diff options
| author | Shridhar Rasal <srasal@nvidia.com> | 2012-02-07 21:02:47 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-02-09 16:05:26 -0800 |
| commit | 90c7ef70d1cd95d73d8e860209b06b1d0bae2c2f (patch) | |
| tree | 7bdb11bac85880abc365cdd1e701b7e011cf3d09 /include/linux/mmc | |
| parent | faaa975f6ff8719b2f1f2d3fa7bd69066362a171 (diff) | |
mmc: sdhci: quirk for not calculate max_discard_to
Adding SDHCI_QUIRK_NO_CALC_MAX_DISCARD_TO for not to calculate
max_discard_to which is deviation in setting max_discard.
For some host controllers, combination of
1) calculated non-zero value of max_discard_to and
2) erase_group_def not set
can result into setting max_discard value to pref_erase in
sectors which is very less, so it takes long time for erase.
With this change host controller can specify to calculate
max_discard_to and based on that max_discard value will be set.
bug 930767
Change-Id: I2c64ef8a6821620f2a65c06e25d2af68e3554a75
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/79839
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/sdhci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 19abccaf0fb0..061f70ec01f9 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -91,6 +91,8 @@ struct sdhci_host { #define SDHCI_QUIRK_NON_STD_VOLTAGE_SWITCHING (1ULL<<32) /* Controller doesn't follow the standard frequency tuning procedure */ #define SDHCI_QUIRK_NON_STANDARD_TUNING (1LL<<33) +/* Controller doesn't calculate max_discard_to */ +#define SDHCI_QUIRK_NO_CALC_MAX_DISCARD_TO (1LL<<34) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ |