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Diffstat (limited to 'drivers/gpu/drm/tegra/dc.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 6790e2d869c4..906752d86622 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -54,6 +54,19 @@ static u32 tegra_dc_readl_active(struct tegra_dc *dc, unsigned long offset) 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. |