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authorAlexander Graf <agraf@suse.de>2013-08-29 00:41:59 +0200
committerAlexander Graf <agraf@suse.de>2013-08-29 00:41:59 +0200
commitbf550fc93d9855872a95e69e4002256110d89858 (patch)
tree10876bb4304bffe54c4160a132e7b8de6577ac4e /drivers/mmc/host/tmio_mmc.h
parentKVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate() (diff)
parentKVM: x86: Update symbolic exit codes (diff)
downloadlinux-dev-bf550fc93d9855872a95e69e4002256110d89858.tar.xz
linux-dev-bf550fc93d9855872a95e69e4002256110d89858.zip
Merge remote-tracking branch 'origin/next' into kvm-ppc-next
Conflicts: mm/Kconfig CMA DMA split and ZSWAP introduction were conflicting, fix up manually.
Diffstat (limited to 'drivers/mmc/host/tmio_mmc.h')
-rw-r--r--drivers/mmc/host/tmio_mmc.h21
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index d857f5c6e7d9..86fd21e00099 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -40,6 +40,22 @@
struct tmio_mmc_data;
+/*
+ * We differentiate between the following 3 power states:
+ * 1. card slot powered off, controller stopped. This is used, when either there
+ * is no card in the slot, or the card really has to be powered down.
+ * 2. card slot powered on, controller stopped. This is used, when a card is in
+ * the slot, but no activity is currently taking place. This is a power-
+ * saving mode with card-state preserved. This state can be entered, e.g.
+ * when MMC clock-gating is used.
+ * 3. card slot powered on, controller running. This is the actual active state.
+ */
+enum tmio_mmc_power {
+ TMIO_MMC_OFF_STOP, /* card power off, controller stopped */
+ TMIO_MMC_ON_STOP, /* card power on, controller stopped */
+ TMIO_MMC_ON_RUN, /* card power on, controller running */
+};
+
struct tmio_mmc_host {
void __iomem *ctl;
unsigned long bus_shift;
@@ -48,8 +64,8 @@ struct tmio_mmc_host {
struct mmc_data *data;
struct mmc_host *mmc;
- /* Controller power state */
- bool power;
+ /* Controller and card power state */
+ enum tmio_mmc_power power;
/* Callbacks for clock / power control */
void (*set_pwr)(struct platform_device *host, int state);
@@ -85,6 +101,7 @@ struct tmio_mmc_host {
unsigned long last_req_ts;
struct mutex ios_lock; /* protect set_ios() context */
bool native_hotplug;
+ bool resuming;
};
int tmio_mmc_host_probe(struct tmio_mmc_host **host,