#
104d32bd |
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16-Jun-2023 |
Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
mfd: stmpe: Only disable the regulators if they are enabled In stmpe_probe(), if some regulator_enable() calls fail, probing continues and there is only a dev_warn(). So, if stmpe_probe() is called the regulator may not be enabled. It is cleaner to test it before calling regulator_disable() in the remove function. Fixes: 9c9e321455fb ("mfd: stmpe: add optional regulators") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/8de3aaf297931d655b9ad6aed548f4de8b85425a.1686998575.git.christophe.jaillet@wanadoo.fr Signed-off-by: Lee Jones <lee@kernel.org>
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#
1ba58fbb |
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10-Mar-2023 |
Rob Herring <robh@kernel.org> |
mfd: various: Use of_property_present() for testing DT property presence It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230310144712.1543379-1-robh@kernel.org
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#
f7f292fe |
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23-Oct-2022 |
Paul Cercueil <paul@crapouillou.net> |
mfd: stmpe: Remove #ifdef guards for PM related functions Use the new EXPORT_GPL_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to handle the .suspend/.resume callbacks. These macros allow the suspend and resume functions to be automatically dropped by the compiler when CONFIG_SUSPEND is disabled, without having to use #ifdef guards. This has the advantage of always compiling these functions in, independently of any Kconfig option. Thanks to that, bugs and other regressions are subsequently easier to catch. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Lee Jones <lee@kernel.org>
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#
ac3e9119 |
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06-Sep-2022 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
mfd: stmpe: Switch to using gpiod API This patch switches the driver away from legacy gpio/of_gpio API to gpiod API, and removes use of of_get_named_gpio_flags() which I want to make private to gpiolib. We also need to patch relevant DTS files, as the original code relied on the fact that of_get_named_gpio_flags() would fetch any data encoded in GPIO flags, even if it does not reflect valid flags for a GPIO. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/YxeS1BK2OBH1P/kO@google.com
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#
d7667f19 |
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12-Jul-2022 |
Francesco Dolcini <francesco.dolcini@toradex.com> |
mfd: stmpe: Probe sub-function by compatible Use sub-function of_compatible during probe, instead of using the node name. The code should not rely on the node names during probe, in addition to that the previously hard-coded node names are not compliant to the latest naming convention (they are not generic and they use underscores), and it was broken by mistake already once [1]. [1] commit 56086b5e804f ("ARM: dts: imx6qdl-apalis: Avoid underscore in node name") Suggested-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220712163345.445811-3-francesco.dolcini@toradex.com
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#
8c435297 |
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12-Jul-2022 |
Francesco Dolcini <francesco.dolcini@toradex.com> |
mfd: stmpe: Remove rotator block from probe Remove rotator block from probe, it is not used in any device tree file, there is no related cell defined, it's just dead non-working code with no of_compatible for it. This is a preliminary change to allow probing by of_compatible and not by a fixed name. Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220712163345.445811-2-francesco.dolcini@toradex.com
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#
786c6f14 |
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27-Oct-2021 |
Oleksandr Suvorov <oleksandr.suvorov@toradex.com> |
mfd: stmpe: Support disabling sub-functions Add support of sub-functions disabling. It allows one to define an stmpe sub-function device in devicetree, but keep it disabled. Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20211027082155.206449-1-francesco.dolcini@toradex.com
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#
356bbaba |
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12-Oct-2021 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
mfd: stmpe: Make stmpe_remove() return void Up to now stmpe_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20211012153945.2651412-10-u.kleine-koenig@pengutronix.de
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#
9ff80e2d |
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25-Jul-2021 |
Marc Zyngier <maz@kernel.org> |
mfd: Don't use irq_create_mapping() to resolve a mapping Although irq_create_mapping() is able to deal with duplicate mappings, it really isn't supposed to be a substitute for irq_find_mapping(), and can result in allocations that take place in atomic context if the mapping didn't exist. Fix the handful of MFD drivers that use irq_create_mapping() in interrupt context by using irq_find_mapping() instead. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@foss.st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
cb9e880a |
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04-Mar-2021 |
Rikard Falkeborn <rikard.falkeborn@gmail.com> |
mfd: stmpe: Revert "Constify static struct resource" In stmpe_devices_init(), the start and end field of these structs are modified, so they can not be const. Add a comment to those structs that lacked it to reduce the risk that this happens again. This reverts commit 8d7b3a6dac4eae22c58b0853696cbd256966741b. Fixes: 8d7b3a6dac4e ("mfd: stmpe: Constify static struct resource") Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
