linux/drivers/spi
Joy Chakraborty d1ca1c5297
spi: dw: Add DMA directional capability check
Check capabilities of DMA controller during init to make sure it is
capable of handling MEM2DEV for tx channel, DEV2MEM for rx channel.

Current DW DMA driver requires both tx and rx channel to be configured
and functional for any kind of transfers to take effect including
half duplex. Hence, check for both tx and rx direction and fail on
unavailbility of either.

* tested on Baikal-T1 based system with DW SPI-looped back interface
transferring a chunk of data with DFS:8,12,16.

Signed-off-by: Joy Chakraborty <joychakr@google.com
Reviewed-by: Serge Semin <fancer.lancer@gmail.com
Tested-by: Serge Semin <fancer.lancer@gmail.com
Link: https://lore.kernel.org/r/20230512104746.1797865-2-joychakr@google.com
Signed-off-by: Mark Brown <broonie@kernel.org
2023-05-15 10:46:16 +09:00
..
atmel-quadspi.c spi: atmel-quadspi: Convert to platform remove callback returning void 2023-03-17 15:47:51 +00:00
internals.h
Kconfig spi: add support for Amlogic A1 SPI Flash Controller 2023-04-11 12:40:30 +01:00
Makefile spi: add support for Amlogic A1 SPI Flash Controller 2023-04-11 12:40:30 +01:00
spi-altera-core.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-altera-dfl.c spi: spi-altera-dfl: switch to use modern name 2022-12-29 13:22:04 +00:00
spi-altera-platform.c spi: spi-altera-platform: switch to use modern name 2022-12-29 13:22:05 +00:00
spi-amd.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-amlogic-spifc-a1.c spi: add support for Amlogic A1 SPI Flash Controller 2023-04-11 12:40:30 +01:00
spi-ar934x.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-armada-3700.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-aspeed-smc.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-at91-usart.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-ath79.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-atmel.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-au1550.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-axi-spi-engine.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-bcm63xx-hsspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-bcm63xx.c spi: bcm63xx: use macro DEFINE_SIMPLE_DEV_PM_OPS 2023-04-25 16:55:45 +01:00
spi-bcm2835.c spi: bcm2835: Convert to platform remove callback returning void 2023-03-31 12:54:07 +01:00
spi-bcm2835aux.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-bcm-qspi.c spi: bcm-qspi: Mark OF related data as maybe unused 2023-03-13 14:09:12 +00:00
spi-bcm-qspi.h spi: bcm-qspi: Make bcm_qspi_remove() return void 2022-10-18 19:16:53 +01:00
spi-bcmbca-hsspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-bitbang-txrx.h spi: bitbang: Fix lsb-first Rx 2022-08-15 01:26:20 +01:00
spi-bitbang.c
spi-brcmstb-qspi.c spi: brcmstb-qspi: Convert to platform remove callback returning void 2023-03-06 12:31:15 +00:00
spi-butterfly.c
spi-cadence-quadspi.c spi: cadence-quadspi: use macro DEFINE_SIMPLE_DEV_PM_OPS 2023-04-20 12:52:07 +01:00
spi-cadence-xspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-cadence.c spi: spi-cadence: Add support for Slave mode 2023-04-18 15:08:23 +01:00
spi-cavium-octeon.c spi: cavium-octeon: Convert to platform remove callback returning void 2023-03-06 12:31:17 +00:00
spi-cavium-thunderx.c
spi-cavium.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-cavium.h
spi-clps711x.c spi: clps711x: Use syscon_regmap_lookup_by_phandle 2022-04-25 14:01:09 +01:00
spi-coldfire-qspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-davinci.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-dln2.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-dw-bt1.c spi: dw-bt1: Convert to platform remove callback returning void 2023-03-06 12:31:21 +00:00
spi-dw-core.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-dw-dma.c spi: dw: Add DMA directional capability check 2023-05-15 10:46:16 +09:00
spi-dw-mmio.c spi: dw: Add support for AMD Pensando Elba SoC 2023-04-17 18:18:11 +01:00
spi-dw-pci.c spi: dw: Put the driver entities naming in order 2021-11-16 14:30:05 +00:00
spi-dw.h spi: dw: Add support for Intel Thunder Bay SPI controller 2022-07-13 13:32:32 +01:00
