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path: root/drivers/extcon/extcon-intel-int3496.c (follow)
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* extcon: int3496: Convert to use SPDX identifierAndy Shevchenko2018-08-281-10/+2
| | | | | | | | | Convert driver to use SPDX identifier. While here, fix MODULE_LICENSE() string to be the same as license text states. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Use proper GPIO includeWolfram Sang2018-07-121-1/+1
| | | | | | | | | | Since commit eca0f13c836a ("extcon: int3496: Ignore incorrect IoRestriction for ID pin"), the driver doesn't use GPIOF_* flags anymore. We can thus now drop the deprecated include file for GPIO and use the new one. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Ignore incorrect IoRestriction for ID pinAndy Shevchenko2018-03-211-4/+5
| | | | | | | | | | | | | | | | | | | The commit 70216fd937fe ("extcon: int3496: Set the id pin to direction-input if necessary") introduced a workaround for incorrect IoRestriction mode in ACPI table. Now, when GPIO ACPI library does it in generic way, see the commit 1b2ca32ab0b8 ("gpiolib: acpi: Introduce NO_RESTRICTION quirk") for the details, just set an appropriate quirk flag instead. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: process id-pin first so that we start with the right statusHans de Goede2018-02-131-1/+2
| | | | | | | | | | | | | | | | | | Some other drivers may be waiting for our extcon to show-up, exiting their probe methods with -EPROBE_DEFER until we show up. These drivers will typically get the cable state directly after getting the extcon, this commit changes the int3496 code to wait for the initial processing of the id-pin to complete before exiting probe() with 0, which will cause devices waiting on the defered probe to get reprobed. This fixes a race where the initial work might still be running while other drivers were already calling extcon_get_state(). Fixes: 2f556bdb9f2e ("extcon: int3496: Add Intel INT3496 ACPI ... driver") Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: Split out extcon header file for consumer and provider deviceChanwoo Choi2017-10-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The extcon has two type of extcon devices as following. - 'extcon provider deivce' adds new extcon device and detect the state/properties of external connector. Also, it notifies the state/properties to the extcon consumer device. - 'extcon consumer device' gets the change state/properties from extcon provider device. Prior to that, include/linux/extcon.h contains all exported API for both provider and consumer device driver. To clarify the meaning of header file and to remove the wrong use-case on consumer device, this patch separates into extcon.h and extcon-provider.h. [Description for include/linux/{extcon.h|extcon-provider.h}] - extcon.h includes the extcon API and data structure for extcon consumer device driver. This header file contains the following APIs: : Register/unregister the notifier to catch the change of extcon device : Get the extcon device instance : Get the extcon device name : Get the state of each external connector : Get the property value of each external connector : Get the property capability of each external connector - extcon-provider.h includes the extcon API and data structure for extcon provider device driver. This header file contains the following APIs: : Include 'include/linux/extcon.h' : Allocate the memory for extcon device instance : Register/unregister extcon device : Set the state of each external connector : Set the property value of each external connector : Set the property capability of each external connector Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
* extcon: int3496: Constify acpi_device_idArvind Yadav2017-07-161-1/+1
| | | | | | | | | | | | | | | | | acpi_device_id are not supposed to change at runtime. All functions working with acpi_device_id provided by <acpi/acpi_bus.h> work with const acpi_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 1733 352 0 2085 825 drivers/extcon/extcon-intel-int3496.o File size After adding 'const': text data bss dec hex filename 1797 272 0 2069 815 drivers/extcon/extcon-intel-int3496.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Switch to devm_acpi_dev_add_driver_gpios()Andy Shevchenko2017-06-121-4/+1
| | | | | | | | Switch to use managed variant of acpi_dev_add_driver_gpios() to simplify error path and fix potentially wrong assingment if ->probe() fails. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Set the id pin to direction-input if necessaryHans de Goede2017-03-221-0/+3
| | | | | | | | | | | | | | | | | | | | With the new more strict ACPI gpio code the dsdt's IoRestriction flags are honored on gpiod_get, but in some dsdt's it is wrong, so explicitly call gpiod_direction_input on the id gpio if necessary. This fixes the following errors when the int3496 code is used together with the new more strict ACPI gpio code: [ 2382.484415] gpio gpiochip1: (INT33FF:01): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ [ 2382.484425] gpio gpiochip1: (INT33FF:01): unable to lock HW IRQ 3 for IRQ [ 2382.484429] genirq: Failed to request resources for INT3496:00 (irq 174) on irqchip chv-gpio [ 2382.484518] intel-int3496 INT3496:00: can't request IRQ for USB ID GPIO: -22 [ 2382.500359] intel-int3496: probe of INT3496:00 failed with error -22 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Use gpiod_get instead of gpiod_get_indexHans de Goede2017-03-221-9/+3
| | | | | | | | | Now that we've an acpi mapping table we should be using gpiod_get instead of gpiod_get_index. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Add GPIO ACPI mapping tableAndy Shevchenko2017-03-221-0/+20
| | | | | | | | | | | | In order to make GPIO ACPI library stricter prepare users of gpiod_get_index() to correctly behave when there no mapping is provided by firmware. Here we add explicit mapping between _CRS GpioIo() resources and their names used in the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Rename GPIO pins in accordance with bindingAndy Shevchenko2017-03-221-2/+2
| | | | | | | | Update GPIO pin names in extcon-intel-int3496.c driver to follow the existing extcon binding. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Propagate error code of gpiod_to_irq()Andy Shevchenko2017-03-131-2/+2
| | | | | | | | gpiod_to_irq() doesn't return 0. Thus, we just adjust condition and replace -EINVAL by actual error code it returns. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
* extcon: int3496: Add Intel INT3496 ACPI device extcon driverDavid Cohen2017-01-091-0/+179
Add an extcon driver for USB OTG ports controlled by an Intel INT3496 ACPI device (e.g. Baytrail, Cherrytrail devices). Signed-off-by: David Cohen <david.a.cohen@intel.com> [hdgoede@redhat.com: Port to current kernel, cleanup, submit upstream] [hdgoede@redhat.com: Add Documentation/extcon/intel-int3496.txt] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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