Merge series from guochun.mao@mediatek.com <guochun.mao@mediatek.com>:
These patches is mainly for adding mt8186 support.
The spi nor controller of mt8186 has some differences,
it needs one more clk, axi_s, for dma feature.
And also needs one extra dummy bit when read flash registers.
This driver has a bunch of custom oldstyle GPIO number-passing
fields and a custom set-up callback.
The good thing is: nothing in the kernel is using it.
Convert the driver to use GPIO descriptors with a SPI_MASTER_GPIO_SS
flag so that the local CS callback also get invoked as the hardware
needs this.
New users of this driver can provide GPIO descriptor tables like
the other converted drivers.
Cc: linux-samsung-soc@vger.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220119000914.192553-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the S3C64xx SPI host to use GPIO descriptors.
Provide GPIO descriptor tables for the one user with CS
0 and 1.
Cc: linux-samsung-soc@vger.kernel.org
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220118230915.157797-3-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
MT8186 needs axi_s clock for DMA feature.
Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Signed-off-by: Zhen Zhang <zhen.zhang@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220118142820.2729-5-guochun.mao@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add compatible mediatek,mt8186-nor implementation.
Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Signed-off-by: Zhen Zhang <zhen.zhang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220118142820.2729-4-guochun.mao@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Define a structure for adding more capabilities.
Add a item extra_dummy_bit for new SoCs, due to design changed.
Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Signed-off-by: Zhen Zhang <zhen.zhang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220118142820.2729-3-guochun.mao@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 61367d0b8f ("spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4")
allowed to properly communicate with the st-gyro-spi even when
there is no tx_buf provided by setting the flag SPI_MASTER_MUST_TX and
thus forcing a dummy TX buffer to work in Full Duplex.
This behavior should kept only for the STM32F4 and not for other
compatible since the STM32H7 do support SIMPLEX_RX and SIMPLEX_TX.
Add the flags variable within the struct stm32_spi_cfg so that flags
used at master registration time are compatible specific.
Fixes: 61367d0b8f ("spi: stm32: Add 'SPI_SIMPLEX_RX', 'SPI_3WIRE_RX' support for stm32f4")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/20220119093245.624878-3-alain.volmat@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Variables 'can_dma' and 'has_startbit' are described within the
struct stm32_spi_cfg comment but have never existed in this structure
so remove them.
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/20220119093245.624878-2-alain.volmat@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Some device driver need to communicate to qspi device during the remove
process, qspi controller must be functional when spi_unregister_master()
is called.
To ensure this, replace devm_spi_register_master() by spi_register_master()
and spi_unregister_master() is called directly in .remove callback before
stopping the qspi controller.
This issue was put in evidence using kernel v5.11 and later
with a spi-nor which supports the software reset feature introduced
by commit d73ee7534c ("mtd: spi-nor: core: perform a Soft Reset on
shutdown")
Fixes: c530cd1d9d ("spi: spi-mem: add stm32 qspi controller")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: <stable@vger.kernel.org> # 5.8.x
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/20220117121744.29729-1-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It's a relatively calm development cycle, but still lots of updates in
the driver side like Intel SOF. Below are some highlights:
* ALSA / ASoC core:
- A new kselftest for ALSA control API
- PCM NO_REWINDS support
- Potential race fixes around control removals
- Unify x86 SG-buffer memory allocation code
- Cleanups and race fixes for ASoC DPCM locking
* ASoC:
- Refinements and cleanups around the delay() APIs
- Wider use of dev_err_probe().
- Continuing cleanups and improvements to the SOF code
- Support for pin switches in simple-card derived cards
- Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel
systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20
S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments
TLV320ADC3xxx
* HD-audio / USB-audio:
- Fix deadlock at HD-audio codec unbinding
- Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec
- Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device
* Misc:
- Fix virmidi drain behavior
Note that the merge of CS35L41 codec support is still half-baked, and
at least one ACPI change is missing. Although this won't hinder the
kernel build itself, we're going to catch up before RC1.
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Merge tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's a relatively calm development cycle, but still lots of updates in
the driver side like Intel SOF. Below are some highlights:
ALSA / ASoC core:
- A new kselftest for ALSA control API
- PCM NO_REWINDS support
- Potential race fixes around control removals
- Unify x86 SG-buffer memory allocation code
- Cleanups and race fixes for ASoC DPCM locking
ASoC:
- Refinements and cleanups around the delay() APIs
- Wider use of dev_err_probe().
