AuxXxilium/linux_dsm_epyc7002
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1a89ac5b91
linux_dsm_epyc7002/drivers/spi
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Sowjanya Komatineni 1a89ac5b91
spi: tegra114: fix for unpacked mode transfers 
Fixes: computation of actual bytes to fill/receive in/from FIFO in unpacked
mode when transfer length is not a multiple of requested bits per word.

unpacked mode transfers fails when the transfer includes partial bytes in
the last word.

Total words to be written/read to/from FIFO is computed based on transfer
length and bits per word. Unpacked mode includes 0 padding bytes for partial
words to align with bits per word and these extra bytes are also accounted
for calculating bytes left to transfer in the current driver.

This causes extra bytes access of tx/rx buffers along with buffer index
position crossing actual length where remain_len becomes negative and due to
unsigned type, negative value is a 32 bit representation of signed value
and transferred bytes never meets the actual transfer length resulting in
transfer timeout and a hang.

This patch fixes this with proper computation of the actual bytes to fill in
FIFO during transmit and the actual bytes to read from FIFO during receive
ignoring 0 padded bytes.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-01 15:25:24 +07:00
..
atmel-quadspi.c spi: atmel-quadspi: add support for sam9x60 qspi controller 2019-02-06 17:21:00 +00:00
internals.h spi: Add an helper to flush the message queue 2018-04-23 15:48:18 +01:00
Kconfig spi: sifive: Add driver for the SiFive SPI controller 2019-02-19 15:28:53 +00:00
Makefile spi: sifive: Add driver for the SiFive SPI controller 2019-02-19 15:28:53 +00:00
spi-altera.c spi: altera: Consolidate TX/RX data register access 2017-08-16 11:53:31 +01:00
spi-armada-3700.c Merge remote-tracking branches 'spi/topic/a3700', 'spi/topic/atmel', 'spi/topic/bcm53xx', 'spi/topic/davinci' and 'spi/topic/dw' into spi-next 2018-01-26 17:57:24 +00:00
spi-at91-usart.c spi: fix spi-at91-usart.c build errors when PINCTRL is not set 2018-12-03 11:57:14 +00:00
spi-ath79.c spi: ath79: Remove now useless code 2019-01-17 12:34:55 +00:00
spi-atmel.c spi-atmel: support inter-word delay 2019-01-30 23:02:11 +00:00
spi-au1550.c
spi-axi-spi-engine.c spi: spi-axi: fix potential use-after-free after deregistration 2017-10-31 11:15:10 +00:00
spi-bcm63xx-hsspi.c spi/bcm63xx-hsspi: keep pll clk enabled 2018-09-18 09:16:34 -07:00
spi-bcm63xx.c spi/bcm63xx: fix error return code in bcm63xx_spi_probe() 2017-08-08 11:36:35 +01:00
spi-bcm2835.c spi: bcm2835: Synchronize with callback on DMA termination 2018-12-04 16:51:55 +00:00
spi-bcm2835aux.c spi: bcm2835aux: remove unneeded NULL check of devm_clk_get 2019-01-23 10:31:21 +00:00
spi-bcm-qspi.c spi: bcm-qspi: switch back to reading flash using smaller chunks 2018-10-11 15:00:34 +01:00
spi-bcm-qspi.h
spi-bitbang-txrx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spi-bitbang.c spi: bitbang: Don't call chipselect() in spi_bitbang_setup() 2019-01-17 12:34:14 +00:00
spi-brcmstb-qspi.c
spi-butterfly.c spi: add flags parameter to txrx_word function pointers 2018-08-01 14:50:24 +01:00
spi-cadence.c spi: cadence: Fix default polarity of native chipselect 2019-01-24 19:03:11 +00:00
spi-cavium-octeon.c
spi-cavium-thunderx.c
spi-cavium.c
spi-cavium.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spi-clps711x.c spi: clps711x: Convert to use CS GPIO descriptors 2019-01-09 12:41:58 +00:00
spi-coldfire-qspi.c
