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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"I2C has largely driver updates for 6.7, i.e. feature additions (like
adding transfers while in atomic mode), using new helpers (like
devm_clk_get_enabled), new IDs, documentation fixes and additions...
you name it.
The core got a memleak fix and better support for nested muxes"
* tag 'i2c-for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (53 commits)
i2c: s3c2410: make i2c_s3c_irq_nextbyte() void
i2c: qcom-geni: add ACPI device id for sc8180x
Documentation: i2c: add fault code for not supporting 10 bit addresses
i2c: sun6i-p2wi: Prevent potential division by zero
i2c: mux: demux-pinctrl: Convert to use sysfs_emit_at() API
i2c: i801: Use new helper acpi_use_parent_companion
ACPI: Add helper acpi_use_parent_companion
MAINTAINERS: add YAML file for i2c-demux-pinctrl
i2c: core: fix lockdep warning for sparsely nested adapter chain
i2c: axxia: eliminate kernel-doc warnings
dt-bindings: i2c: i2c-demux-pinctrl: Convert to json-schema
i2c: stm32f7: Use devm_clk_get_enabled()
i2c: stm32f4: Use devm_clk_get_enabled()
i2c: stm32f7: add description of atomic in struct stm32f7_i2c_dev
i2c: fix memleak in i2c_new_client_device()
i2c: exynos5: Calculate t_scl_l, t_scl_h according to i2c spec
i2c: i801: Simplify class-based client device instantiation
i2c: exynos5: add support for atomic transfers
i2c: at91-core: Use devm_clk_get_enabled()
eeprom: at24: add ST M24C64-D Additional Write lockable page support
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Implements the I2C function of Intel USB-I2C/GPIO/SPI adapter device
named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA I2C
module with specific protocol through interfaces exported by LJCA
USB driver.
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Link: https://lore.kernel.org/r/1696833205-16716-3-git-send-email-wentong.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add SMBus PCI ID on Intel Birch Stream SoC.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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The "i2c_mlxcpld" platform device is only instantiated on X86 systems
(through drivers/platform/x86/mlx-platform.c), or on ARM64 systems with
ACPI (through drivers/platform/mellanox/nvsw-sn2201.c). Hence further
restrict the dependency on ARM64 to ACPI, to prevent asking the user
about this driver when configuring an ARM64 kernel without ACPI support.
While at it, document in the Kconfig help text that the driver supports
ARM64/ACPI based systems, too.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Extend driver dependency by ARM64 architecture.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Drop extra space from the I2C_RZV2M config help description.
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Add SMBus PCI ID on Intel Meteor Lake PCH-S.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Mostly fixes for DTs or DT handling this time. And a few driver
bugfixes"
* tag 'i2c-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (28 commits)
i2c: xiic: xiic_xfer(): Fix runtime PM leak on error path
i2c: cadence: cdns_i2c_master_xfer(): Fix runtime PM leak on error path
i2c: omap: Improve error reporting for problems during .remove()
i2c: cadence: Add reset controller support
dt-bindings: i2c: cadence: Document `resets` property
i2c: mediatek: add support for MT7981 SoC
dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC
dt-bindings: i2c: Drop unneeded quotes
i2c: brcmstb: use devm_platform_ioremap_resource_byname()
i2c: cadence: Detect maximum transfer size
i2c: cadence: Allow to specify the FIFO depth
dt-bindings: i2c: cadence: Document `fifo-depth` property
i2c: xiic: Use devm_platform_get_and_ioremap_resource()
i2c: mpc: Use i2c-scl-clk-low-timeout-us i2c property
i2c: mpc: Use of_property_read_u32 instead of of_get_property
dt-bindings: i2c: mpc: Mark "fsl,timeout" as deprecated
i2c: xiic: hide OF related data for COMPILE_TEST
i2c: synquacer: mark OF related data as maybe unused
dt-bindings: i2c: i2c-mt65xx: Add compatible for MT6795 Helio X10
i2c: imx: Simplify using devm_clk_get_enabled()
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Mendocino and later platform don't use the platform feature mailbox for
communication for I2C arbitration, they rely upon ringing a doorbell.
Detect the platform by the device ID of the root port and choose the
appropriate method.
Link: https://lore.kernel.org/linux-i2c/20220916131854.687371-3-jsd@semihalf.com/
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Mark Hasemeyer <markhas@chromium.org>
Tested-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Currently the PSP semaphore communication base address is discovered
by using an MSR that is not architecturally guaranteed for future
platforms. Also the mailbox that is utilized for communication with
the PSP may have other consumers in the kernel, so it's better to
make all communication go through a single driver.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the Microchip FPGA
i2c drivers to use the new symbol.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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The ppc64le_allmodconfig sets I2C_PASEMI=y and leaves COMPILE_TEST to
default to y and I2C_APPLE to default to m, running into a known
incompatible configuration that breaks the build [1]. Specifically,
a common dependency (i2c-pasemi-core.o in this case) cannot be used by
both builtin and module consumers.
