microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
WSL2-Linux-Kernel/drivers/spi
История
Frieder Schrempf 5d66eadc1c spi: spi-imx: Fix spi_bus_clk if requested clock is higher than input clock 
[ Upstream commit db2d2dc9a0 ]

In case the requested bus clock is higher than the input clock, the correct
dividers (pre = 0, post = 0) are returned from mx51_ecspi_clkdiv(), but
*fres is left uninitialized and therefore contains an arbitrary value.

This causes trouble for the recently introduced PIO polling feature as the
value in spi_imx->spi_bus_clk is used there to calculate for which
transfers to enable PIO polling.

Fix this by setting *fres even if no clock dividers are in use.

This issue was observed on Kontron BL i.MX8MM with an SPI peripheral clock set
to 50 MHz by default and a requested SPI bus clock of 80 MHz for the SPI NOR
flash.

With the fix applied the debug message from mx51_ecspi_clkdiv() now prints the
following:

spi_imx 30820000.spi: mx51_ecspi_clkdiv: fin: 50000000, fspi: 50000000,
post: 0, pre: 0

Fixes: 6fd8b8503a ("spi: spi-imx: Fix out-of-order CS/SCLK operation at low speeds")
Fixes: 07e7593877 ("spi: spi-imx: add PIO polling support")
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: David Jander <david@protonic.nl>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Marek Vasut <marex@denx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20221115181002.2068270-1-frieder@fris.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-12-08 11:28:38 +01:00
..
Kconfig spi: rockchip-sfc: add rockchip serial flash controller 2021-08-17 13:36:04 +01:00
Makefile spi: rockchip-sfc: add rockchip serial flash controller 2021-08-17 13:36:04 +01:00
atmel-quadspi.c spi: atmel-quadspi: Fix the buswidth adjustment between spi-mem and controller 2022-04-27 14:39:02 +02:00
internals.h
…
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: spi-altera-dfl: Fix an error handling path 2022-08-17 14:23:06 +02:00
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: Limit max transfer and message size 2022-07-21 21:24:16 +02:00
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: change clk_disable_unprepare to clk_unprepare 2021-12-29 12:28:39 +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 PDC transfer setup bug 2021-10-01 19:34:55 +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-bcm-qspi.c spi: bcm-qspi: fix MSPI only access with bcm_qspi_exec_mem_op() 2022-04-13 20:59:19 +02:00
spi-bcm-qspi.h
…
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: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers 2022-07-29 17:25:24 +02:00
spi-bcm2835aux.c spi: bcm2835aux: use 'unsigned int' instead of 'unsigned' 2021-08-03 18:27:25 +01:00
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: fix Direct Access Mode disable for SoCFPGA 2022-06-09 10:22:53 +02:00
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-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: Fix reference leak to master 2021-04-09 13:43:57 +01:00
spi-dw-bt1.c spi: dw: Fix PM disable depth imbalance in dw_spi_bt1_probe 2022-10-26 12:34:45 +02:00
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-dma: decrease reference count in dw_spi_dma_init_mfld() 2022-12-02 17:41:03 +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: 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: Reduce max transfer size to 8 bytes 2021-07-19 16:56:14 +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: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware() 2021-04-09 13:43:59 +01:00
spi-fsl-qspi.c spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname() 2022-06-09 10:22:55 +02:00
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: spi-geni-qcom: Remove confusing comment about setting the watermark 2021-07-14 16:37:58 +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: Fix the debugfs directory name incorrect 2022-01-27 11:03:12 +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 pm_runtime_get_sync() error checking 2022-06-09 10:22:48 +02:00
spi-imx.c spi: spi-imx: Fix spi_bus_clk if requested clock is higher than input clock 2022-12-08 11:28:38 +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: do not rely on busy flag in pow2 clk ops 2022-10-26 12:34:42 +02:00
spi-meson-spifc.c spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe 2022-01-27 11:03:59 +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: support tick_delay without enhance_timing 2022-04-08 14:24:15 +02:00
spi-mt7621.c spi: mt7621: Fix an error message in mt7621_spi_probe() 2022-10-26 12:34:40 +02:00
spi-mtk-nor.c spi: spi-mtk-nor: initialize spi controller after resume 2022-04-27 14:38:52 +02:00
spi-mux.c spi-mux: Fix false-positive lockdep splats 2021-10-14 13:32:19 +01:00
spi-mxic.c spi: mxic: Fix the transmit path 2022-04-08 14:22:53 +02:00
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-omap-100k.c spi/omap100k:Fix PM disable depth imbalance in omap1_spi100k_probe 2022-10-26 12:34:46 +02:00
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-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-orion.c spi: orion: Prevent incorrect chip select behaviour 2021-08-16 13:28:14 +01:00
spi-pic32-sqi.c
…
spi-pic32.c spi: spi-pic32: Fix issue with uninitialized dma_slave_config 2021-08-10 13:22:20 +01:00
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-pci: Balance reference count for PCI DMA device 2022-04-08 14:23:07 +02:00
spi-pxa2xx.c spi: pxa2xx: Adapt reset_sccr1() to the case when no message available 2021-07-22 12:41:19 +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: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime() 2022-10-26 12:34:42 +02:00
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: fix missing error on unsupported SPI_CS_HIGH 2022-06-09 10:22:50 +02:00
spi-rpc-if.c spi: spi-rpc-if: Check return value of rpcif_sw_init() 2021-11-18 19:16:42 +01:00
spi-rspi.c spi: spi-rspi: Fix PIO fallback on RZ platforms 2022-08-17 14:23:05 +02:00
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: Fix large transfers with DMA 2022-10-26 12:34:47 +02:00
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: 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: 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 wait_cmd timeout in APM mode 2022-06-09 10:22:36 +02:00
spi-stm32.c spi: stm32: fix stm32_spi_prepare_mbr() that halves spi clk for every run 2022-12-02 17:41:01 +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: Fix chipselect/clock bug 2021-06-23 11:48:36 +01:00
spi-synquacer.c spi: synquacer: Add missing clk_disable_unprepare() 2022-08-17 14:23:03 +02:00
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 UAF in tegra_slink_remove() 2022-08-17 14:23:12 +02:00
spi-tegra114.c spi: tegra114: Add missing IRQ check in tegra_spi_probe 2022-04-08 14:23:05 +02:00
spi-tegra210-quad.c spi: tegra210-quad: Fix missin IRQ check in tegra_qspi_probe 2022-04-08 14:23:06 +02:00
spi-test.h
…
spi-ti-qspi.c spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout 2022-06-09 10:22:46 +02:00
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: fix reference count leak in uniphier_spi_probe() 2022-02-08 18:34:08 +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 a NULL pointer dereference in zynq_qspi_exec_mem_op() 2022-03-02 11:48:01 +01:00
spi-zynqmp-gqspi.c spi: spi-zynqmp-gqspi: Handle error for dma_set_mask 2022-04-08 14:23:07 +02:00
spi.c spi: Ensure that sg_table won't be used after being freed 2022-10-26 12:34:48 +02:00
spidev.c spi: spidev: Add SPI ID table 2021-09-27 12:59:15 +01:00