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authorThierry Reding <thierry.reding@avionic-design.de>2012-09-18 10:57:10 +0200
committerLinus Walleij <linus.walleij@linaro.org>2012-09-18 23:27:25 +0200
commit5e969a401a0126806cc2a358800b5b52d6c0a246 (patch)
treebf1abac453b63d37222331cb414e2a783ae9887b /drivers/gpio/Makefile
parentd724f1c9c3c7dee420b8d778ee53207ef3c17120 (diff)
gpio: Add Avionic Design N-bit GPIO expander support
This commit adds a driver for the Avionic Design N-bit GPIO expander. The expander provides a variable number of GPIO pins with interrupt support. Changes in v2: - allow building the driver as a module - assign of_node unconditionally - use linear mapping IRQ domain - properly cleanup IRQ domain - add OF device table and annotate device tables - emulate rising and falling edge triggers - increase #gpio-cells to 2 - drop support for !OF - use IS_ENABLED to conditionalize DEBUG_FS code Changes in v3: - make IRQ support runtime configurable (interrupt-controller property) - drop interrupt-controller and #interrupt-cells from DT binding - add inline to_adnp() function to wrap container_of() macro - consistently use adnp as name for struct adnp variables - remove irq_mask_cur and rename irq_mask to irq_enable - fix a subtle deadlock in adnp_gpio_direction_output() - remove dynamic allocations from debugfs code - rename regs to num_regs to avoid confusion - annotate non-trivial code with comments - don't acquire mutex in adnp_gpio_get() - assume NO_IRQ == 0 Cc: Grant Likely <grant.likely@secretlab.ca> Cc: devicetree-discuss@lists.ozlabs.org Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: linux-kernel@vger.kernel.org Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/Makefile')
-rw-r--r--drivers/gpio/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 153caceeb053..710f2b6f6f04 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o
obj-$(CONFIG_GPIO_74X164) += gpio-74x164.o
obj-$(CONFIG_GPIO_AB8500) += gpio-ab8500.o
+obj-$(CONFIG_GPIO_ADNP) += gpio-adnp.o
obj-$(CONFIG_GPIO_ADP5520) += gpio-adp5520.o
obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o