- Continuing cleanups and improvements to the SOF code
- Support for pin switches in simple-card derived cards
- Support for AMD Renoir ACP, Asahi Kasei Microdevices AKM4375, Intel
systems using NAU8825 and MAX98390, Mediatek MT8915, nVidia Tegra20
S/PDIF, Qualcomm systems using ALC5682I-VS and Texas Instruments
TLV320ADC3xxx
HD-audio / USB-audio:
- Fix deadlock at HD-audio codec unbinding
- Fixes for Tegra194 HD-audio, new HDA support for CS35L41 codec
- Quirks for Lenovo and HP machines, Gigabyte mobo, Bose device
Misc:
- Fix virmidi drain behavior
Note that the merge of CS35L41 codec support is still half-baked, and
at least one ACPI change is missing. Although this won't hinder the
kernel build itself, we're going to catch up before RC1"
* tag 'sound-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (415 commits)
ALSA: hda: intel-dsp-config: reorder the config table
ALSA: hda: intel-dsp-config: add JasperLake support
ALSA: hda: cs35l41: fix double free on error in probe()
ALSA: hda: Fix dependencies of CS35L41 on SPI/I2C buses
ALSA: hda: Fix dependency on ASoC cs35l41 codec
ASoC: cs35l41: Add support for hibernate memory retention mode
ASoC: cs35l41: Update handling of test key registers
ALSA: intel_hdmi: Check for error num after setting mask
ASoC: wcd9335: Keep a RX port value for each SLIM RX mux
ASoC: amd: acp: acp-mach: Change default RT1019 amp dev id
ALSA: virmidi: Remove duplicated code
ALSA: seq: virmidi: Add a drain operation
ASoC: topology: Fix typo
ASoC: fsl_asrc: refine the check of available clock divider
ASoC: Intel: bytcr_rt5640: Add support for external GPIO jack-detect
ASoC: Intel: bytcr_rt5640: Support retrieving the codec IRQ from the AMCR0F28 ACPI dev
ASoC: rt5640: Add support for boards with an external jack-detect GPIO
ASoC: rt5640: Allow snd_soc_component_set_jack() to override the codec IRQ
ASoC: rt5640: Change jack_work to a delayed_work
ASoC: rt5640: Fix possible NULL pointer deref on resume
...
This has mostly been a quiet release for the SPI subsystem, almost all
cleanups and fixes to existing drivers. A couple of changes that stand
out:
- Cleanups and support for version specific features in the DesignWare
controller.
- Removal of support for Netlogic devices from the XLP driver, the
platform had previously been removed by MIPS so the support couldn't
be used.
- Conversion of several DT bindings to YAML format.
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Merge tag 'spi-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"This has mostly been a quiet release for the SPI subsystem, almost all
cleanups and fixes to existing drivers.
A couple of changes that stand out:
- Cleanups and support for version specific features in the
DesignWare controller.
- Removal of support for Netlogic devices from the XLP driver, the
platform had previously been removed by MIPS so the support
couldn't be used.
- Conversion of several DT bindings to YAML format"
* tag 'spi-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (53 commits)
spi: don't include ptp_clock_kernel.h in spi.h
spi: spi-meson-spifc: Add missing pm_runtime_disable() in meson_spifc_probe
spi: atmel: Fix typo
spi: dt-bindings: mediatek,spi-mtk-nor: Fix example 'interrupts' property
spi: qcom: geni: handle timeout for gpi mode
spi: qcom: geni: set the error code for gpi transfer
spi: spi-mux: Add reference to spi-peripheral-props.yaml schema
spi: ar934x: fix transfer size
spi: pxa2xx: Propagate firmware node
spi: dw: Propagate firmware node
spi: dln2: Propagate firmware node
spi: ar934x: fix transfer and word delays
spi: uniphier: Fix a bug that doesn't point to private data correctly
spi: spi-mtk-nor: add new clock name 'axi' for spi nor
spi: atmel,quadspi: Define sama7g5 QSPI
spi: atmel,quadspi: Convert to json-schema
spi: Fix incorrect cs_setup delay handling
dt-bindings: mtd: spi-nor: Add a reference to spi-peripheral-props.yaml
spi: dt-bindings: cdns,qspi-nor: Move peripheral-specific properties out
spi: dt-bindings: add schema listing peripheral-specific properties
...
There are cleanups and minor bugfixes across several SoC specific
drivers, for Qualcomm, Samsung, NXP i.MX, AT91, Tegra, Keystone,
Renesas, ZynqMP
Noteworthy new features are:
- The op-tee firmware driver gains support for asynchronous
notifications from secure-world firmware.
