Serge Semin ddcc2733c1 spi: dw: Refactor IRQ-based SPI transfer procedure ... Current IRQ-based SPI transfer execution procedure doesn't work well at the final stage of the execution. If all the Tx data is sent out (written to the Tx FIFO) but there is some data left to receive, the Tx FIFO Empty IRQ will constantly happen until all of the requested inbound data is received. Though for a short period of time, but it will make the system less responsive. In order to fix that let's refactor the SPI transfer execution procedure by taking the Rx FIFO Full IRQ into account. We'll read and write SPI transfer data each time the IRQ happens as before. If all the outbound data is sent out, we'll disable the Tx FIFO Empty IRQ. If there is still some data to receive, we'll adjust the Rx FIFO Threshold level, so the next IRQ would be raised at the moment of all incoming data being available in the Rx FIFO. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20201007235511.4935-10-Sergey.Semin@baikalelectronics.ru Signed-off-by: Mark Brown <broonie@kernel.org>		2020-10-08 23:00:12 +01:00
..
atmel-quadspi.c	spi: atmel-quadspi: Use optimezed memcpy_fromio()/memcpy_toio()	2020-07-17 00:55:24 +01:00
internals.h
Kconfig	spi: qup: Allow for compile-testing on !ARM	2020-09-07 19:04:23 +01:00
Makefile	Merge series "mtd: spi-nor: Move cadence-qaudspi to spi-mem framework" from Vignesh Raghavendra <vigneshr@ti.com>:	2020-06-19 14:26:55 +01:00
spi-altera.c	spi: altera: fix module autoload	2020-06-24 16:37:47 +01:00
spi-amd.c	spi: spi-amd: Do not define 'struct acpi_device_id' when !CONFIG_ACPI	2020-07-17 16:38:56 +01:00
spi-ar934x.c	spi: add driver for ar934x spi controller	2020-02-11 11:37:30 +00:00
spi-armada-3700.c	spi: a3700: Remove a useless memset	2020-08-18 17:52:37 +01:00
spi-at91-usart.c	spi: spi-at91-usart: Remove unused OF table 'struct of_device_id'	2020-07-17 16:38:54 +01:00
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: Exposing effective spi speed	2020-10-01 23:45:26 +01:00
spi-au1550.c
spi-axi-spi-engine.c	spi: spi-axi-spi-engine: Access register after clock initialization	2020-04-09 18:46:53 +01:00
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: add reset support	2020-06-17 14:29:58 +01:00
spi-bcm63xx.c	spi: bcm63xx-spi: add reset support	2020-06-17 14:29:58 +01:00
spi-bcm2835.c	spi: bcm2835: Make polling_limit_us static	2020-09-14 15:50:15 +01:00
spi-bcm2835aux.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
spi-bcm-qspi.c	spi: bcm-qspi: Clean up 7425, 7429, and 7435 settings	2020-09-14 15:50:08 +01:00
spi-bcm-qspi.h
spi-bitbang-txrx.h
spi-bitbang.c	spi: spi-bitbang: Demote obvious misuse of kerneldoc to standard comment blocks	2020-07-17 16:38:45 +01:00
spi-brcmstb-qspi.c
spi-butterfly.c
spi-cadence-quadspi.c	spi: cadence-quadspi: Simplify with dev_err_probe()	2020-09-08 18:19:26 +01:00
spi-cadence.c	spi: spi-cadence: add support for chip select high	2020-07-22 01:55:51 +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	spi: spi-cavium-thunderx: flag controller as half duplex	2020-06-16 00:38:39 +01:00
spi-cavium.c	spi: use new spi_transfer_delay_exec helper where straightforward	2019-10-15 11:51:57 +01:00
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 clk_prepare_enable and clk_disable_unprepare	2020-07-17 00:55:26 +01:00
spi-davinci.c	Remove uninitialized_var() macro for v5.9-rc1	2020-08-04 13:49:43 -07:00
spi-dln2.c
spi-dw-core.c	spi: dw: Refactor IRQ-based SPI transfer procedure	2020-10-08 23:00:12 +01:00
spi-dw-dma.c	spi: dw-dma: Add one-by-one SG list entries transfer	2020-09-29 16:37:15 +01:00
spi-dw-mmio.c	spi: dw: Add DWC SSI capability	2020-10-08 23:00:06 +01:00
spi-dw-pci.c	spi: dw: Add DWC SSI capability	2020-10-08 23:00:06 +01:00
