From: Shawn Lin <shawn.lin@rock-chips.com>
Date: Tue, 22 Sep 2015 01:20:08 +0000 (+0800)
Subject: mmc: debugfs: implement ios show for driver type
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=d1f23f9304f303e15200c8b7940eeeeb1a1c8c6a;p=deliverable%2Flinux.git

mmc: debugfs: implement ios show for driver type

This patch add ios->drv_type for mmc_ios_show to show the
card's driver type.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index e9142108a6c6..9adba8d55980 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -166,6 +166,25 @@ static int mmc_ios_show(struct seq_file *s, void *data)
 	}
 	seq_printf(s, "signal voltage:\t%u (%s)\n", ios->chip_select, str);
 
+	switch (ios->drv_type) {
+	case MMC_SET_DRIVER_TYPE_A:
+		str = "driver type A";
+		break;
+	case MMC_SET_DRIVER_TYPE_B:
+		str = "driver type B";
+		break;
+	case MMC_SET_DRIVER_TYPE_C:
+		str = "driver type C";
+		break;
+	case MMC_SET_DRIVER_TYPE_D:
+		str = "driver type D";
+		break;
+	default:
+		str = "invalid";
+		break;
+	}
+	seq_printf(s, "driver type:\t%u (%s)\n", ios->drv_type, str);
+
 	return 0;
 }