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f8918ef1267edab4d9b2154c22a912c87cc66f66
linux/drivers/spi
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David Lechner f8918ef126 spi: axi-spi-engine: don't emit XFER_BITS for empty xfer 
This adds a check on xfer->len to avoid emitting an XFER_BITS
instruction for empty transfers in the AXI SPI Engine driver. This
avoids unnecessary delays caused by executing an instruction that has
no effect on the actual SPI transfer.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240723-spi-axi-spi-engine-opt-bpw-v1-1-2625ba4c4387@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-07-29 01:23:21 +01:00
..
atmel-quadspi.c
spi: atmel-quadspi: Add missing check for clk_prepare
2024-05-27 01:33:39 +01:00
internals.h
spi: Rework per message DMA mapped flag to be per transfer
2024-06-10 12:49:03 +01:00
Kconfig
spi: add ch341a usb2spi driver
2024-07-08 17:01:10 +01:00
Makefile
spi: add ch341a usb2spi driver
2024-07-08 17:01:10 +01:00
spi-airoha-snfi.c
spi: airoha: add SPI-NAND Flash controller driver
2024-04-30 23:40:28 +09:00
spi-altera-core.c
spi: add missing MODULE_DESCRIPTION() macros
2024-06-10 12:49:05 +01:00
spi-altera-dfl.c
…
spi-altera-platform.c
spi: altera: Drop unneeded MODULE_ALIAS
2024-04-15 10:17:25 +09:00
spi-amd.c
spi: spi_amd: Add support for SPI MEM framework
2024-03-25 20:30:06 +00:00
spi-amlogic-spifc-a1.c
…
spi-ar934x.c
spi: ar934x: Use helper function devm_clk_get_enabled()
2023-09-11 01:31:52 +01:00
spi-armada-3700.c
spi: armada-3700: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:26 +09:00
spi-aspeed-smc.c
spi: aspeed: Use helper function devm_clk_get_enabled()
2023-09-11 01:31:54 +01:00
spi-at91-usart.c
spi: at91-usart: Remove some dead code
2023-09-25 16:27:48 +02:00
spi-ath79.c
spi: bitbang: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:48 +00:00
spi-atmel.c
spi: remove struct spi_message::is_dma_mapped
2024-03-25 20:30:07 +00:00
spi-au1550.c
spi: au1550: t->{tx,rx}_dma checks
2024-03-28 21:09:45 +00:00
spi-axi-spi-engine.c
spi: axi-spi-engine: don't emit XFER_BITS for empty xfer
2024-07-29 01:23:21 +01:00
spi-bcm63xx-hsspi.c
…
spi-bcm63xx.c
…
spi-bcm2835.c
spi: bcm2835: implement ctlr->max_transfer_size
2024-02-05 14:35:44 +00:00
spi-bcm2835aux.c
spi: bcm2835aux: Use helper function devm_clk_get_enabled()
2023-09-11 01:31:57 +01:00
spi-bcm-qspi.c
spi: bcm-qspi: fix SFDP BFPT read by usig mspi read
2024-01-23 13:28:03 +00:00
spi-bcm-qspi.h
…
spi-bcmbca-hsspi.c
…
spi-bitbang-txrx.h
…
spi-bitbang.c
spi: bitbang: Convert unsigned to unsigned int
2024-05-27 01:33:23 +01:00
spi-brcmstb-qspi.c
…
spi-butterfly.c
parport: Remove parport_driver.devmodel
2024-07-03 16:44:22 +02:00
spi-cadence-quadspi.c
spi: cadence-qspi: add mobileye,eyeq5-ospi compatible
2024-04-26 11:09:25 +09:00
spi-cadence-xspi.c
spi: cadence: Ensure data lines set to low during dummy-cycle period
2024-05-29 13:43:02 +01:00
spi-cadence.c
spi: spi-cadence: Enable spi refclk in slave mode
2024-06-19 13:54:17 +01:00
spi-cavium-octeon.c
…
spi-cavium-thunderx.c
spi: spi-cavium-thunderx: Use helper function devm_clk_get_enabled()
2023-09-11 01:31:59 +01:00
spi-cavium.c
spi: cavium: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:50 +00:00
spi-cavium.h
