mfd: New mc13783 function exposing flags

This is needed for the mc13783-adc driver to decide if a touch screen is
connected.  If so some channels are not available as generic hwmon inputs.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c
index fecf38a4f025..b0778dcca917 100644
--- a/drivers/mfd/mc13783-core.c
+++ b/drivers/mfd/mc13783-core.c
@@ -226,6 +226,12 @@ int mc13783_reg_rmw(struct mc13783 *mc13783, unsigned int offset,
 }
 EXPORT_SYMBOL(mc13783_reg_rmw);
 
+int mc13783_get_flags(struct mc13783 *mc13783)
+{
+        return mc13783->flags;
+}
+EXPORT_SYMBOL(mc13783_get_flags);
+
 int mc13783_irq_mask(struct mc13783 *mc13783, int irq)
 {
         int ret;
diff --git a/include/linux/mfd/mc13783.h b/include/linux/mfd/mc13783.h
index 4a894f688549..0fa44fb8dd26 100644
--- a/include/linux/mfd/mc13783.h
+++ b/include/linux/mfd/mc13783.h
@@ -21,6 +21,8 @@ int mc13783_reg_write(struct mc13783 *mc13783, unsigned int offset, u32 val);
 int mc13783_reg_rmw(struct mc13783 *mc13783, unsigned int offset,
                 u32 mask, u32 val);
 
+int mc13783_get_flags(struct mc13783 *mc13783);
+
 int mc13783_irq_request(struct mc13783 *mc13783, int irq,
                 irq_handler_t handler, const char *name, void *dev);
 int mc13783_irq_request_nounmask(struct mc13783 *mc13783, int irq,