ARM: tegra30: add PLLD to pll setup

On T30 unlike T20 dsi panels are wider used on devices
and PLLD is used as DISP1 parent more often, so lets
enable it as well for this cases.

Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF700T T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30
Tested-by: Thierry Reding <treding@nvidia.com> # Beaver T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Tom <twarren@nvidia.com>

arch/arm/mach-tegra/tegra30/clock.c

@@ -669,7 +669,48 @@ enum clock_id clk_id_to_pll_id(int clk_id)
 
 void clock_early_init(void)
 {
+	struct clk_rst_ctlr *clkrst =
+		(struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+	struct clk_pll_info *pllinfo;
+	u32 data;
+
 	tegra30_set_up_pllp();
+
+	/*
+	 * PLLD output frequency set to 925Mhz
+	 */
+	switch (clock_get_osc_freq()) {
+	case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
+	case CLOCK_OSC_FREQ_48_0: /* OSC is 48Mhz */
+		clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
+		break;
+
+	case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */
+		clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12);
+		break;
+
+	case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
+	case CLOCK_OSC_FREQ_16_8: /* OSC is 16.8Mhz */
+		clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
+		break;
+
+	case CLOCK_OSC_FREQ_19_2:
+	case CLOCK_OSC_FREQ_38_4:
+	default:
+		/*
+		 * These are not supported. It is too early to print a
+		 * message and the UART likely won't work anyway due to the
+		 * oscillator being wrong.
+		 */
+		break;
+	}
+
+	/* PLLD_MISC: Set CLKENABLE, CPCON 12, LFCON 1, and enable lock */
+	pllinfo = &tegra_pll_info_table[CLOCK_ID_DISPLAY];
+	data = (12 << pllinfo->kcp_shift) | (1 << pllinfo->kvco_shift);
+	data |= (1 << PLLD_CLKENABLE) | (1 << pllinfo->lock_ena);
+	writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);
+	udelay(2);
 }
 
 void arch_timer_init(void)