CHROMIUM: video: tegra: Run pll_d at 252mhz for HDMI 640x480

drivers/video/tegra/dc/dc.c

 /*
  * drivers/video/tegra/dc/dc.c
  *
  * Copyright (C) 2010 Google, Inc.
  * Author: Erik Gilling <konkers@android.com>
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
  * may be copied, distributed, and modified under those terms.
  *
@@ skipping 689 matching lines @@
 
         if (dc->out->type == TEGRA_DC_OUT_HDMI) {
                 unsigned long rate;
                 struct clk *pll_d_out0_clk =
                         clk_get_sys(NULL, "pll_d_out0");
                 struct clk *pll_d_clk =
                         clk_get_sys(NULL, "pll_d");
 
                 if (dc->mode.pclk > 70000000)
                         rate = 594000000;
+                else if (dc->mode.pclk >= 27000000)
+                        rate = 216000000;
                 else
-                        rate = 216000000;
+                        rate = 252000000;
 
                 if (rate != clk_get_rate(pll_d_clk))
                         clk_set_rate(pll_d_clk, rate);
 
                 if (clk_get_parent(clk) != pll_d_out0_clk)
                         clk_set_parent(clk, pll_d_out0_clk);
         }
 
         pclk = tegra_dc_pclk_round_rate(dc, dc->mode.pclk);
         tegra_dvfs_set_rate(clk, pclk);
@@ skipping 728 matching lines @@
 }
 
 static void __exit tegra_dc_module_exit(void)
 {
         nvhost_driver_unregister(&tegra_dc_driver);
         tegra_dc_ext_module_exit();
 }
 
 module_exit(tegra_dc_module_exit);
 module_init(tegra_dc_module_init);