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path: root/drivers/mfd/syscon.c (follow)
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* mfd: syscon: Call of_node_put() only when of_parse_phandle() takes a refPeter Griffin2024-02-231-1/+3
| | | | | | | | | | | | of_parse_phandle() returns a device_node with refcount incremented, which the callee needs to call of_node_put() on when done. We should only call of_node_put() when the property argument is provided though as otherwise nothing has taken a reference on the node. Fixes: 45330bb43421 ("mfd: syscon: Allow property as NULL in syscon_regmap_lookup_by_phandle") Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20240220115012.471689-2-peter.griffin@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
* mfd: syscon: Fix null pointer dereference in of_syscon_register()Kunwu Chan2023-12-071-0/+4
| | | | | | | | | | | kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: e15d7f2b81d2 ("mfd: syscon: Use a unique name with regmap_config") Signed-off-by: Kunwu Chan <chentao@kylinos.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20231204092443.2462115-1-chentao@kylinos.cn Signed-off-by: Lee Jones <lee@kernel.org>
* mfd: syscon: Allow reset control for syscon devicesJeremy Kerr2023-02-221-6/+21
| | | | | | | | | | | | | | | Simple syscon devices may require deassertion of a reset signal in order to access their register set. Rather than requiring a custom driver to implement this, we can use the generic "resets" specifiers to link a reset line to the syscon. This change adds an optional reset line to the syscon device description, and deasserts the reset if detected. Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230105005010.124948-3-jk@codeconstruct.com.au
* Revert "mfd: syscon: Remove repetition of the regmap_get_val_endian()"Jason A. Donenfeld2022-10-231-0/+8
| | | | | | | | | | | | | | | This reverts commit 72a95859728a7866522e6633818bebc1c2519b17. It broke reboots on big-endian MIPS and MIPS64 malta QEMU instances, which use the syscon driver. Little-endian is not effected, which means likely it's important to handle regmap_get_val_endian() in this function after all. Fixes: 72a95859728a ("mfd: syscon: Remove repetition of the regmap_get_val_endian()") Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Lee Jones <lee@kernel.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mfd: syscon: Remove repetition of the regmap_get_val_endian()Andy Shevchenko2022-09-291-8/+0
| | | | | | | | | | Since the commit 0dbdb76c0ca8 ("regmap: mmio: Parse endianness definitions from DT") regmap MMIO parses DT itsef, no need to repeat this in the caller(s). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220808140811.26734-1-andriy.shevchenko@linux.intel.com
* syscon: Use %pa to format the variable of resource_size_t typeAndy Shevchenko2022-07-191-2/+1
| | | | | | | | | | Instead of explicit casting, use %pa specifier to format the variable of resource_size_t type. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220531202404.70282-1-andriy.shevchenko@linux.intel.com
* mfd: syscon: Use of_iomap() instead of ioremap()Hector Martin2021-09-071-1/+1
| | | | | | | | | This automatically selects between ioremap() and ioremap_np() on platforms that require it, such as Apple SoCs. Signed-off-by: Hector Martin <marcan@marcan.st> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Free the allocated name field of struct regmap_configLimeng2021-06-021-1/+1
| | | | | | | | | | | | | | | | | | The commit 529a1101212a("mfd: syscon: Don't free allocated name for regmap_config") doesn't free the allocated name field of struct regmap_config, but introduce a memory leak. There is another commit 94cc89eb8fa5("regmap: debugfs: Fix handling of name string for debugfs init delays") fixing this debugfs init issue from root cause. With this fixing, the name field in struct regmap_debugfs_node is removed. When initialize debugfs for syscon driver, the name field of struct regmap_config is not used anymore. So, the allocated name field of struct regmap_config is need to be freed directly after regmap initialization to avoid memory leak. Cc: stable@vger.kernel.org Fixes: 529a1101212a("mfd: syscon: Don't free allocated name for regmap_config") Signed-off-by: Meng Li <Meng.Li@windriver.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Add syscon_regmap_lookup_by_phandle_optional() function.Enric Balletbo i Serra2020-11-191-0/+18
| | | | | | | | | | | | | | | | 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: Lee Jones <lee.jones@linaro.org>
