T30+ SOC have second PLLD - PLLD2 which can be actively used by DC and act as main DISP1/2 clock parent.
Tested-by: Agneli poczt@protonmail.ch # Toshiba AC100 T20 Tested-by: Robert Eckelmann longnoserob@gmail.com # ASUS TF101 Tested-by: Andreas Westman Dorcsak hedmoo@yahoo.com # ASUS Grouper E1565 Tested-by: Ion Agorria ion@agorria.com # HTC One X Tested-by: Svyatoslav Ryhel clamor95@gmail.com # Nvidia Tegratab T114 Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- drivers/video/tegra20/tegra-dc.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/video/tegra20/tegra-dc.c b/drivers/video/tegra20/tegra-dc.c index 0e94e665ef..56a23b3c97 100644 --- a/drivers/video/tegra20/tegra-dc.c +++ b/drivers/video/tegra20/tegra-dc.c @@ -304,6 +304,12 @@ static int tegra_display_probe(struct tegra_lcd_priv *priv, if (priv->dc_clk[1] == CLOCK_ID_DISPLAY) rate /= 2;
+#ifndef CONFIG_TEGRA20 + /* PLLD2 obeys same rules as PLLD but it is present only on T30+ */ + if (priv->dc_clk[1] == CLOCK_ID_DISPLAY2) + rate /= 2; +#endif + /* * HOST1X is init by default at 150MHz with PLLC as parent */