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1847e3046c528bd85bd51e2860f4139bd9052d6c
linux/drivers/spi
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Andreas Färber 1847e3046c spi: gpio: Implement LSB First bitbang support 
Add support for slave DT property spi-lsb-first, i.e., SPI_LSB_FIRST mode.
Duplicate the inline helpers bitbang_txrx_be_cpha{0,1} as LE versions.
Conditionally call them from all the spi-gpio txrx_word callbacks.

Some alternatives to this implementation approach were discussed back
then [0], but eventually it was considered reasonable.

[0] https://lore.kernel.org/linux-arm-kernel/20191212033952.5967-8-afaerber@suse.de/

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/feac3377-4ad1-77d8-9a18-3588d80fb909@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-22 11:56:41 +00:00
..
atmel-quadspi.c
spi: Fixed division by zero warning
2021-09-20 13:38:18 +01:00
internals.h
…
Kconfig
mtd: spi-nor / spi / MFD: Convert intel-spi to SPI MEM
2022-02-15 12:53:31 +00:00
Makefile
mtd: spi-nor / spi / MFD: Convert intel-spi to SPI MEM
2022-02-15 12:53:31 +00:00
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: Change to dynamic allocation of spi id
2021-10-20 01:53:15 +01:00
spi-altera-platform.c
spi: altera: Change to dynamic allocation of spi id
2021-10-20 01:53:15 +01:00
spi-amd.c
spi: amd: Fix building without ACPI enabled
2022-02-16 16:34:25 +00:00
spi-ar934x.c
spi: ar934x: fix transfer size
2022-01-04 14:59:40 +00:00
spi-armada-3700.c
spi: change clk_disable_unprepare to clk_unprepare
2022-01-26 12:58:14 +00:00
spi-at91-usart.c
spi: at91-usart: replacing legacy gpio interface for gpiod
2021-10-20 00:23:21 +01:00
spi-ath79.c
spi: ath79: add mem_ops for fast-read
2022-02-08 13:40:18 +00:00
spi-atmel.c
spi: atmel: Fix typo
2022-01-07 13:36:37 +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: spi-bcm2835: Fix deadlock
2021-07-20 13:34:05 +01:00
spi-bcm2835aux.c
spi: bcm2835aux: Convert to use GPIO descriptors
2022-02-01 16:08:47 +00:00
spi-bcm-qspi.c
spi: bcm-qspi: check for valid cs before applying chip select
2022-01-28 13:05:20 +00:00
spi-bcm-qspi.h
…
spi-bitbang-txrx.h
spi: gpio: Implement LSB First bitbang support
2022-02-22 11:56:41 +00:00
spi-bitbang.c
spi: Cleanup on failure of initial setup
2021-06-01 14:03:12 +01:00
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: cadence-quadspi: fix write completion support
2021-11-12 18:17:59 +00:00
spi-cadence-xspi.c
spi: cadence: Add of_node_put() before return
2021-10-15 16:11:00 +01:00
spi-cadence.c
spi: cadence: Correct initialisation of runtime PM again
2021-07-19 12:58:44 +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: 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_disable_unprepare in the remove function
2021-08-19 18:20:10 +01:00
spi-davinci.c
spi: davinci: invoke chipselect callback
2021-08-24 20:53:24 +01:00
spi-dln2.c
spi: dln2: Propagate firmware node
2021-12-23 13:38:38 +00:00
spi-dw-bt1.c
spi: dw: Put the driver entities naming in order
2021-11-16 14:30:05 +00:00
spi-dw-core.c
spi: dw: Propagate firmware node
2021-12-23 13:38:39 +00:00
spi-dw-dma.c
spi: dw: Put the driver entities naming in order
2021-11-16 14:30:05 +00:00
spi-dw-mmio.c
spi: dw: Replace DWC_HSSI capability with IP-core version checker
2021-11-16 14:30:09 +00:00
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: Define the capabilities in a continuous bit-flags set
2021-11-16 14:30:10 +00:00
spi-ep93xx.c
spi: spi-ep93xx: Prepare clock before using it
2021-08-03 18:27:24 +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: Fix contention in the FSI2SPI engine
2021-10-27 11:31:27 +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 issue with uninitialized dma_slave_config
2021-08-10 13:22:19 +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: lpspi: release requested DMA channels
2021-11-15 13:27:16 +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: Cleanup on failure of initial setup
2021-06-01 14:03:12 +01:00
spi-fsl-spi.h
…
spi-geni-qcom.c
spi: qcom: geni: handle timeout for gpi mode
2022-01-06 16:16:44 +00:00
spi-gpio.c
spi: gpio: Implement LSB First bitbang support
2022-02-22 11:56:41 +00:00
spi-hisi-kunpeng.c
spi: hisi-kunpeng: Fix the debugfs directory name incorrect
2021-11-17 13:04:54 +00:00
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
Merge tag 'drivers-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2021-09-01 15:25:28 -07:00
spi-ingenic.c
SPI: add Ingenic JZ47xx driver.
2021-09-13 02:00:26 +01:00
spi-intel-pci.c
spi: intel-pci: Add support for Intel Ice Lake-N SPI serial flash
2022-02-16 16:34:24 +00:00
spi-intel-platform.c
mtd: spi-nor: intel-spi: Convert to SPI MEM
2022-02-14 12:53:09 +00:00
spi-intel.c
mtd: spi-nor: intel-spi: Convert to SPI MEM
2022-02-14 12:53:09 +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-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: Use of_device_get_match_data()
2022-02-21 13:25:19 +00:00
spi-lm70llp.c