- Qualcomm platforms gain support for new SoC types in various
drivers: power domain, cache controller, RPM sleep, soc-info
- Samsung SoC drivers gain support for new SoCs in ChipID and PMU,
as well as a new USIv2 driver that handles various types of
serial communiction (uart, i2c, spi)
- Renesas adds support for R-Car S4-8 (R8A779F0) in multiple
drivers, as well as memory controller support for RZ/G2L
(R9A07G044).
- Apple M1 gains support for the PMGR power management driver
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Merge tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"There are cleanups and minor bugfixes across several SoC specific
drivers, for Qualcomm, Samsung, NXP i.MX, AT91, Tegra, Keystone,
Renesas, ZynqMP
Noteworthy new features are:
- The op-tee firmware driver gains support for asynchronous
notifications from secure-world firmware.
- Qualcomm platforms gain support for new SoC types in various
drivers: power domain, cache controller, RPM sleep, soc-info
- Samsung SoC drivers gain support for new SoCs in ChipID and PMU, as
well as a new USIv2 driver that handles various types of serial
communiction (uart, i2c, spi)
- Renesas adds support for R-Car S4-8 (R8A779F0) in multiple drivers,
as well as memory controller support for RZ/G2L (R9A07G044).
- Apple M1 gains support for the PMGR power management driver"
* tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (94 commits)
soc: qcom: rpmh-rsc: Fix typo in a comment
soc: qcom: socinfo: Add SM6350 and SM7225
dt-bindings: arm: msm: Don't mark LLCC interrupt as required
dt-bindings: firmware: scm: Add SM6350 compatible
dt-bindings: arm: msm: Add LLCC for SM6350
soc: qcom: rpmhpd: Sort power-domain definitions and lists
soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280
soc: qcom: rpmhpd: Rename rpmhpd struct names
soc: qcom: rpmhpd: sm8450: Add the missing .peer for sm8450_cx_ao
soc: qcom: socinfo: add SM8450 ID
soc: qcom: rpmhpd: Add SM8450 power domains
dt-bindings: power: rpmpd: Add SM8450 to rpmpd binding
soc: qcom: smem: Update max processor count
dt-bindings: arm: qcom: Document SM8450 SoC and boards
dt-bindings: firmware: scm: Add SM8450 compatible
dt-bindings: arm: cpus: Add kryo780 compatible
soc: qcom: rpmpd: Add support for sm6125
dt-bindings: qcom-rpmpd: Add sm6125 power domains
soc: qcom: aoss: constify static struct thermal_cooling_device_ops
PM: AVS: qcom-cpr: Use div64_ul instead of do_div
...
Commit b42faeee71 ("spi: Add a PTP system timestamp
to the transfer structure") added an include of ptp_clock_kernel.h
to spi.h for struct ptp_system_timestamp but a forward declaration
is enough. Let's use that to limit the number of objects we have
to rebuild every time we touch networking headers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20210904013140.2377609-1-kuba@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Add missing pm_runtime_disable() for meson_spifc_probe.
Fixes: c3e4bc5434 ("spi: meson: Add support for Amlogic Meson SPIFC")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220107075424.7774-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We missed adding handle_err for gpi mode, so add a new function
spi_geni_handle_err() which would call handle_fifo_timeout() or newly
added handle_gpi_timeout() based on mode
Fixes: b59c122484 ("spi: spi-geni-qcom: Add support for GPI dma")
Reported-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220103071118.27220-2-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Before we invoke spi_finalize_current_transfer() in
spi_gsi_callback_result() we should set the spi->cur_msg->status as
appropriate (0 for success, error otherwise).
The helps to return error on transfer and not wait till it timesout on
error
Fixes: b59c122484 ("spi: spi-geni-qcom: Add support for GPI dma")
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220103071118.27220-1-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Propagate firmware node by using a specific API call, i.e. device_set_node().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20211222155739.7699-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In uniphier_spi_remove(), there is a wrong code to get private data from
the platform device, so the driver can't be removed properly.
The driver should get spi_master from the platform device and retrieve
the private data from it.
Cc: <stable@vger.kernel.org>
Fixes: 5ba155a4d4 ("spi: add SPI controller driver for UniPhier SoC")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1640148492-32178-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Mark Brown <broonie@kernel.org>
One small fix for a long standing issue with error handling on probe in
the Armada driver.