spi-davinci.c spi: davinci: Get rid of dangling variable 2019-01-10 11:54:13 +00:00
spi-dln2.c
spi-dw-mid.c spi: dw: Convert to generalized SPI controller API 2018-02-12 12:04:16 +00:00
spi-dw-mmio.c spi: dw: Convert to use CS GPIO descriptors 2019-01-09 12:42:18 +00:00
spi-dw-pci.c
spi-dw.c Merge branch 'for-5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1 2019-02-20 17:58:18 +00:00
spi-dw.h dw: spi: add support for Amazon's Alpine spi controller 2018-10-11 15:11:04 +01:00
spi-efm32.c
spi-ep93xx.c spi: spi-ep93xx: Use dma_data_direction for ep93xx_spi_dma_{finish,prepare} 2018-10-09 00:11:28 +01:00
spi-falcon.c spi: spi-falcon: drop check of boot select 2017-09-01 11:33:22 +01:00
spi-fsl-cpm.c
spi-fsl-cpm.h
spi-fsl-dspi.c Merge branch 'for-5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1 2019-02-20 17:58:18 +00:00
spi-fsl-espi.c spi: Do not print a message if spi_controller_{suspend,resume}() fails 2018-09-05 12:38:27 +01:00
spi-fsl-lib.c
spi-fsl-lib.h
spi-fsl-lpspi.c spi: lpspi: fix dataloss when SS is inactivated between every words 2019-03-21 15:02:28 +00:00
spi-fsl-qspi.c spi: spi-mem: spi-fsl-qspi: typo fix in author name 2019-01-29 12:12:03 +00:00
spi-fsl-spi.c Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next 2017-04-26 15:58:04 +01:00
spi-fsl-spi.h
spi-geni-qcom.c spi: spi-geni-qcom: Get rid of forward declaration 2019-01-14 12:24:05 +00:00
spi-gpio.c spi: gpio: Advertise support for SPI_CS_HIGH 2019-02-12 16:41:10 +00:00
spi-img-spfi.c spi: img-spfi: Set device select bits for SPFI port state 2018-07-30 16:31:54 +01:00
spi-imx.c spi: imx: stop buffer overflow in RX FIFO flush 2019-03-13 15:16:24 +00:00
spi-iproc-qspi.c
spi-jcore.c spi: jcore: disable ref_clk after getting its rate 2018-03-18 17:57:42 -07:00
spi-lantiq-ssc.c Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next 2017-04-26 15:58:04 +01:00
spi-lm70llp.c spi: add flags parameter to txrx_word function pointers 2018-08-01 14:50:24 +01:00
spi-loopback-test.c spi: loopback-test: implement testing with no CS 2017-07-26 13:08:56 +01:00
spi-lp8841-rtc.c
spi-mem.c Merge branch 'for-5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1 2019-02-20 17:58:18 +00:00
spi-meson-spicc.c spi: meson-spicc: Fix error handling in meson_spicc_probe() 2018-05-02 05:59:21 +09:00
spi-meson-spifc.c
spi-mpc52xx-psc.c
spi-mpc52xx.c spi: mpc52xx: Use gpio_is_valid() 2018-04-27 12:05:39 +01:00
spi-mpc512x-psc.c
spi-mt65xx.c spi: mediatek: add spi support for mt7629 IC 2018-11-27 14:17:20 +00:00
spi-mxic.c spi: Add MXIC controller driver 2018-11-05 11:55:06 +00:00
spi-mxs.c spi: mxs: add tracing to custom .transfer_one_message callback 2019-01-29 15:08:58 +00:00
spi-npcm-pspi.c spi: npcm-pspi: Fix wrong priv pointer 2019-01-03 12:27:17 +00:00
spi-nuc900.c
spi-nxp-fspi.c spi: spi-mem: spi-nxp-fspi: add module license info 2019-01-29 11:55:41 +00:00
spi-oc-tiny.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
spi-omap2-mcspi.c spi: omap2-mcspi: Fix DMA and FIFO event trigger size mismatch 2019-01-15 13:17:04 +00:00
spi-omap-100k.c
spi-omap-uwire.c
spi-orion.c spi: orion: cosmetics - alias long direct_access variables 2018-09-03 15:14:18 +01:00
spi-pic32-sqi.c spi: pic32-sqi: don't pass GFP_DMA32 to dma_alloc_coherent 2018-10-17 11:11:32 +01:00
spi-pic32.c spi: pic32: fix dma channels termination 2019-04-01 15:24:47 +07:00
spi-pl022.c spi: pl022: add a message state STATE_TIMEOUT for timeout transfer 2019-01-28 18:23:04 +00:00
spi-ppc4xx.c
spi-pxa2xx-dma.c pxa2xx: replace spi_master with spi_controller 2019-01-23 10:59:56 +00:00
