- 22 Jun, 2015 32 commits
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Fabio Estevam authored
Since commit 1c6c6952 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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Fabio Estevam authored
Since commit 1c6c6952 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by:
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Fabio Estevam authored
Since commit 1c6c6952 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by:
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Hongzhou Yang authored
Signed-off-by:
Hongzhou Yang <hongzhou.yang@mediatek.com> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Charles Keepax authored
Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
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Steve Twiss authored
Add device tree bindings for the DA9063 OnKey driver. Signed-off-by:
Steve Twiss <stwiss.opensource@diasemi.com> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Steve Twiss authored
Add MFD support for the DA9063 OnKey driver The function da9063_clear_fault_log() is added to mitigate the case of a hardware power-cut after a long-long OnKey press. Although there is no software intervention in this case (by definition) such a shutdown would cause persistent information within the DA9063 FAULT_LOG that would be available during the next device restart. Clearance of this persistent register must be completed after such a hardware power-cut operation has happened so that the FAULT_LOG does not continue with previous values. The clearance function has been added here in the kernel driver because wiping the fault-log cannot be counted on outside the Linux kernel. Signed-off-by:
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Richard Fitzgerald authored
The use of ifneq against 'n' to conditionally compile codec-specific parts is wrong and was resulting in all the codec tables being built even for deselected codecs. Signed-off-by:
Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by:
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Richard Fitzgerald authored
For the WM5102 there is a dependency in the core code on wm5102_patch() which only exists when CONFIG_MFD_WM5102 is defined. To avoid having to sprinkle #ifdefs around the code it is given an alternative empty stub version when CONFIG_MFD_WM5102 is deselected Signed-off-by:
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Lorenzo Pieralisi authored
Current code in mfd-core calls into ACPI to check resources even on a system that booted with a DT (on kernels with both DT and ACPI support compiled in). This triggers ACPI exceptions since we may end up calling the ACPI interpreter when it has not been initialized: "ACPI Exception: AE_BAD_PARAMETER, Thread 2064154624 could not acquire Mutex [0x1] (20150410/utmutex-285)" This patch fixes the issues by adding a check for an ACPI companion device before carrying out ACPI resources checks to avoid calling the ACPI interpreter if the fwnode representing the device is an OF one. Cc: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by:
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Richard Fitzgerald authored
Signed-off-by:
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Richard Fitzgerald authored
Later arizona silicon has the single/differential selector in a different register, and IN1_MODE only selects between analogue or digital. Prepare for this by splitting the INx_MODE definition into two fields. Signed-off-by:
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Charles Keepax authored
On the wm5110 it is important the reset line is held for slightly longer to ensure the device starts up well. This patch adds a 5mS delay for this. Signed-off-by:
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Charles Keepax authored
Allow the chip to completely power off if we enter runtime suspend and there is no jack detection active. This is helpful for systems where system suspend might remove the supplies to the CODEC, without informing us. Note the powering off is done in runtime suspend rather than system suspend, because we need to hold reset until the first time DCVDD is powered anyway (which would be in runtime resume), and we might as well save the extra power. Signed-off-by:
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Charles Keepax authored
The low power sleep mode on wm5110 requires that the LDO1 regulator be set to 1.175V prior to entering sleep, then returned to 1.2V after exiting sleep mode. This patch apply these regulator settings. Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Charles Keepax authored
Some register settings must be applied before the first time low power sleep mode is entered on the wm5110 to ensure optimium performance. These settings require SYSCLK to be enabled whilst they are being applied. This patch applies the settings using the recently factored out boot time SYSCLK functionality. Signed-off-by:
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Charles Keepax authored
wm5102 applies a custom hardware boot sequence, for this the SYSCLK needs to be enabled. This patch factors out the code that enables SYSCLK for this sequence such that it can be used for other boot time operations that require SYSCLK. Signed-off-by:
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Charles Keepax authored
In preparation for some refactoring fixup some minor style, formating and code clarity issues. Signed-off-by:
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Charles Keepax authored
The wm5102 uses a custom boot sequence and the standard boot sequence is disabled. However, the standard boot sequence must be run at least once after a cold boot (caused by either a hard reset or removal of AVDD). Unfortunately the register WRITE_SEQUENCER_CTRL_3 is not affected by the hardware reset. This means if the device has been previously booted but the AVDD supply has never been removed, arizona_dev_init will reset the chip but the boot sequence will not run, which can cause numerous problems. The solution is to manually clear this register and then boot the chip again, which is what this patch does. Signed-off-by:
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Charles Keepax authored
This patch adds functions for enabling and disabling the physical reset line. This will be helpful in future refactoring. Signed-off-by:
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Charles Keepax authored
This also handily fixes a leak of the GPIO in arizona_dev_exit. Signed-off-by:
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Lee Jones authored
The System Configuration (syscon) driver is an important one, which effects many ARM-SoC based platforms. I'm adding Arnd as a primary reviewer as he is highly competent in this area and has a keen interest in ARM-SoC. Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Krzysztof Kozlowski authored
