From 873545820a52e8ab6f6d54a748b1759b98f9354a Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@avionic-design.de>
Date: Thu, 4 Aug 2011 04:14:08 -0300
Subject: [PATCH] [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>
---
drivers/staging/tm6000/tm6000-core.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c
index 2cd7bc4b293b4..f85e5f2cf75d5 100644
--- 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);
--
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