:32:56 +01:00
spi-dw.h	dw: spi: add support for Amazon's Alpine spi controller	2018-10-11 15:11:04 +01:00
spi-efm32.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-ep93xx.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-falcon.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-fsl-cpm.c	spi: fsl-spi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:24:26 +01:00
spi-fsl-cpm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-fsl-dspi.c	spi: spi-fsl-dspi: Implement the PTP system timestamping for TCFQ mode	2019-10-07 19:45:45 +01:00
spi-fsl-espi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-fsl-lib.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-fsl-lib.h	spi: fsl: Convert to use CS GPIO descriptors	2019-08-28 14:10:41 +01:00
spi-fsl-lpspi.c	spi: fsl-lpspi: clean up indentation issue	2019-10-01 12:36:02 +01:00
spi-fsl-qspi.c	spi: spi-fsl-qspi: Introduce variable to fix different invalid master Id	2019-10-01 18:40:17 +01:00
spi-fsl-spi.c	spi: fsl: Convert to use CS GPIO descriptors	2019-08-28 14:10:41 +01:00
spi-fsl-spi.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-geni-qcom.c	spi: spi-geni-qcom: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:18:25 +01:00
spi-gpio.c	spi: gpio: Look for a device node instead of match	2019-10-07 13:55:40 +01:00
spi-img-spfi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422	2019-06-05 17:37:15 +02:00
spi-imx.c	Merge branch 'spi-5.1' into spi-5.2 for stm32	2019-03-15 17:06:34 +00:00
spi-iproc-qspi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
spi-jcore.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
spi-lantiq-ssc.c	spi: lantiq-ssc: Use devm_platform_ioremap_resource() in lantiq_ssc_probe()	2019-10-01 12:34:18 +01:00
spi-lm70llp.c	spi: docs: convert to ReST and add it to the kABI bookset	2019-07-31 14:13:13 -06:00
spi-loopback-test.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-lp8841-rtc.c	spi: lp-8841: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:18:35 +01:00
spi-mem.c	spi-mem: fix kernel-doc for spi_mem_dirmap_{read|write}()	2019-04-08 14:06:51 +07:00
spi-meson-spicc.c	spi: meson-spicc: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:18:55 +01:00
spi-meson-spifc.c	spi: spi-meson-spifc: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:19:14 +01:00
spi-mpc52xx-psc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-mpc52xx.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428	2019-06-05 17:37:16 +02:00
spi-mpc512x-psc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
spi-mt65xx.c	spi: mediatek: Use devm_platform_ioremap_resource() in mtk_spi_probe()	2019-10-01 12:34:38 +01:00
spi-mt7621.c	spi: mt7621: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:19:34 +01:00
spi-mxic.c	spi: mxic: Ensure width is respected in spi-mem operations	2019-10-01 12:33:58 +01:00
spi-mxs.c	spi: mxs: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:19:54 +01:00
spi-npcm-fiu.c	spi: npcm-fiu: remove set but not used variable 'retlen'	2019-09-05 18:19:45 +01:00
spi-npcm-pspi.c	spi: npcm: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:20:03 +01:00
spi-nxp-fspi.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-oc-tiny.c	spi: oc-tiny: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:20:33 +01:00
spi-omap2-mcspi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-omap-100k.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-omap-uwire.c
spi-orion.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-pic32-sqi.c	spi: pic32-sqi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:20:52 +01:00
spi-pic32.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-pl022.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-ppc4xx.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-pxa2xx-dma.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-pxa2xx-pci.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
spi-pxa2xx.c	spi: pxa2xx: Add support for Intel Tiger Lake	2019-08-02 12:14:23 +01:00
spi-pxa2xx.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-qcom-qspi.c	spi: spi-qcom-qspi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:21:12 +01:00
spi-qup.c	Merge branch 'spi-5.3' into spi-next	2019-07-04 17:35:07 +01:00
spi-rb4xx.c	spi: rb4xx: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:21:21 +01:00
spi-rockchip.c	Linux 5.2-rc4	2019-06-10 18:52:53 +01:00
spi-rspi.c	spi: rspi: Fix handling of QSPI code when transmit and receive	2019-05-02 10:38:44 +09:00
spi-s3c24xx-fiq.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-s3c24xx-fiq.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-s3c24xx.c	spi: s3c24xx: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:21:31 +01:00
spi-s3c64xx.c	spi: spi-s3c64xx: Fix system resume support	2018-05-17 13:27:08 +09:00
spi-sc18is602.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-sh-hspi.c	spi: sh-hspi: Replace spi_master by spi_controller	2019-02-08 13:04:19 +00:00
spi-sh-msiof.c	spi: sh-msiof: Use devm_platform_ioremap_resource() helper	2019-08-07 14:24:47 +01:00
spi-sh-sci.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-sh.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-sifive.c	spi: sifive: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:21:41 +01:00
spi-sirf.c	spi: sirf: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:22:00 +01:00
spi-slave-mt27xx.c	spi: mediatek: Use devm_platform_ioremap_resource() in mtk_spi_slave_probe()	2019-10-01 12:34:58 +01:00
spi-slave-system-control.c	spi: slave: Fix missing break in switch	2018-10-03 16:23:10 +01:00
spi-slave-time.c
spi-sprd-adi.c	spi: sprd: adi: Change hwlock to be optional	2019-07-26 12:24:47 +01:00
spi-sprd.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-st-ssc4.c	spi: st-ssc4: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:22:10 +01:00
spi-stm32-qspi.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-stm32.c	spi: stm32: return the get_irq error	2019-05-02 10:38:41 +09:00
spi-sun4i.c	spi: sun4i: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:22:29 +01:00
spi-sun6i.c	spi: sun6i: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:22:49 +01:00
spi-synquacer.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-tegra20-sflash.c	spi: tegra: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:22:58 +01:00
spi-tegra20-slink.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
spi-tegra114.c	Linux 5.2-rc4	2019-06-10 18:52:53 +01:00
spi-test.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
spi-ti-qspi.c	spi: Remove dev_err() usage after platform_get_irq()	2019-08-02 12:15:43 +01:00
spi-tle62x0.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-topcliff-pch.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285	2019-06-05 17:36:37 +02:00
spi-txx9.c
spi-uniphier.c	Merge branch 'spi-5.4' into spi-next	2019-09-15 10:32:06 +01:00
spi-xcomm.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149	2019-05-30 11:25:18 -07:00
spi-xilinx.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
spi-xlp.c	spi: xlp: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:23:28 +01:00
spi-xtensa-xtfpga.c	spi: xtensa-xtfpga: Use devm_platform_ioremap_resource() in xtfpga_spi_probe()	2019-10-01 12:35:18 +01:00
spi-zynq-qspi.c	spi: zynq-qspi: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:24:07 +01:00
spi-zynqmp-gqspi.c	spi: zynqmp: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:23:48 +01:00
spi.c	spi: Add a PTP system timestamp to the transfer structure	2019-10-07 19:45:23 +01:00
spidev.c	Linux 5.2-rc4	2019-06-10 18:52:53 +01:00