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authorJaehoon Chung <jh80.chung@samsung.com>2010-09-27 09:42:20 +0100
committerChris Ball <cjb@laptop.org>2010-10-23 21:11:15 +0800
commit176d1ed426a2a73a87c62a8aa05f6d002353cd50 (patch)
tree0e15db36987071f8dd4b00363d3c35401b8f9c1c /drivers/mmc
parent71d7d3d190fe77588269a8febf93cd739bd91eb3 (diff)
mmc: sdhci: disable MMC_CAP_NEEDS_POLL in nonremovable case
When a controller requires SDHCI_QUIRK_BROKEN_CARD_DETECTION, we poll for card insertion/removal, and that creates interrupts. There's no need to be doing this if we have a non-removable card. This patch requires cards to be removable before we're willing to set MMC_CAP_NEEDS_POLL. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Matt Fleming <matt@console-pimps.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> [cjb: modified changelog and code indentation] Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 829e78a21a0..96c7f6010d0 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1849,7 +1849,8 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps & SDHCI_CAN_DO_HISPD)
mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
- if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
+ if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) &&
+ mmc_card_is_removable(mmc))
mmc->caps |= MMC_CAP_NEEDS_POLL;
mmc->ocr_avail = 0;