ARM: imx6q: add BYPASS support for PLL clocks

The imx6q clock driver currently hard-codes all PLL clocks to source
from OSC24M without BYPASS support.  The patch adds the missing lvds_in
clock which is mutually exclusive with lvds_gate, and implements BYPASS
and BYPASS_CLK_SRC selection for PLL clocks as per Figure 10-3. Primary
Clock Generation in IMX6DQRM, i.e. both BYPASS_CLK_SRC and BYPASS bits
are implemented as mux clocks, and ENABLE bit of PLL clocks is
implemented as a gate clock after BYPASS mux.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

include/dt-bindings/clock/imx6qdl-clock.h

@@ -222,6 +222,31 @@
 #define IMX6QDL_CLK_ESAI_MEM			209
 #define IMX6QDL_CLK_ASRC_IPG			210
 #define IMX6QDL_CLK_ASRC_MEM			211
-#define IMX6QDL_CLK_END				212
+#define IMX6QDL_CLK_LVDS1_IN			212
+#define IMX6QDL_CLK_LVDS2_IN			213
+#define IMX6QDL_CLK_ANACLK1			214
+#define IMX6QDL_CLK_ANACLK2			215
+#define IMX6QDL_PLL1_BYPASS_SRC			216
+#define IMX6QDL_PLL2_BYPASS_SRC			217
+#define IMX6QDL_PLL3_BYPASS_SRC			218
+#define IMX6QDL_PLL4_BYPASS_SRC			219
+#define IMX6QDL_PLL5_BYPASS_SRC			220
+#define IMX6QDL_PLL6_BYPASS_SRC			221
+#define IMX6QDL_PLL7_BYPASS_SRC			222
+#define IMX6QDL_CLK_PLL1			223
+#define IMX6QDL_CLK_PLL2			224
+#define IMX6QDL_CLK_PLL3			225
+#define IMX6QDL_CLK_PLL4			226
+#define IMX6QDL_CLK_PLL5			227
+#define IMX6QDL_CLK_PLL6			228
+#define IMX6QDL_CLK_PLL7			229
+#define IMX6QDL_PLL1_BYPASS			230
+#define IMX6QDL_PLL2_BYPASS			231
+#define IMX6QDL_PLL3_BYPASS			232
+#define IMX6QDL_PLL4_BYPASS			233
+#define IMX6QDL_PLL5_BYPASS			234
+#define IMX6QDL_PLL6_BYPASS			235
+#define IMX6QDL_PLL7_BYPASS			236
+#define IMX6QDL_CLK_END				237
 
 #endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */