From patchwork Thu Aug 4 07:14:08 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 7076 Return-path: Envelope-to: mchehab@infradead.org Delivery-date: Thu, 04 Aug 2011 07:15:01 +0000 Received: from casper.infradead.org [85.118.1.10] by localhost.localdomain with IMAP (fetchmail-6.3.17) for (single-drop); Thu, 04 Aug 2011 08:52:34 -0300 (BRT) Received: from vger.kernel.org ([209.132.180.67]) by casper.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Qos8y-0002rR-OT; Thu, 04 Aug 2011 07:15:01 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751797Ab1HDHOk (ORCPT + 1 other); Thu, 4 Aug 2011 03:14:40 -0400 Received: from moutng.kundenserver.de ([212.227.17.9]:55358 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751807Ab1HDHO0 (ORCPT ); Thu, 4 Aug 2011 03:14:26 -0400 Received: from localhost (p548E06E4.dip0.t-ipconnect.de [84.142.6.228]) by mrelayeu.kundenserver.de (node=mrbap4) with ESMTP (Nemesis) id 0LxwHc-1RTgWL0ufc-015Fpo; Thu, 04 Aug 2011 09:14:25 +0200 From: Thierry Reding To: linux-media@vger.kernel.org Subject: [PATCH 10/21] [staging] tm6000: Disable video interface in radio mode. Date: Thu, 4 Aug 2011 09:14:08 +0200 Message-Id: <1312442059-23935-11-git-send-email-thierry.reding@avionic-design.de> X-Mailer: git-send-email 1.7.6 In-Reply-To: <1312442059-23935-1-git-send-email-thierry.reding@avionic-design.de> References: <1312442059-23935-1-git-send-email-thierry.reding@avionic-design.de> X-Provags-ID: V02:K0:9jmPltOHEJHzP7mjg8zhxxQS6RM290Ju687O/t1VVqu jPvL+SXi9m/Wt8APkPgak2yM+V7TXfrrJx58oLebQ34PrZ6N5H rtZ0TXqk6VUNpbtX1pMmR+3rpI1QDmrhTi/PXoK/HxcCn0pnrm j0+WqHn55OxWXV18afu3jxjh/qIVwdJ9vU7JJF6KStpNKv3LI+ mRpe0x1X3s4sHVO4kFBxyhR5o5VF32upFZ5XCCzcr0SWt/zO5r 5ZhYkugBnVMQ0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Video data is useless in radio mode, so the corresponding interface can be safely disabled. This should reduce the amount of isochronous traffic noticeably. --- drivers/staging/tm6000/tm6000-core.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index 2117f8e..1f8abe3 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -264,9 +264,14 @@ 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);