Disable I2C_APPLE when I2C_PASEMI is a builtin to prevent this.
[1]: https://lore.kernel.org/all/202112061809.XT99aPrf-lkp@intel.com
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- new drivers for HPE GXP and Loongson 2K/LS7A
- bigger refactorings for i801 and xiic
- gpio driver gained ACPI and SDA-write only support
- the core converted some OF helpers to fwnode helpers
- usual bunch of driver updates
* tag 'i2c-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (52 commits)
MAINTAINERS: Add HPE GXP I2C Support
i2c: Add GXP SoC I2C Controller
dt-bindings: i2c: Add hpe,gxp-i2c
i2c: xiic: Remove some dead code
i2c: xiic: Add SCL frequency configuration support
i2c: xiic: Update compatible with new IP version
dt-bindings: i2c: xiic: Add 'xlnx,axi-iic-2.1' to compatible
i2c: i801: Call i801_check_post() from i801_access()
i2c: i801: Call i801_check_pre() from i801_access()
i2c: i801: Centralize configuring block commands in i801_block_transaction
i2c: i801: Centralize configuring non-block commands in i801_simple_transaction
i2c: i801: Handle SMBAUXCTL_E32B in i801_block_transaction_by_block only
i2c: i801: Add i801_simple_transaction(), complementing i801_block_transaction()
Documentation: i2c: correct spelling
dt-bindings: i2c: i2c-st: convert to DT schema
i2c: i801: add helper i801_set_hstadd()
i2c: i801: make FEATURE_BLOCK_PROC dependent on FEATURE_BLOCK_BUFFER
i2c: i801: make FEATURE_HOST_NOTIFY dependent on FEATURE_IRQ
i2c: i801: improve interrupt handler
i2c: st: use pm_sleep_ptr to avoid ifdef CONFIG_PM_SLEEP
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The GXP SoC supports 10 I2C engines. Each I2C engine is completely
independent and can function both as an I2C master and I2C slave. The
I2C master can operate in a multi master environment. The engines support
a scalable speed from 8kHZ to 1.5 Mhz.
Signed-off-by: Nick Hawkins <nick.hawkins@hpe.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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This I2C module is integrated into the Loongson-2K SoCs and Loongson
LS7A bridge chip.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or
similar symbols that are no longer available with the platform gone,
though the drivers themselves are still used on newer platforms,
so remove these hacks.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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All board support that was marked as 'unused' earlier can
now be removed, leaving the five machines that that still
had someone using them in 2022, or that are supported in
qemu.
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This was marked as unused in 5.19 and can now be removed
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The HiSilicon I2C controller can be used on embedded platform, which
boot from devicetree.
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Acked-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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This fixes maybe_unused warnings/errors.
According to a comment during device tree removal, only ACPI is supported,
thus let's actually require it.
Fixes: be18c5ede25d ("i2c: mlxbf: remove device tree support")
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"The drivers branch for 6.1 is a bit larger than for most releases.
Most of the changes come from SoC maintainers for the drivers/soc
subsystem:
- A new driver for error handling on the NVIDIA Tegra 'control
backbone' bus.
- A new driver for Qualcomm LLCC/DDR bandwidth measurement
- New Rockchip rv1126 and rk3588 power domain drivers
- DT binding updates for memory controllers, older Rockchip SoCs,
various Mediatek devices, Qualcomm SCM firmware
- Minor updates to Hisilicon LPC bus, the Allwinner SRAM driver, the
Apple rtkit firmware driver, Tegra firmware
- Minor updates for SoC drivers (Samsung, Mediatek, Renesas, Tegra,
Qualcomm, Broadcom, NXP, ...)
