gpio-rcar: Add support for IRQ_TYPE_EDGE_BOTH
As hardware support for this feature is not universal for all SoCs a flag,
has_both_edge_trigger, has been added to the platform data of the driver to
allow this feature to be enabled.
The motivation for this is to allow use of the gpio-keys driver on the
lager board which is based on the r8a7790 SoC. The V2 of this patch has been
fully exercised using that driver on that board.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/include/linux/platform_data/gpio-rcar.h b/include/linux/platform_data/gpio-rcar.h
index aba7079..6c0027a 100644
--- a/include/linux/platform_data/gpio-rcar.h
+++ b/include/linux/platform_data/gpio-rcar.h
@@ -21,6 +21,7 @@
unsigned int irq_base;
unsigned int number_of_pins;
const char *pctl_name;
+ unsigned has_both_edge_trigger:1;
};
#endif /* __GPIO_RCAR_H__ */