mtd: remove mtd_probe() function

The device_probe() function does the same thing as mtd_probe() and
mtd_probe() is only used in mtd_probe_uclass_mtd_devs(), where the
probing can be made simpler by using uclass_foreach_dev_probe macro.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Cc: Priyanka Jain <priyanka.jain@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@st.com>

drivers/mtd/mtd-uclass.c

@@ -9,21 +9,6 @@
 #include <errno.h>
 #include <mtd.h>
 
-/**
- * mtd_probe - Probe the device @dev if not already done
- *
- * @dev: U-Boot device to probe
- *
- * @return 0 on success, an error otherwise.
- */
-int mtd_probe(struct udevice *dev)
-{
-	if (device_active(dev))
-		return 0;
-
-	return device_probe(dev);
-}
-
 /*
  * Implement a MTD uclass which should include most flash drivers.
  * The uclass private is pointed to mtd_info.

drivers/mtd/mtd_uboot.c

@@ -9,6 +9,7 @@
 #include <malloc.h>
 #include <dm/device.h>
 #include <dm/uclass-internal.h>
+#include <dm/uclass.h>
 #include <linux/err.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
@@ -106,13 +107,9 @@ int mtd_search_alternate_name(const char *mtdname, char *altname,
 static void mtd_probe_uclass_mtd_devs(void)
 {
 	struct udevice *dev;
-	int idx = 0;
 
-	/* Probe devices with DM compliant drivers */
-	while (!uclass_find_device(UCLASS_MTD, idx, &dev) && dev) {
-		mtd_probe(dev);
-		idx++;
-	}
+	uclass_foreach_dev_probe(UCLASS_MTD, dev)
+		;
 }
 #else
 static void mtd_probe_uclass_mtd_devs(void) { }

include/mtd.h

@@ -8,7 +8,6 @@
 
 #include <linux/mtd/mtd.h>
 
-int mtd_probe(struct udevice *dev);
 int mtd_probe_devices(void);
 
 void board_mtdparts_default(const char **mtdids, const char **mtdparts);