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path: root/drivers/mfd/twl-core.c
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2019-08-12mfd: twl-core: Convert to i2c_new_dummy_deviceWolfram Sang
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner
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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-02mfd: twl-core: Disable IRQ while suspendedAndreas Kemnade
Since commit 6e2bd956936 ("i2c: omap: Use noirq system sleep pm ops to idle device for suspend") on gta04 we have handle_twl4030_pih() called in situations where pm_runtime_get() in i2c-omap.c returns -EACCES. [ 86.474365] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. [ 86.485473] printk: Suspending console(s) (use no_console_suspend to debug) [ 86.555572] Disabling non-boot CPUs ... [ 86.555664] Successfully put all powerdomains to target state [ 86.563720] twl: Read failed (mod 1, reg 0x01 count 1) [ 86.563751] twl4030: I2C error -13 reading PIH ISR [ 86.563812] twl: Read failed (mod 1, reg 0x01 count 1) [ 86.563812] twl4030: I2C error -13 reading PIH ISR [ 86.563873] twl: Read failed (mod 1, reg 0x01 count 1) [ 86.563903] twl4030: I2C error -13 reading PIH ISR This happens when we wakeup via something behing twl4030 (powerbutton or rtc alarm). This goes on for minutes until the system is finally resumed. Disable the irq on suspend and enable it on resume to avoid having i2c access problems when the irq registers are checked. Fixes: 6e2bd956936 ("i2c: omap: Use noirq system sleep pm ops to idle device for suspend") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-01-03mfd: twl-core: Fix section annotations on {,un}protect_pm_masterNathan Chancellor
When building the kernel with Clang, the following section mismatch warning appears: WARNING: vmlinux.o(.text+0x3d84a3b): Section mismatch in reference from the function twl_probe() to the function .init.text:unprotect_pm_master() The function twl_probe() references the function __init unprotect_pm_master(). This is often because twl_probe lacks a __init annotation or the annotation of unprotect_pm_master is wrong. Remove the __init annotation on the *protect_pm_master functions so there is no more mismatch. Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-06-12treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-16mfd: twl-core: Fix clock initializationPeter Ujfalusi
When looking up the clock we must use the client->dev as device since that is the one which is probed via DT. Cc: stable@vger.kernel.org # 4.16+ Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05mfd: twl-core: Improve the documentationDan Carpenter
Saying it "returns the result" seems tautological. The read function does not return num_bytes on success, it returns zero on success. I noticed this discrepancy because some of the callers were checking for >= 0. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-04mfd: twl: Move header file out of I2C realmWolfram Sang
include/linux/i2c is not for client devices. Move the header file to a more appropriate location. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-10-04mfd: twl-core: Make it explicitly non-modularPaul Gortmaker
The Kconfig currently controlling compilation of this code is: drivers/mfd/Kconfig:config TWL4030_CORE drivers/mfd/Kconfig: bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support" ...meaning that it currently is not being built as a module by anyone. Lets remove what modular code that we can, so that when reading the driver there is less doubt that it is builtin-only. Note that we can't remove the twl_remove() itself ; it is still used by the probe unwind routine. So we leave it linked into the .remove as well, even though it will most likely never be called via that path from an unbind. Since module_i2c_driver() uses the same init level priority as builtin_i2c_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. 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: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-29mfd: twl-core: Refactoring for add_numbered_child()Markus Elfring
Adjust jump targets according to the Linux coding style convention. Another check for the variable "status" can be omitted then at the end. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-06-29mfd: twl-core: Return directly after a failed platform_device_alloc() in ↵Markus Elfring
add_numbered_child() The platform_device_put() function was called in one case by the add_numbered_child() function during error handling even if the passed variable "pdev" contained a null pointer. Return directly in this case. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-08-05twl4030_charger: use runtime_pm to keep usb phy active while charging.NeilBrown
The twl4030 usb phy needs to be active while we are using the USB VBUS as a current source for charging. In particular, the usb3v1 regulator must be enabled and the PHY_PWR_PHYPWD bit must be set to keep the phy powered. commit ab37813f4093a5f59cb8e083cde277289dc72ed3 twl4030_charger: Allow charger to control the regulator that feeds it gave the charger control over the regulator, but didn't resolve the PHY_PWR_PHYPWD issue. Now that both of these are controlled by runtime_pm in phy-twl4030-usb, we can simply take a runtime_pm reference to the USB phy whenever the charger wants to use it as a current source. So this patch reverts the above commit, and adds the necessary runtime_pm calls. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-01-22mfd: twl-core: Constify struct regmap_config and reg_default arrayKrzysztof Kozlowski
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Make array of struct reg_default const as well. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-05-06Merge tag 'ib-mfd-omap-3.16' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into omap-for-v3.16/pm Immutable branch between MFD and ARM OMAP due for v3.16 merge-window.