spi: cavium: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:50 +00:00
spi-ch341.c
spi: add ch341a usb2spi driver
2024-07-08 17:01:10 +01:00
spi-clps711x.c
…
spi-coldfire-qspi.c
spi: coldfire-qspi: drop driver owner assignment
2024-03-28 13:58:41 +00:00
spi-cs42l43.c
spi: cs42l43: Add speaker id support to the bridge configuration
2024-06-20 21:10:15 +01:00
spi-davinci.c
spi: davinci: Unset POWERDOWN bit when releasing resources
2024-07-01 13:12:18 +01:00
spi-dln2.c
…
spi-dw-bt1.c
spi: dw: differentiate between unsupported and invalid requests
2024-05-27 01:33:04 +01:00
spi-dw-core.c
spi: dw: Use new spi_xfer_is_dma_mapped() helper
2024-06-10 12:48:58 +01:00
spi-dw-dma.c
spi: dw: remove redundant assignment to variable len
2024-02-15 14:17:19 +00:00
spi-dw-mmio.c
spi: dw: Bail out early on unsupported target mode
2024-05-09 17:48:06 +02:00
spi-dw-pci.c
…
spi-dw.h
spi: dw: Convert dw_spi::num_cs to u32
2024-05-03 11:09:24 +09:00
spi-ep93xx.c
…
spi-falcon.c
…
spi-fsi.c
…
spi-fsl-cpm.c
spi: add missing MODULE_DESCRIPTION() macros
2024-06-10 12:49:05 +01:00
spi-fsl-cpm.h
spi: fsl: remove is_dma_mapped checks
2024-03-28 21:09:46 +00:00
spi-fsl-dspi.c
spi: fsl-dspi: use common proptery 'spi-cs-setup(hold)-delay-ns'
2024-07-01 13:12:42 +01:00
spi-fsl-espi.c
…
spi-fsl-lib.c
spi: add missing MODULE_DESCRIPTION() macros
2024-06-10 12:49:05 +01:00
spi-fsl-lib.h
…
spi-fsl-lpspi.c
spi: spi-fsl-lpspi: Pass pm_ptr()
2024-06-25 20:04:32 +01:00
spi-fsl-qspi.c
…
spi-fsl-spi.c
spi: fsl: remove is_dma_mapped checks
2024-03-28 21:09:46 +00:00
spi-fsl-spi.h
…
spi-geni-qcom.c
spi: geni-qcom: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:51 +00:00
spi-gpio.c
spi: gpio: Use traditional pattern when checking error codes
2024-05-27 01:33:30 +01:00
spi-gxp.c
spi: spi-gxp: BUG: Correct spi write return value
2023-09-27 17:06:36 +02:00
spi-hisi-kunpeng.c
spi: hisi-kunpeng: Delete the dump interface of data registers in debugfs
2024-04-16 19:59:48 +09:00
spi-hisi-sfc-v3xx.c
spi: hisi-sfc-v3xx: Return IRQ_NONE if no interrupts were detected
2024-01-23 15:05:18 +00:00
spi-img-spfi.c
…
spi-imx.c
spi: spi-imx: Pass pm_ptr()
2024-06-25 20:04:31 +01:00
spi-ingenic.c
spi: ingenic: Use new spi_xfer_is_dma_mapped() helper
2024-06-10 12:48:59 +01:00
spi-intel-pci.c
spi: intel-pci: Add support for Lunar Lake-M SPI serial flash
2024-02-12 13:41:35 +00:00
spi-intel-platform.c
…
spi-intel.c
spi: intel: Keep the BIOS partition inside the first chip
2024-02-05 14:35:47 +00:00
spi-intel.h
…
spi-iproc-qspi.c
…
spi-jcore.c
…
spi-lantiq-ssc.c
spi: lantiq-ssc: Use helper function devm_clk_get_enabled()
2023-09-11 01:32:03 +01:00
spi-ljca.c
spi: ljca: switch to use devm_spi_alloc_host()
2023-12-11 12:55:16 +00:00
spi-lm70llp.c
parport: Remove parport_driver.devmodel
2024-07-03 16:44:22 +02:00
spi-loongson-core.c
…
spi-loongson-pci.c
…
spi-loongson-plat.c
…
spi-loongson.h
…
spi-loopback-test.c
spi: loopback-test: drop driver owner assignment
2024-03-28 13:58:40 +00:00
spi-lp8841-rtc.c
spi: lp-8841: switch to use modern name
2023-09-11 01:31:31 +01:00
spi-mem.c
spi: Fix error code checking in spi_mem_exec_op()
2024-03-14 14:14:20 +00:00
spi-meson-spicc.c
spi: meson-spicc: add spicc loopback mode
2024-06-12 16:19:59 +01:00
spi-meson-spifc.c
spi: Use devm_clk_get_*() helper function to
