From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:59980 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754341AbcJNRfC (ORCPT ); Fri, 14 Oct 2016 13:35:02 -0400 From: Philipp Zabel To: linux-media@vger.kernel.org Cc: Steve Longerbeam , Marek Vasut , Hans Verkuil , Gary Bisson , kernel@pengutronix.de, Philipp Zabel Subject: [PATCH v2 11/21] [media] tc358743: put lanes in STOP state before starting streaming Date: Fri, 14 Oct 2016 19:34:31 +0200 Message-Id: <1476466481-24030-12-git-send-email-p.zabel@pengutronix.de> In-Reply-To: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> References: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de> Sender: linux-media-owner@vger.kernel.org List-ID: Without calling tc358743_set_csi after stopping streaming (or calling tc358743_s_dv_timings or tc358743_set_fmt from userspace after stopping the stream), the i.MX6 MIPI CSI2 input fails waiting for lanes to enter STOP state when streaming is started again. Signed-off-by: Philipp Zabel --- Change since v1: - Put lanes in stop state again after stopping streaming --- drivers/media/i2c/tc358743.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c index 1e3a0dd2..7f82932 100644 --- a/drivers/media/i2c/tc358743.c +++ b/drivers/media/i2c/tc358743.c @@ -1466,6 +1466,10 @@ static int tc358743_g_mbus_config(struct v4l2_subdev *sd, static int tc358743_s_stream(struct v4l2_subdev *sd, int enable) { enable_stream(sd, enable); + if (!enable) { + /* Put all lanes in PL-11 state (STOPSTATE) */ + tc358743_set_csi(sd); + } return 0; } -- 2.9.3