mfd: ti_am335x_tscadc: Make am335x_tsc_se_update() local

Since the "recent" changes, am335x_tsc_se_update() has no longer any
users outside of this file so make it local.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/ti_am335x_tscadc.c

@@ -48,11 +48,10 @@ static const struct regmap_config tscadc_regmap_config = {
 	.val_bits = 32,
 };
 
-void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc)
+static void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc)
 {
 	tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache);
 }
-EXPORT_SYMBOL_GPL(am335x_tsc_se_update);
 
 void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val)
 {

include/linux/mfd/ti_am335x_tscadc.h

@@ -176,7 +176,6 @@ static inline struct ti_tscadc_dev *ti_tscadc_dev_get(struct platform_device *p)
 	return *tscadc_dev;
 }
 
-void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc);
 void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val);
 void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val);