mmc: matsushita-common: Handle bus width 0

Handle bus width 0 as 1-bit bus to assure valid content of
MATSU_SD_OPTION register WIDTH field.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/drivers/mmc/matsushita-common.c b/drivers/mmc/matsushita-common.c
index 11e4553d8734c08d9afd785dc25c291ce642bfa4..377f349b41a36f1108b42a55801f81b8c91bfe49 100644 (file)
--- a/drivers/mmc/matsushita-common.c
+++ b/drivers/mmc/matsushita-common.c
@@ -504,6 +504,7 @@ static int matsu_sd_set_bus_width(struct matsu_sd_priv *priv,
        u32 val, tmp;
 
        switch (mmc->bus_width) {
+       case 0:
        case 1:
                val = MATSU_SD_OPTION_WIDTH_1;
                break;