- 03 Jun, 2014 40 commits
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Linus Walleij authored
This adds a driver for the Atmel Microcontroller found on the iPAQ h3xxx series. This device handles some keys, the touchscreen, and the battery monitoring. This is a port of a driver from handhelds.org 2.6.21 kernel, written by Alessandro Gardich based on Andrew Christians original HAL-driver. It has been heavily cleaned and converted to mfd-core by Dmitry Artamonow and rewritten again for the v3.x series kernels by Linus Walleij, bringing back some of the functionality lost from Andrew's original driver. Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Alessandro Gardich <gremlin@gremlin.it> Signed-off-by:
Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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Tushar Behera authored
commit df73de9b ("mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled") introduced fallbacks for APIs, but missed out on adding the header file. This would work only if linux/err.h is also included in the source code from where this file is included. It would be better to include linux/err.h in file to remove possible build errors. Without this patch, we get following and similar build errors if this header file is included in some source file and CONFIG_MFD_SYSCON is not enabled. include/linux/mfd/syscon.h: In function ‘syscon_node_to_regmap’: include/linux/mfd/syscon.h:30:2: error: implicit declaration of function ‘ERR_PTR’ [-Werror=implicit-function-declaration] return ERR_PTR(-ENOSYS); ^ include/linux/mfd/syscon.h:30:18: error: ‘ENOSYS’ undeclared (first use in this function) return ERR_PTR(-ENOSYS); ^ Signed-off-by:
Tushar Behera <tushar.behera@linaro.org> Signed-off-by:
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Boris BREZILLON authored
The PRCM (Power/Reset/Clock Management) block exposes several subdevices in different subsystems (clk, reset ...) Add basic support for the PRCM unit with clk (AR100, AHB0, and APB0 clks) and reset controller subdevices. Other subdevices might be added later (if needed). Signed-off-by:
Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
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Boris BREZILLON authored
Document DT bindings of the PRCM (Power/Reset/Clock Management) unit. Signed-off-by:
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Krzysztof Kozlowski authored
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by:
Roger Tseng <rogerable@realtek.com> Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by of_platform_populate() call. Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by of_match_table field. Signed-off-by:
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Krzysztof Kozlowski authored
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by:
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Krzysztof Kozlowski authored
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by:
Milo Kim <milo.kim@ti.com> Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id should be const as expected by both of_match_table field and of_match_device() call. Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by both of_match_table field and of_match_node() call. Signed-off-by:
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Krzysztof Kozlowski authored
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by both of_match_table field and of_match_node() call. Signed-off-by:
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Krzysztof Kozlowski authored
mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by of_match_table field. Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by of_match_table field. Signed-off-by:
Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by:
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Krzysztof Kozlowski authored
The kempld_devs (array of mfd_cells) can be safely made const. Signed-off-by:
Kevin Strasser <kevin.strasser@linux.intel.com> Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by both of_match_table field and of_match_node() call. Signed-off-by:
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Krzysztof Kozlowski authored
Array of struct of_device_id may be be const as expected by of_match_table field. Signed-off-by:
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Alexander Shiyan authored
This patch removes platform data usage for codec and touchscreen when driver is used with devicetree. This fixes possible "null pointer dereference" error if DTS uses "fsl,mc13xxx-uses-codec" or "fsl,mc13xxx-uses-touch" options. Signed-off-by:
Alexander Shiyan <shc_work@mail.ru> Signed-off-by:
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Peter Ujfalusi authored
When the MCLK is 19.2 or 38.4 MHz the HPPLL need to be enabled and can be put in bypass mode. This will fix HPPLL use on boards with 19.2MHz mclk. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by:
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Jingoo Han authored
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Jingoo Han authored
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by:
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Jingoo Han authored
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by:
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Jingoo Han authored
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by:
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Carlo Caione authored
This patch introduces the preliminary support for PMICs X-Powers AXP202 and AXP209. The AXP209 and AXP202 are the PMUs (Power Management Unit) used by A10, A13 and A20 SoCs and developed by X-Powers, a sister company of Allwinner. The core enables support for two subsystems: - PEK (Power Enable Key) - Regulators Signed-off-by:
Carlo Caione <carlo@caione.org> Signed-off-by:
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Pankaj Dubey authored
If we pass syscon device node itself as first parameter to this function there is no need to parse and find syscon device node. So by allowing "property" parameter as NULL allow syscon_regmap_lookup_by_phandle to consider passed argument "np" itself as a syscon device node "syscon_np". This will help us in avoiding addition of "syscon" property in a device node which points back to same device node in device tree. Signed-off-by:
Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by:
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Stephen Boyd authored
The pm8xxx read/write wrappers are no longer necessary now that all the sub-device drivers are using the regmap API. Remove it. Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
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Krzysztof Kozlowski authored
During suspend the IRQ should be disabled even if this is not a wakeup source. This is a proper way of fixing the IRQ handling issue during resume (IRQ handler fails because I2C bus did not resume yet). When device is suspended and max14577 interrupt is signaled the irq chip will try to handle it regardless of wakeup source. Device could be woken up by different IRQ but still the IRQ handler will try to read the registers over I2C bus and fail because I2C bus won't be ready yet: max14577 2-0025: Failed to read IRQ status: -5 Signed-off-by:
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Krzysztof Kozlowski authored
During suspend the IRQ should be disabled even if this is not a wakeup source. This is a proper way of fixing the IRQ handling issue during resume (IRQ handler fails because I2C bus did not resume yet). When device is suspended and sec-core interrupt is signaled the irq chip will try to handle it regardless of wakeup source. Device could be woken up by different IRQ but still the IRQ handler will try to read the registers over I2C bus and fail because I2C bus won't be ready yet. Signed-off-by:
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Krzysztof Kozlowski authored
The device type was stored in sec_pmic_dev state container twice: - unsigned long type (initialized from of_device_id or i2c_device_id) - int device_type (initialized as above or from board files when there is no DTS) The 'type' field was never used outside of probe so it can be safely removed. Change also the device_type in sec_pmic_dev and sec_platform_data to unsigned long to avoid any casts. Signed-off-by:
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Peter Ujfalusi authored
Make sure that we patch the ACCCTL register as the first thing when the driver loads, thus configuring I2C fast mode and i2c access for dual access registers. Signed-off-by:
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Peter Ujfalusi authored
In certain boards the source for the clk32k clock can be gated. In these boards the clk32k clock can be provided to the driver and it is going to be enabled/disabled when it is needed. If the clk32k clock is not provided the driver will assume that it is always running. Signed-off-by:
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Peter Ujfalusi authored
All boards using twl6040 configures the i2c bus to 400KHz. While twl6040's defaults to normal mode (100KHz). So far twl6040 has no problem with i2c communication in this configuration it is safer to select fast i2c mode. Signed-off-by:
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Peter Ujfalusi authored
If for some reason the boot loader enabled the audpwron GPIO we will have pending IRQs to be handled. This seams to break twl6040 for some reason leading to non working i2c communication (i2c timeouts). Clearing the INTID register after we requested the audpwron GPIO (and set it to low) will ensure that the chip will operate normally in this case as well. Signed-off-by:
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Charles Keepax authored
The supply aliases for the MFD devices were being added using devres but the device hasn't been added at this point and as such we can't use devres. The MFD already has a function that removes devices this patch uses the non-devres versions of the supply alias functions and adds an unregister in mfd_remove_devices_fn. Reported-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Axel Lin authored
The valid gpio is GPIO0 ~ GPIO58, so ngpio should be 59. This patch also renames RDC321X_MAX_GPIO to RDC321X_NUM_GPIO because it actually means the number of available GPIOs. Signed-off-by:
Axel Lin <axel.lin@ingics.com> Acked-by:
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Krzysztof Kozlowski authored
Update the documentation for sec_pmic state container structure to reflect current code. Signed-off-by:
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Krzysztof Kozlowski authored
The rtc-s5m driver does not support all of S2M and S5M chipsets supported by main MFD sec-core driver. For such chipsets unsupported by rtc-s5m, the MFD sec-core driver initialized regmap with default config. This config in such cases wouldn't work at all. The main MFD sec-core driver shouldn't initialize regmap for child drivers which is not used by them and even not valid. Move the allocation of RTC I2C dummy device and initialization of RTC regmap from main MFD sec-core driver to the rtc-s5m driver. The rtc-s5m driver will use proper regmap config for supported devices. Signed-off-by:
Alessandro Zummo <a.zummo@towertech.it> Signed-off-by:
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Bill Richardson authored
This module has always been GPL licensed. It was just missing the explicit declaration to avoid tainting the kernel. Signed-off-by:
Bill Richardson <wfrichar@chromium.org> Signed-off-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
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