ARM: OMAP2+: dpll44xx.c: Remove unused function

Remove the function omap4_dpllmx_gatectrl_read() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: NRickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/clock.h

@@ -177,7 +177,6 @@ struct clksel {
 u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk);
 void omap3_dpll_allow_idle(struct clk_hw_omap *clk);
 void omap3_dpll_deny_idle(struct clk_hw_omap *clk);
-int omap4_dpllmx_gatectrl_read(struct clk_hw_omap *clk);
 void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk);
 void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk);
 

arch/arm/mach-omap2/dpll44xx.c

@@ -36,26 +36,6 @@
 /* Static rate multiplier for OMAP4 REGM4XEN clocks */
 #define OMAP4430_REGM4XEN_MULT				4
 
-/* Supported only on OMAP4 */
-int omap4_dpllmx_gatectrl_read(struct clk_hw_omap *clk)
-{
-	u32 v;
-	u32 mask;
-
-	if (!clk || !clk->clksel_reg)
-		return -EINVAL;
-
-	mask = clk->flags & CLOCK_CLKOUTX2 ?
-			OMAP4430_DPLL_CLKOUTX2_GATE_CTRL_MASK :
-			OMAP4430_DPLL_CLKOUT_GATE_CTRL_MASK;
-
-	v = omap2_clk_readl(clk, clk->clksel_reg);
-	v &= mask;
-	v >>= __ffs(mask);
-
-	return v;
-}
-
 void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk)
 {
 	u32 v;