[media] xc4000: detect also xc4100

Added code to detect the XC4100 chip, which is presumably an analog-only
"value" version of the XC4000. It is not sure, however, if any devices
using this have actually been produced and sold, so the patch may be
unneeded.

Signed-off-by: Istvan Varga <istvan_v@mailbox.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/media/common/tuners/xc4000.c b/drivers/media/common/tuners/xc4000.c
index b04c73bab83..160ca26286c 100644
--- a/drivers/media/common/tuners/xc4000.c
+++ b/drivers/media/common/tuners/xc4000.c
@@ -140,7 +140,8 @@ struct xc4000_priv {
 
 /* Product id */
 #define XC_PRODUCT_ID_FW_NOT_LOADED     0x2000
-#define XC_PRODUCT_ID_FW_LOADED 0x0FA0
+#define XC_PRODUCT_ID_XC4000            0x0FA0
+#define XC_PRODUCT_ID_XC4100            0x1004
 
 /* Registers (Write-only) */
 #define XREG_INIT         0x00
@@ -1071,7 +1072,9 @@ check_device:
 #endif
 
         /* Check that the tuner hardware model remains consistent over time. */
-        if (priv->hwmodel == 0 && hwmodel == 4000) {
+        if (priv->hwmodel == 0 &&
+            (hwmodel == XC_PRODUCT_ID_XC4000 ||
+             hwmodel == XC_PRODUCT_ID_XC4100)) {
                 priv->hwmodel = hwmodel;
                 priv->hwvers  = version & 0xff00;
         } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
@@ -1678,7 +1681,8 @@ struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
         }
 
         switch (id) {
-        case XC_PRODUCT_ID_FW_LOADED:
+        case XC_PRODUCT_ID_XC4000:
+        case XC_PRODUCT_ID_XC4100:
                 printk(KERN_INFO
                         "xc4000: Successfully identified at address 0x%02x\n",
                         cfg->i2c_address);