Signed-off-by: Johan Rudholm <johan.rudholm@xxxxxxxxxxxxxx>
---
drivers/mmc/core/debugfs.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index d96c643..35c2f85 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -144,6 +144,22 @@ static int mmc_ios_show(struct seq_file *s, void *data)
}
seq_printf(s, "timing spec:\t%u (%s)\n", ios->timing, str);
+ switch (ios->signal_voltage) {
+ case MMC_SIGNAL_VOLTAGE_330:
+ str = "3.30 V";
+ break;
+ case MMC_SIGNAL_VOLTAGE_180:
+ str = "1.80 V";
+ break;
+ case MMC_SIGNAL_VOLTAGE_120:
+ str = "1.20 V";
+ break;
+ default:
+ str = "invalid";
+ break;
+ }
+ seq_printf(s, "signal voltage:\t%u (%s)\n", ios->chip_select, str);
+
return 0;
}
--
1.7.10
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