diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2020-06-20 14:37:05 +0200 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-07-09 22:47:27 +0300 |
| commit | 4b2d688fed57bbe8ea9bd90c069d7e2dc43b137c (patch) | |
| tree | e4263249747510598ded12195c6a6fb14c4a5cdf /drivers/platform/x86/Kconfig | |
| parent | ddc605f9f862e86b3ef85534bb43dcbc68dea762 (diff) | |
platform/x86: Add new intel_atomisp2_led driver
Many Bay Trail and Cherry Trail devices come with a camera attached to
Intel's Image Signal Processor. Linux currently does not have a driver for
these, so they do not work as a camera.
Some of these camera's have a status LED which is controlled through a GPIO
in some cases, e.g. on the Asus T100TA and Asus T200TA, there is a firmware
issue where the LED gets turned on at boot.
This commit adds a Linux LED driver for the camera LED on these devices.
This driver will turn the LED off at boot and also allows controlling the
LED (so the user can repurpose it) through the sysfs LED interface.
Which GPIO is attached to the LED is usually not described in the ACPI
tables, so this driver contains per-system info about the GPIO inside the
driver. This means that this driver only works on systems the driver knows
about.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/Kconfig')
| -rw-r--r-- | drivers/platform/x86/Kconfig | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 0581a54cf562..9fdeb3224dd0 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -748,6 +748,27 @@ config THINKPAD_ACPI_HOTKEY_POLL If you are not sure, say Y here. The driver enables polling only if it is strictly necessary to do so. +config INTEL_ATOMISP2_LED + tristate "Intel AtomISP2 camera LED driver" + depends on GPIOLIB && LEDS_GPIO + help + Many Bay Trail and Cherry Trail devices come with a camera attached + to Intel's Image Signal Processor. Linux currently does not have a + driver for these, so they do not work as a camera. Some of these + camera's have a LED which is controlled through a GPIO. + + Some of these devices have a firmware issue where the LED gets turned + on at boot. This driver will turn the LED off at boot and also allows + controlling the LED (repurposing it) through the sysfs LED interface. + + Which GPIO is attached to the LED is usually not described in the + ACPI tables, so this driver contains per-system info about the GPIO + inside the driver, this means that this driver only works on systems + the driver knows about. + + To compile this driver as a module, choose M here: the module + will be called intel_atomisp2_led. + config INTEL_ATOMISP2_PM tristate "Intel AtomISP2 dummy / power-management driver" depends on PCI && IOSF_MBI && PM |