提交 d3d0b024 编写于 作者: L Linus Torvalds

Merge branch 'amba-modalias' of...

Merge branch 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

* 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  sound: aaci: Enable module alias autogeneration for AMBA drivers
  watchdog: sp805: Enable module alias autogeneration for AMBA drivers
  fbdev: amba: Enable module alias autogeneration for AMBA drivers
  serial: pl011: Enable module alias autogeneration for AMBA drivers
  serial: pl010: Enable module alias autogeneration for AMBA drivers
  spi: pl022: Enable module alias autogeneration for AMBA drivers
  rtc: pl031: Enable module alias autogeneration for AMBA drivers
  rtc: pl030: Enable module alias autogeneration for AMBA drivers
  mmc: mmci: Enable module alias autogeneration for AMBA drivers
  input: ambakmi: Enable module alias autogeneration for AMBA drivers
  gpio: pl061: Enable module alias autogeneration for AMBA drivers
  dmaengine: pl330: Enable module alias autogeneration for AMBA drivers
  dmaengine: pl08x: Enable module alias autogeneration for AMBA drivers
  hwrng: nomadik: Enable module alias autogeneration for AMBA drivers
  ARM: amba: Auto-generate AMBA driver module aliases during modpost
  ARM: amba: Move definition of struct amba_id to mod_devicetable.h
......@@ -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
......
......@@ -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,
......
......@@ -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,
......
......@@ -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)
{
......
......@@ -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",
......
......@@ -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",
......
......@@ -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,
......
......@@ -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",
......
......@@ -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",
......
......@@ -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",
......
......@@ -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",
......
......@@ -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",
......
......@@ -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",
......
......@@ -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,
......
......@@ -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 *);
......
......@@ -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 */
......@@ -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);
}
......
......@@ -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,
......
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