mmc: matsushita-common: Export register access functions

Export the matsu_sd_{read,write}l() common register access
functions, so that they can be used by other drivers sharing
the common code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

drivers/mmc/matsushita-common.c

@@ -44,7 +44,7 @@ static void matsu_sd_writew(struct matsu_sd_priv *priv,
 	writew(val, priv->regbase + (reg >> 1));
 }
 
-static u32 matsu_sd_readl(struct matsu_sd_priv *priv, unsigned int reg)
+u32 matsu_sd_readl(struct matsu_sd_priv *priv, unsigned int reg)
 {
 	u32 val;
 
@@ -61,7 +61,7 @@ static u32 matsu_sd_readl(struct matsu_sd_priv *priv, unsigned int reg)
 		return readl(priv->regbase + reg);
 }
 
-static void matsu_sd_writel(struct matsu_sd_priv *priv,
+void matsu_sd_writel(struct matsu_sd_priv *priv,
 			       u32 val, unsigned int reg)
 {
 	if (priv->caps & MATSU_SD_CAP_64BIT)

drivers/mmc/matsushita-common.h

@@ -143,4 +143,8 @@ int matsu_sd_get_cd(struct udevice *dev);
 int matsu_sd_bind(struct udevice *dev);
 int matsu_sd_probe(struct udevice *dev, u32 quirks);
 
+u32 matsu_sd_readl(struct matsu_sd_priv *priv, unsigned int reg);
+void matsu_sd_writel(struct matsu_sd_priv *priv,
+		     u32 val, unsigned int reg);
+
 #endif /* __MATSUSHITA_COMMON_H__ */