Two patches from David Brownell follow. The first one implements a low-level driver/library for the PWM controller integrated on some newer AVR32- and ARM-based chips from Atmel. The second one uses this library to implement a LED driver with variable brightness.
There's currently no user of this LED driver, but it can be tested on the ATSTK1000 by following the instructions here: http://avr32linux.org/twiki/bin/view/Main/AtmelPwmDriver Also, PWM functionality in the kernel has been requested by several AVR32 users with custom boards (which we hopefully will see support for in mainline later), and some AT91-based boards may be able to use the PWM LED driver by default given some suitable platform- and board code (David mentioned AT91SAM9263EK.) I'd appreciate some feedback from AT91 people about this. David Brownell (2): Basic PWM driver for AVR32 and AT91 PWM LED driver arch/avr32/mach-at32ap/at32ap700x.c | 54 +++++ drivers/leds/Kconfig | 7 + drivers/leds/Makefile | 1 + drivers/leds/leds-atmel-pwm.c | 157 +++++++++++++ drivers/misc/Kconfig | 9 + drivers/misc/Makefile | 1 + drivers/misc/atmel_pwm.c | 409 +++++++++++++++++++++++++++++++++ include/asm-avr32/arch-at32ap/board.h | 3 + include/linux/atmel_pwm.h | 70 ++++++ 9 files changed, 711 insertions(+), 0 deletions(-) create mode 100644 drivers/leds/leds-atmel-pwm.c create mode 100644 drivers/misc/atmel_pwm.c create mode 100644 include/linux/atmel_pwm.h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
