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path: root/drivers/video/tegra/dc.c
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Diffstat (limited to 'drivers/video/tegra/dc.c')
-rw-r--r--drivers/video/tegra/dc.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc.c b/drivers/video/tegra/dc.c
index f0e3d2c993f..ced49718834 100644
--- a/drivers/video/tegra/dc.c
+++ b/drivers/video/tegra/dc.c
@@ -238,8 +238,24 @@ static void rgb_enable(struct tegra_lcd_priv *priv)
else
value &= ~LVS_OUTPUT_POLARITY_LOW;
+ /* configure pixel data signal polarity */
+ if (dt->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
+ value &= ~LSC0_OUTPUT_POLARITY_LOW;
+ else
+ value |= LSC0_OUTPUT_POLARITY_LOW;
+
writel(value, &com->pin_output_polarity[1]);
+ /* configure data enable signal polarity */
+ value = readl(&com->pin_output_polarity[3]);
+
+ if (dt->flags & DISPLAY_FLAGS_DE_LOW)
+ value |= LSPI_OUTPUT_POLARITY_LOW;
+ else
+ value &= ~LSPI_OUTPUT_POLARITY_LOW;
+
+ writel(value, &com->pin_output_polarity[3]);
+
for (i = 0; i < PIN_OUTPUT_SEL_COUNT; i++)
writel(rgb_sel_tab[i], &com->pin_output_sel[i]);
}