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Merge tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fix from Mark Brown:
"One small fix for a long standing issue with error handling on probe
in the Armada driver"
* tag 'spi-fix-v5.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: change clk_disable_unprepare to clk_unprepare
This is an assortment of driver patches that rely on some of the changes
in the for-5.17/soc branch. These have all been acked by the respective
maintainers and go through the Tegra tree to more easily handle the
build dependency.
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Merge tag 'tegra-for-5.17-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
drivers: Changes for v5.17-rc1
This is an assortment of driver patches that rely on some of the changes
in the for-5.17/soc branch. These have all been acked by the respective
maintainers and go through the Tegra tree to more easily handle the
build dependency.
* tag 'tegra-for-5.17-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
media: staging: tegra-vde: Support generic power domain
spi: tegra20-slink: Add OPP support
mtd: rawnand: tegra: Add runtime PM and OPP support
mmc: sdhci-tegra: Add runtime PM and OPP support
pwm: tegra: Add runtime PM and OPP support
bus: tegra-gmi: Add runtime PM and OPP support
usb: chipidea: tegra: Add runtime PM and OPP support
soc/tegra: Add devm_tegra_core_dev_init_opp_table_common()
soc/tegra: Enable runtime PM during OPP state-syncing
Link: https://lore.kernel.org/r/20211217162253.1801077-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Setting slave_id makes no sense with DT based probing, and
should eventually get removed entirely. Address this driver
by no longer setting the field here.
I could not find which DMA driver is used on PIC32, if it's
in the tree at all, but none of the obvious ones even care
about slave_id any more.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211122222203.4103644-4-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
The SPI on Tegra belongs to the core power domain and we're going to
enable GENPD support for the core domain. Now SPI driver must use OPP
API for driving the controller's clock rate because OPP API takes care
of reconfiguring the domain's performance state in accordance to the
rate. Add OPP support to the driver.
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Changes to the Renesas RPC-IF driver:
1. Add support for R9A07G044 / RZ/G2L.
2. Several minor fixes and improvements to the driver.
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Merge tag 'memory-controller-drv-renesas-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers
Memory controller drivers for v5.17 - Renesas
Changes to the Renesas RPC-IF driver:
1. Add support for R9A07G044 / RZ/G2L.
2. Several minor fixes and improvements to the driver.
* tag 'memory-controller-drv-renesas-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: renesas-rpc-if: refactor MOIIO and IOFV macros
memory: renesas-rpc-if: avoid use of undocumented bits
memory: renesas-rpc-if: simplify register update
memory: renesas-rpc-if: Silence clang warning
memory: renesas-rpc-if: Add support for RZ/G2L
memory: renesas-rpc-if: Drop usage of RPCIF_DIRMAP_SIZE macro
memory: renesas-rpc-if: Return error in case devm_ioremap_resource() fails
dt-bindings: memory: renesas,rpc-if: Add optional interrupts property
dt-bindings: memory: renesas,rpc-if: Add support for the R9A07G044
Link: https://lore.kernel.org/r/20211213105618.5686-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Move the cs_setup delay to the end of spi_set_cs.
From include/linux/spi/spi.h:
* @cs_setup: delay to be introduced by the controller after CS is
asserted
The cs_setup delay needs to happen *after* CS is asserted, that is, at
the end of spi_set_cs, not at the beginning. Otherwise we're just
delaying before the SPI transaction starts at all, which isn't very
useful.
No drivers use this right now, but that is likely to change soon with an
upcoming Apple SPI HID transport driver.
Fixes: 25093bdeb6 ("spi: implement SW control for CS times")
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20211210170534.177139-1-marcan@marcan.st
Signed-off-by: Mark Brown <broonie@kernel.org>
The corresponding API for clk_prepare is clk_unprepare, other than
clk_disable_unprepare.
Fix this by changing clk_disable_unprepare to clk_unprepare.
Fixes: 5762ab71eb ("spi: Add support for Armada 3700 SPI Controller")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20211206101931.2816597-1-mudongliangabcd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There is no user of the enable_loopback member in the struct pxa2xx_spi_chip.
Remote this legacy member completely.
The mentioned in the documentation the testing phase can be performed with
spidev_test tool.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211123192723.44537-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The 'direction' member of 'struct dma_slave_config' is deprecated.
