drm/tegra: sor: Add Tegra186 support
The SOR found on Tegra186 is very similar to the one found on Tegra210
and earlier. However, due to some changes in the display architecture,
some programming sequences have changed and some register have moved
around.
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 6790e2d..906752d 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -54,6 +54,19 @@
return value;
}
+bool tegra_dc_has_output(struct tegra_dc *dc, struct device *dev)
+{
+ struct device_node *np = dc->dev->of_node;
+ struct of_phandle_iterator it;
+ int err;
+
+ of_for_each_phandle(&it, err, np, "nvidia,outputs", NULL, 0)
+ if (it.node == dev->of_node)
+ return true;
+
+ return false;
+}
+
/*
* Double-buffered registers have two copies: ASSEMBLY and ACTIVE. When the
* *_ACT_REQ bits are set the ASSEMBLY copy is latched into the ACTIVE copy.