spi-ep93xx.c spi: ep93xx: Convert to platform remove callback returning void 2023-03-06 12:31:23 +00:00
spi-falcon.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-fsi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-fsl-cpm.c spi: fsl-cpm: Use 16 bit mode for large transfers with even size 2023-04-05 12:33:34 +01:00
spi-fsl-cpm.h
spi-fsl-dspi.c spi: fsl-dspi: Remove unneeded cast to same type 2023-03-13 14:09:03 +00:00
spi-fsl-espi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-lpspi.c spi: lpspi: run transfer speed_hz sanity check 2023-05-08 09:11:47 +09:00
spi-fsl-qspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-fsl-spi.c spi: fsl-spi: No need to check transfer length versus word size 2023-04-05 12:33:36 +01:00
spi-fsl-spi.h
spi-geni-qcom.c spi: spi-geni-qcom: Correct CS_TOGGLE bit in SPI_TRANS_CFG 2023-05-08 09:11:48 +09:00
spi-gpio.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-gxp.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-hisi-kunpeng.c spi: hisi-kunpeng: Convert to platform remove callback returning void 2023-03-06 12:31:29 +00:00
spi-hisi-sfc-v3xx.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-img-spfi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-imx.c spi: imx: Use devm_platform_get_and_ioremap_resource() 2023-04-04 12:46:54 +01:00
spi-ingenic.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-intel-pci.c spi: intel-pci: Add support for Meteor Lake-S SPI serial flash 2023-03-31 12:54:07 +01:00
spi-intel-platform.c mtd: spi-nor: intel-spi: Convert to SPI MEM 2022-02-14 12:53:09 +00:00
spi-intel.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-intel.h mtd: spi-nor: intel-spi: Convert to SPI MEM 2022-02-14 12:53:09 +00:00
spi-iproc-qspi.c spi: iproc-qspi: Convert to platform remove callback returning void 2023-03-06 12:31:31 +00:00
spi-jcore.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-lantiq-ssc.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-lm70llp.c
spi-loopback-test.c spi: spi-loopback-test: Add module param for iteration length 2023-04-13 11:42:20 +01:00
spi-lp8841-rtc.c
spi-mem.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-meson-spicc.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-meson-spifc.c spi: meson-spifc: Convert to platform remove callback returning void 2023-03-06 12:31:33 +00:00
spi-microchip-core-qspi.c spi: microchip-core-qspi: Convert to platform remove callback returning void 2023-03-06 12:31:34 +00:00
spi-microchip-core.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mpc52xx-psc.c spi: mpc5xxx-psc: Consistently use device property APIs 2023-03-07 13:58:34 +00:00
spi-mpc52xx.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mpc512x-psc.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mt65xx.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mt7621.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mtk-nor.c spi: mtk-nor: Convert to platform remove callback returning void 2023-03-06 21:17:45 +00:00
spi-mtk-snfi.c spi: mtk-snfi: Convert to platform remove callback returning void 2023-03-06 21:17:46 +00:00
spi-mux.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mxic.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-mxs.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-npcm-fiu.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-npcm-pspi.c spi: npcm-pspi: Convert to platform remove callback returning void 2023-03-06 21:17:50 +00:00
spi-nxp-fspi.c spi: spi-nxp-fspi: use DLL calibration when clock rate > 100MHz 2023-03-22 13:17:43 +00:00
spi-oc-tiny.c spi: oc-tiny: Convert to platform remove callback returning void 2023-03-06 21:17:51 +00:00
spi-omap2-mcspi.c spi: omap2-mcspi: Use devm_platform_get_and_ioremap_resource() 2023-03-27 12:42:32 +01:00
spi-omap-uwire.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-orion.c spi: orion: Use devm_platform_get_and_ioremap_resource() 2023-03-27 12:42:33 +01:00
spi-pci1xxxx.c spi: mchp-pci1xxxx: Fix improper implementation of disabling chip select lines 2023-04-05 12:33:28 +01:00
spi-pic32-sqi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-pic32.c spi: pic32: Use devm_platform_get_and_ioremap_resource() 2023-03-27 12:42:34 +01:00