2023-09-11 22:43:17 +01:00
spi-microchip-core-qspi.c
spi: microchip-core-qspi: fix setting spi bus clock rate
2024-05-09 06:59:19 +02:00
spi-microchip-core.c
spi: microchip-core: add support for word sizes of 1 to 32 bits
2024-07-15 19:08:20 +01:00
spi-mpc52xx-psc.c
spi: mpc52xx-psc: Make mpc52xx_psc_spi_transfer_one_message() static
2023-10-06 12:34:31 +01:00
spi-mpc52xx.c
spi: mpc52xx: explicitly include linux/platform_device.h
2023-12-08 20:13:24 +00:00
spi-mpc512x-psc.c
spi: mpc512x-psc: switch to use modern name
2023-09-11 01:31:35 +01:00
spi-mt65xx.c
spi: spi-mt65xx: Rename a variable in interrupt handler
2024-03-25 15:03:03 +00:00
spi-mt7621.c
spi: mt7621: allow GPIO chip select lines
2024-03-25 15:03:02 +00:00
spi-mtk-nor.c
spi: mtk-nor: switch to use modern name
2023-09-11 01:31:39 +01:00
spi-mtk-snfi.c
spi: Use devm_clk_get_*() helper function to
2023-09-11 22:43:17 +01:00
spi-mux.c
spi: mux: set ctlr->bits_per_word_mask
2024-07-09 17:42:33 +01:00
spi-mxic.c
spi: mxic: differentiate between unsupported and invalid requests
2024-05-27 01:33:05 +01:00
spi-mxs.c
spi-mxs: Fix chipselect glitch
2024-02-13 15:48:22 +00:00
spi-npcm-fiu.c
spi: Unify error codes by replacing -ENOTSUPP with -EOPNOTSUPP
2023-11-30 12:12:39 +00:00
spi-npcm-pspi.c
spi: npcm-pspi: switch to use modern name
2023-09-11 01:31:43 +01:00
spi-nxp-fspi.c
spi: nxp-fspi: Adjust LUT debug output alignment
2024-01-22 00:06:54 +00:00
spi-oc-tiny.c
spi: oc-tiny: Remove unused of_gpio.h
2024-04-17 23:01:11 +09:00
spi-omap2-mcspi.c
Merge tag 'spi-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
2024-07-15 18:03:43 -07:00
spi-omap-uwire.c
spi: add missing MODULE_DESCRIPTION() macros
2024-06-10 12:49:05 +01:00
spi-orion.c
spi: orion: Use helper function devm_clk_get_enabled()
2023-09-11 01:32:09 +01:00
spi-pci1xxxx.c
spi: pci1xxxx: Use new spi_xfer_is_dma_mapped() helper
2024-06-10 12:49:01 +01:00
spi-pic32-sqi.c
spi: pic32-sqi: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:29 +09:00
spi-pic32.c
spi: pic32: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:30 +09:00
spi-pl022.c
spi: pl022: update description of internal_cs_control()
2023-12-15 12:58:18 +00:00
spi-ppc4xx.c
spi: Merge up v6.8 release
2024-03-18 17:30:46 +00:00
spi-pxa2xx-dma.c
spi: pxa2xx: Remove DMA parameters from struct chip_data
2024-05-03 11:11:36 +09:00
spi-pxa2xx-pci.c
spi: pxa2xx: Convert PCI driver to use spi-pxa2xx code directly
2024-06-03 16:00:04 +01:00
spi-pxa2xx-platform.c
spi: pxa2xx: Move platform driver to a separate file
2024-06-03 16:00:03 +01:00
spi-pxa2xx.c
spi: pxa2xx: Use new spi_xfer_is_dma_mapped() helper
2024-06-10 12:49:01 +01:00
spi-pxa2xx.h
spi: pxa2xx: Move platform driver to a separate file
2024-06-03 16:00:03 +01:00
spi-qcom-qspi.c
…
spi-qup.c
spi: Rework DMA mapped flag
2024-06-11 11:38:25 +01:00
spi-rb4xx.c
spi: rb4xx: switch to use modern name
2023-08-21 14:29:27 +01:00
spi-realtek-rtl.c
spi: realtek-rtl: switch to use devm_spi_alloc_host()
2023-08-21 14:29:28 +01:00
spi-rockchip-sfc.c
spi: rockchip-sfc: switch to use modern name
2023-08-21 14:29:29 +01:00
spi-rockchip.c
spi: spi-rockchip: Fix max_native_cs
2024-02-05 14:35:49 +00:00
spi-rpc-if.c
spi: rpc-if: differentiate between unsupported and invalid requests
2024-05-27 01:33:06 +01:00
spi-rspi.c
