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 7d2a5db..27c979b 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);