drm/tegra: sor - Remove obsolete comment

According to the DP specification the disparity of the first symbol
should always be negative. It is therefore safe to assume that panels
will conform to that and therefore parameterizing this field should
never be necessary.

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

diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 7d2a5db72365496d1dee2e3e165321a4f91fca3d..27c979b5011112182226f7a1cd4d0e1e6b54c9ed 100644 (file)
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -713,7 +713,7 @@ static int tegra_output_sor_enable(struct tegra_output *output)
                value &= ~SOR_DP_CONFIG_ACTIVE_SYM_POLARITY;
 
        value |= SOR_DP_CONFIG_ACTIVE_SYM_ENABLE;
-       value |= SOR_DP_CONFIG_DISPARITY_NEGATIVE; /* XXX: don't hardcode? */
+       value |= SOR_DP_CONFIG_DISPARITY_NEGATIVE;
        tegra_sor_writel(sor, value, SOR_DP_CONFIG_0);
 
        value = tegra_sor_readl(sor, SOR_DP_AUDIO_HBLANK_SYMBOLS);