spi-dw.h	spi: dw: Refactor data IO procedure	2020-10-08 23:00:11 +01:00
spi-efm32.c	spi: efm32: Convert to use GPIO descriptors	2020-03-27 15:52:23 +00:00
spi-ep93xx.c	spi: spi-ep93xx: Fix API slippage	2020-07-17 16:38:47 +01:00
spi-falcon.c	spi: spi-falcon: extend warning to delay as well	2019-10-15 11:46:57 +01:00
spi-fsi.c	spi: fsi: Check mux status before transfers	2020-09-17 19:31:43 +01:00
spi-fsl-cpm.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
spi-fsl-cpm.h
spi-fsl-dspi.c	spi: spi-fsl-dspi: use XSPI mode instead of DMA for DPAA2 SoCs	2020-09-14 15:50:14 +01:00
spi-fsl-espi.c	spi: spi-fsl-espi: Remove use of %p	2020-08-25 22:46:50 +01:00
spi-fsl-lib.c
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: lpspi: Remove CONFIG_PM_SLEEP ifdefery	2020-08-18 17:52:36 +01:00
spi-fsl-qspi.c	spi: Fix SPI NOR and SPI NAND acronyms	2020-07-17 00:55:25 +01:00
spi-fsl-spi.c	spi: fsl: add missing __iomem annotation	2020-07-01 23:21:26 +01:00
spi-fsl-spi.h
spi-geni-qcom.c	spi: spi-geni-qcom: Don't wait to start 1st transfer if transmitting	2020-09-14 15:50:16 +01:00
spi-gpio.c	Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.5	2019-10-08 19:12:28 +01:00
spi-hisi-sfc-v3xx.c	spi: hisi-sfc-v3xx: fix spelling mistake "occured" -> "occurred"	2020-09-28 20:33:56 +01:00
spi-img-spfi.c	spi: img-spfi: Convert to use GPIO descriptors	2020-07-01 23:21:29 +01:00
spi-imx.c	spi: spi-imx: spi_imx_transfer(): add support for effective_speed_hz	2020-09-23 19:59:32 +01:00
spi-iproc-qspi.c
spi-jcore.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
spi-lantiq-ssc.c	spi: lantiq: remove redundant irqsave and irqrestore in hardIRQ	2020-09-17 19:56:02 +01:00
spi-lm70llp.c
spi-loopback-test.c	spi: spi-loopback-test: Fix formatting issues in function header blocks	2020-07-17 16:38:44 +01:00
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: spi-mem: allow specifying a command's extension	2020-07-14 17:29:38 +01:00
spi-meson-spicc.c	spi: spi-meson-spicc: Remove set but never used variable 'data' from meson_spicc_reset_fifo()	2020-07-17 16:38:48 +01:00
spi-meson-spifc.c	spi: spi-meson-spifc: Fix misdocumenting of 'dev' in 'struct meson_spifc'	2020-07-17 16:38:48 +01:00
spi-mpc52xx-psc.c	spi: use new spi_transfer_delay_exec helper where straightforward	2019-10-15 11:51:57 +01:00
spi-mpc52xx.c
spi-mpc512x-psc.c	spi: use new spi_transfer_delay_exec helper where straightforward	2019-10-15 11:51:57 +01:00
spi-mt65xx.c	spi: mediatek: add spi support for mt8192 IC	2020-07-22 01:56:00 +01:00
spi-mt7621.c	spi: mt7621: use devm_platform_ioremap_resource() to simplify code	2019-09-04 17:19:34 +01:00
spi-mtk-nor.c	spi: spi-mtk-nor: Add power management support	2020-10-06 15:53:47 +01:00
spi-mux.c	spi: spi-mux: Simplify with dev_err_probe()	2020-09-08 18:19:27 +01:00
spi-mxic.c	spi: spi-mem: allow specifying a command's extension	2020-07-14 17:29:38 +01:00
spi-mxs.c	spi: mxs: Drop GPIO includes	2020-03-17 13:20:16 +00:00
spi-npcm-fiu.c	spi: npcm-fiu: simplify the return expression of npcm_fiu_probe()	2020-09-22 01:04:19 +01:00
spi-npcm-pspi.c	spi: npcm-pspi: Convert to use GPIO descriptors	2020-07-01 23:21:28 +01:00
spi-nxp-fspi.c	spi: spi-nxp-fspi: Add ACPI support	2020-09-17 19:56:03 +01:00
spi-oc-tiny.c	SPI SUBSYSTEM: Replace HTTP links with HTTPS ones	2020-07-09 22:41:11 +01:00
spi-omap2-mcspi.c	spi: omap2-mcspi: Improve performance waiting for CHSTAT	2020-09-22 01:04:20 +01:00
spi-omap-100k.c	spi: omap-100k: Drop include	2020-07-14 17:38:46 +01:00
spi-omap-uwire.c	spi: omap-uwire: Use clk_prepare_enable and clk_disable_unprepare	2020-07-15 15:58:33 +01:00
spi-orion.c	spi: Fix SPI NOR and SPI NAND acronyms	2020-07-17 00:55:25 +01:00
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: pic32: Retire dma_request_slave_channel_compat()	2019-11-22 19:53:41 +00:00