spi: rspi: Get rid of unused struct rspi_plat_data
2024-03-25 17:18:22 +00:00
spi-rzv2m-csi.c
spi: rzv2m-csi: Add target mode support
2023-10-09 13:14:28 +01:00
spi-s3c64xx.c
spi: spi-s3c64xx.c: Remove of_node_put for auto cleanup
2024-04-24 10:27:16 +09:00
spi-sc18is602.c
spi: sc18is602: switch to use modern name
2023-08-21 14:29:33 +01:00
spi-sh-hspi.c
spi: sh-hspi: switch to use modern name
2023-08-21 14:29:34 +01:00
spi-sh-msiof.c
spi: sh-msiof: avoid integer overflow in constants
2024-01-30 15:27:21 +00:00
spi-sh-sci.c
spi: bitbang: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:48 +00:00
spi-sh.c
spi: sh: switch to use modern name
2023-08-21 14:29:37 +01:00
spi-sifive.c
spi: sifive: switch to use modern name
2023-08-21 14:29:38 +01:00
spi-slave-mt27xx.c
spi: slave-mt27xx: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:53 +00:00
spi-slave-system-control.c
…
spi-slave-time.c
…
spi-sn-f-ospi.c
spi: spi-sn-f-ospi: switch to use modern name
2023-08-21 14:29:39 +01:00
spi-sprd-adi.c
spi: sprd-adi: switch to use spi_alloc_host()
2023-12-11 12:54:53 +00:00
spi-sprd.c
spi: sprd: switch to use modern name
2023-12-11 12:54:53 +00:00
spi-st-ssc4.c
spi: st-ssc4: switch to use modern name
2023-12-11 12:54:54 +00:00
spi-stm32-qspi.c
spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4
2024-06-18 14:48:26 +01:00
spi-stm32.c
spi: stm32: Don't warn about spurious interrupts
2024-05-29 19:12:09 +01:00
spi-sun4i.c
spi: sun4i: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:30 +09:00
spi-sun6i.c
spi: sun6i: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:31 +09:00
spi-sunplus-sp7021.c
spi: sunplus-sp7021: switch to use modern name
2023-12-11 12:54:59 +00:00
spi-synquacer.c
spi: synquacer: switch to use modern name
2023-12-11 12:55:00 +00:00
spi-tegra20-sflash.c
spi: tegra20-sflash: switch to use modern name
2023-12-11 12:55:03 +00:00
spi-tegra20-slink.c
spi: tegra20-slink: switch to use modern name
2023-12-11 12:55:04 +00:00
spi-tegra114.c
spi: tegra114: switch to use modern name
2023-12-11 12:55:02 +00:00
spi-tegra210-quad.c
spi: tegra210-quad: switch to use modern name
2023-12-11 12:55:05 +00:00
spi-test.h
…
spi-ti-qspi.c
spi: spi-ti-qspi: switch to use modern name
2023-12-11 12:55:06 +00:00
spi-tle62x0.c
…
spi-topcliff-pch.c
spi: topcliff-pch: switch to use modern name
2023-12-11 12:55:07 +00:00
spi-uniphier.c
spi: uniphier: switch to use modern name
2023-12-11 12:55:08 +00:00
spi-wpcm-fiu.c
spi: wpcm-fiu: differentiate between unsupported and invalid requests
2024-05-27 01:33:06 +01:00
spi-xcomm.c
spi: xcomm: fix coding style
2024-07-05 18:47:46 +01:00
spi-xilinx.c
spi: bitbang: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:48 +00:00
spi-xlp.c
spi: xlp: use 'time_left' variable with wait_for_completion_timeout()
2024-04-30 23:57:32 +09:00
spi-xtensa-xtfpga.c
spi: bitbang: Follow renaming of SPI "master" to "controller"
2024-02-08 11:54:48 +00:00
spi-zynq-qspi.c
spi: zynq-qspi: switch to use modern name
2023-12-11 12:55:13 +00:00
spi-zynqmp-gqspi.c
spi: zynqmp-gqspi: switch to use modern name
2023-12-11 12:55:14 +00:00
spi.c
Merge tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2024-07-25 10:42:22 -07:00
spidev.c
spi: spidev: add correct compatible for Rohm BH2228FV
2024-07-18 11:17:09 +01:00