- 27 Nov, 2020 7 commits
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Krzysztof Kozlowski authored
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). This fixes compile warning (!CONFIG_OF on x86_64): drivers/mfd/da9062-core.c:614:34: warning: ‘da9062_dt_ids’ defined but not used [-Wunused-const-variable=] Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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Krzysztof Kozlowski authored
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). This fixes compile warning (!CONFIG_OF on x86_64): drivers/mfd/da9055-i2c.c:66:34: warning: ‘da9055_of_match’ defined but not used [-Wunused-const-variable=] Signed-off-by:
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Krzysztof Kozlowski authored
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). This fixes compile warning (!CONFIG_OF on x86_64): drivers/mfd/bcm590xx.c:95:34: warning: ‘bcm590xx_of_match’ defined but not used [-Wunused-const-variable=] Signed-off-by:
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Krzysztof Kozlowski authored
The MFD_OMAP_USB_HOST uses Common Clock Framework thus it cannot be built on platforms without it (e.g. compile test on MIPS with LANTIQ): mips-linux-ld: drivers/mfd/omap-usb-host.o: in function `usbhs_omap_probe': omap-usb-host.c:(.text+0x940): undefined reference to `clk_set_parent' Reported-by:kernel test robot <lkp@intel.com> Signed-off-by:
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Michael Brunner authored
Change the detection order to priorize DMI table entries over available ACPI entries. This makes it more easy for product developers to patch product specific handling into the driver. Furthermore it allows to simplify the implementation a bit and especially to remove the need to force synchronous probing. Signed-off-by:
Michael Brunner <michael.brunner@kontron.com> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
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Dmitry Osipenko authored
Correct power-off programming sequence in order to fix shutting down devices which are using TPS65910 PMIC. In accordance to the TPS65910 datasheet, the PMIC's state-machine transitions into the OFF state only when DEV_OFF bit of DEVCTRL_REG is set. The ON / SLEEP states also should be cleared, otherwise PMIC won't get into a proper state on shutdown. Devices like Nexus 7 tablet and Ouya game console are shutting down properly now. Tested-by:
Peter Geis <pgwipeout@gmail.com> Tested-by:
Zack Pearsall <zpearsall@yahoo.com> Signed-off-by:
Dmitry Osipenko <digetx@gmail.com> Signed-off-by:
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Zou Wei authored
drivers/mfd/altera-sysmgr.c:155:36-39: WARNING: Suspicious code. resource_size is maybe missing with res Generated by: scripts/coccinelle/api/resource_size.cocci Signed-off-by:
Zou Wei <zou_wei@huawei.com> Signed-off-by:
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- 19 Nov, 2020 27 commits
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Tony Lindgren authored
With commit 3a6f0fb7 ("regmap: irq: Add support to clear ack registers"), the cpcap interrupts are no longer getting acked properly leading to a very unresponsive device with CPUs fully loaded spinning in the threaded IRQ handlers. To me it looks like the clear_ack commit above actually fixed a long standing bug in regmap_irq_thread() where we unconditionally acked the interrupts earlier without considering ack_invert. And the issue with cpcap started happening as we now also consider ack_invert. Tim Harvey <tharvey@gateworks.com> tried to fix this issue earlier with "[PATCH v2] regmap: irq: fix ack-invert", but the reading of the ack register was considered unnecessary for just ack_invert, and we did not have clear_ack available yet. As the cpcap irqs worked both with and without ack_invert earlier because of the unconditional ack, the problem remained hidden until now. Also, looks like the earlier v3.0.8 based Motorola Android Linux kernel does clear_ack style read-clear-write with "ireg_val & ~mreg_val" instead of just ack_invert style write. So let's switch cpcap to use clear_ack to fix the issue. Fixes: 3a6f0fb7 ("regmap: irq: Add support to clear ack registers") Cc: Carl Philipp Klemm <philipp@uvos.xyz> Cc: Laxminath Kasam <lkasam@codeaurora.org> Cc: Merlijn Wajer <merlijn@wizzup.org> Cc: Mark Brown <broonie@kernel.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Sebastian Reichel <sre@kernel.org> Cc: Tim Harvey <tharvey@gateworks.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> Tested-by:
Pavel Machek <pavel@ucw.cz> Reviewed-By:
Tim Harvey <tharvey@gateworks.com> Signed-off-by:
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Amelie Delaunay authored
'ret' may be 0 so, dev_err_probe() should be called only when 'ret' is an error code. Fixes: 41c9c06c ("mfd: stmfx: Simplify with dev_err_probe()") Signed-off-by:
Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by:
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Geert Uytterhoeven authored
Currently the Kontron sl28cpld Board Management Controller is found only on Kontron boards equipped with a Freescale Layerscape SoC. Hence add a dependency on ARCH_LAYERSCAPE, to prevent asking the user about a driver for this controller when configuring a kernel without Layerscape support. Fixes: a538ad22 ("mfd: simple-mfd-i2c: Add sl28cpld support") Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Michael Walle <michael@walle.cc> Signed-off-by:
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Michael Srba authored
Fix regulators on rt5033 by converting some values to bitmasks which were errorneously not defined as such in the header file. Cc: Beomho Seo <beomho.seo@samsung.com> Fixes: 0b271258 ("mfd: rt5033: Add Richtek RT5033 driver core.") Signed-off-by:
Michael Srba <Michael.Srba@seznam.cz> Signed-off-by:
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Johan Jonker authored