* Merge tag 'mfd-next-5.10' of ↵Linus Torvalds2020-10-151-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for initialising shared (between children) Regmaps - Add support for Kontron SL28CPLD - Add support for ENE KB3930 Embedded Controller - Add support for Intel FPGA PAC MAX 10 BMC New Device Support: - Add support for Power to Ricoh RN5T618 - Add support for UART to Intel Lakefield - Add support for LP87524_Q1 to Texas Instruments LP87565 New Functionality: - Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1 - Use new helper dev_err_probe(); madera-core, stmfx, wcd934x - Use new GPIOD API; dm355evm_msp - Add wake-up capability; sprd-sc27xx-spi - Add ACPI support; kempld-core Fix-ups: - Trivial (spelling/whitespace); Kconfig, ab8500 - Fix for unused variables; khadas-mcu, kempld-core - Remove unused header file(s); mt6360-core - Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic - Add COMPILE_TEST support; asic3, tmio_core - Add dependency on I2C; SL28CPLD Bug Fixes: - Fix memory leak(s); sm501 - Do not free regmap_config's 'name' until exit; syscon" * tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits) mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI mfd: sl28cpld: Depend on I2C mfd: asic3: Build if COMPILE_TEST=y dt-bindings: mfd: Correct interrupt flags in examples mfd: Add ACPI support to Kontron PLD driver mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC mfd: lp87565: Add LP87524-Q1 variant dt-bindings: mfd: Add LP87524-Q1 dt-bindings: mfd: lp87565: Convert to yaml mfd: mt6360: Remove unused include <linux/version.h> mfd: sm501: Fix leaks in probe() mfd: syscon: Don't free allocated name for regmap_config dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings dt-bindings: mfd: ab8500: Remove weird Unicode characters mfd: sprd: Add wakeup capability for PMIC IRQ mfd: intel-lpss: Add device IDs for UART ports for Lakefield mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table mfd: wcd934x: Simplify with dev_err_probe() mfd: stmfx: Simplify with dev_err_probe() ...
| * mfd: syscon: Don't free allocated name for regmap_configMarc Zyngier2020-09-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The name allocated for the regmap_config structure is freed pretty early, right after the registration of the MMIO region. Unfortunately, that doesn't follow the life cycle that debugfs expects, as it can access the name field long after the free has occurred. Move the free on the error path, and keep it forever otherwise. Fixes: e15d7f2b81d2 ("mfd: syscon: Use a unique name with regmap_config") Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva2020-08-241-1/+1
|/ | | | | | | | | | Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
* mfd: syscon: Use a unique name with regmap_configSuman Anna2020-08-131-1/+3
| | | | | | | | | | | | | | | The DT node full name is currently being used in regmap_config which in turn is used to create the regmap debugfs directories. This name however is not guaranteed to be unique and the regmap debugfs registration can fail in the cases where the syscon nodes have the same unit-address but are present in different DT node hierarchies. Replace this logic using the syscon reg resource address instead (inspired from logic used while creating platform devices) to ensure a unique name is given for each syscon. Signed-off-by: Suman Anna <s-anna@ti.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Add arguments support for syscon referenceOrson Zhai2020-01-241-0/+29
| | | | | | | | | | | | | | | There are a lot of similar global registers being used across multiple SoCs from Unisoc. But most of these registers are assigned with different offset for different SoCs. It is hard to handle all of them in an all-in-one kernel image. Add a helper function to get regmap with arguments where we could put some extra information such as the offset value. Signed-off-by: Orson Zhai <orson.zhai@unisoc.com> Tested-by: Baolin Wang <baolin.wang@unisoc.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Re-use resource_size() to count max_registerAndy Shevchenko2020-01-241-1/+1
| | | | | | | | | Instead of open coded variant use resource_size() and replace weird '- 3' to more understandable '- 4'. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Revert "mfd: syscon: Set name of regmap_config"Andy Shevchenko2019-11-131-1/+0
| | | | | | | | | | | This reverts commit 500f9ff518cf55930c670b0e2b8901caf70a7548. The original commit is a duplication of the exactly previously added commit 408d1d570a63 ("mfd: syscon: Set regmap name to DT node name"). Revert the unnecessary later one. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd/syscon: Add device_node_to_regmap()Paul Cercueil2019-08-091-16/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | device_node_to_regmap() is exactly like syscon_node_to_regmap(), but it does not check that the node is compatible with "syscon", and won't attach the first clock it finds to the regmap. The rationale behind this, is that one device node with a standard compatible string "foo,bar" can be covered by multiple drivers sharing a regmap, or by a single driver doing all the job without a regmap, but these are implementation details which shouldn't reflect on the devicetree. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Lee Jones <lee.jones@linaro.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-clk@vger.kernel.org Cc: od@zcrc.me Cc: Mathieu Malaterre <malat@debian.org>
* mfd: Remove unused helper syscon_regmap_lookup_by_pdevnameSuzuki K Poulose2019-06-241-21/+0
