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From: Lubomir Rintel <lkundrak@v3.sk>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	linux-media@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Lubomir Rintel <lkundrak@v3.sk>, James Cameron <quozl@laptop.org>,
	Pavel Machek <pavel@ucw.cz>, Libin Yang <lbyang@marvell.com>,
	Albert Wang <twang13@marvell.com>
Subject: [PATCH v2 05/11] [media] marvell-ccic: don't generate EOF on parallel bus
Date: Mon, 12 Nov 2018 01:35:14 +0100	[thread overview]
Message-ID: <20181112003520.577592-6-lkundrak@v3.sk> (raw)
In-Reply-To: <20181112003520.577592-1-lkundrak@v3.sk>

The commit 05fed81625bf ("[media] marvell-ccic: add MIPI support for
marvell-ccic driver") that claimed to add CSI2 turned on C0_EOF_VSYNC for
parallel bus without a very good explanation.

That broke camera on OLPC XO-1.75 which precisely uses a sensor on a
parallel bus. Revert that chunk.

Tested on an OLPC XO-1.75.

Fixes: 05fed81625bf755cc67c5864cdfd18b69ea828d1
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
 drivers/media/platform/marvell-ccic/mcam-core.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index d97f39bde9bd..d24e5b7a3bc5 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -792,12 +792,6 @@ static void mcam_ctlr_image(struct mcam_camera *cam)
 	 * Make sure it knows we want to use hsync/vsync.
 	 */
 	mcam_reg_write_mask(cam, REG_CTRL0, C0_SIF_HVSYNC, C0_SIFM_MASK);
-	/*
-	 * This field controls the generation of EOF(DVP only)
-	 */
-	if (cam->bus_type != V4L2_MBUS_CSI2_DPHY)
-		mcam_reg_set_bit(cam, REG_CTRL0,
-				C0_EOF_VSYNC | C0_VEDGE_CTRL);
 }
 
 
-- 
2.19.1


  parent reply	other threads:[~2018-11-12  0:35 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-12  0:35 [PATCH v2 0/11] media: make Marvell camera work on DT-based OLPC XO-1.75 Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 01/11] media: ov7670: hook s_power onto v4l2 core Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 02/11] media: ov7670: control clock along with power Lubomir Rintel
2018-11-14 14:35   ` Hans Verkuil
2018-11-12  0:35 ` [PATCH v2 03/11] media: dt-bindings: marvell,mmp2-ccic: Add Marvell MMP2 camera Lubomir Rintel
2018-11-17 15:39   ` Rob Herring
2018-11-12  0:35 ` [PATCH v2 04/11] [media] marvell-ccic: fix DMA s/g desc number calculation Lubomir Rintel
2018-11-12  0:35 ` Lubomir Rintel [this message]
2018-11-12  0:35 ` [PATCH v2 06/11] Revert "[media] marvell-ccic: reset ccic phy when stop streaming for stability" Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 07/11] [media] marvell-ccic: drop unused stuff Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 08/11] [media] marvell-ccic/mmp: enable clock before accessing registers Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 09/11] [media] marvell-ccic/mmp: add devicetree support Lubomir Rintel
2018-11-12  0:35 ` [PATCH v2 10/11] [media] marvell-ccic: use async notifier to get the sensor Lubomir Rintel
2018-11-12 22:06   ` kbuild test robot
2018-11-12  0:35 ` [PATCH v2 11/11] [media] marvell-ccic: provide a clock for " Lubomir Rintel

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