This set of patches adds: * Block GPIO API to gpiolib * Sysfs support for GPIO API, to provide userland access * Devicetree support to instantiate GPIO blocks via DT * Example implementations in several gpio drivers since they need special accessor functions for block wise GPIO access * Fix for race condition in gpiolib on device creation
Signed-off-by: Roland Stigge <sti...@antcom.de> -- Changes since v5: * Documented sysfs: elaborated on "exported" and "values" attributes * Documented sysfs: gpiochip is a separate class now * Aggregated driver support patches for block gpio into one single patch * Added gpio block driver support for twl6040 and pch Changes since v4: * Documented word width * Bugfix: export/unexport on register/unregister * Using default dev_attrs for gpio_block_class * Fix gpiolib: race condition on device creation * Added driver support for ucb14500, vt8500, xilinx Changes since v3: * Added driver support for pca953x, em, pl061, max732x, pcf857x * Coding style improvements * Fixed krealloc memory leak in error case * sysfs: values in hex * Register blocks in a list * Narrowing lock scope * Use S_IWUSR and S_IRUGO instead of direct octal values * Use for_each_set_bit() * Change from unsigned to unsigned long for masks and values Changes since v2: * Added sysfs support * Added devicetree support * Added support for lpc32xx, generic * Added functions for GPIO block registration * Added more error checking * Bit remapping bugfix Changes since v1: * API change to 32/64 bit word, bit masks Thanks to Ryan Mallon, Linus Walleij, Stijn Devriendt, Jean-Christophe Plagniol-Villard, Mark Brown and Greg Kroah-Hartman for reviewing! Roland Stigge (5): gpio: Add a block GPIO API to gpiolib gpio: Add sysfs support to block GPIO API gpiolib: Fix default attributes for class gpio: Add device tree support to block GPIO API gpio: Add block gpio to several gpio drivers Documentation/ABI/testing/sysfs-gpio | 29 + Documentation/devicetree/bindings/gpio/gpio-block.txt | 36 + Documentation/gpio.txt | 47 + drivers/gpio/Makefile | 1 drivers/gpio/gpio-em.c | 23 drivers/gpio/gpio-generic.c | 56 + drivers/gpio/gpio-lpc32xx.c | 82 ++ drivers/gpio/gpio-max730x.c | 61 ++ drivers/gpio/gpio-max732x.c | 59 ++ drivers/gpio/gpio-pca953x.c | 64 ++ drivers/gpio/gpio-pcf857x.c | 24 drivers/gpio/gpio-pch.c | 27 drivers/gpio/gpio-pl061.c | 17 drivers/gpio/gpio-twl6040.c | 32 + drivers/gpio/gpio-ucb1400.c | 23 drivers/gpio/gpio-vt8500.c | 24 drivers/gpio/gpio-xilinx.c | 44 + drivers/gpio/gpioblock-of.c | 84 ++ drivers/gpio/gpiolib.c | 510 ++++++++++++++++-- include/asm-generic/gpio.h | 26 include/linux/gpio.h | 87 +++ 21 files changed, 1311 insertions(+), 45 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