| | | | | | | | | | | | Nobody uses the exported helper syscon_regmap_lookup_by_pdevname, to lookup a device by name. Let us remove it. Suggested-by: Arnd Bergman <arnd@arnd.de> Cc: Arnd Bergman <arnd@arnd.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner2019-05-301-5/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mfd: syscon: Add optional clock supportFabrice Gasnier2019-05-141-0/+19
| | | | | | | | | Some system control registers need to be clocked, so the registers can be accessed. Add an optional clock and attach it to regmap. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Make it explicitly non-modularPaul Gortmaker2019-02-011-11/+1
| | | | | | | | | | | | | | | | | | | | | | The Kconfig currently controlling compilation of this code is: drivers/mfd/Kconfig:config MFD_SYSCON drivers/mfd/Kconfig: bool "System Controller Register R/W Based on Regmap" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_init was not in use by this code, the init ordering remains unchanged with this commit. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Set name of regmap_configJeffy Chen2018-05-161-0/+1
| | | | | | | | We are now allowing to register debugfs without a valid device, and not having a valid name will end up using "dummy*" to create debugfs dir. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Set regmap name to DT node nameDavid Lechner2018-05-161-0/+1
| | | | | | | | | This sets the regmap name to the device tree node name. This is useful for debugging. Signed-off-by: David Lechner <david@lechnology.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Add hardware spinlock supportBaolin Wang2018-01-121-0/+19
| | | | | | | | | | | Some system control registers need hardware spinlock to synchronize between the multiple subsystems, so we should add hardware spinlock support for syscon. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* mfd: syscon: Support native-endian regmapsPaul Burton2016-11-251-1/+3
| | | | | | | | | | | | | | | | The regmap devicetree binding documentation states that a native-endian property should be supported as well as big-endian & little-endian, however syscon in its duplication of the parsing of these properties omits support for native-endian. Fix this by setting REGMAP_ENDIAN_NATIVE when a native-endian property is found. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Make syscon_regmap_config constPhilipp Zabel2016-03-161-5/+5
| | | | | | | | syscon_regmap_config can be made const if syscon_probe() creates a local copy on the stack, just like syscon_register() does. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Set regmap max_register in of_syscon_registerPhilipp Zabel2016-03-161-1/+8
| | | | | | | | | Determine the regmap max_register configuration from the io resource size and the reg-io-width device tree property. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Add a DT property to set value widthDamien Riegel2016-01-111-0/+13
| | | | | | | | | | | | | | | | | | | | | Currently syscon has a fixed configuration of 32 bits for register and values widths. In some cases, it would be desirable to be able to customize the value width. For example, certain boards (like the ones manufactured by Technologic Systems) have a FPGA that is memory-mapped, but its registers are only 16-bit wide. This patch adds an optional "reg-io-width" DT binding for syscon that allows to change the width for the data bus (i.e. val_bits). If this property is provided, it will also set the register stride to reg-io-width's value. If not provided, the default configuration is used. Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds2014-12-151-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
| * mfd: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | | | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | mfd: syscon: Decouple syscon interface from platform devicesPankaj Dubey2014-11-251-22/+74
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently a syscon entity can be only registered directly through a platform device that binds to a dedicated syscon driver. However in certain use cases it is desirable to make a device used with another driver a syscon interface provider. For example, certain SoCs (e.g. Exynos) contain system controller blocks which perform various functions such as power domain control, CPU power management, low power mode control, but in addition contain certain IP integration glue, such as various signal masks, coprocessor power control, etc. In such case, there is a need to have a dedicated driver for such system controller but also share registers with other drivers. The latter is where the syscon interface is helpful. In case of DT based platforms, this patch decouples syscon object from syscon platform driver, and allows to create syscon objects first time when it is required by calling of syscon_regmap_lookup_by APIs and keep a list of such syscon objects along with syscon provider device_nodes and regmap handles. For non-DT based platforms, this patch keeps syscon platform driver structure