Extend the entry for Samsung MFD drivers for PMIC devices (Power Management Integrated Circuit) with bindings documentation, clock (clk-s2mps11.c) and RTC drivers (rtc-s5m.c). These PMIC devices are used on many Exynos-based boards like Arndale Octa (S2MPS11), Gear 2 (S2MPS14). Add Krzysztof Kozlowski as a supporter for reviewing them. I am not the author of these drivers. However I have recently contributed to most of them and I have access to datasheets and hardware. Cc: Sangbeom Kim <sbkim73@samsung.com> CC: Mike Turquette <mturquette@linaro.org> CC: Stephen Boyd <sboyd@codeaurora.org> CC: Alessandro Zummo <a.zummo@towertech.it> CC: Alexandre Belloni <alexandre.belloni@free-electrons.com> CC: Liam Girdwood <lgirdwood@gmail.com> CC: Mark Brown <broonie@kernel.org> Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
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Geert Uytterhoeven authored
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Javier Martinez Canillas authored
The defined struct max77686_opmode_data isn't used neither by the max77686 mfd driver nor the drivers for its sub-devices. Signed-off-by:
Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by:
Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by:
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Tony Lindgren authored
I noticed the PMIC configuration on 37xx-evm won't actually shut down the voltages during off-idle. Turns out 37xx-evm needs the AC charger state transitions disabled like we are doing for SDP and LDP in the legacy booting case. Let's fix this for device tree based booting by setting up the quirk flag based on the compatible flag. And let's also use the existing define for STARTON_CHG. Note that SDP and EVM do not have the PMIC clken wired to gate the the oscillator while LDP has. Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Fabio Estevam authored
Fix typo in 'Multifunction'. Signed-off-by:
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Charles Keepax authored
This soft reset used to be located after the register patch had been applied, but has since moved to before the patch is applied. At the new location there is no requirement to do a register sync as no register writes will have happened yet. Signed-off-by:
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Jacek Anaszewski authored
This patch adds device tree binding documentation for the flash cell of the Maxim max77693 multifunctional device. Signed-off-by:
Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Acked-by:
Kyungmin Park <kyungmin.park@samsung.com> Acked-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Krzysztof Kozlowski authored
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:
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Lee Jones authored
Merge branches 'ib-mfd-watchdog-rtc-4.2', 'ib-mfd-regulator-4.2' and 'ib-mfd-i2c-input-chrome-4.2' into ibs-for-mfd-merged
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Lee Jones authored
Signed-off-by:
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- 15 Jun, 2015 8 commits
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Alexandru M Stan authored
Some ECs need a little time for waking up before they can accept SPI data at a high speed. This is configurable via a DT property "google,cros-ec-spi-pre-delay". This patch makes the cros_ec_spi driver to cause a delay before the beginning of a SPI transaction, to make sure that the EC has already woken up, if the property has been defined in the DTS. Signed-off-by:
Alexandru M Stan <amstan@chromium.org> Reviewed-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
Chris Zhong <zyw@rock-chips.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Alexandru M Stan authored
Some ECs need a little time for waking up before they can accept SPI data at a high speed. Add a "google,cros-ec-spi-pre-delay" property to the DT binding to configure this. If this property isn't set, then no delay will be added. However, if set it will cause a delay equal to the value passed to it to be inserted at the beginning of a transaction. Signed-off-by:
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Gwendal Grignou authored
Chromebooks can have more than one Embedded Controller so the cros_ec device id has to be incremented for each EC registered. Add a new structure to represent multiple EC as different char devices (e.g: /dev/cros_ec, /dev/cros_pd). It connects to cros_ec_device and allows sysfs inferface for cros_pd. Also reduce number of allocated objects, make chromeos sysfs class object a static and add refcounting to prevent object deletion while command is in progress. Signed-off-by:
Gwendal Grignou <gwendal@chromium.org> Reviewed-by:
Dmitry Torokhov <dtor@chromium.org> Signed-off-by:
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Stephen Barber authored
Add proto v3 support to the SPI, I2C, and LPC. Signed-off-by:
Stephen Barber <smbarber@chromium.org> Signed-off-by:
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Stephen Barber authored
Add support in cros_ec.c to handle EC host command protocol v3. For v3+, probe for maximum shared protocol version and max request, response, and passthrough sizes. For now, this will always fall back to v2, since there is no bus-specific code for handling proto v3 packets. Signed-off-by:
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Javier Martinez Canillas authored
The MFD driver should only have the logic to instantiate its child devices and setup any shared resources that will be used by the subdevices drivers. The cros_ec MFD is more complex than expected since it also has helpers to communicate with the EC. So the driver will only get more bigger as other protocols are supported in the future. So move the communication protocol helpers to its own driver as drivers/platform/chrome/cros_ec_proto.c. Suggested-by:
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Stephen Barber authored
Update cros_ec_commands.h to the latest version in the EC firmware sources and add power domain and passthru commands. Also, update lightbar to use new command names. Signed-off-by:
Randall Spangler <rspangler@chromium.org> Signed-off-by:
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Javier Martinez Canillas authored
Commit 1b84f2a4 ("mfd: cros_ec: Use fixed size arrays to transfer data with the EC") modified the struct cros_ec_command fields to not use pointers for the input and output buffers and use fixed length arrays instead. This change was made because the cros_ec ioctl API uses that struct cros_ec_command to allow user-space to send commands to the EC and to get data from the EC. So using pointers made the API not 64-bit safe. Unfortunately this approach was not flexible enough for all the use-cases since there may be a need to send larger commands on newer versions of the EC command protocol. So to avoid to choose a constant length that it may be too big for most commands and thus wasting memory and CPU cycles on copy from and to user-space or having a size that is too small for some big commands, use a zero-length array that is both 64-bit safe and flexible. The same buffer is used for both output and input data so the maximum of these values should be used to allocate it. Suggested-by:
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