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linux/drivers/spi
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Marek Vasut 53ca18acbe
spi: imx: mx51-ecspi: Fix low-speed CONFIGREG delay calculation 
The spi_imx->spi_bus_clk may be uninitialized and thus also zero in
mx51_ecspi_prepare_message(), which would lead to division by zero
in kernel. Since bitbang .setup_transfer callback which initializes
the spi_imx->spi_bus_clk is called after bitbang prepare_message
callback, iterate over all the transfers in spi_message, find the
one with lowest bus frequency, and use that bus frequency for the
delay calculation.

Note that it is not possible to move this CONFIGREG delay back into
the .setup_transfer callback, because that is invoked too late, after
the GPIO chipselects were already configured.

Fixes: 135cbd378eab ("spi: imx: mx51-ecspi: Reinstate low-speed CONFIGREG delay")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210726100102.5188-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-07-26 18:57:14 +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: stm32-qspi: Fix W=1 build warning
2021-06-04 15:27:11 +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: Remove redundant dev_err call in dfl_spi_altera_probe()
2021-05-11 10:06:53 +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: set number of chipselect lines
2021-05-24 09:51:38 +01:00
spi-atmel.c
spi: atmel: Fix CS and initialization bug
2021-07-11 23:44:39 +01:00
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: delete repeated words in comments
2021-05-10 13:07:52 +01:00
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: 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: Disable Auto-HW polling
2021-07-16 19:02:49 +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-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: 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: delete repeated words in comments
2021-05-10 13:07:52 +01:00
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: Cleanup on failure of initial setup
2021-06-01 14:03:12 +01:00
spi-fsl-spi.h
…
spi-geni-qcom.c
spi: delete repeated words in comments
2021-05-10 13:07:52 +01:00
spi-gpio.c
spi: gpio: Don't leak SPI master in probe error path
2020-12-07 14:18:54 +00:00
spi-hisi-kunpeng.c
spi: hisi-kunpeng: Add debugfs support
2021-06-07 16:24:12 +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
spi: imx: mx51-ecspi: Fix low-speed CONFIGREG delay calculation
2021-07-26 18:57:14 +01:00
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: 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: spi-mem: fix doc warning in spi-mem.c
2021-06-14 15:05:00 +01:00
spi-meson-spicc.c
spi: meson-spicc: fix memory leak in meson_spicc_remove
2021-07-22 16:02:22 +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-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: add parenthesis for sizeof
2021-05-20 18:00:35 +01:00
spi-mt65xx.c
spi: mediatek: move devm_spi_register_master position
2021-07-14 13:29:06 +01:00
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: Add module info needed for autoloading
2021-07-22 12:40:06 +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: Use SPI_MODE_X_MASK
2021-05-11 15:42:48 +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: 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: 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: delete repeated words in comments
2021-05-10 13:07:52 +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
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-pxa2xx.h
spi: pxa2xx: Fix style of and typos in the comments and messages
2021-05-18 14:05:35 +01:00
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.c
spi: rockchip: Support SPI_CS_HIGH
2021-06-23 12:35:43 +01:00
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: spi-rspi: : use proper DMAENGINE API for termination
2021-06-23 16:33:52 +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-sh-msiof.c
spi: spi-sh-msiof: : use proper DMAENGINE API for termination
2021-06-23 16:33:53 +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-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: Remove unused qspi field of struct stm32_qspi_flash
2021-06-15 12:51:55 +01:00
spi-stm32.c
spi: stm32: fixes pm_runtime calls in probe/remove
2021-07-07 17:33:52 +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 an error message
2021-05-10 13:17:18 +01:00
spi-tegra210-quad.c
spi: tegra210-quad: Fix an error message
2021-05-10 13:17:19 +01:00
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 potential double free in pch_spi_process_messages()
2021-05-10 13:17:16 +01:00
spi-uniphier.c
spi: uniphier: Use SPI_MODE_X_MASK
2021-05-11 15:42:52 +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: 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: update modalias_show after of_device_uevent_modalias support
2021-07-22 16:02:23 +01:00
spidev.c
spi: spidev: Use SPI_MODE_X_MASK
2021-05-11 15:42:47 +01:00