Pratyush Yadav 539cf68cd5 spi: spi-mem: add spi_mem_dtr_supports_op() ... spi_mem_default_supports_op() rejects DTR ops by default to ensure that the controller drivers that haven't been updated with DTR support continue to reject them. It also makes sure that controllers that don't support DTR mode at all (which is most of them at the moment) also reject them. This means that controller drivers that want to support DTR mode can't use spi_mem_default_supports_op(). Driver authors have to roll their own supports_op() function and mimic the buswidth checks. See spi-cadence-quadspi.c for example. Or even worse, driver authors might skip it completely or get it wrong. Add spi_mem_dtr_supports_op(). It provides a basic sanity check for DTR ops and performs the buswidth requirement check. Move the logic for checking buswidth in spi_mem_default_supports_op() to a separate function so the logic is not repeated twice. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20210204141218.32229-1-p.yadav@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>		2021-02-11 15:51:36 +00:00
..
atmel-quadspi.c	spi: atmel-quadspi: Disable the QSPI IP at suspend()	2021-02-11 13:15:12 +00:00
internals.h
Kconfig	spi: remove sirf prima/atlas driver	2021-01-21 18:14:28 +00:00
Makefile	spi: realtek-rtl: Add support for Realtek RTL838x/RTL839x SPI controllers	2021-02-04 18:45:57 +00:00
spi-altera.c	spi: altera: fix return value for altera_spi_txrx()	2020-12-29 13:18:09 +00:00
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-atmel.c	spi: atmel: Put allocated master before return	2021-01-21 18:14:28 +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: Access register after clock initialization	2020-04-09 18:46:53 +01:00
spi-bcm63xx-hsspi.c	spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume	2020-11-09 19:44:30 +00:00
spi-bcm63xx.c	spi: bcm63xx-spi: add reset support	2020-06-17 14:29:58 +01:00
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: style: Simplify bool comparison	2021-01-11 14:03:56 +00:00
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: Add multi-chipselect support for Intel LGM SoC	2021-01-13 11:37:03 +00:00
spi-cadence.c	spi: cadence: Add SPI transfer delays	2020-10-09 16:00:47 +01:00
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: Fix use-after-free on unbind	2020-12-07 14:18:47 +00:00
spi-dln2.c
spi-dw-bt1.c	Merge remote-tracking branch 'spi/for-5.10' into spi-5.11	2020-12-17 17:09:51 +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-fsi.c	spi: fsi: Fix transfer returning without finalizing message	2020-11-11 12:34:29 +00:00
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 max_native_cs instead of num_chipselect to set SPI_MCR	2020-12-01 12:17:13 +00:00
spi-fsl-espi.c	Merge remote-tracking branch 'spi/for-5.10' into spi-next	2020-10-09 16:01:22 +01:00
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-lpspi.c	spi: lpspi: Fix use-after-free on unbind	2020-11-12 18:45:56 +00:00
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: fix use of spisel_boot signal on MPC8309	2020-11-30 12:52:49 +00:00
spi-fsl-spi.h
spi-geni-qcom.c	spi: spi-geni-qcom: Print an error when we timeout setting the CS	2020-12-18 17:42:17 +00:00
spi-gpio.c	spi: gpio: Don't leak SPI master in probe error path	2020-12-07 14:18:54 +00:00
spi-hisi-sfc-v3xx.c	spi: hisi-sfc-v3xx: add address mode check	2021-01-27 12:37:30 +00:00
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	spi: imx: Don't print error on -EPROBEDEFER	2021-01-19 14:09:26 +00:00
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 out-of-bounds read	2020-09-02 19:38:24 +01:00
spi-lp8841-rtc.c
spi-mem.c	spi: spi-mem: add spi_mem_dtr_supports_op()	2021-02-11 15:51:36 +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	spi: spi-mpc52xx: Use new structure for SPI transfer delays	2021-01-21 18:14:27 +00:00
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: Don't leak SPI master in probe error path	2020-12-07 14:18:53 +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: spi-nxp-fspi: fix fspi panic by unexpected interrupts	2020-11-23 14:10:02 +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: 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: orion: enable support for switching CS every transferred byte	2020-12-28 12:25:31 +00:00
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: 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: pxa2xx: Add support for Intel Alder Lake PCH-P	2021-01-14 16:46:09 +00:00
spi-pxa2xx.h
spi-qcom-qspi.c	spi: spi-qcom-qspi: Use irq trigger flags from firmware	2021-01-13 12:19:50 +00:00
spi-qup.c	spi: qup: remove redundant assignment to variable ret	2020-09-14 15:50:04 +01:00
spi-rb4xx.c	spi: rb4xx: 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: Call the dedicated transfer completion function.	2021-01-14 14:27:40 +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: spi-s3c64xx: Turn on interrupts upon resume	2020-10-02 21:54:24 +01:00
spi-sc18is602.c	spi: sc18is602: Don't leak SPI master in probe error path	2020-12-07 14:18:56 +00:00
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: Fix use-after-free on unbind	2020-12-07 14:18:50 +00:00
spi-sifive.c
spi-slave-mt27xx.c
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: fix reference leak in sprd_spi_remove	2020-11-11 12:39:32 +00:00
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 reference leak in stm32 qspi operations	2020-11-09 19:44:25 +00:00
spi-stm32.c	spi: stm32: make spurious and overrun interrupts visible	2021-02-05 19:17:01 +00:00
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: synquacer: Disable clock in probe error path	2020-11-12 15:16:33 +00:00
spi-tegra20-sflash.c	spi: tegra20-sflash: fix reference leak in tegra_sflash_resume	2020-11-09 19:44:28 +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: fix reference leak in ti_qspi_setup	2020-11-09 19:44:26 +00:00
spi-tle62x0.c
spi-topcliff-pch.c	spi/topcliff-pch: drop double zeroing	2020-09-21 17:56:38 +01:00
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: 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: support CS timing for HW & SW mode	2021-02-08 11:41:22 +00:00
spidev.c	spi: spidev: Remove redundant initialization of variable status	2020-09-09 16:27:46 +01:00