8d7b3a6d |
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22-Sep-2020 |
Rikard Falkeborn <rikard.falkeborn@gmail.com> |
mfd: stmpe: Constify static struct resource 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: Rikard Falkeborn <rikard.falkeborn@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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1f67b599 |
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04-Jun-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 464 Based on 1 normalized pattern(s): license terms gnu general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081202.373849232@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6377cfa3 |
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21-Dec-2018 |
Stefan Agner <stefan@agner.ch> |
mfd: stmpe: Preparations for STMPE ADC driver This prepares the MFD for the STMPE ADC driver. This commit introduces devicetree settings that are used by the ADC and adds an init function. Common ADC settings that are shared with the touchscreen driver can now reside in the overlying MFD. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
38df91cc |
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05-Dec-2018 |
Rob Herring <robh@kernel.org> |
mfd: Use of_node_name_eq() for node name comparisons Convert string compares of DT node names to use of_node_name_eq() helper instead. This removes direct access to the node name pointer. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
b97eef5d |
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31-Mar-2017 |
Hugues Fruchet <hugues.fruchet@st.com> |
mfd: stmpe: Fix bit clearing on STMPE1600 GPIO bits clearing on pins assigned to STMPE1600 had no effects due to missing "clear registers" settings within stmpe1600_regs[]. STMPE1600 does not have dedicated "clear registers", but single "set/clear registers", hence stmpe1600_regs[] "clear registers" (STMPE_IDX_GPCR_XXX) must be set to same value as "set registers" (STMPE_IDX_GPSR_XXX), ie STMPE1600_REG_GPSR_XXX. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
f4058420 |
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01-Nov-2016 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: Fix RESET regression on STMPE2401 Since commit c4dd1ba355aae2bc3d1213da6c66c53e3c31e028 ("mfd: stmpe: Add reset support for all STMPE variant") we're resetting the STMPE expanders before use. This caused a regression on the STMP2401 on the Nomadik NHK8815: stmpe-i2c 0-0043: stmpe2401 detected, chip id: 0x101 nmk-i2c 101f8000.i2c0: write to slave 0x43 timed out nmk-i2c 101f8000.i2c0: no ack received after address transmission stmpe-i2c 0-0044: stmpe2401 detected, chip id: 0x101 nmk-i2c 101f8000.i2c0: write to slave 0x44 timed out nmk-i2c 101f8000.i2c0: no ack received after address transmission It turns out that we start to poll for the reset bit to go low again too quickly: the STMPE2401 is not yet online and ready to be asked for the status of the RESET bit. By introducing a 10ms delay before starting to hammer the register for information, we get back to normal: stmpe-i2c 0-0043: stmpe2401 detected, chip id: 0x101 stmpe-i2c 0-0044: stmpe2401 detected, chip id: 0x101 Cc: stable@vger.kernel.org Cc: Amelie Delaunay <amelie.delaunay@st.com> Fixes: c4dd1ba355aa ("mfd: stmpe: Add reset support for all STMPE variant") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
6bb9f0d9 |
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10-Aug-2016 |
Patrice Chotard <patrice.chotard@st.com> |
mfd: Add STMPE1600 support STMPE1600 is a 16-bit port expander. Datasheet is available here : http://www2.st.com/content/st_com/en/products/interfaces-and-transceivers/ i-o-expanders-and-level-translators/i-o-expanders/stmpe1600.html Signed-off-by: Amelie DELAUNAY <amelie.delaunay@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
897ac667 |
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10-Aug-2016 |
Patrice Chotard <patrice.chotard@st.com> |
mfd: stmpe: Rework registers access this update allows to use registers map as following : regs[reg_index + offset] instead of regs[reg_index] + offset This makes code clearer and will facilitate the addition of STMPE1600 on which LSB and MSB registers are respectively located at addr and addr + 1. Despite for all others STMPE variant, LSB and MSB registers are respectively located in reverse order at addr + 1 and addr. For variant which have 3 registers's bank, we use LSB,CSB and MSB indexes which contains respectively LSB (or LOW), CSB (or MID) and MSB (or HIGH) register addresses (STMPE1801/STMPE24xx). For variant which have 2 registers's bank, we use LSB and CSB indexes only. In this case the CSB index contains the MSB regs address (STMPE 1601). Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
c16bee78 |
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10-Aug-2016 |
Patrice Chotard <patrice.chotard@st.com> |
mfd: stmpe: Use generic bit mask name In order to prepare the ground to STMPE1600, as STMPE1600's SYS_CTRL register has the same layout as STMPE801 variant, unify STMPExxx_REG_SYS_CTRL_RESET/INT_EN/INT_HI bit masks to more generic STMPE_SYS_CTRL_RESET/INT_EN/INT_HI Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
c4dd1ba3 |
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10-Aug-2016 |
Patrice Chotard <patrice.chotard@st.com> |
mfd: stmpe: Add reset support for all STMPE variant Reset was only implemented for STMPE1801 variant despite all variant have a SOFT_RESET bit. For STMPE2401/2403/801/1601/1801 SOFT_RESET bit is bit 7 of SYS_CTRL register. For STMPE610/811 (which have the same variant id) SOFT_RESET bit is bit 1 of SYS_CTRL register. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
