mmc: bus: print bus speed mode of UHS-I card

When UHS-I card is detected also print the bus speed mode in which
UHS-I card will be running.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 5d011a39dfff3b68a88813e202c76a4722fa3c57..3f606068d552ee738afe82516fff71bca47fc79d 100644 (file)
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -267,6 +267,15 @@ int mmc_add_card(struct mmc_card *card)
 {
        int ret;
        const char *type;
+       const char *uhs_bus_speed_mode = "";
+       static const char *const uhs_speeds[] = {
+               [UHS_SDR12_BUS_SPEED] = "SDR12 ",
+               [UHS_SDR25_BUS_SPEED] = "SDR25 ",
+               [UHS_SDR50_BUS_SPEED] = "SDR50 ",
+               [UHS_SDR104_BUS_SPEED] = "SDR104 ",
+               [UHS_DDR50_BUS_SPEED] = "DDR50 ",
+       };
+
 
        dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca);
 
@@ -296,6 +305,10 @@ int mmc_add_card(struct mmc_card *card)
                break;
        }
 
+       if (mmc_sd_card_uhs(card) &&
+               (card->sd_bus_speed < ARRAY_SIZE(uhs_speeds)))
+               uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed];
+
        if (mmc_host_is_spi(card->host)) {
                pr_info("%s: new %s%s%s card on SPI\n",
                        mmc_hostname(card->host),
@@ -303,13 +316,13 @@ int mmc_add_card(struct mmc_card *card)
                        mmc_card_ddr_mode(card) ? "DDR " : "",
                        type);
        } else {
-               pr_info("%s: new %s%s%s%s card at address %04x\n",
+               pr_info("%s: new %s%s%s%s%s card at address %04x\n",
                        mmc_hostname(card->host),
                        mmc_card_uhs(card) ? "ultra high speed " :
                        (mmc_card_highspeed(card) ? "high speed " : ""),
                        (mmc_card_hs200(card) ? "HS200 " : ""),
                        mmc_card_ddr_mode(card) ? "DDR " : "",
-                       type, card->rca);
+                       uhs_bus_speed_mode, type, card->rca);
        }
 
 #ifdef CONFIG_DEBUG_FS