2014-04-23mfd: twl-core: Fix idle mode signaling for omaps when booted with device treeTony Lindgren
I noticed a regression where the omap sys_clkreq signal will never trigger for omap3 when booted with device tree while it triggers when booted in legacy mode. This means voltage scaling does not do anything when booted with device tree. Turns out the reason is we fail to initialize the SmartReflex enable bit in twl4030 with the following error: twl: not initialized And that happens because we are wrongly tinkering with the twl4030 registers in arch/arm/mach-omap2/omap_twl.c before the driver is initialized. Looking at the the SmartReflex bit enable code in omap_twl.c, we need to always set it. So let's fix the issue by always enabling the twl4030 SmartReflex bit in the drivers/mfd/twl-core.c probe, and drop the related code in omap_twl.c. Note that we still have some twl4030 tinkering left in omap_twl.c for the twl6030 case, but that's a different patch. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-19mfd: twl-core: Fix accessibility of some twl4030 audio registersTomas Novotny
There are some unused registers in twl4030 at I2C address 0x49 and function twl4030_49_nop_reg() is used to check accessibility of that registers. These registers are written in decimal format but the values are correct in hexadecimal format. (It can be checked few lines above the patched code - these registers are marked as unused there.) As a consequence three registers of audio submodule are treated as inaccessible (preamplifier carkit right and both handsfree registers). Cc: stable@vger.kernel.org Signed-off-by: Tomas Novotny <tomas@novotny.cz> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21Merge tag 'ib-asoc-3.14.2' into for-mfd-nextLee Jones
Immutable branch between MFD and ASoC due for the v3.14 merge window
2014-01-21mfd: twl-core: Fix passing of platform data in the device tree caseTony Lindgren
Since we still need to rely on a mix of device tree initialized drivers and legacy platform data initialize drivers, let's fix the passing of platform data to twl4030-gpio. As the twl4030 GPIO is initialized by twl-core.c, we need to register the auxdata for twl4030 GPIO in twl-core.c. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21mfd: twl-core: Clean up module by removing twl603x pdata handlingRuslan Ruslichenko
Since currently nobody uses TWL603x platform data and all new users will supply it through device tree, handling of these data within twl-core will never be used, so remove it. Signed-off-by: Ruslan Ruslichenko <ruslan.ruslichenko@globallogic.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08mfd: twl-core: Enable regcache for audio registersPeter Ujfalusi
Enable regmap's regcache for the audio registers: i2c address 0x49, register range 0x01 - 0x49 Mark all other registers as volatile to avoid any side effect for the non audio functions behind 0x49 i2c address. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08mfd: twl-core: API to set the regcache bypass for a given regmap in twlPeter Ujfalusi
If the regcache is enabled on the regmap module drivers might need to access to HW register(s) in certain cases in cache bypass mode. As an example of this is the audio block's ANAMICL register. In normal operation the content can be cached but during initialization one bit from the register need to be monitored. With the twl_set_regcache_bypass() the client driver can switch regcache bypass on and off when it is needed so we can utilize the regcache for more registers. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-08mfd: twl-core: Simplify IO wrapper functions by moving common code outPeter Ujfalusi
The new twl_get_regmap() function will return a pointer to the regmap needed for the given module. Since both read and write function were using the same code to do the lookup we can reuse this in both places to simplify the code. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-07-31mfd: Use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-06-20mfd: twl-core: Change TWL6025 references to TWL6032Graeme Gregory
The TWL6025 was never released beyond sample form and was replaced by the PhoenixLite range of chips - TWL6032. Change the references to reference the TWL6032 class and name the registers to twl6032 in line with an actual released chip name to avoid confusion. Currently there are no users of TWL6025 in the code. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org> Reviwed-by: Mark Brown <broonie@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-19mfd: twl4030-power: Split from twl-core into a dedicated moduleFlorian Vaussard
For now, the call to twl4030-power is hard-wired inside twl-core. To ease the future transition to DT, make twl4030-power as a separate module, like what is already done for twl4030-audio and others. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-11mfd: twl-core: Convert to module_i2c_driver()Grygorii Strashko
Shift TWL initialization to module/device init layer, because I2C now is not initialized on subsys init layer and shifted to module/device init layer instead. The I2C <--> TWL dependency should be resolved in drivers/Makefile now. Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Fix kernel panic on bootJon Hunter
