CC: Michael Buesch <m@xxxxxxx>
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
drivers/ssb/embedded.c | 12 ++++++++++++
include/linux/ssb/ssb_embedded.h | 4 ++++
2 files changed, 16 insertions(+)
diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c
index 9ef124f..078007c 100644
--- a/drivers/ssb/embedded.c
+++ b/drivers/ssb/embedded.c
@@ -136,6 +136,18 @@ u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value)
}
EXPORT_SYMBOL(ssb_gpio_polarity);
+int ssb_gpio_count(struct ssb_bus *bus)
+{
+ if (ssb_chipco_available(&bus->chipco))
+ return SSB_GPIO_CHIPCO_LINES;
+ else if (ssb_extif_available(&bus->extif))
+ return SSB_GPIO_EXTIF_LINES;
+ else
+ SSB_WARN_ON(1);
+ return 0;
+}
+EXPORT_SYMBOL(ssb_gpio_count);
+
#ifdef CONFIG_SSB_DRIVER_GIGE
static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data)
{
diff --git a/include/linux/ssb/ssb_embedded.h b/include/linux/ssb/ssb_embedded.h
index 8d8dedf..f1618d2 100644
--- a/include/linux/ssb/ssb_embedded.h
+++ b/include/linux/ssb/ssb_embedded.h
@@ -7,6 +7,9 @@
extern int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks);
+#define SSB_GPIO_EXTIF_LINES 5
+#define SSB_GPIO_CHIPCO_LINES 16
+
/* Generic GPIO API */
u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask);
u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value);
@@ -14,5 +17,6 @@ u32 ssb_gpio_outen(struct ssb_bus *bus, u32 mask, u32 value);
u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value);
u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value);
u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value);
+int ssb_gpio_count(struct ssb_bus *bus);
#endif /* LINUX_SSB_EMBEDDED_H_ */
--
1.7.9.5