0f4be8cf |
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10-Aug-2016 |
Patrice Chotard <patrice.chotard@st.com> |
mfd: stmpe: Add STMPE_IDX_SYS_CTRL/2 enum As STMPE1801/1601/24xx has a SYS_CTRL register and STMPE1601/2403 has even a SYS_CTRL2 register, add STMPE_IDX_SYS_CTRL/2 and update driver code accordingly This update prepares the ground for not yet supported STMPE1600 which share similar REG_SYS_CTRL register. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
fc1882dc |
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25-May-2016 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: Move platform data into MFD driver The STMPE platform data is only populated from the device tree in all existing users, so push the struct and make the OF case the norm. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
b273c5e0 |
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14-Feb-2016 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: Add the proper PWM resources This adds the PWM resources to the STMPE MFD driver, so that it can properly grab and use them. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
f6d10341 |
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27-Aug-2015 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: PWM on 24xx has altfunc 1 On the STMPE2401 and STMPE2401 altfunction 1 corresponds to the PWM channels. This oneliner was missing in the case-switch, making it impossible to enable the PWM channel output. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
9bd09f34 |
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27-Jul-2015 |
Rob Herring <robh@kernel.org> |
mfd: Kill off set_irq_flags usage set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
7ce7b26f |
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27-Apr-2015 |
Krzysztof Kozlowski <krzk@kernel.org> |
mfd: Constify regmap and irq configuration data Constify in various drivers configuration data which is not modified: - regmap_irq_chip, - individual regmap_irq's in array, - regmap_config, - irq_domain_ops, Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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80e1dd82 |
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03-Nov-2014 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: add pull up/down register offsets for STMPE This adds the register offsets for pull up/down for the STMPE 1601, 1801 and 24xx expanders. This is used to bias GPIO lines and keypad lines. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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#
851ec596 |
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11-Sep-2014 |
Sean Cross <xobs@kosagi.com> |
mfd: stmpe: Support gpio over irq under device tree The stmpe_platform_data has a irq_over_gpio field, which allows the system to read STMPE events whenever an IRQ occurs on a GPIO pin. This patch adds the ability to configure this field and to use a GPIO as an IRQ source for boards configuring the STMPE in device tree. Signed-off-by: Sean Cross <xobs@kosagi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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7929fa77 |
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28-Aug-2014 |
Lee Jones <lee.jones@linaro.org> |
mfd: stmpe: Rid variable length array Sparse warnings Numbers are generated by taking the largest currently used values. drivers/mfd/stmpe.c:252:17: warning: Variable length array is used. drivers/mfd/stmpe.c:857:16: warning: Variable length array is used. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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c00572bc |
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02-Jul-2014 |
Lee Jones <lee.jones@linaro.org> |
mfd: stmpe: Rid data size incompatibility warn when building for 64bit Extinguishes: ../drivers/mfd/stmpe-i2c.c: In function ‘stmpe_i2c_probe’: ../drivers/mfd/stmpe-i2c.c:88:13: warning: cast from pointer to integer of different size partnum = (int)of_id->data; Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
9e9dc7d9 |
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08-May-2014 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: root out static GPIO and IRQ assignments The only platform using the STMPE expander now boots from device tree using all-dynamic GPIO and IRQ number assignments, so remove the mechanism to pass this from the device tree entirely. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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#
9c9e3214 |
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08-May-2014 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: add optional regulators The STMPE has VCC and VIO supply lines, and sometimes (as on Ux500) this comes from a software-controlled regulator. Make it possible to supply the STMPE with power from these regulators. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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#
b69d2ad6 |
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08-May-2014 |
Linus Walleij <linus.walleij@linaro.org> |
mfd: stmpe: mask off unused blocks properly The STMPE driver would just read/modify/write the system control register on the STMPE1601, meaning it would not properly mask off the PWM block, which remained active if it was on at boot time. This makes sure the blocks are always masked off if they were active on boot, saving some power. Also rename the inconsistenty named STMPE1601 define for the PWM block activation. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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#
52397fe1 |
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04-Feb-2014 |