Commit 8a6aaa3 (mfd: twl-core: Collect global variables behind one private structure (global)) removed the variable "inuse" that is used to determine if the device has been initialised and now use the twl_priv structure instead. This is causing the kernel to panic on OMAP3+ devices using the twl driver, because we try to access the twl_priv->ready member before checking if twl_priv is initialised. Fix this and move this test to the beginning of the twl_i2c_read/write function because twl_get_last_module() also uses the twl_priv structure. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Move twl_i2c_read/write_u8 to header as inline functionPeter Ujfalusi
twl_i2c_read/write_u8 become as a simple wrapper over the twl_i2c_read/write. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Remove no longer valid comment regarding to write buffer sizePeter Ujfalusi
With the regmap conversion there is no longeer a need to allocate bigger buffer for writes Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Collect global variables behind one private structure (global)Peter Ujfalusi
Gather the global variables under a single structure and allocate it with devm_kzalloc(). It is easier to see them and if in the future we try to add support for multiple instance of twl in the system it is going to be much simpler. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Move 'inuse' check early at probe timePeter Ujfalusi
We can fail earlier in case multiple instance of the twl-core is tried to be loaded. The twl-core by design only supports one instance. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Do not create dummy pdata when booted with DTPeter Ujfalusi
When booted with DT we can manage without the dummy pdata. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Do not try to call legacy mfd add_children() when booted with DTPeter Ujfalusi
There is really no point to retry to add children devices in case the of_platform_populate() fails. We do not have any information provided via pdata in this case anyways. Depending on the boot type (legacy or DT) only execute either one. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Allocate twl_modules dynamicallyPeter Ujfalusi
At boot time we can allocate the twl_modules array dynamically based on the twl class we are using with devm_kzalloc() instead of the static twl_modules[] array. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Use the lookup table to find the correct subchip for the modulesPeter Ujfalusi
Instead of using SUB_CHIP_ID* or magic numbers use the twl_mapping table to look for the subchip ID. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: No need to check for invalid subchip IDPeter Ujfalusi
The module id table no longer can have invalid/unused entries. No need for checking the ID for validity. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Clean up module id lookup and definitionsPeter Ujfalusi
Use enums for all module definitions: twl_module_ids for common functionality among twl4030/twl6030 twl4030_module_ids for twl4030 specific ids twl6030_module_ids for twl6030 specific ids In this way the list can be managed easier when new functionality going to be implemented. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-12-16Merge tag 'mfd-3.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
2012-12-11Merge tag 'driver-core-3.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the large driver core updates for 3.8-rc1. The biggest thing here is the various __dev* marking removals. This is going to be a pain for the merge with different subsystem trees, I know, but all of the patches included here have been ACKed by their various subsystem maintainers, as they wanted them to go through here. If this is too much of a pain, I can pull all of them out of this tree and just send you one with the other fixes/updates and then, after 3.8-rc1 is out, do the rest of the removals to ensure we catch them all, it's up to you. The merges should all be trivial, and Stephen has been doing them all in linux-next for a few weeks now quite easily. Other than the __dev* marking removals, there's nothing major here, some firmware loading updates and other minor things in the driver core. All of these have (much to Stephen's annoyance), been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio update. * tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits) modpost.c: Stop checking __dev* section mismatches init.h: Remove __dev* sections from the kernel acpi: remove use of __devinit PCI: Remove __dev* markings PCI: Always build setup-bus when PCI is enabled PCI: Move pci_uevent into pci-driver.c PCI: Remove CONFIG_HOTPLUG ifdefs unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs sh/PCI: Remove CONFIG_HOTPLUG ifdefs powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs mips/PCI: Remove CONFIG_HOTPLUG ifdefs microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs dma: remove use of __devinit dma: remove use of __devexit_p firewire: remove use of __devinitdata firewire: remove use of __devinit leds: remove use of __devexit leds: remove use of __devinit leds: remove use of __devexit_p mmc: remove use of __devexit ...
