linux-kernel - [PATCH 2/4] drm/tegra: dsi - Handle continuous clock flag

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Message-Id: <1404303560-32209-3-git-send-email-acourbot@nvidia.com>
Date:	Wed,  2 Jul 2014 21:19:18 +0900
From:	Alexandre Courbot <acourbot@...dia.com>
To:	Thierry Reding <thierry.reding@...il.com>,
	Terje Bergstrom <tbergstrom@...dia.com>,
	Stephen Warren <swarren@...dotorg.org>
Cc:	linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH 2/4] drm/tegra: dsi - Handle continuous clock flag

Handle the MIPI_DSI_MODE_CLOCK_CONTINUOUS flag and only set TX-only
clock behavior when this flag is not present for the DSI device.

Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
 drivers/gpu/drm/tegra/dsi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index bd56f2a..79777f8 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -474,7 +474,8 @@ static int tegra_output_dsi_enable(struct tegra_output *output)
 	tegra_dsi_writel(dsi, value, DSI_HOST_CONTROL);
 
 	value = tegra_dsi_readl(dsi, DSI_CONTROL);
-	value |= DSI_CONTROL_HS_CLK_CTRL;
+	if (!(dsi->flags & MIPI_DSI_MODE_CLOCK_CONTINUOUS))
+		value |= DSI_CONTROL_HS_CLK_CTRL;
 	value &= ~DSI_CONTROL_TX_TRIG(3);
 	value &= ~DSI_CONTROL_DCS_ENABLE;
 	value |= DSI_CONTROL_VIDEO_ENABLE;
-- 
2.0.0

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