6 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 2ee22e8af110..d02d2c6e0cfe 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -99,6 +99,8 @@ struct mmc_card {
 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
         unsigned int            quirks;         /* card quirks */
 #define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
+#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
+                                                /* for byte mode */
 
         u32                     raw_cid[4];     /* raw card CID */
         u32                     raw_csd[4];     /* raw card CSD */
@@ -139,6 +141,11 @@ static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
         return c->quirks & MMC_QUIRK_LENIENT_FN0;
 }
 
+static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
+{
+        return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
+}
+
 #define mmc_card_name(c)        ((c)->cid.prod_name)
 #define mmc_card_id(c)          (dev_name(&(c)->dev))
 
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index eaf36364b7d4..43eaf5ca5848 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -14,6 +14,7 @@
 #include <linux/sched.h>
 
 #include <linux/mmc/core.h>
+#include <linux/mmc/pm.h>
 
 struct mmc_ios {
         unsigned int    clock;                  /* clock rate */
@@ -152,6 +153,8 @@ struct mmc_host {
 #define MMC_CAP_NONREMOVABLE    (1 << 8)        /* Nonremovable e.g. eMMC */
 #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9)        /* Waits while card is busy */
 
+        mmc_pm_flag_t           pm_caps;        /* supported pm features */
+
         /* host specific block data */
         unsigned int            max_seg_size;   /* see blk_queue_max_segment_size */
         unsigned short          max_hw_segs;    /* see blk_queue_max_hw_segments */
@@ -197,6 +200,8 @@ struct mmc_host {
         struct task_struct      *sdio_irq_thread;
         atomic_t                sdio_irq_thread_abort;
 
+        mmc_pm_flag_t           pm_flags;       /* requested pm features */
+
 #ifdef CONFIG_LEDS_TRIGGERS
         struct led_trigger      *led;           /* activity led */
 #endif
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index c02c8db73701..8a49cbf0376d 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -268,6 +268,7 @@ struct _mmc_csd {
 
 #define EXT_CSD_CARD_TYPE_26    (1<<0)  /* Card can run at 26MHz */
 #define EXT_CSD_CARD_TYPE_52    (1<<1)  /* Card can run at 52MHz */
+#define EXT_CSD_CARD_TYPE_MASK  0x3     /* Mask out reserved and DDR bits */
 
 #define EXT_CSD_BUS_WIDTH_1     0       /* Card is in 1 bit mode */
 #define EXT_CSD_BUS_WIDTH_4     1       /* Card is in 4 bit mode */
diff --git a/include/linux/mmc/pm.h b/include/linux/mmc/pm.h
new file mode 100644
index 000000000000..d37aac49cf9a
--- /dev/null
+++ b/include/linux/mmc/pm.h
@@ -0,0 +1,30 @@
+/*
+ * linux/include/linux/mmc/pm.h
+ *
+ * Author:      Nicolas Pitre
+ * Copyright:   (C) 2009 Marvell Technology Group Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef LINUX_MMC_PM_H
+#define LINUX_MMC_PM_H
+
+/*
+ * These flags are used to describe power management features that
+ * some cards (typically SDIO cards) might wish to benefit from when
+ * the host system is being suspended.  There are several layers of
+ * abstractions involved, from the host controller driver, to the MMC core
+ * code, to the SDIO core code, to finally get to the actual SDIO function
+ * driver.  This file is therefore used for common definitions shared across
+ * all those layers.
+ */
+
+typedef unsigned int mmc_pm_flag_t;
+
+#define MMC_PM_KEEP_POWER       (1 << 0)        /* preserve card power during suspend */
+#define MMC_PM_WAKE_SDIO_IRQ    (1 << 1)        /* wake up host system on SDIO IRQ assertion */
+
+#endif
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 118f0295a575..329a8faa6e37 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -97,6 +97,8 @@
 #define  SDIO_BUS_ECSI          0x20    /* Enable continuous SPI interrupt */
 #define  SDIO_BUS_SCSI          0x40    /* Support continuous SPI interrupt */
 
+#define  SDIO_BUS_ASYNC_INT     0x20
+
 #define  SDIO_BUS_CD_DISABLE     0x80   /* disable pull-up on DAT3 (pin 1) */
 
 #define SDIO_CCCR_CAPS          0x08
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index ac3ab683fec6..c6c0cceba5fe 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -15,6 +15,8 @@
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
 
+#include <linux/mmc/pm.h>
+
 struct mmc_card;
 struct sdio_func;
 
@@ -153,5 +155,8 @@ extern unsigned char sdio_f0_readb(struct sdio_func *func,
 extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b,
         unsigned int addr, int *err_ret);
 
+extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func);
+extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags);
+
 #endif