[media] tm6000: Disable video interface in radio mode

Video data is useless in radio mode, so the corresponding interface can
be safely disabled. This should reduce the amount of isochronous traffic
noticeably.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c
index 2cd7bc4b293b4fa1a62d67cdb9f349f4d1840b53..f85e5f2cf75d58e6c9bb9ee52aed7338ff67a2b6 100644 (file)
--- a/drivers/staging/tm6000/tm6000-core.c
+++ b/drivers/staging/tm6000/tm6000-core.c
@@ -267,9 +267,14 @@ int tm6000_init_analog_mode(struct tm6000_core *dev)
        struct v4l2_frequency f;
 
        if (dev->dev_type == TM6010) {
+               u8 active = TM6010_REQ07_RCC_ACTIVE_IF_AUDIO_ENABLE;
+
+               if (!dev->radio)
+                       active |= TM6010_REQ07_RCC_ACTIVE_IF_VIDEO_ENABLE;
+
                /* Enable video and audio */
                tm6000_set_reg_mask(dev, TM6010_REQ07_RCC_ACTIVE_IF,
-                                                       0x60, 0x60);
+                                                       active, 0x60);
                /* Disable TS input */
                tm6000_set_reg_mask(dev, TM6010_REQ07_RC0_ACTIVE_VIDEO_SOURCE,
                                                        0x00, 0x40);