V4L/DVB (13086): cx23885: Add skeleton v4l2_subdev for the CX23888 integrated IR controller

This change adds a skeletal implementation of a v4l2_subdevice to provide
encapsulation and abstraction of the CX23888's integrated consumer infrared
controller.  This change also instantiates the cx23888_ir subdev for the
HVR-1850 which has IR hardware physically wired up to a CX23888.

The cx23888_ir subdev code is being written with long-term objectives to:
1. port it to the cx25840 module for the CX2584x, CX2583x, CX23885, & CX231xx
   IR controllers
2. possibly port it to the cx18 module for the CX23418 IR controller
3. have the IR subdevice accessed abstractly in the cx23885 module, so the
   driver can ignore the difference between the CX23885 and CX23888.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index bfdf79f1033c..4b5aa08036fa 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -28,6 +28,7 @@
 #include "cx23885.h"
 #include "tuner-xc2028.h"
 #include "netup-init.h"
+#include "cx23888-ir.h"
 
 /* ------------------------------------------------------------------ */
 /* board config info                                                  */
@@ -801,6 +802,7 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
 
 int cx23885_ir_init(struct cx23885_dev *dev)
 {
+        int ret = 0;
         switch (dev->board) {
         case CX23885_BOARD_HAUPPAUGE_HVR1250:
         case CX23885_BOARD_HAUPPAUGE_HVR1500:
@@ -812,15 +814,20 @@ int cx23885_ir_init(struct cx23885_dev *dev)
         case CX23885_BOARD_HAUPPAUGE_HVR1275:
         case CX23885_BOARD_HAUPPAUGE_HVR1255:
         case CX23885_BOARD_HAUPPAUGE_HVR1210:
-        case CX23885_BOARD_HAUPPAUGE_HVR1850:
                 /* FIXME: Implement me */
                 break;
+        case CX23885_BOARD_HAUPPAUGE_HVR1850:
+                ret = cx23888_ir_probe(dev);
+                if (ret)
+                        break;
+                dev->sd_ir = cx23885_find_hw(dev, CX23885_HW_888_IR);
+                break;
         case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP:
                 request_module("ir-kbd-i2c");
                 break;
         }
 
-        return 0;
+        return ret;
 }
 
 void cx23885_card_setup(struct cx23885_dev *dev)