With the conversion of syscon.yaml minItems for compatibles was set to 2. Current Rockchip dtsi files only use "syscon" for QoS registers. Add Rockchip QoS compatibles to reduce notifications produced with: make ARCH=arm dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/syscon.yaml make ARCH=arm64 dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/syscon.yaml Signed-off-by:
Johan Jonker <jbx6244@gmail.com> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Jing Xiangfeng authored
htcpld_register_chip_i2c() misses to call i2c_put_adapter() in an error path. Add the missed function call to fix it. Fixes: 6048a3dd ("mfd: Add HTCPLD driver") Signed-off-by:
Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by:
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Codrin Ciubotariu authored
There are no separate serial/SPI devices under the at91-usart MFD, but actually the MFD is used as a serial or a SPI device. There are no DT sub-nodes for the MFD children, so we should use platform device API to register the drivers. Suggested-by:
Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Signed-off-by:
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Michał Mirosław authored
Use regmap accessors directly for register manipulation - removing one layer of abstraction. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Charles Keepax authored
An errata exists for cs47l15 where the reset must be handled differently and removed before DCVDD is applied. A soft reset is used for situations where a reset is required to reset state. This does however, make this part unsuitable for DCVDD supplies with a rise time greater than 2mS. Signed-off-by:
Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by:
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Charles Keepax authored
The DCVDD supply does not always power down when the CODEC enters suspend, for example shared regulators or always-on regulators. In these cases if a register is written back to the default value whilst the CODEC is in suspend that register will retain the previous value. As DCVDD never powered down, the register retains its old value and as the cache sync only synchronises registers that differ from the default the new value is never written out. Ensure the registers are in the expected state after suspend by always resetting the CODEC on resume. This also has the benefit of being recommended by the datasheet for DCVDD supplies that take longer than 2mS to rise. Signed-off-by:
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Krzysztof Kozlowski authored
Add common properties appearing in DTSes (clock-names, clock-output-names) with the common values (actually used in DTSes) to fix dtbs_check warnings like: arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dt.yaml: pmic@4b: 'clock-names', 'clock-output-names', do not match any of the regexes: 'pinctrl-[0-9]+' Signed-off-by:Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by:
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Lee Jones authored
CHECK: Alignment should match open parenthesis #24: FILE: drivers/mfd/tps65910.c:296: + ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL, DEVCTRL_CK32K_CTRL_MASK); CHECK: Alignment should match open parenthesis #33: FILE: drivers/mfd/tps65910.c:318: + ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL, DEVCTRL_DEV_SLP_MASK); CHECK: Alignment should match open parenthesis #42: FILE: drivers/mfd/tps65910.c:326: + ret = regmap_set_bits(tps65910->regmap, TPS65910_SLEEP_KEEP_RES_ON, CHECK: Alignment should match open parenthesis #51: FILE: drivers/mfd/tps65910.c:336: + ret = regmap_set_bits(tps65910->regmap, TPS65910_SLEEP_KEEP_RES_ON, CHECK: Alignment should match open parenthesis #60: FILE: drivers/mfd/tps65910.c:346: + ret = regmap_set_bits(tps65910->regmap, TPS65910_SLEEP_KEEP_RES_ON, CHECK: Alignment should match open parenthesis #69: FILE: drivers/mfd/tps65910.c:358: + regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL, DEVCTRL_DEV_SLP_MASK); CHECK: Alignment should match open parenthesis #78: FILE: drivers/mfd/tps65910.c:440: + if (regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL, DEVCTRL_PWR_OFF_MASK) < 0) CHECK: Alignment should match open parenthesis #83: FILE: drivers/mfd/tps65910.c:444: + regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL, DEVCTRL_DEV_ON_MASK); Signed-off-by: -
Michał Mirosław authored
Client pointers in tps65910 data are not used in the drivers. Remove those fields. Signed-off-by:
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Michał Mirosław authored
Remove wrappers around regmap calls to remove now-useless indirection. Signed-off-by:
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Michał Mirosław authored
Use regmap accessors directly for register manipulation - removing one layer of abstraction. Signed-off-by:
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AngeloGioacchino Del Regno authored
Add the subtype and compatible strings for PM660 and PM660L, found in various SoCs, including SDM630, SDM636, SDM660 and SDA variants. Signed-off-by:
AngeloGioacchino Del Regno <kholk11@gmail.com> Signed-off-by:
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Richard Fitzgerald authored
The register field xxx_WIDTH defines are not used in current code. Signed-off-by:
Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by:
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Rikard Falkeborn authored
Constify a number of static struct resource. The only usage of the structs are to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
Rikard Falkeborn <rikard.falkeborn@gmail.com> Signed-off-by:
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Rikard Falkeborn authored
Constify adc_resources[]. The only usage is to assign its address to the resources field of the mfd_cell struct. This allows the compiler to put it in read-only memory. Done with the help of Coccinelle. Signed-off-by:
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Rikard Falkeborn authored
Constify a couple of static struct resource. The only usage of the structs is to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
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Rikard Falkeborn authored
