This patch series updates driver for MAX732X I/O expander to use modern kernel API (like Device Tree). Basically, I was needed this driver to work with kernel 3.8 on our ARM-based board, but it was in obsolete state (supporting only platform data from board-file). First patch makes driver work with data taken from device tree file (old platform data support also kept in place for compatibility reasons). After adding device tree support it came to me that current approach to implement interrupt controller is to use irq-domain framework. Hence the second patch (only affects the code for generating interrupts on level change on expander's GPIO input lines). Once driver became fully functional (using data from device tree), another issue showed up: lockdep validator revealed possible dead-lock in driver code. Third patch fixes this problem. Finally, fourth patch adds binding documentation showing how to describe MAX732X driver in device tree file. Semen Protsenko (4): gpio: max732x: Add device tree support gpio: max732x: Rewrite IRQ code to use irq_domain API gpio: max732x: Fix possible deadlock gpio: max732x: Add DT binding documentation .../devicetree/bindings/gpio/gpio-max732x.txt | 59 +++++++ drivers/gpio/Kconfig | 1 + drivers/gpio/gpio-max732x.c | 174 ++++++++++++++------ 3 files changed, 187 insertions(+), 47 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max732x.txt -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