2012-11-28mfd: remove use of __devinitBill Pemberton
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>
2012-11-21mfd: twl-core: Change TWL4030_MODULE_* ids to TWL_MODULE_*Peter Ujfalusi
To facilitate upcoming cleanup in twl stack. No functional changes. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl-core: re-group the twl_mapping table for easier readingPeter Ujfalusi
Group the twl_mapping table in 5 lines chunks so it is more easier to find the row we are looking for (if we need to). Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl: Convert module id definitions to enumsPeter Ujfalusi
Use enum list for the module definitions (TWL4030_MODULE_*) which will ease up future work with the IDs. At the same time group the IDs in block of five so it is easier to find the ID we are looking for (to count the number they stand for). At the same time define TWL_MODULE_LED so client drivers can switch to use it as soon as it is possible. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl-core: Clean up and correct child registrationPeter Ujfalusi
Make the twl child registration calls a bit more uniform by always using the SUB_CHIP_ID* define instead of the mixed use of the define and magic number. At the same time correct the following devices so they are registered for the correct parent device (i2c slave): twl4030_wdt is accessible on 0x4b address and not 0x48 twl4030_pwrbutton is accessible on 0x4b address and not 0x49 twl4030-audio is on 0x49 all the time Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd/rtc/gpio: twl: No need to allocate bigger buffer for writePeter Ujfalusi
Since the twl-core has been converted to use regmap it is no longer needed to allocate bigger buffer for data when writing to twl. CC: Grant Likely <grant.likely@secretlab.ca> CC: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl-core: Convert to use regmap for I/OPeter Ujfalusi
Remove the custom code to do I/O and replace it with standard regmap calls. Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl-core: Support for proper PWM driversPeter Ujfalusi
The twl6030-pwm driver is going to be deleted since it was only able to control the Charging indicator LED on the twl6030 PMIC. The new set of drivers are going to provide support for both PWMs and PWM driven LED outputs on TWL4030 and TWL6030 PMICs. The twl-pwm driver will handle the PWMs (2 instance) while the twl-pwmled driver is to control the two LED instance on TWL4030 and to charging indicator LED (1 instance) on TWL6030. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-21mfd: twl-core: Register twl4030-madc child only for twl4030 classPeter Ujfalusi
twl4030-madc driver can only handle twl4030 class MADC. The newer revisions of twl does not have MADC, instead they have different IP called GPADC which is not backward compatible. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20mfd: twl-core: Fix chip ID for the twl6030-pwm modulePeter Ujfalusi
The correct chip id is 1 since the PWM module is on address 0x49. With the current TWL6030_MODULE_ID1 the kernel will crash early since we have: #define TWL6030_MODULE_ID1 0x0E and static struct twl_client twl_modules[4]; Down in the stack we try to get the module by: struct twl_client *twl = &twl_modules[chip]; Which is obviously going to do nasty things. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-10-05Merge tag 'mfd-3.7-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD changes from Samuel Ortiz: "MFD bits for the 3.7 merge window. As usual we have a few new drivers: - TI LP8788 - TI OMAP USB TLL - Maxim MAX8907 - SMSC ECE1099 - Dialog Semiconductor DA9055 - A simpler syscon driver that allow us to get rid of the anatop one. Drivers are also gradually getting Device Tree and IRQ domain support. The following drivers got DT support: - palmas, 88pm860x, tc3589x and twl4030-audio And those ones now use the IRQ domain APIs: - 88pm860x, tc3589x, db8500_prcmu Also some other interesting changes: - Intel's ICH LPC now supports Lynx Point - TI's twl4030-audio added a GPO child - tps6527 enabled its backlight subdevice - The twl6030 pwm driver moved to the new PWM subsystem And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x, palmas, ab8500, wm8994, wm5110, max8907 and the tps65xxx family." Fix up various annoying conflicts: the DT and IRQ domain support came in twice and was already in 3.6. And then it was apparently rebased. Guys, DON'T REBASE! * tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits) ARM: dts: Enable 88pm860x pmic mfd: 88pm860x: Move gpadc init into touch mfd: 88pm860x: Device tree support mfd: 88pm860x: Use irqdomain mfd: smsc: Add support for smsc gpio io/keypad driver backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe mfd: DA9055 core driver mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list mfd: wm5110: Add register patches for revision B mfd: wm5110: Disable control interface error report for WM5110 rev B mfd: max8907: Remove regulator-compatible from DT docs backlight: Add TPS65217 WLED driver mfd: Add backlight as subdevice to the tps65217 mfd: Provide the PRCMU with its own IRQ domain mfd: Fix max8907 sparse warning mfd: Add lp8788 mfd driver mfd: dbx500: Provide a more accurate smp_twd clock mfd: rc5t583: Fix warning messages regulator: palmas: Add DT support mfd: palmas: Change regulator defns to better suite DT ...
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