intelfb: add preliminary i2c support

Adds code to unregister the I2C buses in the cleanup function.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index d73572355c57..c1113d6e941d 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -182,3 +182,19 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
         }
         dinfo->num_outputs = i;
 }
+
+void intelfb_delete_i2c_busses(struct intelfb_info *dinfo)
+{
+        int i;
+
+        for (i = 0; i < MAX_OUTPUTS; i++) {
+                if (dinfo->output[i].i2c_bus.dinfo) {
+                        i2c_bit_del_bus(&dinfo->output[i].i2c_bus.adapter);
+                        dinfo->output[i].i2c_bus.dinfo = NULL;
+                }
+                if (dinfo->output[i].ddc_bus.dinfo) {
+                        i2c_bit_del_bus(&dinfo->output[i].ddc_bus.adapter);
+                        dinfo->output[i].ddc_bus.dinfo = NULL;
+                }
+        }
+}