Geert Uytterhoeven 9854881c22 spi: sh-msiof: Avoid writing to registers from spi_master.setup() ...

[ Upstream commit 7ff0b53c40 ]

The spi_master.setup() callback must not change configuration registers,
as that could corrupt I/O that is in progress for other SPI slaves.

The only exception is the configuration of the native chip select
polarity in SPI master mode, as a wrong chip select polarity will cause
havoc during all future transfers to any other SPI slave.

Hence stop writing to registers in sh_msiof_spi_setup(), unless it is
the first call for a controller using a native chip select, or unless
native chip select polarity has changed (note that you'll loose anyway
if I/O is in progress).  Even then, only do what is strictly necessary,
instead of calling sh_msiof_spi_set_pin_regs().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-03-24 11:01:22 +01:00

..

Kconfig

Merge remote-tracking branches 'spi/topic/pxa', 'spi/topic/pxa2xx', 'spi/topic/qup', 'spi/topic/rockchip' and 'spi/topic/sh' into spi-next

2017-09-04 15:51:26 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

spi-adi-v3.c

…

spi-altera.c

spi: altera: Consolidate TX/RX data register access

2017-08-16 11:53:31 +01:00

spi-armada-3700.c

spi: a3700: Fix clk prescaling for coefficient over 15

2017-12-29 17:53:47 +01:00

spi-ath79.c

spi/ath79: Fix checkpatch warnings

2017-07-17 12:09:38 +01:00

spi-atmel.c

spi: atmel: fixed spin_lock usage inside atmel_spi_remove

2018-03-03 10:24:25 +01:00

spi-au1550.c

spi: au1550: Simplify au1550_spi_setupxfer()

2015-09-16 20:54:54 +01:00

spi-axi-spi-engine.c

spi: spi-axi: fix potential use-after-free after deregistration

2017-12-10 13:40:39 +01:00

spi-bcm53xx.c

spi: bcm53xx: (re)license code to the GPL v2

2017-01-06 18:21:50 +00:00

spi-bcm53xx.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

spi-bcm63xx-hsspi.c

Merge remote-tracking branches 'spi/topic/altera', 'spi/topic/at79', 'spi/topic/bcm-qspi', 'spi/topic/bcm63xx' and 'spi/topic/bcm63xx-hspi' into spi-next

2017-09-04 15:51:14 +01:00

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: Remove unnecessary workaround to call gpio_set_value

2016-02-15 20:43:39 +00:00

spi-bcm2835aux.c

Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next

2016-03-11 14:28:25 +07:00

spi-bcm-qspi.c

spi: bcm-qspi: Fix use after free in bcm_qspi_probe() in error path

2017-10-12 09:26:23 +01:00

spi-bcm-qspi.h

spi: iproc-qspi: Add Broadcom iProc SoCs support

2016-09-24 20:03:25 +01:00

spi-bfin5xx.c

spi: spi-bfin5xx: Remove deprecated create_singlethread_workqueue

2016-07-03 14:14:31 +02:00

spi-bfin-sport.c

spi: spi-bfin-sport: Remove deprecated create_singlethread_workqueue

2016-07-03 14:24:31 +02:00

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: switch to the generic implementation of transfer_one_message

2015-10-05 14:55:56 +01:00

spi-brcmstb-qspi.c

spi: brcmstb-qspi: Broadcom settop platform driver

2016-09-14 18:03:32 +01:00

spi-butterfly.c

spi: butterfly: use new parport device model

2015-12-02 19:38:16 +00:00

spi-cadence.c

spi: cadence: Add support for context loss

2017-08-08 10:43:41 +01:00

spi-cavium-octeon.c

spi: octeon: Split driver into Octeon specific and common parts

2016-07-24 21:54:29 +01:00

spi-cavium-thunderx.c

spi: spi-cavium-thunderx: Add missing clk_disable_unprepare()

2016-08-24 12:37:43 +01:00

spi-cavium.c

spi: octeon: Split driver into Octeon specific and common parts

2016-07-24 21:54:29 +01:00

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: Driver refactor

2016-07-07 11:44:43 +02:00

spi-coldfire-qspi.c

spi: spi-coldfire-qspi: enable RuntimePM before registering to the core

2015-10-12 17:02:08 +01:00

spi-davinci.c

spi: davinci: Handle return value of clk_prepare_enable

2017-06-06 19:36:45 +01:00

spi-dln2.c

spi: Drop duplicate code to set master->dev.parent

2016-04-26 11:56:09 +01:00

spi-dw-mid.c

spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)

