drm/tegra: dsi - Handle non-continuous clock flag

Handle the MIPI_DSI_CLOCK_NONCONTINUOUS flag and only set TX-only
clock behavior when this flag is present to allow panels requiring
continuous clock mode to operate with this driver.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index bd56f2a..eadfeaf 100644 (file)
--- 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_CLOCK_NON_CONTINUOUS)
+               value |= DSI_CONTROL_HS_CLK_CTRL;
        value &= ~DSI_CONTROL_TX_TRIG(3);
        value &= ~DSI_CONTROL_DCS_ENABLE;
        value |= DSI_CONTROL_VIDEO_ENABLE;