spi: lm70llp: add parenthesis for sizeof
2021-05-20 18:00:34 +01:00
spi-loopback-test.c
spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
2021-05-10 13:07:53 +01:00
spi-lp8841-rtc.c
…
spi-mem.c
spi: make remove callback a void function
2022-02-09 13:00:45 +00:00
spi-meson-spicc.c
spi: meson-spicc: add IRQ check in meson_spicc_probe
2022-01-26 13:32:36 +00:00
spi-meson-spifc.c
spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
2022-01-07 13:36:38 +00:00
spi-mpc52xx-psc.c
spi: mpc52xx-psc: add parenthesis for sizeof
2021-05-20 18:00:37 +01:00
spi-mpc52xx.c
spi: mpc52xx: add parenthesis for sizeof
2021-05-20 18:00:36 +01:00
spi-mpc512x-psc.c
spi: mpc512x-psc: Fix compile errors
2022-02-02 16:09:29 +00:00
spi-mt65xx.c
spi: New support and problem adjustment of SPI rockchip
2022-02-17 18:30:55 +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: make some internal variables static
2022-01-26 13:32:40 +00:00
spi-mux.c
spi-mux: Fix false-positive lockdep splats
2021-10-14 13:32:19 +01:00
spi-mxic.c
spi: mxic: add missing braces
2021-08-12 12:19:19 +01:00
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: Use SPI_MODE_X_MASK
2021-05-11 15:42:48 +01:00
spi-nxp-fspi.c
spi: spi-nxp-fspi: don't depend on a specific node name erratum workaround
2021-10-02 01:31:49 +01:00
spi-oc-tiny.c
spi: oc-tiny: Use SPI_MODE_X_MASK
2021-05-11 15:42:49 +01:00
spi-omap2-mcspi.c
Merge branch 'for-5.13' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.14
2021-06-01 18:33:33 +01:00
spi-omap-100k.c
spi: fix some invalid char occurrences
2021-05-20 17:58:33 +01:00
spi-omap-uwire.c
Merge branch 'for-5.13' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.14
2021-06-01 18:33:33 +01:00
spi-orion.c
spi: orion: Add of_node_put() before goto
2021-10-15 16:10:59 +01:00
spi-pic32-sqi.c
…
spi-pic32.c
spi: pic32: Convert to use GPIO descriptors
2022-01-31 15:17:30 +00:00
spi-pl022.c
spi: spl022: fix Microwire full duplex mode
2021-10-26 11:53:57 +01:00
spi-ppc4xx.c
spi: ppc4xx: add parenthesis for sizeof
2021-05-20 18:00:40 +01:00
spi-pxa2xx-dma.c
spi: pxa2xx: Fix style of and typos in the comments and messages
2021-05-18 14:05:35 +01:00
spi-pxa2xx-pci.c
spi: pxa2xx: Fix inconsistent indenting
2021-05-21 13:13:42 +01:00
spi-pxa2xx.c
spi: pxa2xx: Add support for Intel Raptor Lake PCH-S
2022-02-16 16:34:26 +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: 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-sfc.c
spi: rockchip-sfc: Fix assigned but never used return error codes
2021-08-23 16:41:08 +01:00
spi-rockchip.c
spi: rockchip: clear interrupt status in error handler
2022-02-17 17:15:11 +00:00
spi-rpc-if.c
memory: renesas-rpc-if: Add support for RZ/G2L
2021-11-16 12:09:11 +01:00
spi-rspi.c
spi: spi-rspi: Drop redeclaring ret variable in qspi_transfer_in()
2021-11-18 13:57:55 +00:00
spi-s3c24xx-regs.h
ARM: s3c24xx: move regs-spi.h into spi driver
2020-08-19 21:40:14 +02:00
spi-s3c24xx.c
spi: s3c24xx: Convert to GPIO descriptors
2022-01-24 13:37:34 +00:00
spi-s3c64xx.c
spi: s3c64xx: Convert to use GPIO descriptors
2022-01-24 13:37:33 +00:00
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: drop unneeded MODULE_ALIAS
2021-09-17 13:17:50 +01:00
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: 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-sprd-adi.c
spi: sprd: Add ADI r3 support
2021-08-26 12:09:38 +01:00
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: Covert to use GPIO descriptors
2022-02-01 16:08:45 +00:00
spi-stm32-qspi.c
spi: stm32-qspi: Update spi registering
2022-01-19 16:47:41 +00:00
spi-stm32.c
spi: stm32: ignore Rx queue not empty in stm32f4 Tx only mode
2022-02-22 11:56:39 +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: Fix chipselect/clock bug
2021-06-23 11:48:36 +01:00
spi-sunplus-sp7021.c
spi: clean up some inconsistent indenting
2022-02-18 14:39:06 +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: Add OPP support
2021-12-16 14:05:24 +01:00
spi-tegra114.c
spi: tegra114: Add missing IRQ check in tegra_spi_probe
2022-02-08 13:40:19 +00:00
spi-tegra210-quad.c
spi: tegra210-quad: Fix missin IRQ check in tegra_qspi_probe
2022-02-08 13:40:21 +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: make remove callback a void function
2022-02-09 13:00:45 +00:00
spi-topcliff-pch.c
spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
2021-05-10 13:17:16 +01:00
spi-uniphier.c
spi: uniphier: fix reference count leak in uniphier_spi_probe()
2022-01-26 15:52:05 +00:00
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: Remove Netlogic XLP variants
2021-11-15 13:27:17 +00:00
spi-xtensa-xtfpga.c
…
spi-zynq-qspi.c
spi: spi-zynq-qspi: Fix a NULL pointer dereference in zynq_qspi_exec_mem_op()
2022-02-08 13:37:50 +00:00
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: use sysfs_emit() for printing statistics and add trailing newline
2022-02-18 14:39:07 +00:00
spidev.c
spi: make remove callback a void function
2022-02-09 14:32:59 +00:00