memory: omap-gpmc: deadcode a pair of functions

gpmc_get_client_irq() last use was removed by
commit ac28e47ccc3f ("ARM: OMAP2+: Remove legacy gpmc-nand.c")

gpmc_ticks_to_ns() last use was removed by
commit 2514830b8b8c ("ARM: OMAP2+: Remove gpmc-onenand")

Remove them.

gpmc_clk_ticks_to_ns() is now only used in some DEBUG
code; move inside the ifdef to avoid unused warnings.

Signed-off-by: Dr. David Alan Gilbert <[e-mail]>
Reviewed-by: Roger Quadros <[e-mail]>
Acked-by: Kevin Hilman <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

drivers/memory/omap-gpmc.c

···
 	return (time_ps + tick_ps - 1) / tick_ps;
 }
 
-static unsigned int gpmc_clk_ticks_to_ns(unsigned int ticks, int cs,
-					 enum gpmc_clk_domain cd)
-{
-	return ticks * gpmc_get_clk_period(cs, cd) / 1000;
-}
-
-unsigned int gpmc_ticks_to_ns(unsigned int ticks)
-{
-	return gpmc_clk_ticks_to_ns(ticks, /* any CS */ 0, GPMC_CD_FCLK);
-}
-
 static unsigned int gpmc_ticks_to_ps(unsigned int ticks)
 {
 	return ticks * gpmc_get_fclk_period();
···
 }
 
 #ifdef CONFIG_OMAP_GPMC_DEBUG
+
+static unsigned int gpmc_clk_ticks_to_ns(unsigned int ticks, int cs,
+					 enum gpmc_clk_domain cd)
+{
+	return ticks * gpmc_get_clk_period(cs, cd) / 1000;
+}
+
 /**
  * get_gpmc_timing_reg - read a timing parameter and print DTS settings for it.
  * @cs:      Chip Select Region
···
 	return gpmc_cs_set_timings(cs, &gpmc_t, &gpmc_s);
 }
 EXPORT_SYMBOL_GPL(gpmc_omap_onenand_set_timings);
-
-int gpmc_get_client_irq(unsigned int irq_config)
-{
-	if (!gpmc_irq_domain) {
-		pr_warn("%s called before GPMC IRQ domain available\n",
-			__func__);
-		return 0;
-	}
-
-	/* we restrict this to NAND IRQs only */
-	if (irq_config >= GPMC_NR_NAND_IRQS)
-		return 0;
-
-	return irq_create_mapping(gpmc_irq_domain, irq_config);
-}
 
 static int gpmc_irq_endis(unsigned long hwirq, bool endis)
 {

include/linux/omap-gpmc.h

···
 
 struct device_node;
 
-extern int gpmc_get_client_irq(unsigned irq_config);
-
-extern unsigned int gpmc_ticks_to_ns(unsigned int ticks);
-
 extern void gpmc_cs_write_reg(int cs, int idx, u32 val);
 extern int gpmc_calc_divider(unsigned int sync_clk);
 extern int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t,