Sachin Kamat <sachin.kamat@linaro.org> |
mfd: stmpe: Trivial: Remove unnecessary semicolon Semicolon is not necessary after the while statement. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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6bbb3c4c |
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18-Nov-2013 |
Geert Uytterhoeven <geert@linux-m68k.org> |
mfd: stmicro: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
a9c4055d |
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28-Jul-2013 |
Mark Brown <broonie@linaro.org> |
mfd: stmpe: Staticise stmpe_of_probe() It is only called from this file so there is no need for it to be in the global namespace and cause sparse to warn. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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#
1a5595cb |
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14-Jun-2013 |
Javier Martinez Canillas <javier@osg.samsung.com> |
mfd: stmpe: use irq_get_trigger_type() to get IRQ flags Use irq_get_trigger_type() to get the IRQ trigger type flags instead calling irqd_get_trigger_type(irq_get_irq_data(irq)) Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Grant Likely <grant.likely@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Link: http://lkml.kernel.org/r/1371228049-27080-5-git-send-email-javier.martinez@collabora.co.uk Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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#
230f13a5 |
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09-Apr-2013 |
Jean-Nicolas Graux <jean-nicolas.graux@stericsson.com> |
mfd: support stmpe1801 18 bits enhanced port expander Provides support for 1801 variant of stmpe gpio port expanders. This chip has 18 gpios configurable as GPI, GPO, keypad matrix, special key or dedicated key function. Note that special/dedicated key function is not supported yet. Signed-off-by: Jean-Nicolas Graux <jean-nicolas.graux@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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#
408a3fa8 |
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01-Mar-2013 |
Gabriel Fernandez <gabriel.fernandez@stericsson.com> |
mfd: stmpe: DT: Add stmpe-i2c dt alias to get id device This patch augments the STMP driver to read the device id from the stmpe-i2c dt alias if present. Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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a200e320 |
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01-Mar-2013 |
Gabriel Fernandez <gabriel.fernandez@stericsson.com> |
mfd: stmpe: DT: Enable no-irq mode configuration If there is no interrupt property into stmpe node then activate the no-irq mode by setting the irq value to -1. Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Gabriel Fernandez <gabriel.fernandez@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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612b95cd |
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21-Dec-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
Drivers: mfd: remove __dev* attributes. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ac713cc9 |
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07-Dec-2012 |
Vipul Kumar Samar <vipulkumar.samar@st.com> |
mfd: stmpe: Update DT support for stmpe driver This patch extends existing DT support for stmpe devices. This updates: - missing header files in stmpe.c - stmpe_of_probe() with pwm, rotator and new bindings. - Bindings are updated in binding document. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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86605cfe |
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26-Nov-2012 |
Vipul Kumar Samar <vipulkumar.samar@st.com> |
gpio: stmpe: Add DT support for stmpe gpio This patch allows the STMPE GPIO driver to be successfully probed and initialised when Device Tree support is enabled. Bindings are mentioned in Documentation too. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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12a5105e |
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28-Nov-2012 |
Viresh Kumar <viresh.kumar@linaro.org> |
mfd: stmpe: Get rid of irq_invert_polarity Since the very first patch, stmpe core driver is using irq_invert_polarity as part of platform data. But, nobody is actually using it in kernel till now. Also, this is not something part of hardware specs, but is included to cater some board mistakes or quirks. So, better get rid of it. This is earlier discussed here: https://lkml.org/lkml/2012/11/27/636 Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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20d5c7de |
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12-Nov-2012 |
Randy Dunlap <rdunlap@infradead.org> |
mfd: Fix stmpe.c build when OF is not enabled Fix build errors when CONFIG_OF is not enabled by including <linux/of.h> (needs to be added in any case). An alternative fix could be to make the driver depend on OF. drivers/mfd/stmpe.c:1025:2: error: implicit declaration of function 'of_property_read_u32' drivers/mfd/stmpe.c:1030:2: error: implicit declaration of function 'for_each_child_of_node' drivers/mfd/stmpe.c:1030:36: error: expected ';' before '{' token Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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b20a4371 |
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23-Nov-2012 |
Lee Jones <lee.jones@linaro.org> |
mfd: Simplify IRQ domain registration code in STMPE Historically, a driver would have to decide whether it required a Linear or Legacy IRQ domain when registering one. This can end up as quite a lot of code. A new Simple call now exists which simplifies this process. Let's make use of it here. Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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6ea32387 |
