diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2013-05-06 12:17:32 +0300 |
|---|---|---|
| committer | Dong Aisheng <b29396@freescale.com> | 2013-11-08 21:45:29 +0800 |
| commit | 823a472122a94ba13cd5cf4cc58bb241fef7f9c9 (patch) | |
| tree | 5dff1d314e3255b6ac47498a5aac79fd8ea17172 /include | |
| parent | be802e506e13cddcd854f585aa966f3d4728299d (diff) | |
mmc: sdhci: add ability to stay runtime-resumed if the card is powered up
If card power is dependent on SD bus power then the host controller
must not be runtime suspended while the card is powered up. Add
the ability to stay runtime-resumed in that case and enable it with a new
quirk SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
(cherry picked from commit f0710a557cb17746b09234f01073a2cdafe4f4a5)
Diffstat (limited to 'include')
| -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 b838ffc49e4a..ba35bdb87d99 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -95,6 +95,7 @@ struct sdhci_host { /* The system physically doesn't support 1.8v, even if the host does */ #define SDHCI_QUIRK2_NO_1_8_V (1<<2) #define SDHCI_QUIRK2_PRESET_VALUE_BROKEN (1<<3) +#define SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON (1<<4) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ @@ -139,6 +140,7 @@ struct sdhci_host { u8 pwr; /* Current voltage */ bool runtime_suspended; /* Host is runtime suspended */ + bool bus_on; /* Bus power prevents runtime suspend */ struct mmc_request *mrq; /* Current request */ struct mmc_command *cmd; /* Current command */ |