2017-01-04 12:27:00 +00:00

spi-dw-mmio.c

spi: dw: Disable clock after unregistering the host

2017-04-18 19:16:49 +01:00

spi-dw-pci.c

spi: dw-pci: Spelling s/paltforms/platforms/g

2016-05-11 18:26:19 +01:00

spi-dw.c

spi: dw: Make debugfs use bus num and make irq name unique

2017-01-09 11:22:14 +00:00

spi-dw.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

spi-efm32.c

…

spi-ep93xx.c

spi: spi-ep93xx: use the default master transfer queueing mechanism

2017-08-09 17:53:14 +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

QE: Move QE from arch/powerpc to drivers/soc

2015-12-22 17:12:56 -06:00

spi-fsl-cpm.h

…

spi-fsl-dspi.c

spi: spi-fsl-dspi: ensure non-zero return on error path

2017-05-22 16:14:22 +01:00

spi-fsl-espi.c

spi: fsl-espi: fix ioread16/iowrite16 endianness

2016-12-01 18:50:59 +00:00

spi-fsl-lib.c

spi: fsl-(e)spi: simplify cleanup code

2015-08-28 18:15:18 +01:00

spi-fsl-lib.h

spi: fsl-espi: separate fsl-espi from fsl-lib completely

2016-11-14 11:21:48 +00:00

spi-fsl-lpspi.c

spi: fsl-lpspi: fix indentation error

2017-01-09 19:34:02 +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-gpio.c

Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next

2015-02-08 11:16:46 +08:00

spi-img-spfi.c

spi: img-spfi: Remove spi_master_put in img_spfi_remove()

2016-07-27 19:00:16 +01:00

spi-imx.c

spi: imx: do not access registers while clocks disabled

2018-02-03 17:39:23 +01:00

spi-iproc-qspi.c

spi: iproc-qspi: Add Broadcom iProc SoCs support

2016-09-24 20:03:25 +01:00

spi-jcore.c

spi: jcore: Fix module autoload for OF registration

2016-11-23 16:42:20 +00:00

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: lm70llp: remove printk

2015-12-07 20:09:09 +00:00

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: lp-8841: return correct error code from probe

2016-02-26 11:06:38 +09:00

spi-meson-spicc.c

spi: Add Meson SPICC driver

2017-05-24 18:19:25 +01:00

spi-meson-spifc.c

spi: meson: Add GXBB compatible

2016-09-12 20:11:39 +01:00

spi-mpc52xx-psc.c

spi: spi-mpc52xx-psc: Remove deprecated create_singlethread_workqueue

2016-07-03 14:23:25 +02:00

spi-mpc52xx.c

spi/mpc52xx: Combine substrings for two messages

2017-01-17 18:28:19 +00:00

spi-mpc512x-psc.c

spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally

2015-09-17 12:33:31 +01:00

spi-mt65xx.c

spi: mediatek: add spi support for mt2712 IC

2017-06-20 13:39:14 +01:00

spi-mxs.c

spi: mxs: cleanup wait_for_completion return handling

2015-02-05 18:04:57 +00:00

spi-nuc900.c

…

spi-oc-tiny.c

spi: oc-tiny: Use of_property_read_u32 instead of open-coding it

2015-09-16 19:16:01 +01:00

spi-omap2-mcspi.c

spi: omap: Allocate bus number from spi framework

2017-08-18 12:15:41 +01:00

spi-omap-100k.c

spi: omap-100k: Rely on validations done by spi core

2015-09-17 12:34:20 +01:00

spi-omap-uwire.c

spi: omap-uwire: Remove needless bits_per_word and speed_hz tests

2015-09-17 12:33:58 +01:00

spi-orion.c

spi: Convert to using %pOF instead of full_name

2017-07-19 11:56:23 +01:00

spi-pic32-sqi.c

spi: pic32-sqi: use list_move_tail and list_move

2016-08-08 11:56:40 +01:00

spi-pic32.c

spi: pic32: fix spelling mistakes on macro names

2017-07-26 13:04:21 +01:00

spi-pl022.c

spi: pl022: constify amba_id

2017-08-23 17:12:05 +01:00

spi-ppc4xx.c

spi/ppc4xx: Use kcalloc() in spi_ppc4xx_of_probe()

