[PATCH] mmc: display an error number to debug

[Jaehoon Chung]

It's useful to know an error number when it's debugging.

Signed-off-by: Jaehoon Chung <jh80.chung at samsung.com>
---
 drivers/mmc/mmc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 7783535d0953..2457c6fef97a 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2179,7 +2179,7 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps)
 					err = mmc_execute_tuning(mmc,
 								 mwt->tuning);
 					if (err) {
-						pr_debug("tuning failed\n");
+						pr_debug("tuning failed : %d\n", err);
 						goto error;
 					}
 				}
@@ -2200,7 +2200,7 @@ error:
 		}
 	}
 
-	pr_err("unable to select a mode\n");
+	pr_err("unable to select a mode : %d\n", err);
 
 	return -ENOTSUPP;
 }
@@ -2746,7 +2746,7 @@ static int mmc_power_on(struct mmc *mmc)
 		int ret = regulator_set_enable(mmc->vmmc_supply, true);
 
 		if (ret) {
-			puts("Error enabling VMMC supply\n");
+			puts("Error enabling VMMC supply : %d\n", ret);
 			return ret;
 		}
 	}
@@ -2762,7 +2762,7 @@ static int mmc_power_off(struct mmc *mmc)
 		int ret = regulator_set_enable(mmc->vmmc_supply, false);
 
 		if (ret) {
-			pr_debug("Error disabling VMMC supply\n");
+			pr_debug("Error disabling VMMC supply : %d\n", ret);
 			return ret;
 		}
 	}
@@ -2866,7 +2866,7 @@ retry:
 
 		if (err) {
 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
-			pr_err("Card did not respond to voltage select!\n");
+			pr_err("Card did not respond to voltage select! : %d\n", err);
 #endif
 			return -EOPNOTSUPP;
 		}
-- 
2.29.0