Instead, drivers should use the direction argument to the
device_prep_slave_sg and device_prep_dma_cyclic functions or the
dir field in the dma_interleaved_template structure.
spi-atmel uses the direction argument to dmaengine_prep_slave_sg.
slave_config.direction is not used in neither of the DMA controller
drivers (at_h/xdmac) that spi-atmel is using, we can just remove the
setting of slave_config.direction and live with whatever stack value
is there.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211125124110.838037-3-tudor.ambarus@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The callers passed a pointer to slave_config as an argument of
atmel_spi_dma_slave_config(), but they did not use it afterwards.
Use instead a local variable in atmel_spi_dma_slave_config(), and
stop passing arguments that are not needed in the callers.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211125124110.838037-2-tudor.ambarus@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Check requested speed for a given transfer before setting
27MHz or 108Mhz sysclk on SoCs that support both. This way
for baud rates below 212Khz we can use 27Mhz clock.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20211124193353.32311-2-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The recent commit 3f07657506 ("spi: deduplicate spi_match_id()
in __spi_register_driver()") inadvertently inverted a condition
that provokes a (harmless) warning:
WARNING KERN SPI driver mtd_dataflash has no spi_device_id for atmel,at45
Restore logic to avoid such warning to be issued.
Fixes: 3f07657506 ("spi: deduplicate spi_match_id() in __spi_register_driver()")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20211123170034.41253-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Some Device Trees don't use a real device name in the compatible string
for SPI devices nodes, abusing the fact that the spidev driver name is
used to match as a fallback when a SPI device ID table is not defined.
But since commit 6840615f85 ("spi: spidev: Add SPI ID table") a table
for SPI device IDs was added to the driver breaking the assumption that
these DTs were relying on.
There has been a warning message for some time since commit 956b200a84
("spi: spidev: Warn loudly if instantiated from DT as "spidev""), making
quite clear that this case is not really supported by the spidev driver.
Since these devices won't match anyways after the mentioned commit, there
is no point to continue if an spidev compatible is used. Let's just make
the driver probe to fail early.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20211109225920.1158920-1-javierm@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Since the commit 196b0e2cf2 ("spi: pxa2xx: Remove if statement
that is always true in pump_transfers()") the ->read() and ->write()
methods in the struct driver_data are reconfigured for each transfer.
Hence no need to keep the intermediate state in the struct chip_data.
The same applies to n_bytes member of the same data structure.
Get rid of unneeded storage for good.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122200622.43305-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the 16-bit mode is what being used in user space.
However assuming that is not fully correct. Instead we should
use the respective mask, i.e. SPI_MODE_USER_MASK, which
precisely defines what bits are available for user space apps.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122175245.84691-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
/*
* Fix multi-line comment style as in this short example. Pay attention
* to the capitalization, period and starting line of the text.
*/
While at it, split the (supposedly short) description of couple of functions
to summary (short description) and (long) description.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122171721.61553-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
krealloc() as any other kernel memory allocation calls accepts GFP flags,
one of which is __GFP_ZERO. Hence, no need to call memset() explicitly on
the reallocated buffer.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122171721.61553-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The same logic is used in spi_match_id() and in the __spi_register_driver().
By switching the former from taking struct spi_device * to const char * as
the second parameter we may deduplicate the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211119173718.52938-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A few small fixes for v5.16, one in the core for an issue with handling
of controller unregistration that was introduced with the fixes for
registering nested SPI controllers and a few more minor device specific
ones.
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Merge tag 'spi-fix-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes for v5.16, one in the core for an issue with
handling of controller unregistration that was introduced with the
fixes for registering nested SPI controllers and a few more minor
device specific ones"
* tag 'spi-fix-v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fix use-after-free of the add_lock mutex
spi: spi-geni-qcom: fix error handling in spi_geni_grab_gpi_chan()
spi: lpspi: Silence error message upon deferred probe
spi: cadence-quadspi: fix write completion support
Commit b59c122484 ("spi: spi-geni-qcom: Add support for GPI dma")
added GPI support but also added unused defines, so remove them
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20211117133110.2682631-1-vkoul@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
"ret" variable is already declared in qspi_transfer_in() at the
beginning of function, drop redeclaring ret in the if block, fixing
below:
spi-rspi.c: In function ‘qspi_transfer_in’:
spi-rspi.c:838:7: warning: declaration of ‘ret’ shadows a previous local
838 | int ret = rspi_dma_transfer(rspi, NULL, &xfer->rx_sg);
| ^~~
spi-rspi.c:835:6: note: shadowed declaration is here
835 | int ret;
Fixes: db30083813 ("spi: rspi: avoid uninitialized variable access")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211118031041.2312-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