There are also some separate subsystem with downstream maintainers
that merge updates this way:
- Various updates and new drivers in the memory controller subsystem
for Mediatek and Broadcom SoCs
- Small set of changes in preparation to add support for FF-A v1.1
specification later, in the Arm FF-A firmware subsystem
- debugfs support in the PSCI firmware subsystem"
* tag 'arm-drivers-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (149 commits)
ARM: remove check for CONFIG_DEBUG_LL_SER3
firmware/psci: Add debugfs support to ease debugging
firmware/psci: Print a warning if PSCI doesn't accept PC mode
dt-bindings: memory: snps,dw-umctl2-ddrc: Extend schema with IRQs/resets/clocks props
dt-bindings: memory: snps,dw-umctl2-ddrc: Replace opencoded numbers with macros
dt-bindings: memory: snps,dw-umctl2-ddrc: Use more descriptive device name
dt-bindings: memory: synopsys,ddrc-ecc: Detach Zynq DDRC controller support
soc: sunxi: sram: Add support for the D1 system control
soc: sunxi: sram: Export the LDO control register
soc: sunxi: sram: Save a pointer to the OF match data
soc: sunxi: sram: Return void from the release function
soc: apple: rtkit: Add apple_rtkit_poll
soc: imx: add i.MX93 media blk ctrl driver
soc: imx: add i.MX93 SRC power domain driver
soc: imx: imx8m-blk-ctrl: Use genpd_xlate_onecell
soc: imx: imx8mp-blk-ctrl: handle PCIe PHY resets
soc: imx: imx8m-blk-ctrl: add i.MX8MP VPU blk ctrl
soc: imx: add i.MX8MP HDMI blk ctrl HDCP/HRV_MWR
soc: imx: add icc paths for i.MX8MP hsio/hdmi blk ctrl
soc: imx: add icc paths for i.MX8MP media blk ctrl
...
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multifunction endpoint of pci1xxxx switch
Microchip pci1xxxx is an unmanaged PCIe3.1a Switch for Consumer,
Industrial and Automotive applications. This switch has multiple
downstream ports. In one of the Switch's Downstream port, there
is a multifunction endpoint for peripherals which includes an I2C
host controller. The I2C function in the endpoint operates at 100KHz,
400KHz and 1 MHz and has buffer depth of 128 bytes.
This patch provides the I2C controller driver for the I2C function
of the switch.
Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
Acked-by: Wolfram Sang <wsa@kernel.org> (for i2c)
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> (for reset)
Link: https://lore.kernel.org/r/20220803175455.47638-7-william.zhang@broadcom.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- Microsoft Surface:
- SSAM hot unplug support
- Surface Pro 8 keyboard cover support
- Tablet mode switch support for Surface Pro 8 and Surface Laptop
Studio
- thinkpad_acpi:
- AMD Automatice Mode Transitions (AMT) support
- Mellanox:
- Vulcan chassis COMe NVSwitch management support
- XH3000 support
- New generic/shared Intel P2SB (Primary to Sideband) support
- Lots of small cleanups
- Various small bugfixes
- Various new hardware ids / quirks additions
* tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (105 commits)
platform/x86/intel/vsec: Fix wrong type for local status variables
platform/x86: p2sb: Move out of X86_PLATFORM_DEVICES dependency
platform/x86: pmc_atom: Fix comment typo
platform/surface: gpe: Add support for 13" Intel version of Surface Laptop 4
platform/olpc: Fix uninitialized data in debugfs write
platform/mellanox: mlxreg-lc: Fix error flow and extend verbosity
platform/x86: pmc_atom: Match all Lex BayTrail boards with critclk_systems DMI table
platform/x86: sony-laptop: Remove useless comparisons in sony_pic_read_possible_resource()
tools/power/x86/intel-speed-select: Remove unneeded semicolon
tools/power/x86/intel-speed-select: Fix off by one check
platform/surface: tabletsw: Fix __le32 integer access
Documentation/ABI: Add new attributes for mlxreg-io sysfs interfaces
Documentation/ABI: mlxreg-io: Fix contact info
platform/mellanox: mlxreg-io: Add locking for io operations
platform/x86: mlx-platform: Add COME board revision register
platform/x86: mlx-platform: Add support for new system XH3000
platform/x86: mlx-platform: Introduce support for COMe NVSwitch management module for Vulcan chassis
platform/x86: mlx-platform: Add support for systems equipped with two ASICs
platform/x86: mlx-platform: Add cosmetic changes for alignment
platform/x86: mlx-platform: Make activation of some drivers conditional
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- new drivers: Microchip CoreI2C, Renesas RZV2M
- quite some DT schema conversions and extensions
- and a bunch of driver updates and improvements
* tag 'i2c-for-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits)
i2c: extend documentation about retvals of master_xfer functions
i2c: mux-gpmux: Add of_node_put() when breaking out of loop
dt-bindings: i2c: i2c-rk3x: Document Rockchip RV1126
i2c: qcom-geni: Use the correct return value
i2c: cadence: Support PEC for SMBus block read
i2c: qcom-geni: Propagate GENI_ABORT_DONE to geni_i2c_abort_xfer()
i2c: brcmstb: Use dev_name() for adapter name
i2c: Add Renesas RZ/V2M controller
dt-bindings: i2c: Document RZ/V2M I2C controller
i2c: mlxcpld: Add callback to notify probing completion
i2c: scmi: Replace open coded device_get_match_data()
i2c: stm32: add support for the STM32MP13 soc
dt-bindings: i2c: st,stm32-i2c: add entry for stm32mp13
dt-bindings: i2c: i2c-rk3x: add rk3588 compatible
i2c: add support for microchip fpga i2c controllers
i2c: i801: Add support for Intel Meteor Lake-P
dt-bindings: i2c: nomadik: Add power domain to binding
dt-bindings: i2c: nomadik: Drop unused voltage supply from example
i2c: Fix a potential use after free
i2c: hisi: use HZ_PER_KHZ macro in units.h
...
