This is a note to let you know that I've just added the patch titled mmc: sdhci: Restore behavior while creating OCR mask to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mmc-sdhci-restore-behavior-while-creating-ocr-mask.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 5fd26c7ecb32082745b0bd33c8e35badd1cb5a91 Mon Sep 17 00:00:00 2001 From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Date: Fri, 5 Jun 2015 11:40:08 +0200 Subject: mmc: sdhci: Restore behavior while creating OCR mask From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> commit 5fd26c7ecb32082745b0bd33c8e35badd1cb5a91 upstream. 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@xxxxxxxxx> Reported-by: Yangbo Lu <yangbo.lu@xxxxxxxxxxxxx> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Reviewed-by: Tim Kryger <tim.kryger@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mmc/host/sdhci.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3315,13 +3315,14 @@ int sdhci_add_host(struct sdhci_host *ho 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) Patches currently in stable-queue which might be from ulf.hansson@xxxxxxxxxx are queue-4.1/mmc-sdhci-restore-behavior-while-creating-ocr-mask.patch queue-4.1/mmc-block-add-missing-mmc_blk_put-in-power_ro_lock_show.patch queue-4.1/mmc-card-fixup-request-missing-in-mmc_blk_issue_rw_rq.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html