Constify a couple of static struct resource. The only usage of the structs is to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
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Rikard Falkeborn authored
Constify a number of static struct resource. The only usage of the structs are to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
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Rikard Falkeborn authored
Constify a number of static struct resource. The only usage of the structs are to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
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Rikard Falkeborn authored
Constify a number of static struct resource. The only usage of the structs are to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by:
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Rikard Falkeborn authored
Constify a number of static struct resource. The only usage of the structs are to assign their address to the resources field in the mfd_cell struct. This allows the compiler to put them in read-only memory. Done with the help of Coccinelle. Signed-off-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by:
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Lee Jones authored
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Enric Balletbo i Serra authored
This adds syscon_regmap_lookup_by_phandle_optional() function to get an optional regmap. It behaves the same as syscon_regmap_lookup_by_phandle() except where there is no regmap phandle. In this case, instead of returning -ENODEV, the function returns NULL. This makes error checking simpler when the regmap phandle is optional. Suggested-by:
Nicolas Boichat <drinkcat@chromium.org> Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by:
Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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- 04 Nov, 2020 5 commits
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Alexander Duyck authored
Add support for the Intel Platform Monitoring Technology crashlog interface. This interface provides a few sysfs values to allow for controlling the crashlog telemetry interface as well as a character driver to allow for mapping the crashlog memory region so that it can be accessed after a crashlog has been recorded. This driver is meant to only support the server version of the crashlog which is identified as crash_type 1 with a version of zero. Currently no other types are supported. Signed-off-by:
Alexander Duyck <alexander.h.duyck@linux.intel.com> Signed-off-by:
David E. Box <david.e.box@linux.intel.com> Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Alexander Duyck authored
PMT Telemetry is a capability of the Intel Platform Monitoring Technology. The Telemetry capability provides access to device telemetry metrics that provide hardware performance data to users from read-only register spaces. With this driver present the intel_pmt directory can be populated with telem<x> devices. These devices will contain the standard intel_pmt sysfs data and a "telem" binary sysfs attribute which can be used to access the telemetry data. Also create a PCI device id list for early telemetry hardware that require workarounds for known issues. Signed-off-by:
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Alexander Duyck authored
Intel Platform Monitoring Technology is meant to provide a common way to access telemetry and system metrics. Register mappings are not provided by the driver. Instead, a GUID is read from a header for each endpoint. The GUID identifies the device and is to be used with an XML, provided by the vendor, to discover the available set of metrics and their register mapping. This allows firmware updates to modify the register space without needing to update the driver every time with new mappings. Firmware writes a new GUID in this case to specify the new mapping. Software tools with access to the associated XML file can then interpret the changes. The module manages access to all Intel PMT endpoints on a system, independent of the device exporting them. It creates an intel_pmt class to manage the devices. For each telemetry endpoint, sysfs files provide GUID and size information as well as a pointer to the parent device the telemetry came from. Software may discover the association between endpoints and devices by iterating through the list in sysfs, or by looking for the existence of the class folder under the device of interest. A binary sysfs attribute of the same name allows software to then read or map the telemetry space for direct access. Signed-off-by:
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David E. Box authored
Intel Platform Monitoring Technology (PMT) is an architecture for enumerating and accessing hardware monitoring facilities. PMT supports multiple types of monitoring capabilities. This driver creates platform devices for each type so that they may be managed by capability specific drivers (to be introduced). Capabilities are discovered using PCIe DVSEC ids. Support is included for the 3 current capability types, Telemetry, Watcher, and Crashlog. The features are available on new Intel platforms starting from Tiger Lake for which support is added. This patch adds support for Tiger Lake (TGL), Alder Lake (ADL), and Out-of-Band Management Services Module (OOBMSM). Also add a quirk mechanism for several early hardware differences and bugs. For Tiger Lake and Alder Lake, do not support Watcher and Crashlog capabilities since they will not be compatible with future product. Also, fix use a quirk to fix the discovery table offset. Co-developed-by:
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David E. Box authored
Add PCIe Designated Vendor-Specific Extended Capability (DVSEC) and defines for the header offsets. Defined in PCIe r5.0, sec 7.9.6. Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
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- 25 Oct, 2020 1 commit
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Linus Torvalds authored
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