From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Fri, 21 Aug 2015 14:26:41 +0000 (+0200)
Subject: mmc: add function to get the number of available mmc interfaces
X-Git-Tag: KARO-TX6-2015-09-18~4034^2^2~3
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=a9cce7ec02702895ada388ec53ef4b30a40f4bb8

mmc: add function to get the number of available mmc interfaces
---

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 85e9509ed1..0c2fe351ba 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -20,6 +20,7 @@
 
 static struct list_head mmc_devices;
 static int cur_dev_num = -1;
+static int mmc_dev_count;
 
 __weak int board_mmc_getwp(struct mmc *mmc)
 {
@@ -1549,6 +1550,7 @@ struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)
 	INIT_LIST_HEAD(&mmc->link);
 
 	list_add_tail(&mmc->link, &mmc_devices);
+	mmc_dev_count++;
 
 	return mmc;
 }
@@ -1721,6 +1723,11 @@ int get_mmc_num(void)
 	return cur_dev_num;
 }
 
+int get_mmc_dev_count(void)
+{
+	return mmc_dev_count;
+}
+
 void mmc_set_preinit(struct mmc *mmc, int preinit)
 {
 	mmc->preinit = preinit;
diff --git a/include/mmc.h b/include/mmc.h
index 09101e2c87..c0bcfb9076 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -373,6 +373,7 @@ struct mmc *find_mmc_device(int dev_num);
 int mmc_set_dev(int dev_num);
 void print_mmc_devices(char separator);
 int get_mmc_num(void);
+int get_mmc_dev_count(void);
 int mmc_switch_part(int dev_num, unsigned int part_num);
 int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf,
 		      enum mmc_hwpart_conf_mode mode);