Hi,
shouldn't we add something like that do auto-detect MMC_CAP_1_8V_DDR on
sdhci controller ?
Matthieu
>From f821501dada7041521fe80a5fe92bdc8b15f055b Mon Sep 17 00:00:00 2001
From: Matthieu CASTET <matthieu.castet@xxxxxxxxxx>
Date: Fri, 18 Apr 2014 15:49:05 +0200
Subject: [PATCH] sdhci : UHS DDR50 implies MMC DDR
---
drivers/mmc/host/sdhci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9a79fc4..2b7478e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2971,6 +2971,11 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps[0] & SDHCI_CAN_DO_HISPD)
mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
+ /* DDR50 implies MMC DDR at 1.8 or 3.3 */
+ if ((caps[1] & SDHCI_SUPPORT_DDR50) &&
+ !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50))
+ mmc->caps |= MMC_CAP_1_8V_DDR;
+
if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) &&
!(host->mmc->caps & MMC_CAP_NONREMOVABLE))
mmc->caps |= MMC_CAP_NEEDS_POLL;
--
1.9.2
