Vladimir Oltean b4e46c9954 spi: sc18is602: implement .max_{transfer,message}_size() for the controller ... Allow SPI peripherals attached to this controller to know what is the maximum transfer size and message size, so they can limit their transfer lengths properly in case they are otherwise capable of larger transfer sizes. For the sc18is602, this is 200 bytes in both cases, since as far as I understand, it isn't possible to tell the controller to keep the chip select asserted after the STOP command is sent. The controller can support SPI messages larger than 200 bytes if cs_change is set for individual transfers such that the portions with chip select asserted are never longer than 200 bytes. What is not supported is just SPI messages with a continuous chip select larger than 200. I don't think it is possible to express this using the current API, so drivers which do send SPI messages with cs_change can safely just look at the max_transfer_size limit. An example of user for this is sja1105_xfer() in drivers/net/dsa/sja1105/sja1105_spi.c which sends by default 64 * 4 = 256 byte transfers. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20210520131238.2903024-3-olteanv@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>		2021-05-21 13:13:33 +01:00
..
atmel-quadspi.c	spi: atmel-quadspi: Disable the QSPI IP at suspend()	2021-02-11 13:15:12 +00:00
internals.h
Kconfig	spi: altera: Make SPI_ALTERA_CORE invisible	2021-04-28 16:34:59 +01:00
Makefile	spi: altera: Add DFL bus driver for Altera API Controller	2021-04-20 17:26:41 +01:00
spi-altera-core.c	spi: altera: separate core code from platform code	2021-04-20 17:26:40 +01:00
spi-altera-dfl.c	spi: altera: Add DFL bus driver for Altera API Controller	2021-04-20 17:26:41 +01:00
spi-altera-platform.c	spi: altera: separate core code from platform code	2021-04-20 17:26:40 +01:00
spi-amd.c	spi: amd: Use devm_platform_ioremap_resource() in amd_spi_probe	2020-11-23 20:42:05 +00:00
spi-ar934x.c	spi: ar934x: Don't leak SPI master in probe error path	2020-12-07 14:18:59 +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: remove spi-master setup and cleanup assignment	2021-03-10 12:25:15 +00:00
spi-atmel.c	spi: atmel: Drop unused variable	2021-03-10 12:46:53 +00:00
spi-au1550.c	spi: spi-au1550: Fix various whitespace warnings	2021-01-22 16:26:21 +00:00
spi-axi-spi-engine.c	spi: spi-axi-spi-engine: remove usage of delay_usecs	2021-03-12 14:30:42 +00:00
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: fix pm_runtime	2021-03-10 12:25:12 +00:00
spi-bcm63xx.c	spi: bcm63xx-spi: don't check 'delay_usecs' field	2021-03-12 14:30:43 +00:00
spi-bcm2835.c	spi: bcm2835: Call the dedicated transfer completion function.	2021-01-14 14:27:39 +00:00
spi-bcm2835aux.c	spi: bcm2835aux: Call the dedicated transfer completion function.	2021-01-14 14:27:40 +00:00
spi-bcm-qspi.c	spi: spi-bcm-qspi: replace 'delay_usecs' with 'delay.value' check	2021-03-12 14:30:44 +00:00
spi-bcm-qspi.h
spi-bitbang-txrx.h
spi-bitbang.c	spi: spi-bitbang: Fix open brace following function definitions go on the next line	2021-03-24 19:51:08 +00:00
spi-brcmstb-qspi.c
spi-butterfly.c	spi: butterfly: Switch to use module_parport_driver()	2021-03-10 12:46:05 +00:00
spi-cadence-quadspi.c	spi: Updates for v5.13	2021-04-26 16:32:11 -07:00
spi-cadence.c	spi: cadence: cache reference clock rate during probe	2021-01-15 14:14:38 +00:00
spi-cavium-octeon.c
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-cavium.h
spi-clps711x.c	spi: clps711xx: remove redundant white-space	2021-02-04 18:45:59 +00:00