spi-pxa2xx-pci.c pxa2xx: replace spi_master with spi_controller 2019-01-23 10:59:56 +00:00
spi-pxa2xx.c Merge branch 'for-5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1 2019-02-20 17:58:18 +00:00
spi-pxa2xx.h pxa2xx: replace spi_master with spi_controller 2019-01-23 10:59:56 +00:00
spi-qcom-qspi.c spi: spi-qcom-qspi: Fix remaining driver nits 2018-11-22 14:38:13 +00:00
spi-qup.c spi: qup: fix 64-bit build warning 2017-08-10 15:50:23 +01:00
spi-rb4xx.c spi: rb4xx: Use SPI_BPW_MASK to set bits_per_word_mask 2018-10-10 12:48:06 +01:00
spi-rockchip.c spi: rockchip: support lsb-first mode 2018-11-05 11:42:43 +00:00
spi-rspi.c spi: rspi: Fix sequencer reset during initialization 2019-03-15 16:32:19 +00:00
spi-s3c24xx-fiq.h
spi-s3c24xx-fiq.S
spi-s3c24xx.c
spi-s3c64xx.c spi: spi-s3c64xx: Fix system resume support 2018-05-17 13:27:08 +09:00
spi-sc18is602.c
spi-sh-hspi.c spi: sh-hspi: Replace spi_master by spi_controller 2019-02-08 13:04:19 +00:00
spi-sh-msiof.c spi: sh-msiof: Restrict bits per word to 8/16/24/32 on R-Car Gen2/3 2019-03-04 00:02:28 +00:00
spi-sh-sci.c spi: add flags parameter to txrx_word function pointers 2018-08-01 14:50:24 +01:00
spi-sh.c spi: use SPDX identifier for Renesas drivers 2018-08-28 20:32:00 +01:00
spi-sifive.c spi: sifive: Remove redundant dev_err call in sifive_spi_probe() 2019-02-22 15:17:58 +00:00
spi-sirf.c spi: sirf: account for const type of of_device_id.data 2018-01-03 11:38:46 +00:00
spi-slave-mt27xx.c spi: mediatek: add spi slave for Mediatek MT2712 2018-09-28 14:29:14 +01:00
spi-slave-system-control.c spi: slave: Fix missing break in switch 2018-10-03 16:23:10 +01:00
spi-slave-time.c spi: slave: Add SPI slave handler reporting uptime at previous message 2017-05-26 13:12:04 +01:00
spi-sprd-adi.c spi: sprd: Change to use devm_hwspin_lock_request_specific() 2018-06-26 13:52:27 -07:00
spi-sprd.c Merge branch 'for-5.0' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1 2019-02-20 17:58:18 +00:00
spi-st-ssc4.c spi: st-ssc4: whitespace cleanup 2017-05-26 12:41:07 +01:00
spi-stm32-qspi.c spi: spi-mem: stm32-qspi: avoid memory corruption at low frequency 2019-03-15 16:32:33 +00:00
spi-stm32.c spi: stm32: add support for STM32F4 2019-01-07 18:25:48 +00:00
spi-sun4i.c spi: sun4i: disable clocks in the remove function 2017-12-07 11:59:15 +00:00
spi-sun6i.c spi: sun6i: disable/unprepare clocks on remove 2017-12-07 17:45:17 +00:00
spi-tegra20-sflash.c spi: tegra20-sflash: explicitly request exclusive reset control 2017-07-19 17:06:31 +01:00
spi-tegra20-slink.c spi: tegra20-slink: change chip select action order 2019-03-27 12:33:33 +00:00
spi-tegra114.c spi: tegra114: fix for unpacked mode transfers 2019-04-01 15:25:24 +07:00
spi-test.h
spi-ti-qspi.c spi: ti-qspi: Fix mmap read when more than one CS in use 2019-01-29 12:08:03 +00:00
spi-tle62x0.c
spi-topcliff-pch.c spi : spi-topcliff-pch: Fix to handle empty DMA buffers 2019-03-18 12:14:33 +00:00
spi-txx9.c
spi-uniphier.c spi: uniphier: remove unnecessary include headers 2018-08-02 11:08:06 +01:00
spi-xcomm.c
spi-xilinx.c spi: xilinx: Add support for xlnx,axi-quad-spi-1.00.a 2017-11-27 16:31:20 +00:00
spi-xlp.c spi: xlp: fix error return code in xlp_spi_probe() 2017-08-08 11:36:07 +01:00
spi-xtensa-xtfpga.c spi: add flags parameter to txrx_word function pointers 2018-08-01 14:50:24 +01:00
spi-zynqmp-gqspi.c spi: spi-zynqmp-gqspi: simplify getting .driver_data 2018-11-05 11:54:35 +00:00
spi.c spi: Fix zero length xfer bug 2019-03-11 16:40:00 +00:00
spidev.c spi: spidev: Fix OF tree warning logic 2018-10-10 13:46:54 +01:00