spi-pl022.c	spi: spi-pl022: Provide missing struct attribute/function param docs	2020-07-17 16:38:50 +01:00
spi-ppc4xx.c	spi: ppc4xx: Convert to use GPIO descriptors	2020-07-22 01:55:52 +01:00
spi-pxa2xx-dma.c
spi-pxa2xx-pci.c
spi-pxa2xx.c	spi: spi-pxa2xx: Do not define 'struct acpi_device_id' when !CONFIG_ACPI	2020-07-17 16:38:55 +01:00
spi-pxa2xx.h
spi-qcom-qspi.c	spi: spi-qcom-qspi: replace spin_lock_irqsave by spin_lock in hard IRQ	2020-09-14 15:50:10 +01:00
spi-qup.c	spi: qup: remove redundant assignment to variable ret	2020-09-14 15:50:04 +01:00
spi-rb4xx.c	spi: rb4xx: update driver to be device tree aware	2020-05-22 14:13:17 +01:00
spi-rockchip.c	spi: rockchip: Fix error in SPI slave pio read	2020-07-28 17:29:31 +01:00
spi-rpc-if.c	spi: add Renesas RPC-IF driver	2020-06-16 00:38:38 +01:00
spi-rspi.c	spi: rspi: Fill in controller speed limits	2020-08-20 22:38:17 +01:00
spi-s3c24xx-fiq.h
spi-s3c24xx-fiq.S
spi-s3c24xx.c	spi: s3c24xx: correct kerneldoc comment	2020-08-18 17:52:39 +01:00
spi-s3c64xx.c	spi: spi-s3c64xx: Turn on interrupts upon resume	2020-10-02 21:54:24 +01:00
spi-sc18is602.c	spi: sc18is602: Fix a typo in MODULE_DESCRIPTION	2020-04-14 12:39:37 +01:00
spi-sh-hspi.c	spi: use new spi_transfer_delay_exec helper where straightforward	2019-10-15 11:51:57 +01:00
spi-sh-msiof.c	spi: spi-sh-msiof: Fix checkpatch error Complex macros should use ()	2020-04-14 18:36:34 +01:00
spi-sh-sci.c
spi-sh.c
spi-sifive.c	spi: sifive: disable clk when probe fails and remove	2019-11-04 13:26:11 +00:00
spi-sirf.c	spi: sirf: Use dma_request_chan() instead dma_request_slave_channel()	2019-12-16 11:57:36 +00:00
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-time.c
spi-sprd-adi.c	spi: sprd: Simplify with dev_err_probe()	2020-09-14 15:50:17 +01:00
spi-sprd.c	spi: sprd: Simplify with dev_err_probe()	2020-09-14 15:50:17 +01:00
spi-st-ssc4.c	spi: st-ssc4: add missed pm_runtime_disable	2019-11-18 12:59:11 +00:00
spi-stm32-qspi.c	spi: stm32-qspi: Fix error path in case of -EPROBE_DEFER	2020-06-17 13:26:41 +01:00
spi-stm32.c	spi: spi-stm32: remove redundant irqsave and irqrestore in hardIRQ	2020-10-01 23:45:28 +01:00
spi-sun4i.c	spi: sun4i: update max transfer size reported	2020-07-27 14:55:21 +01:00
spi-sun6i.c	spi: spi-sun6i: sun6i_spi_transfer_one(): enable RF_RDY interrupt only if needed	2020-07-07 10:41:41 +01:00
spi-synquacer.c	spi: synquacer: Simplify with dev_err_probe()	2020-09-08 18:19:29 +01:00
spi-tegra20-sflash.c	spi: spi-tegra20-sflash: remove redundant irqsave and irqrestore in hardIRQ	2020-10-01 23:45:27 +01:00
spi-tegra20-slink.c	spi: tegra20: Simplify with dev_err_probe()	2020-09-08 18:19:31 +01:00
spi-tegra114.c	spi: tegra114: Simplify with dev_err_probe()	2020-09-08 18:19:30 +01:00
spi-test.h
spi-ti-qspi.c	SPI SUBSYSTEM: Replace HTTP links with HTTPS ones	2020-07-09 22:41:11 +01:00
spi-tle62x0.c
spi-topcliff-pch.c	spi/topcliff-pch: drop double zeroing	2020-09-21 17:56:38 +01:00
spi-txx9.c	spi: txx9: Convert to use GPIO descriptors	2019-10-30 14:14:32 +00:00
spi-uniphier.c	spi: uniphier: Use devm_platform_get_and_ioremap_resource() to simplify code	2020-05-11 18:17:52 +01:00
spi-xcomm.c	spi: use new spi_transfer_delay_exec helper where straightforward	2019-10-15 11:51:57 +01:00
spi-xilinx.c	spi: xilinx: Fix info message during probe	2020-09-17 19:56:01 +01:00
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: spi-zynq-qspi: Add description for 2 missing attributes/parameters	2020-07-17 16:38:51 +01:00
spi-zynqmp-gqspi.c	spi: spi-zynqmp-gqspi: Fix incorrect indentation	2020-09-24 12:59:29 +01:00
spi.c	spi: Fixes for v5.9	2020-08-18 14:27:12 -07:00
spidev.c	spi: spidev: Remove redundant initialization of variable status	2020-09-09 16:27:46 +01:00