so that syscon can be probed and such non-DT based drivers can use syscon_regmap_lookup_by_pdev API and access regmap handles. Once all users of "syscon_regmap_lookup_by_pdev" migrated to DT based, we can completely remove platform driver of syscon, and keep only helper functions to get regmap handles. Suggested-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Tomasz Figa <tomasz.figa@gmail.com> Tested-by: Vivek Gautam <gautam.vivek@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'mfd-for-linus-3.16' of ↵Linus Torvalds2014-06-061-1/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next Pull MFD updates from Lee Jones: "Changes to existing drivers: - increase DT coverage: arizona, mc13xxx, stmpe-i2c, syscon, sun6i-prcm - regmap use of and/or clean-up: tps65090, twl6040 - basic renaming: max14577 - use new cpufreq helpers: db8500-prcmu - increase regulator support: stmpe, arizona, wm5102 - reduce legacy GPIO overhead: stmpe - provide necessary remove path: bcm590xx - expand sysfs presence: kempld - move driver specific code out to drivers: rtc-s5m, arizona - clk handling: twl6040 - use managed (devm_*) resources: ipaq-micro - clean-up/remove unused/duplicated code: tps65218, sec, pm8921, abx500-core, db8500-prcmu, menelaus - build/boot/sematic bug fixes: rtsx_usb, stmpe, bcm590xx, abx500, mc13xxx, rdc321x-southbridge, mfd-core, sec, max14577, syscon, cros_ec_spi - constify stuff: sm501, tps65910, tps6507x, tps6586x, max77686, max8997, kempld, max77693, max8907, rtsx_usb, db8500-prcmu, max8998, wm8400, sec, lp3943, max14577, as3711, omap-usb-host, ipaq-micro Support for new devices: - add support for max77836 into max14577 - add support for tps658640 into tps6586x - add support for cros-ec-i2c-tunnel into cros_ec - add new driver for rtsx_usb_sdmmc and rtsx_usb_ms - add new driver for axp20x - add new driver for sun6i-prcm - add new driver for ipaq-micro" * tag 'mfd-for-linus-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (77 commits) mfd: wm5102: Correct default for LDO Control 2 register mfd: menelaus: Use module_i2c_driver mfd: tps65218: Terminate of match table mfd: db8500-prcmu: Remove check for CONFIG_DBX500_PRCMU_DEBUG mfd: ti-keystone-devctrl: Add bindings for device state control mfd: palmas: Format the header file mfd: abx500-core: Remove unused function abx500_dump_all_banks() mfd: arizona: Correct addresses of always-on trigger registers mfd: max14577: Cast to architecture agnostic data type i2c: ChromeOS EC tunnel driver mfd: cros_ec: Sync to the latest cros_ec_commands.h from EC sources mfd: cros_ec: spi: Increase cros_ec_spi deadline from 5ms to 100ms mfd: cros_ec: spi: Make the cros_ec_spi timeout more reliable mfd: cros_ec: spi: Add mutex to cros_ec_spi mfd: cros_ec: spi: Calculate delay between transfers correctly mfd: arizona: Correct error message for addition of main IRQ chip mfd: wm8997: Add registers for high power mode mfd: arizona: Add MICVDD to mapped regulators mfd: ipaq-micro: Make mfd_cell array const mfd: ipaq-micro: Use devm_ioremap_resource() ...
| * mfd: syscon: Allow property as NULL in syscon_regmap_lookup_by_phandlePankaj Dubey2014-06-031-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | If we pass syscon device node itself as first parameter to this function there is no need to parse and find syscon device node. So by allowing "property" parameter as NULL allow syscon_regmap_lookup_by_phandle to consider passed argument "np" itself as a syscon device node "syscon_np". This will help us in avoiding addition of "syscon" property in a device node which points back to same device node in device tree. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | mfd: syscon: Add platform data with a regmap config namePawel Moll2014-05-151-0/+4
|/ | | | | | | | | | Define syscon platform data structure that can be used to define a regmap config name. This is particularly useful in the regmap debugfs when there is more than one syscon device registered, to distinguish the register blocks. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Acked-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Simplify syscon_match_pdevname()Alexander Shiyan2014-03-191-7/+0
| | | | | | | | | Since we do not want to add new platform IDs for the syscon driver, there is no reason to iterate over IDs. This patch simplifies syscon_match_pdevname() function to remove such iteration. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: syscon: Move diagnostic messages to dev_dbg()Alexander Shiyan2014-03-191-1/+1
