[media] cx25840: Enable support for non-tuner LR1/LR2 audio inputs

The change effects cx23885 boards only and preserves support for existing
boards. Essentially, if we're using baseband audio into the cx23885 AV
core then we have to patch registers. The cx23885 driver will call
with either CX25840_AUDIO8 to signify tuner audio or AUDIO7 to
signify baseband audio. If/When we become more comfortable with this change
across a series of products then we may decide to relax the cx23885 only
restriction.

[liplianin@netup.ru: fix missing state declaration]

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/cx25840/cx25840-audio.c b/drivers/media/video/cx25840/cx25840-audio.c
index 34b96c7cfd620007b88a7082166413c284ac7a0e..005f11093642711cc854dce2decb70760ee08fdd 100644 (file)
--- a/drivers/media/video/cx25840/cx25840-audio.c
+++ b/drivers/media/video/cx25840/cx25840-audio.c
@@ -480,6 +480,7 @@ void cx25840_audio_set_path(struct i2c_client *client)
 
 static void set_volume(struct i2c_client *client, int volume)
 {
+       struct cx25840_state *state = to_state(i2c_get_clientdata(client));
        int vol;
 
        /* Convert the volume to msp3400 values (0-127) */
@@ -495,7 +496,14 @@ static void set_volume(struct i2c_client *client, int volume)
        }
 
        /* PATH1_VOLUME */
-       cx25840_write(client, 0x8d4, 228 - (vol * 2));
+       if (is_cx2388x(state)) {
+               /* for cx23885 volume doesn't work,
+                * the calculation always results in
+                * e4 regardless.
+                */
+               cx25840_write(client, 0x8d4, volume);
+       } else
+               cx25840_write(client, 0x8d4, 228 - (vol * 2));
 }
 
 static void set_balance(struct i2c_client *client, int balance)

diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c
index 8896999ea6cab708f6a95ec9ce9c688e76d799d1..0316e41b55cd01f585d11bfc65d48a8023b2a4b5 100644 (file)
--- a/drivers/media/video/cx25840/cx25840-core.c
+++ b/drivers/media/video/cx25840/cx25840-core.c
@@ -1074,6 +1074,17 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp
                cx25840_write(client, 0x919, 0x01);
        }
 
+       if (is_cx2388x(state) && (aud_input == CX25840_AUDIO7)) {
+               /* Configure audio from LR1 or LR2 input */
+               cx25840_write4(client, 0x910, 0);
+               cx25840_write4(client, 0x8d0, 0x63073);
+       } else
+       if (is_cx2388x(state) && (aud_input == CX25840_AUDIO8)) {
+               /* Configure audio from tuner/sif input */
+               cx25840_write4(client, 0x910, 0x12b000c9);
+               cx25840_write4(client, 0x8d0, 0x1f063870);
+       }
+
        return 0;
 }