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14-Nov-2012 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Input: stmpe-keypad - add support for Device Tree bindings This patch allows the STMPE driver to be successfully probed and initialised when Device Tree support is enabled. Besides the usual platform data changes, we also separate the process of filling in the 'in use' pin bitmap, as we have to extract the information from Device Tree in the DT boot case. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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cb5faba9 |
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21-Nov-2012 |
Viresh Kumar <viresh.kumar@linaro.org> |
mfd: stmpe: Use devm_*() routines This patch frees stmpe driver from tension of freeing resources. devm_* derivatives of multiple routines are used while allocating resources, which would be freed automatically by kernel. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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037db524 |
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23-Nov-2012 |
Vipul Kumar Samar <vipulkumar.samar@st.com> |
Input: stmpe-ts - add DT support for stmpe touchscreen This patch allows the STMPE Touchscreen driver to be successfully probed and initialised when Device Tree support is enabled. Bindings are mentioned in Documentation too. Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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909582ca |
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05-Nov-2012 |
Lee Jones <lee.jones@linaro.org> |
mfd: Enable the STMPE MFD for Device Tree This patch allows the STMPE Multi-Functional Device to be correctly initialised when booting with Device Tree support enabled. Its children are specified by the addition of subordinate devices to the STMPE node in the Device Tree file. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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5204e51d |
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05-Nov-2012 |
Lee Jones <lee.jones@linaro.org> |
mfd: Correct copy and paste mistake in stmpe When specifying IRQ numbers for the stmpe1601, IRQ defines for the stmpe24xx were used instead. Fortunately, the defined numbers are the same, hence why it survived testing. This fix is merely an aesthetic one. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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76f93992 |
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05-Nov-2012 |
Lee Jones <lee.jones@linaro.org> |
mfd: Provide the STMPE driver with its own IRQ domain The STMPE driver is yet another IRQ controller which requires its own IRQ domain. So, we provide it with one. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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7da0cbfc |
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05-Nov-2012 |
Lee Jones <lee.jones@linaro.org> |
mfd: Prevent STMPE from abusing mfd_add_devices' irq_base parameter Originally IRQ incrementers were provided in some template resource structures for keypad and touchscreen devices. These were passed as IORESOURCE_IRQs to MFD core in the usual way. The true device IRQs were instead added to the irq_base when mfd_add_devices was invoked. This is clearly an abuse of the call, and does not scale when IRQ Domains are brought into play. Before we can provide the STMPE with its own IRQ Domain we must first fix this. This patche keeps most of the driver's structure, keeping the template strategy. However, instead of providing the IRQ as an increment to irq_base, we dynamically populate the IORESOURCE_IRQ with the correct device IRQ. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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0848c94f |
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11-Sep-2012 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mfd: core: Push irqdomain mapping out into devices Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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55692af5 |
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11-Sep-2012 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mfd: core: Push irqdomain mapping out into devices Currently the MFD core supports remapping MFD cell interrupts using an irqdomain but only if the MFD is being instantiated using device tree and only if the device tree bindings use the pattern of registering IPs in the device tree with compatible properties. This will be actively harmful for drivers which support non-DT platforms and use this pattern for their DT bindings as it will mean that the core will silently change remapping behaviour and it is also limiting for drivers which don't do DT with this particular pattern. There is also a potential fragility if there are interrupts not associated with MFD cells and all the cells are omitted from the device tree for some reason. Instead change the code to take an IRQ domain as an optional argument, allowing drivers to take the decision about the parent domain for their interrupts. The one current user of this feature is ab8500-core, it has the domain lookup pushed out into the driver. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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e31f9b82 |
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26-Jan-2012 |
Chris Blair <chris.blair@stericsson.com> |
mfd: Add support for no-interrupt stmpe config Adds support for boards which have an STMPE device without the interrupt pin connected. Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Chris Blair <chris.blair@stericsson.com> Tested-by: Michel Jaouen <michel.jaouen@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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8ad1a973 |