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	spi: davinci: Use device_get_match_data() helper	2021-04-09 13:44:04 +01:00
spi-dln2.c	spi: dln2: Fix reference leak to master	2021-04-09 13:43:57 +01:00
spi-dw-bt1.c	spi: dw: Avoid stack content exposure	2021-02-12 12:41:49 +00:00
spi-dw-core.c	spi: dw: Add support for 32-bits max xfer size	2020-12-09 12:14:22 +00:00
spi-dw-dma.c	spi: dw: Add generic DW SSI status-check method	2020-10-08 23:00:18 +01:00
spi-dw-mmio.c	spi: dw: Add support for the Canaan K210 SoC SPI	2020-12-09 12:14:23 +00:00
spi-dw-pci.c	spi: dw: Add DWC SSI capability	2020-10-08 23:00:06 +01:00
spi-dw.h	spi: dw: Add support for 32-bits max xfer size	2020-12-09 12:14:22 +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: remove check for 'delay_usecs'	2021-03-12 14:30:48 +00:00
spi-fsi.c	spi: fsi: add a missing of_node_put	2021-04-21 16:07:04 +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: Fix a resource leak in an error handling path	2021-05-10 13:00:27 +01:00
spi-fsl-espi.c	spi: fsl-espi: remove usage of 'delay_usecs' field	2021-03-12 14:30:49 +00:00
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-lpspi.c	spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()	2021-04-09 13:43:59 +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 iounmap() on error in of_fsl_spi_probe()	2021-04-08 15:21:58 +01:00
spi-fsl-spi.h
spi-geni-qcom.c	spi: spi-geni-qcom: Convert to use resource-managed OPP API	2021-03-16 10:14:11 +05:30
spi-gpio.c	spi: gpio: Don't leak SPI master in probe error path	2020-12-07 14:18:54 +00:00
spi-hisi-kunpeng.c	spi: hisi-kunpeng: Fix Woverflow warning on conversion	2021-04-07 16:58:34 +01:00
spi-hisi-sfc-v3xx.c	spi: hisi-sfc-v3xx: drop unnecessary ACPI_PTR and related ifendif protection	2021-04-12 17:07:38 +01:00
spi-img-spfi.c	spi: img-spfi: fix reference leak in img_spfi_resume	2020-11-02 15:53:25 +00:00
spi-imx.c	sound updates for 5.13	2021-04-30 12:48:14 -07:00
spi-iproc-qspi.c
spi-jcore.c	spi: jcore: Fix trailing statements should be on next line	2021-03-24 19:51:09 +00:00
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: lm70llp: Switch to use module_parport_driver()	2021-03-10 12:46:06 +00:00
spi-loopback-test.c	treewide: Change list_sort to use const pointers	2021-04-08 16:04:22 -07:00
spi-lp8841-rtc.c
spi-mem.c	spi: spi-mem: Fix code indent should use tabs where possible	2021-03-24 19:51:10 +00:00
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-mpc52xx.c	powerpc updates for 5.12	2021-02-22 14:34:00 -08:00
spi-mpc512x-psc.c
spi-mt65xx.c	spi: mediatek: add set_cs_timing support	2021-02-08 11:41:23 +00:00
spi-mt7621.c	spi: mt7621: Don't leak SPI master in probe error path	2020-12-07 14:18:59 +00:00
spi-mtk-nor.c	spi: spi-mtk-nor: Fix checkpatch spacing error	2021-03-24 19:51:07 +00:00
spi-mux.c	spi: spi-mux: Simplify with dev_err_probe()	2020-09-08 18:19:27 +01:00
spi-mxic.c	spi: mxic: Don't leak SPI master in probe error path	2020-12-07 14:18:52 +00:00
spi-mxs.c	spi: mxs: fix reference leak in mxs_spi_probe	2020-11-18 18:00:26 +00:00
spi-npcm-fiu.c	spi: npcm-fiu: Disable clock in probe error path	2020-12-07 14:19:00 +00:00
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: fspi: enable fspi driver for on imx8mp	2021-03-25 13:59:42 +00:00
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: Activate pinctrl idle state during runtime suspend	2021-03-10 12:46:51 +00:00
spi-omap-100k.c	spi: omap-100k: Fix reference leak to master	2021-04-09 13:44:00 +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: orion: set devdata properly as it is being used later	2021-04-09 13:44:02 +01:00
spi-pic32-sqi.c
spi-pic32.c	spi: pic32: Don't leak DMA channels in probe error path	2020-11-12 15:16:34 +00:00