| | | | | | | | This patch moves diagnostic messages used for debugging purposes to dev_dbg(). Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'mfd-3.12-1' of ↵Linus Torvalds2013-09-081-4/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next Pull MFD (multi-function device) updates from Samuel Ortiz: "For the 3.12 merge window we have one new driver for the DA9063 PMIC from Dialog Semiconductor. Besides that driver we also have: - Device tree support for the s2mps11 driver - More devm_* conversion for the pm8921, max89xx, menelaus, tps65010, wl1273 and pcf50633-adc drivers. - A conversion to threaded IRQ and IRQ domain for the twl6030 driver. - A fairly big update for the rtsx driver: Better power saving support, better vendor settings handling, and a few fixes. - Support for a couple more boards (COMe-bHL6 and COMe-cTH6) for the Kontron driver. - A conversion to the dev_get_platdata() API for all MFD drivers. - A removal of non-DT (legacy) support for the twl6040 driver. - A few fixes and additions (Mic detect level) to the wm5110 register tables. - Regmap support for the davinci_voicecodec driver. - The usual bunch of minor cleanups and janitorial fixes" * tag 'mfd-3.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (81 commits) mfd: ucb1x00-core: Rewrite ucb1x00_add_dev() mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for event name mfd: ab8500-debugfs: Apply a check for -ENOMEM after allocating memory for sysfs mfd: timberdale: Use module_pci_driver mfd: timberdale: Remove redundant break mfd: timberdale: Staticize local variables mfd: ab8500-debugfs: Staticize local variables mfd: db8500-prcmu: Staticize clk_mgt mfd: db8500-prcmu: Use ANSI function declaration mfd: omap-usb-host: Staticize usbhs_driver_name mfd: 88pm805: Fix potential NULL pdata dereference mfd: 88pm800: Fix potential NULL pdata dereference mfd: twl6040: Use regmap for register cache mfd: davinci_voicecodec: Provide a regmap for register I/O mfd: davinci_voicecodec: Remove unused read and write functions mmc: memstick: rtsx: Modify copyright comments mmc: rtsx: Clear SD_CLK toggle enable bit if switching voltage fail mfd: mmc: rtsx: Change default tx phase mfd: pcf50633-adc: Use devm_*() functions mfd: rtsx: Copyright modifications ...
| * mfd: syscon: Remove "base" field from private driver dataAlexander Shiyan2013-07-311-4/+4
| | | | | | | | | | | | | | | | | | | | | | During a move to use managed resources, the .remove function all was deemed superfluous which subsequently led to its deletion. As there are no remaining users of the stored 'base' address we only have to use it locally during probe. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | ARM: clps711x: Remove the special name for the syscon driverAlexander Shiyan2013-08-141-3/+0
|/ | | | | | | | | This is a partial revert of the patch: "6597619f9c ARM: clps711x: Add support for SYSCON driver". No reason to make SYSCON driver name unique to that processor. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: clps711x: Add support for SYSCON driverAlexander Shiyan2013-06-121-0/+3
| | | | | | | | | | This patch adds support for SYSCON driver for CLPS711X targets. At this time there are no users for this driver, but it is will be used as start point to use in CLPS711X drivers and remove <mach/xx> dependencies. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Olof Johansson <olof@lixom.net>
* mfd: syscon: Fix warnings when printing resource_size_tAlexander Shiyan2013-04-091-1/+1
| | | | | | | | | | | Gets rid of these warnings when compile module for 64 bit targets: CC drivers/mfd/syscon.o drivers/mfd/syscon.c: In function 'syscon_probe': drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'resource_size_t' [-Wformat] drivers/mfd/syscon.c:155:2: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat] Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: syscon: Add non-DT supportAlexander Shiyan2013-04-051-30/+45
| | | | | | | | | | | This patch allow using syscon driver from the platform data, i.e. possibility using driver on systems without oftree support. For search syscon device from the client drivers, "syscon_regmap_lookup_by_pdevname" function was added. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: syscon: Removed unneeded field "dev" from private driver structureAlexander Shiyan2013-04-051-4/+1
| | | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: syscon: Fix sparse warningFabio Estevam2013-02-141-0/+1
| | | | | | | | | | | | Fix the following sparse warnings: drivers/mfd/syscon.c:40:15: warning: symbol 'syscon_node_to_regmap' was not declared. Should it be static? drivers/mfd/syscon.c:56:15: warning: symbol 'syscon_regmap_lookup_by_compatible' was not declared. Should it be static? drivers/mfd/syscon.c:72:15: warning: symbol 'syscon_regmap_lookup_by_phandle' was not declared. Should it be static? Cc: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: remove use of __devexitBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mfd: remove use of __devinitBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mfd: remove use of __devexit_pBill Pemberton2012-11-281-1/+1
| | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mfd: Add syscon driver based on regmapDong Aisheng2012-09-171-0/+176
Add regmap based syscon driver. This is usually used for access misc bits in registers which does not belong to a specific module, for example, IMX IOMUXC GPR and ANATOP. With this driver, client can use generic regmap API to access registers which are registered into syscon. Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 20:30:41 +0100