18 files changed, 123 insertions, 6 deletions

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index bd230e801131..936c98cb2475 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -52,6 +52,10 @@ static int amba_uevent(struct device *dev, struct kobj_uevent_env *env)
         int retval = 0;
 
         retval = add_uevent_var(env, "AMBA_ID=%08x", pcdev->periphid);
+        if (retval)
+                return retval;
+
+        retval = add_uevent_var(env, "MODALIAS=amba:d%08X", pcdev->periphid);
         return retval;
 }
 #else
diff --git a/drivers/char/hw_random/nomadik-rng.c b/drivers/char/hw_random/nomadik-rng.c
index 52e08ca3ccd7..3d3c1e6703b4 100644
--- a/drivers/char/hw_random/nomadik-rng.c
+++ b/drivers/char/hw_random/nomadik-rng.c
@@ -95,6 +95,8 @@ static struct amba_id nmk_rng_ids[] = {
         {0, 0},
 };
 
+MODULE_DEVICE_TABLE(amba, nmk_rng_ids);
+
 static struct amba_driver nmk_rng_driver = {
         .drv = {
                 .owner = THIS_MODULE,
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index b7cbd1ab1db1..0698695e8bf9 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -2054,6 +2054,8 @@ static struct amba_id pl08x_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl08x_ids);
+
 static struct amba_driver pl08x_amba_driver = {
         .drv.name       = DRIVER_NAME,
         .id_table       = pl08x_ids,
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 571041477ab2..2d8d1b041d95 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -990,6 +990,8 @@ static struct amba_id pl330_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl330_ids);
+
 #ifdef CONFIG_PM_RUNTIME
 static int pl330_runtime_suspend(struct device *dev)
 {
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 4102f63230fd..8f79c03049f3 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -346,6 +346,8 @@ static struct amba_id pl061_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl061_ids);
+
 static struct amba_driver pl061_gpio_driver = {
         .drv = {
                 .name   = "pl061_gpio",
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 12abc50508e5..8407d5b0ced8 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -195,6 +195,8 @@ static struct amba_id amba_kmi_idtable[] = {
         { 0, 0 }
 };
 
+MODULE_DEVICE_TABLE(amba, amba_kmi_idtable);
+
 static struct amba_driver ambakmi_driver = {
         .drv            = {
                 .name   = "kmi-pl050",
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 0726e59fd418..fa8dd2fda4b2 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1502,6 +1502,8 @@ static struct amba_id mmci_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, mmci_ids);
+
 static struct amba_driver mmci_driver = {
         .drv            = {
                 .name   = DRIVER_NAME,
diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index 1d28d4451dae..02111fee077e 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -174,6 +174,8 @@ static struct amba_id pl030_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl030_ids);
+
 static struct amba_driver pl030_driver = {
         .drv            = {
                 .name   = "rtc-pl030",
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index ff1b84bd9bb5..a952c8de1dd7 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -420,6 +420,8 @@ static struct amba_id pl031_ids[] = {
         {0, 0},
 };
 
+MODULE_DEVICE_TABLE(amba, pl031_ids);
+
 static struct amba_driver pl031_driver = {
         .drv = {
                 .name = "rtc-pl031",
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 5559b2299198..7026af195683 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2432,6 +2432,8 @@ static struct amba_id pl022_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl022_ids);
+
 static struct amba_driver pl022_driver = {
         .drv = {
                 .name   = "ssp-pl022",
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index efdf92c3a352..0d91a540bf11 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -795,6 +795,8 @@ static struct amba_id pl010_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl010_ids);
+
 static struct amba_driver pl010_driver = {
         .drv = {
                 .name   = "uart-pl010",
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 00233af1acc4..6958594f2fc0 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1994,6 +1994,8 @@ static struct amba_id pl011_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, pl011_ids);
+
 static struct amba_driver pl011_driver = {
         .drv = {
                 .name   = "uart-pl011",
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 2cda6ba0939b..0a2cce7285be 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -621,6 +621,8 @@ static struct amba_id clcdfb_id_table[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, clcdfb_id_table);
+
 static struct amba_driver clcd_driver = {
         .drv            = {
                 .name   = "clcd-pl11x",
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index bfaf9bb1ee0d..eef1524ae52e 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -359,6 +359,8 @@ static struct amba_id sp805_wdt_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, sp805_wdt_ids);
+
 static struct amba_driver sp805_wdt_driver = {
         .drv = {
                 .name   = MODULE_NAME,
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index fcbbe71a3cc1..724c69c40bb8 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -16,6 +16,7 @@
 