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Yet another i2c controller from Renesas that is found on the RZ/V2M
(r9a09g011) SoC. It can support only 100kHz and 400KHz operation.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
[wsa: removed superfluous class type and renamed a function]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Since we have a common P2SB accessor in tree we may use it instead of
open coded variants.
Replace custom code by p2sb_bar() call.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Henning Schild <henning.schild@siemens.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
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Prepare for the BCM63138 ARCH_BCM_63XX migration to ARCH_BCMBCA. Make
I2C_BRCMSTB depending on ARCH_BCMBCA.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Add Microchip CoreI2C i2c controller support. This driver supports the
"hard" i2c controller on the Microchip PolarFire SoC & the basic feature
set for "soft" i2c controller implemtations in the FPGA fabric.
Co-developed-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Add SMBus PCI ID on Intel Meteor Lake-P.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Add NPCM8XX I2C support.
The NPCM8XX uses a similar i2c module as NPCM7XX.
The internal HW FIFO is larger in NPCM8XX.
Signed-off-by: Tyrone Ting <kfting@nuvoton.com>
Acked-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into i2c/for-mergewindow
Provide a tag for maintainers to pull the generic_handle_irq_safe() API.
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Driver builds fine with COMPILE_TEST. Enable it for wider test coverage
and easier maintenance.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Driver builds fine with COMPILE_TEST. Enable it for wider test coverage
and easier maintenance.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
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Driver builds fine with COMPILE_TEST. Enable it for wider test coverage
and easier maintenance.
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
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Instead of open coded variant switch to use i2c_new_ccgx_ucsi().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Instead of open coded variant switch to use i2c_new_ccgx_ucsi().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Introduce a common module to provide an API to instantiate UCSI device
for Cypress CCGx Type-C controller. Individual bus drivers need to select
this one on demand.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Add SMBus PCI ID on Intel Raptor Lake PCH-S.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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BCM4908 SoCs use the same I2C hardware block as STB and BCM63xx devices.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Implement an I2C controller sharing mechanism between the host (kernel)
and PSP co-processor on some platforms equipped with AMD Cezanne SoC.
On these platforms we need to implement "software" i2c arbitration.
Default arbitration owner is PSP and kernel asks for acquire as well
as inform about release of the i2c bus via mailbox mechanism.
+---------+
<- ACQUIRE | |
+---------| CPU |\
| | | \ +----------+ SDA
| +---------+ \ | |-------
MAILBOX +--> | I2C-DW | SCL
| +---------+ | |-------
| | | +----------+
+---------| PSP |
<- ACK | |
+---------+
+---------+
<- RELEASE | |
+---------| CPU |
| | | +----------+ SDA
| +---------+ | |-------
MAILBOX +--> | I2C-DW | SCL
| +---------+ / | |-------
| | | / +----------+
+---------| PSP |/
<- ACK | |
+---------+
The solution is similar to i2c-designware-baytrail.c implementation, where
we are using a generic i2c-designware-* driver with a small "wrapper".
In contrary to baytrail semaphore implementation, beside internal
acquire_lock() and release_lock() methods we are also applying quirks to
lock_bus() and unlock_bus() global adapter methods. With this in place
all i2c clients drivers may lock i2c bus for a desired number of i2c
transactions (e.g. write-wait-read) without being aware of that such bus
is shared with another entity.
Modify i2c_dw_probe_lock_support() to select correct semaphore
implementation at runtime, since now we have more than one available.
Configure new matching ACPI ID "AMDI0019" and register
ARBITRATION_SEMAPHORE flag in order to distinguish setup with PSP
arbitration.
Add myself as a reviewer for I2C DesignWare in order to help with reviewing
and testing possible changes touching new i2c-designware-amdpsp.c module.
