diff mbox series

[V4,1/6] mmc: core: Cleanup printing of speed mode at card insertion

Message ID 20220418115833.10738-2-jasonlai.genesyslogic@gmail.com
State New
Headers show
Series Preparations to support SD UHS-II cards | expand

Commit Message

Lai Jason April 18, 2022, 11:58 a.m. UTC 
From: Ulf Hansson <ulf.hansson@linaro.org>

The current print of the bus speed mode in mmc_add_card() has grown over
the years and is now difficult to parse. Let's clean up the code and also
take the opportunity to properly announce "DDR" for eMMCs as
"high speed DDR", which is according to the eMMC spec.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/mmc/core/bus.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 58a60afa650b..eefe74bf1356 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -299,6 +299,7 @@  int mmc_add_card(struct mmc_card *card)
 {
 	int ret;
 	const char *type;
+	const char *speed_mode = "";
 	const char *uhs_bus_speed_mode = "";
 	static const char *const uhs_speeds[] = {
 		[UHS_SDR12_BUS_SPEED] = "SDR12 ",
@@ -337,27 +338,30 @@  int mmc_add_card(struct mmc_card *card)
 		break;
 	}
 
+	if (mmc_card_hs(card))
+		speed_mode = "high speed ";
+	else if (mmc_card_uhs(card))
+		speed_mode = "ultra high speed ";
+	else if	(mmc_card_ddr52(card))
+		speed_mode = "high speed DDR ";
+	else if (mmc_card_hs200(card))
+		speed_mode = "HS200 ";
+	else if (mmc_card_hs400es(card))
+		speed_mode = "HS400 Enhanced strobe ";
+	else if (mmc_card_hs400(card))
+		speed_mode = "HS400 ";
+
 	if (mmc_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),
-			mmc_card_hs(card) ? "high speed " : "",
-			mmc_card_ddr52(card) ? "DDR " : "",
-			type);
-	} else {
-		pr_info("%s: new %s%s%s%s%s%s card at address %04x\n",
-			mmc_hostname(card->host),
-			mmc_card_uhs(card) ? "ultra high speed " :
-			(mmc_card_hs(card) ? "high speed " : ""),
-			mmc_card_hs400(card) ? "HS400 " :
-			(mmc_card_hs200(card) ? "HS200 " : ""),
-			mmc_card_hs400es(card) ? "Enhanced strobe " : "",
-			mmc_card_ddr52(card) ? "DDR " : "",
+	if (mmc_host_is_spi(card->host))
+		pr_info("%s: new %s%s card on SPI\n",
+			mmc_hostname(card->host), speed_mode, type);
+	else
+		pr_info("%s: new %s%s%s card at address %04x\n",
+			mmc_hostname(card->host), speed_mode,
 			uhs_bus_speed_mode, type, card->rca);
-	}
 
 #ifdef CONFIG_DEBUG_FS
 	mmc_add_card_debugfs(card);