mmc: fsl_esdhc_imx.c: fix compiler warning

prevent unsued variable compiler warning if
DM_REGULATOR is not set.

Signed-off-by: Heiko Schocher <hs@denx.de>

diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
index f47a095c50fb38227272c4977dd926fb095c82c6..8ac859797f043095f33ce728c8415c2c86e38a6b 100644 (file)
--- a/drivers/mmc/fsl_esdhc_imx.c
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -790,7 +790,9 @@ static int esdhc_set_voltage(struct mmc *mmc)
 {
        struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
        struct fsl_esdhc *regs = priv->esdhc_regs;
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
        int ret;
+#endif
 
        priv->signal_voltage = mmc->signal_voltage;
        switch (mmc->signal_voltage) {