Signed-off-by: Jan Dabros <jsd@semihalf.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
[wsa: removed unneeded blank line and curly braces]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Mostly driver updates and refactorization.
The removal of the XLR driver and the i801 refactoring stand out a
little. In the core, we enabled async suspend/resume for I2C
controllers and their clients. No issues were reported during the test
phase in -next. We will see how this goes for mainline"
* 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (54 commits)
i2c: sh_mobile: remove unneeded semicolon
i2c: riic: Use platform_get_irq() to get the interrupt
i2c: sh_mobile: Use platform_get_irq_optional() to get the interrupt
i2c: bcm2835: Use platform_get_irq() to get the interrupt
i2c: aspeed: Remove unused includes
dt-bindings: i2c: aspeed: Drop stray '#interrupt-cells'
i2c: sh_mobile: update to new DMAENGINE API when terminating
i2c: rcar: update to new DMAENGINE API when terminating
i2c: exynos5: Fix getting the optional clock
i2c: designware-pci: Convert to use dev_err_probe()
i2c: designware-pci: use __maybe_unused for PM functions
i2c: designware-pci: Group MODULE_*() macros
i2c: designware-pci: Add a note about struct dw_scl_sda_cfg usage
i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters
i2c: designware: Do not complete i2c read without RX_FULL interrupt
eeprom: at24: Add support for 24c1025 EEPROM
dt-bindings: at24: add at24c1025
i2c: tegra: use i2c_timings for bus clock freq
dt-bindings: at24: Rework special case compatible handling
i2c: i801: Don't clear status flags twice in interrupt mode
...
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I2C controller chosen by I2C_EXYNOS5 config option is also suitable for
Exynos850 and ExynosAutoV9 SoCs. State that specifically in I2C_EXYNOS5
symbol help section.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Commits 95b8a5e0111a ("MIPS: Remove NETLOGIC support") and edd4488aea9c
("ARM: remove tango platform") removed Netlogic XLR and Sigma Designs
Tango platforms which means there are no platforms using the XLR I2C
driver and it can be removed.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Netlogic XLP was removed in commit 95b8a5e0111a ("MIPS: Remove NETLOGIC
support"). With those gone, the single platform left to support is
Cavium ThunderX2. Remove the Netlogic variant and DT support.
For simplicity, the existing kconfig name is retained.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by George Cherian <gcherian@marvell.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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A separate Kconfig option HAVE_S3C2410_I2C for Samsung SoCs is not
really needed and the i2c-s3c24xx driver can depend on Samsung ARM
architectures instead. This also enables i2c-s3c2410 for arm64 Exynos
SoCs, which is required for example by Exynos850.
This is basically continuation of work made in following commits:
- commit d96890fca9fd ("rtc: s3c: remove HAVE_S3C_RTC in favor of
direct dependencies")
- commit 7dd3cae90d85 ("ARM: samsung: remove HAVE_S3C2410_WATCHDOG and
use direct dependencies")
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20211121150558.21801-2-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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With all the previous preparations we can now finally add
the platform driver to support the PASemi-based controllers
in Apple SoCs. This does not work on the M1 yet but should
work on the early iPhones already.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Describe better which driver applies to which SoC, to make configuring
kernel for Samsung SoC easier.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Add an I2C bus driver for virtio para-virtualization.
The controller can be emulated by the backend driver in
any device model software by following the virtio protocol.
The device specification can be found on
https://lists.oasis-open.org/archives/virtio-comment/202101/msg00008.html.
By following the specification, people may implement different
backend drivers to emulate different controllers according to
their needs.
Co-developed-by: Conghui Chen <conghui.chen@intel.com>
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Signed-off-by: Jie Deng <jie.deng@intel.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Commit 1b00767fd8e1 ("MIPS: Remove PMC MSP71xx platform") removes the
config PMC_MSP in ./arch/mips/Kconfig.
Hence, since then, the corresponding PMC MSP TWI/SMBus/I2C driver is
dead code. Remove this dead driver.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Linus Torvalds
Wentong Wu
Jarkko Nikula
Geert Uytterhoeven
Vadim Pasternak
Biju Das
Mario Limonciello
Conor Dooley
Benjamin Gray
Nick Hawkins
Binbin Zhou
Arnd Bergmann
Weilong Chen
Adam Borowski
Tharun Kumar P
William Zhang
Phil Edworthy
Andy Shevchenko
Tyrone Ting
Wolfram Sang
Rafał Miłecki
Jan Dabros
Sam Protsenko
Rob Herring
Sven Peter
Krzysztof Kozlowski
Jie Deng
Lukas Bulwahn