 #include <linux/clk.h>
 #include <linux/device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/err.h>
 #include <linux/resource.h>
 #include <linux/regulator/consumer.h>
@@ -35,12 +36,6 @@ struct amba_device {
         unsigned int            irq[AMBA_NR_IRQS];
 };
 
-struct amba_id {
-        unsigned int            id;
-        unsigned int            mask;
-        void                    *data;
-};
-
 struct amba_driver {
         struct device_driver    drv;
         int                     (*probe)(struct amba_device *, const struct amba_id *);
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 468819cdde87..83ac0713ed0a 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -542,4 +542,22 @@ struct isapnp_device_id {
         kernel_ulong_t driver_data;     /* data private to the driver */
 };
 
+/**
+ * struct amba_id - identifies a device on an AMBA bus
+ * @id: The significant bits if the hardware device ID
+ * @mask: Bitmask specifying which bits of the id field are significant when
+ *      matching.  A driver binds to a device when ((hardware device ID) & mask)
+ *      == id.
+ * @data: Private data used by the driver.
+ */
+struct amba_id {
+        unsigned int            id;
+        unsigned int            mask;
+#ifndef __KERNEL__
+        kernel_ulong_t          data;
+#else
+        void                    *data;
+#endif
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index f936d1fa969d..363ab4666b17 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -880,6 +880,74 @@ static int do_isapnp_entry(const char *filename,
         return 1;
 }
 
+/*
+ * Append a match expression for a single masked hex digit.
+ * outp points to a pointer to the character at which to append.
+ *      *outp is updated on return to point just after the appended text,
+ *      to facilitate further appending.
+ */
+static void append_nibble_mask(char **outp,
+                               unsigned int nibble, unsigned int mask)
+{
+        char *p = *outp;
+        unsigned int i;
+
+        switch (mask) {
+        case 0:
+                *p++ = '?';
+                break;
+
+        case 0xf:
+                p += sprintf(p, "%X",  nibble);
+                break;
+
+        default:
+                /*
+                 * Dumbly emit a match pattern for all possible matching
+                 * digits.  This could be improved in some cases using ranges,
+                 * but it has the advantage of being trivially correct, and is
+                 * often optimal.
+                 */
+                *p++ = '[';
+                for (i = 0; i < 0x10; i++)
+                        if ((i & mask) == nibble)
+                                p += sprintf(p, "%X", i);
+                *p++ = ']';
+        }
+
+        /* Ensure that the string remains NUL-terminated: */
+        *p = '\0';
+
+        /* Advance the caller's end-of-string pointer: */
+        *outp = p;
+}
+
+/*
+ * looks like: "amba:dN"
+ *
+ * N is exactly 8 digits, where each is an upper-case hex digit, or
+ *      a ? or [] pattern matching exactly one digit.
+ */
+static int do_amba_entry(const char *filename,
+                         struct amba_id *id, char *alias)
+{
+        unsigned int digit;
+        char *p = alias;
+
+        if ((id->id & id->mask) != id->id)
+                fatal("%s: Masked-off bit(s) of AMBA device ID are non-zero: "
+                      "id=0x%08X, mask=0x%08X.  Please fix this driver.\n",
+                      filename, id->id, id->mask);
+
+        p += sprintf(alias, "amba:d");
+        for (digit = 0; digit < 8; digit++)
+                append_nibble_mask(&p,
+                                   (id->id >> (4 * (7 - digit))) & 0xf,
+                                   (id->mask >> (4 * (7 - digit))) & 0xf);
+
+        return 1;
+}
+
 /* Ignore any prefix, eg. some architectures prepend _ */
 static inline int sym_is(const char *symbol, const char *name)
 {
@@ -1047,6 +1115,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
                 do_table(symval, sym->st_size,
                         sizeof(struct isapnp_device_id), "isa",
                         do_isapnp_entry, mod);
+        else if (sym_is(symname, "__mod_amba_device_table"))
+                do_table(symval, sym->st_size,
+                        sizeof(struct amba_id), "amba",
+                        do_amba_entry, mod);
         free(zeros);
 }
 
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index e518d38b1c74..b37b702a3a6a 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -1097,6 +1097,8 @@ static struct amba_id aaci_ids[] = {
         { 0, 0 },
 };
 
+MODULE_DEVICE_TABLE(amba, aaci_ids);
+
 static struct amba_driver aaci_driver = {
         .drv            = {
                 .name   = DRIVER_NAME,