sh: pfc: Add GPIO IRQ support
Add GPIO IRQ support to the shared PFC code in drivers/sh/pfc.c
The enums pointed out by a certain GPIO will be matched against
a table for IRQ to enum mappings.
Only the shared PFC code is updated by this patch. SoC specific
changes are also needed to allow platforms to make use of this
feature.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/linux/sh_pfc.h b/include/linux/sh_pfc.h
index 12f3519..bc8c920 100644
--- a/include/linux/sh_pfc.h
+++ b/include/linux/sh_pfc.h
@@ -61,6 +61,14 @@
.reg = r, .reg_width = r_width, \
.enum_ids = (pinmux_enum_t [r_width]) \
+struct pinmux_irq {
+ int irq;
+ pinmux_enum_t *enum_ids;
+};
+
+#define PINMUX_IRQ(irq_nr, ids...) \
+ { .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } } \
+
struct pinmux_range {
pinmux_enum_t begin;
pinmux_enum_t end;
@@ -87,6 +95,9 @@
pinmux_enum_t *gpio_data;
unsigned int gpio_data_size;
+ struct pinmux_irq *gpio_irq;
+ unsigned int gpio_irq_size;
+
struct gpio_chip chip;
};