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linux/drivers/spi
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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: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
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: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
spi-mpc52xx.c
powerpc updates for 5.12
2021-02-22 14:34:00 -08:00
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 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: use new spi_transfer_delay_exec helper where straightforward
2019-10-15 11:51:57 +01:00
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: sifive: disable clk when probe fails and remove
2019-11-04 13:26:11 +00:00
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: 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-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