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authorUlf Hansson <ulf.hansson@linaro.org>2015-06-05 12:40:08 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2015-06-08 10:49:57 +0300
commit5fd26c7ecb32082745b0bd33c8e35badd1cb5a91 (patch)
tree168a7b579b0c2b78ba471bc8a2581de049bb741d /drivers/mmc
parent83dc9fecd5d4c84e9405c91098ae9dc07c201b90 (diff)
downloadlinux-5fd26c7ecb32082745b0bd33c8e35badd1cb5a91.tar.xz
mmc: sdhci: Restore behavior while creating OCR mask
Commit 3a48edc4bd68 ("mmc: sdhci: Use mmc core regulator infrastucture") changed the behavior for how to assign the ocr_avail mask for the mmc host. More precisely it started to mask the bits instead of assigning them. Restore the behavior, but also make it clear that an OCR mask created from an external regulator overrides the other ones. The OCR mask is determined by one of the following with this priority: 1. Supported ranges of external regulator if one supplies VDD 2. Host OCR mask if set by the driver (based on DT properties) 3. The capabilities reported by the controller itself Fixes: 3a48edc4bd68 ("mmc: sdhci: Use mmc core regulator infrastucture") Cc: Tim Kryger <tim.kryger@gmail.com> Reported-by: Yangbo Lu <yangbo.lu@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@gmail.com>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1b4861ddfb38..706bb604688a 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3256,13 +3256,14 @@ int sdhci_add_host(struct sdhci_host *host)
SDHCI_MAX_CURRENT_MULTIPLIER;
}
- /* If OCR set by external regulators, use it instead */
+ /* If OCR set by host, use it instead. */
+ if (host->ocr_mask)
+ ocr_avail = host->ocr_mask;
+
+ /* If OCR set by external regulators, give it highest prio. */
if (mmc->ocr_avail)
ocr_avail = mmc->ocr_avail;
- if (host->ocr_mask)
- ocr_avail &= host->ocr_mask;
-
mmc->ocr_avail = ocr_avail;
mmc->ocr_avail_sdio = ocr_avail;
if (host->ocr_avail_sdio)