[PATCH 6/8] mci: export mci_get_ext_csd as helper

[Marco Felsch <m.felsch@pengutronix.de>]

Make the mci_get_ext_csd() function a helper to make it usable for
others.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 commands/mmc.c         | 17 -----------------
 drivers/mci/mci-core.c | 17 +++++++++++++++++
 include/mci.h          |  1 +
 3 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/commands/mmc.c b/commands/mmc.c
index 4259dbb763d1..fa01b89cdf42 100644
--- a/commands/mmc.c
+++ b/commands/mmc.c
@@ -65,23 +65,6 @@ static int mmc_partitioning_complete(struct mci *mci)
 	return ret;
 }
 
-static u8 *mci_get_ext_csd(struct mci *mci)
-{
-	u8 *ext_csd;
-	int ret;
-
-	ext_csd = xmalloc(512);
-
-	ret = mci_send_ext_csd(mci, ext_csd);
-	if (ret) {
-		printf("Failure to read EXT_CSD register\n");
-		free(ext_csd);
-		return ERR_PTR(-EIO);
-	}
-
-	return ext_csd;
-}
-
 /* enh_area [-c] /dev/mmcX */
 static int do_mmc_enh_area(int argc, char *argv[])
 {
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c
index 1276920e1604..8ce97b5d5cdd 100644
--- a/drivers/mci/mci-core.c
+++ b/drivers/mci/mci-core.c
@@ -518,6 +518,23 @@ int mci_switch(struct mci *mci, unsigned index, unsigned value)
 	return 0;
 }
 
+u8 *mci_get_ext_csd(struct mci *mci)
+{
+	u8 *ext_csd;
+	int ret;
+
+	ext_csd = xmalloc(512);
+
+	ret = mci_send_ext_csd(mci, ext_csd);
+	if (ret) {
+		printf("Failure to read EXT_CSD register\n");
+		free(ext_csd);
+		return ERR_PTR(-EIO);
+	}
+
+	return ext_csd;
+}
+
 static blkcnt_t mci_calc_blk_cnt(blkcnt_t cap, unsigned shift)
 {
 	blkcnt_t ret = cap >> shift;
diff --git a/include/mci.h b/include/mci.h
index 4fed8d739284..1ef44a3a76b0 100644
--- a/include/mci.h
+++ b/include/mci.h
@@ -545,6 +545,7 @@ void mci_of_parse_node(struct mci_host *host, struct device_node *np);
 int mci_detect_card(struct mci_host *);
 int mci_send_ext_csd(struct mci *mci, char *ext_csd);
 int mci_switch(struct mci *mci, unsigned index, unsigned value);
+u8 *mci_get_ext_csd(struct mci *mci);
 
 static inline int mmc_host_is_spi(struct mci_host *host)
 {
-- 
2.39.2