spi-pl022.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-ppc4xx.c spi: ppc4xx: Convert to platform remove callback returning void 2023-03-06 21:17:57 +00:00
spi-pxa2xx-dma.c
spi-pxa2xx-pci.c spi: pxa2xx-pci: Constify struct pxa_spi_info variables 2022-02-28 12:10:27 +00:00
spi-pxa2xx.c spi: pxa2xx: Mark OF related data as maybe unused 2023-03-13 14:09:11 +00:00
spi-pxa2xx.h spi: pxa2xx: Get rid of unused ->cs_control() 2021-11-29 12:19:59 +00:00
spi-qcom-qspi.c spi: spi-qcom-qspi: Add DMA mode support 2023-05-08 08:50:40 +09:00
spi-qup.c spi: qup: Convert to platform remove callback returning void 2023-04-04 12:47:11 +01:00
spi-rb4xx.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-realtek-rtl.c
spi-rockchip-sfc.c spi: Updates for v6.4 2023-04-27 11:02:26 -07:00
spi-rockchip.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-rpc-if.c spi: rpc-if: Convert to platform remove callback returning void 2023-03-06 21:18:02 +00:00
spi-rspi.c spi: rspi: Mark OF related data as maybe unused 2023-03-13 14:09:15 +00:00
spi-s3c64xx.c spi: s3c64xx: Disable IRQ mode when using DMA 2023-05-11 10:30:43 +09:00
spi-sc18is602.c spi: sc18is602: Mark OF related data as maybe unused 2023-03-13 14:09:14 +00:00
spi-sh-hspi.c spi: sh-hspi: Convert to platform remove callback returning void 2023-03-06 21:18:06 +00:00
spi-sh-msiof.c spi: struct spi_device constification 2023-03-13 18:19:31 +00:00
spi-sh-sci.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-sh.c spi: sh: Convert to platform remove callback returning void 2023-03-06 21:18:08 +00:00
spi-sifive.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-slave-mt27xx.c spi: slave-mt27xx: Convert to platform remove callback returning void 2023-03-06 21:18:10 +00:00
spi-slave-system-control.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
spi-slave-time.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
spi-sn-f-ospi.c spi: f_ospi: Add missing spi_mem_default_supports_op() helper 2023-03-22 13:17:43 +00:00
spi-sprd-adi.c spi: sprd-adi: Use devm_platform_get_and_ioremap_resource() 2023-03-27 12:42:35 +01:00
spi-sprd.c spi: sprd: Use devm_platform_get_and_ioremap_resource() 2023-03-27 12:42:35 +01:00
spi-st-ssc4.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-stm32-qspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-stm32.c spi: stm32: Use devm_platform_get_and_ioremap_resource() 2023-04-04 12:46:55 +01:00
spi-sun4i.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-sun6i.c spi: sun6i: add support for R329/D1/R528/T113s SPI controllers 2023-05-12 13:07:44 +09:00
spi-sunplus-sp7021.c spi: sunplus-sp7021: Convert to platform remove callback returning void 2023-03-06 21:18:18 +00:00
spi-synquacer.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-tegra20-sflash.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-tegra20-slink.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-tegra114.c spi: tegra114: Use devm_platform_get_and_ioremap_resource() 2023-04-04 12:46:56 +01:00
spi-tegra210-quad.c spi: tegra210-quad: Enable TPM wait polling 2023-04-21 14:37:04 +01:00
spi-test.h
spi-ti-qspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-tle62x0.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
spi-topcliff-pch.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-uniphier.c spi: uniphier: Convert to platform remove callback returning void 2023-03-06 21:18:24 +00:00
spi-wpcm-fiu.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-xcomm.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-xilinx.c spi: xilinx: Use devm_platform_get_and_ioremap_resource() 2023-03-28 14:49:37 +01:00
spi-xlp.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-xtensa-xtfpga.c spi: xtensa-xtfpga: Convert to platform remove callback returning void 2023-03-06 21:18:26 +00:00
spi-zynq-qspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi-zynqmp-gqspi.c spi: Replace all spi->chip_select and spi->cs_gpiod references with function call 2023-03-11 12:34:01 +00:00
spi.c Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
spidev.c Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00