ssb: add GPIO driver
Register a GPIO driver to access the GPIOs provided by the chip.
The GPIOs of the SoC should always start at 0 and the other GPIOs could
start at a random position. There is just one SoC in a system and when
they start at 0 the number is predictable.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4591
Acked-by: Florian Fainelli <florian@openwrt.org>
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index bb674c0..3862a5b 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -6,6 +6,7 @@
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
+#include <linux/gpio.h>
#include <linux/mod_devicetable.h>
#include <linux/dma-mapping.h>
@@ -433,6 +434,9 @@
/* Lock for GPIO register access. */
spinlock_t gpio_lock;
#endif /* EMBEDDED */
+#ifdef CONFIG_SSB_DRIVER_GPIO
+ struct gpio_chip gpio;
+#endif /* DRIVER_GPIO */
/* Internal-only stuff follows. Do not touch. */
struct list_head list;