PCMCIA: soc_common: add GPIO support for card status signals
Add GPIO support for reading the card status (card detect, ready,
battery voltage detect) signals into soc_common code. As we want
interrupts from these GPIOs, this takes over the old irq handling
infrastructure for card status signals, which will now be managed
entirely by the soc_common code.
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h
index 3ff7ead..ebdfa6c 100644
--- a/drivers/pcmcia/soc_common.h
+++ b/drivers/pcmcia/soc_common.h
@@ -50,6 +50,16 @@
struct resource res_attr;
void __iomem *virt_io;
+ struct {
+ int gpio;
+ unsigned int irq;
+ const char *name;
+ } stat[4];
+#define SOC_STAT_CD 0 /* Card detect */
+#define SOC_STAT_BVD1 1 /* BATDEAD / IOSTSCHG */
+#define SOC_STAT_BVD2 2 /* BATWARN / IOSPKR */
+#define SOC_STAT_RDY 3 /* Ready / Interrupt */
+
unsigned int irq_state;
struct timer_list poll_timer;