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20-Dec-2011 |
Samuel Ortiz <sameo@linux.intel.com> |
mfd: Fix stmpe section mismatch This fixes: WARNING: drivers/built-in.o(.text+0xf368f): Section mismatch in reference from the function stmpe_probe() to the function .devinit.text:stmpe_chip_init() The function stmpe_probe() references the function __devinit stmpe_chip_init(). Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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dba61c8f |
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20-Dec-2011 |
Samuel Ortiz <sameo@linux.intel.com> |
mfd: Fix stmpe build warning This fixes: drivers/mfd/stmpe.c:114:1: warning: data definition has no type or storage class [enabled by default] drivers/mfd/stmpe.c:114:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int] Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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7f7f4ea1 |
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16-Nov-2011 |
Viresh Kumar <vireshk@kernel.org> |
mfd: Add support for stmpe variant 801 STMPE801 is a GPIO expander. Registers for 801 are much different from other variants. This patch adds support for STMPE801 in stmpe mfd driver. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com> Signed-off-by: Pratyush Anand <pratyush.anand@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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1cda2394 |
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16-Nov-2011 |
Viresh Kumar <vireshk@kernel.org> |
mfd: Add support for stmpe variant 610 STMPE610 is very much like STMPE811, except the number of gpio pins, which is 8 in 811 and 6 in 610. This patch adds support for variant 610. STMPE610 will share most of the code with STMPE811. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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1a6e4b74 |
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16-Nov-2011 |
Viresh Kumar <vireshk@kernel.org> |
mfd: Separate out STMPE controller and interface specific code Few STMPE controller can have register interface over SPI or I2C. Current implementation only supports I2C and all code is present in a single file stmpe.c. It would be better to separate out I2C interface specific code from controller specific code. Later SPI specific code can be added in a separate file. This patch separates out I2C and controller specific code into separate files, making stmpe.c independent of I2C. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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73de16db |
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07-Nov-2011 |
Viresh Kumar <vireshk@kernel.org> |
mfd: Add support for irq over gpio pin to stmpe On many boards, stmpe is present as an separate device (not as part of SoC). Here gpio lines are mostly used for getting interrupts. This patch adds in support to handle irq over gpio pin. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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4dcaa6b6 |
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27-Jun-2011 |
Om Prakash <omprakash.pal@stericsson.com> |
mfd: Fix missing stmpe kerneldoc Generating kerneldoc for STMPE result in warnings, so fix this by adding missing documentation. Signed-off-by: Om Prakash <omprakash.pal@stericsson.com> Reviewed-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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d5bb1221 |
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25-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
mfd: Cleanup irq namespace Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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43b8c084 |
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11-Dec-2010 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mfd: Convert SMTPE driver to new irq_ APIs The genirq core is being updated to supply struct irq_data to irq_chip operations rather than an irq number. Update the SMTPE driver to the new APIs. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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208c4343 |
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14-Sep-2010 |
Sundar Iyer <sundar.iyer@stericsson.com> |
mfd: Add PM support to STMPE devices Add PM helpers to STMPE and add support to enable wakeup from low power states Acked-by: Rabin VINCENT <rabin.vincent@stericsson.com> Acked-by: Linus WALLEIJ <linus.walleij@stericsson.com> Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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5981f4e6 |
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21-Jul-2010 |
Sundar R Iyer <sundar.iyer@stericsson.com> |
mfd: Add stmpe auto sleep feature Some STMPE devices support entering sleep mode automatically on a specified timeout of inactivity on the I2C bus with the host system. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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27e34995 |
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02-Jul-2010 |
Rabin Vincent <rabin.vincent@stericsson.com> |
mfd: Add STMPE I/O Expander support Add support for the STMPE family of I/O Expanders from STMicroelectronics. These devices include upto 24 gpios and a varying selection of blocks, including PWM, keypad, and touchscreen controllers. This patch adds the MFD core. [l.fu@pengutronix.de: fix stmpe811 enable hook] [l.fu@pengutronix.de: add touchscreen platform data] Acked-by: Luotao Fu <l.fu@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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