2017-01-17 18:34:25 +00:00

spi-pxa2xx-dma.c

spi: pxa2xx: Remove pointer to chip data from driver data

2016-09-12 20:01:27 +01:00

spi-pxa2xx-pci.c

spi: pca2xx-pci: Allow MSI

2017-01-23 18:09:37 +00:00

spi-pxa2xx.c

spi: pxa2xx: Convert to GPIO descriptor API where possible

2017-08-04 12:41:55 +01:00

spi-pxa2xx.h

spi: pxa2xx: Convert to GPIO descriptor API where possible

2017-08-04 12:41:55 +01:00

spi-qup.c

spi: qup: fix 64-bit build warning

2017-08-10 15:50:23 +01:00

spi-rb4xx.c

spi: rb4xx: Fix checking return value of devm_ioremap_resource()

2015-05-01 17:35:54 +01:00

spi-rockchip.c

spi: rockchip: configure CTRLR1 according to size and data frame

2017-08-16 11:58:23 +01:00

spi-rspi.c

Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/slave' into spi-next

2017-02-19 16:41:05 +00:00

spi-s3c24xx-fiq.h

…

spi-s3c24xx-fiq.S

…

spi-s3c24xx.c

spi: bitbang: Replace spinlock by mutex

2015-09-17 12:13:40 +01:00

spi-s3c64xx.c

Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/slave' into spi-next

2017-02-19 16:41:05 +00:00

spi-sc18is602.c

spi: sc18is602: Add OF device ID table

2017-02-22 10:50:09 -08:00

spi-sh-hspi.c

spi: Remove FSF mailing addresses

2014-12-22 15:32:42 +00:00

spi-sh-msiof.c

spi: sh-msiof: Avoid writing to registers from spi_master.setup()

2018-03-24 11:01:22 +01:00

spi-sh-sci.c

…

spi-sh.c

spi: spi-sh: fix error return code in spi_sh_probe()

2017-08-09 17:18:06 +01:00

spi-sirf.c

spi: sirf: fix spelling mistake: "registerred" -> "registered"

2017-06-28 20:02:52 +01:00

spi-slave-system-control.c

spi: slave: Add SPI slave handler controlling system state

2017-05-26 13:12:19 +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-st-ssc4.c

spi: st-ssc4: whitespace cleanup

2017-05-26 12:41:07 +01:00

spi-stm32.c

spi: stm32: Fix logical error in stm32_spi_prepare_mbr()

2017-09-13 09:42:27 -07:00

spi-sun4i.c

spi: sun4i: disable clocks in the remove function

2018-02-25 11:08:02 +01:00

spi-sun6i.c

spi: sun6i: disable/unprepare clocks on remove

2018-03-19 08:42:53 +01:00

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: explicitly request exclusive reset control

2017-07-19 17:06:26 +01:00

spi-tegra114.c

spi: tegra114: explicitly request exclusive reset control

2017-07-19 17:06:28 +01:00

spi-test.h

spi: loopback-test: add elapsed time check

2017-03-17 21:54:08 +00:00

spi-ti-qspi.c

Merge remote-tracking branches 'spi/topic/ti-qspi' and 'spi/topic/xlp' into spi-next

2017-04-26 15:58:22 +01:00

spi-tle62x0.c

spi: Drop owner assignment from spi_drivers

2015-10-28 10:30:17 +09:00

spi-topcliff-pch.c

spi/topcliff-pch: Delete an error message for a failed memory allocation in pch_spi_set_tx()

2017-01-17 18:38:02 +00:00

spi-txx9.c

spi: spi-txx9: Add missing clock (un)prepare calls for CCF

2016-08-18 19:10:39 +01:00

spi-xcomm.c

spi: xcomm: Export I2C module alias information

2015-07-31 18:14:57 +01:00

spi-xilinx.c

spi: xilinx: Detect stall with Unknown commands

2017-12-29 17:53:47 +01:00

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: xtensa-xtfpga: fix register endianness

2015-09-22 09:30:10 -07:00

spi-zynqmp-gqspi.c

spi: zynqmp: disable clocks in error paths

2016-05-04 14:21:03 +01:00

spi.c

spi: fix use-after-free at controller deregistration

2017-11-21 09:49:24 +01:00

spidev.c

Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-07-08 10:41:53 -07:00