clk: ti: add clkdm_lookup to the exported functions

This will be needed to move some additional clockdomain functionality
under clock driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/clock.c

@@ -57,6 +57,7 @@ u16 cpu_mask;
 static struct ti_clk_ll_ops omap_clk_ll_ops = {
 	.clkdm_clk_enable = clkdm_clk_enable,
 	.clkdm_clk_disable = clkdm_clk_disable,
+	.clkdm_lookup = clkdm_lookup,
 	.cm_wait_module_ready = omap_cm_wait_module_ready,
 	.cm_split_idlest_reg = cm_split_idlest_reg,
 };

include/linux/clk/ti.h

@@ -213,6 +213,7 @@ struct clk_omap_reg {
  * @clk_writel: pointer to register write function
  * @clkdm_clk_enable: pointer to clockdomain enable function
  * @clkdm_clk_disable: pointer to clockdomain disable function
+ * @clkdm_lookup: pointer to clockdomain lookup function
  * @cm_wait_module_ready: pointer to CM module wait ready function
  * @cm_split_idlest_reg: pointer to CM module function to split idlest reg
  *
@@ -228,6 +229,7 @@ struct ti_clk_ll_ops {
 	int	(*clkdm_clk_enable)(struct clockdomain *clkdm, struct clk *clk);
 	int	(*clkdm_clk_disable)(struct clockdomain *clkdm,
 				     struct clk *clk);
+	struct clockdomain * (*clkdm_lookup)(const char *name);
 	int	(*cm_wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg,
 					u8 idlest_shift);
 	int	(*cm_split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst,