rpi_1043_30ee17664d47b0befc0e3221dd445798dd97425c

commit 30ee176
Author: Aron Szabo <aron@aron.ws>
Date:   Sat Jun 16 12:15:55 2012 +0200

    lirc: added support for RaspberryPi GPIO
    
    lirc_rpi: Use read_current_timer to determine transmitter delay. Thanks to jjmz and others
    See: raspberrypi/linux#525
    
    lirc: Remove restriction on gpio pins that can be used with lirc
    
    Compute Module, for example could use different pins
    
    lirc_rpi: Add parameter to specify input pin pull
    
    Depending on the connected IR circuitry it might be desirable to change the
    gpios internal pull from it pull-down default behaviour. Add a module
    parameter to allow the user to set it explicitly.
    
    Signed-off-by: Julian Scheel <julian@jusst.de>
    
    lirc-rpi: Use the higher-level irq control functions
    
    This module used to access the irq_chip methods of the
    gpio controller directly, rather than going through the
    standard enable_irq/irq_set_irq_type functions. This
    caused problems on pinctrl-bcm2835 which only implements
    the irq_enable/disable methods and not irq_unmask/mask.
    
    lirc-rpi: Correct the interrupt usage
    
    1) Correct the use of enable_irq (i.e. don't call it so often)
    2) Correct the shutdown sequence.
    3) Avoid a bcm2708_gpio driver quirk by setting the irq flags earlier
    
    lirc-rpi: use getnstimeofday instead of read_current_timer
    
    read_current_timer isn't guaranteed to return values in
    microseconds, and indeed it doesn't on a Pi2.
    
    Issue: linux#827
    
    lirc-rpi: Add device tree support, and a suitable overlay
    
    The overlay supports DT parameters that match the old module
    parameters, except that gpio_in_pull should be set using the
    strings "up", "down" or "off".
    
    lirc-rpi: Also support pinctrl-bcm2835 in non-DT mode
    
    fix auto-sense in lirc_rpi driver
    
    On a Raspberry Pi 2, the lirc_rpi driver might receive spurious
    interrupts and change it's low-active / high-active setting.
    When this happens, the IR remote control stops working.
    
    This patch disables this auto-detection if the 'sense' parameter
    was set in the device tree, making the driver robust to such
    spurious interrupts.


Gbp-Pq: Topic rpi
Gbp-Pq: Name rpi_1043_30ee17664d47b0befc0e3221dd445798dd97425c.patch

drivers/staging/media/lirc/Kconfig

@@ -32,6 +32,12 @@ config LIRC_PARALLEL
 	help
 	  Driver for Homebrew Parallel Port Receivers
 
+config LIRC_RPI
+	tristate "Homebrew GPIO Port Receiver/Transmitter for the RaspberryPi"
+	depends on LIRC
+	help
+	  Driver for Homebrew GPIO Port Receiver/Transmitter for the RaspberryPi
+
 config LIRC_SASEM
 	tristate "Sasem USB IR Remote"
 	depends on LIRC && USB

drivers/staging/media/lirc/Makefile

@@ -6,6 +6,7 @@
 obj-$(CONFIG_LIRC_BT829)	+= lirc_bt829.o
 obj-$(CONFIG_LIRC_IMON)		+= lirc_imon.o
 obj-$(CONFIG_LIRC_PARALLEL)	+= lirc_parallel.o
+obj-$(CONFIG_LIRC_RPI)		+= lirc_rpi.o
 obj-$(CONFIG_LIRC_SASEM)	+= lirc_sasem.o
 obj-$(CONFIG_LIRC_SERIAL)	+= lirc_serial.o
 obj-$(CONFIG_LIRC_SIR)		+= lirc_sir.o