spi-pl022.c	spi: pl022: Convert to use GPIO descriptors	2021-03-31 13:54:29 +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: Fix checkpatch spacing errors	2021-03-24 19:51:05 +00:00
spi-pxa2xx.c	Merge branch 'for-5.12' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.13	2021-04-15 19:29:40 +01:00
spi-pxa2xx.h
spi-qcom-qspi.c	spi: spi-qcom-qspi: Convert to use resource-managed OPP API	2021-03-16 10:14:11 +05:30
spi-qup.c	spi: qup: fix PM reference leak in spi_qup_remove()	2021-04-09 13:44:03 +01:00
spi-rb4xx.c	spi: rb4xx: Don't leak SPI master in probe error path	2020-12-07 14:18:55 +00:00
spi-realtek-rtl.c	spi: realtek-rtl: Add support for Realtek RTL838x/RTL839x SPI controllers	2021-02-04 18:45:57 +00:00
spi-rockchip.c	spi: rockchip: Fix code indent should use tabs where possible	2021-03-24 19:51:11 +00:00
spi-rpc-if.c	spi: rpc-if: Gaurd .pm assignment with CONFIG_PM_SLEEP #ifdef check	2021-01-11 16:39:09 +00:00
spi-rspi.c	spi: rspi: Fill in controller speed limits	2020-08-20 22:38:17 +01:00
spi-s3c24xx-regs.h	ARM: s3c24xx: move regs-spi.h into spi driver	2020-08-19 21:40:14 +02:00
spi-s3c24xx.c	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
spi-s3c64xx.c	spi: s3c64xx: constify driver/match data	2021-04-15 16:07:58 +01:00
spi-sc18is602.c	spi: sc18is602: implement .max_{transfer,message}_size() for the controller	2021-05-21 13:13:33 +01:00
spi-sh-hspi.c
spi-sh-msiof.c	spi: sh-msiof: Fill in controller speed limits	2021-01-13 12:19:09 +00:00
spi-sh-sci.c
spi-sh.c	spi: spi-sh: replace 'delay_usecs' with 'delay.value' in pr_debug	2021-03-12 14:30:45 +00:00
spi-sifive.c
spi-slave-mt27xx.c	spi: mediatek: add mt8195 spi slave support	2021-03-23 17:19:45 +00:00
spi-slave-system-control.c
spi-slave-time.c
spi-sprd-adi.c	spi: sprd: Fix checkpatch spacing error	2021-03-24 19:51:04 +00:00
spi-sprd.c	spi: sprd: Add missing MODULE_DEVICE_TABLE	2021-05-12 13:01:43 +01:00
spi-st-ssc4.c	spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path	2020-11-12 15:16:35 +00:00
spi-stm32-qspi.c	spi: stm32-qspi: fix debug format string	2021-04-22 16:30:40 +01:00
spi-stm32.c	Merge branch 'for-5.12' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.13	2021-04-15 19:29:40 +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: enable autosuspend feature	2020-10-26 23:29:05 +00:00
spi-synquacer.c	spi: spi-synquacer: fix set_cs handling	2021-02-03 16:23:07 +00:00
spi-tegra20-sflash.c	spi: spi-tegra20-flash: don't check 'delay_usecs' field for spi transfer	2021-03-12 14:30:46 +00:00
spi-tegra20-slink.c	spi: tegra20-slink: fix reference leak in slink ops of tegra20	2020-11-09 19:44:27 +00:00
spi-tegra114.c	spi: tegra114: fix reference leak in tegra spi ops	2020-11-09 19:44:29 +00:00
spi-tegra210-quad.c	spi: tegra210-quad: Add support for hardware dummy cycles transfer	2021-01-06 13:09:32 +00:00
spi-test.h
spi-ti-qspi.c	spi: spi-ti-qspi: Free DMA resources	2021-03-10 12:25:09 +00:00
spi-tle62x0.c
spi-topcliff-pch.c	spi: spi-topcliff-pch: Fix checkpatch spacing error	2021-03-24 19:51:03 +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-xilinx.c	spi: xilinx: Fix info message during probe	2020-09-17 19:56:01 +01:00
spi-xlp.c
spi-xtensa-xtfpga.c
spi-zynq-qspi.c	spi: spi-zynq-qspi: Fix stack violation bug	2021-04-29 14:06:06 +01:00
spi-zynqmp-gqspi.c	spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails	2021-04-16 13:44:15 +01:00
spi.c	spi: Don't have controller clean up spi device before driver unbind	2021-05-14 13:24:56 +01:00
spidev.c	spidev: Add Micron SPI NOR Authenta device compatible	2021-04-20 17:29:41 +01:00