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ACPI: thinkpad-acpi: clean up probing and move init to subdrivers

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Move most of the probing code to its own function, and most of the
subdriver-specific init code into subdriver init functions.

This allows us to not define pci_handle unless the dock subdriver is
enabled, as well.

This patch causes a minor userland interface change: if a subdriver doesn't
detect a capability, /proc entries for it are not created anymore (as
opposed to a /proc entry that just returned "unsupported").

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Henrique de Moraes Holschuh
2007-04-21 11:08:31 -03:00
committed by Len Brown
parent 132ce09123
commit 5fba344cfd
2 changed files with 151 additions and 84 deletions
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4
drivers/misc/thinkpad_acpi.h
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@@ -104,7 +104,7 @@ static acpi_handle ecrd_handle, ecwr_handle; /* 570 EC access */
static acpi_handle cmos_handle, hkey_handle; /* basic thinkpad handles */
static void ibm_handle_init(char *name,
acpi_handle * handle, acpi_handle parent,
acpi_handle *handle, acpi_handle parent,
char **paths, int num_paths, char **path);
#define IBM_HANDLE_INIT(object) \
ibm_handle_init(#object, &object##_handle, *object##_parent, \
@@ -242,8 +242,8 @@ static int cmos_write(char *buf);
* Dock subdriver
*/
static acpi_handle pci_handle;
#ifdef CONFIG_THINKPAD_ACPI_DOCK
static acpi_handle pci_handle;
static acpi_handle dock_handle;
static void dock_notify(struct ibm_struct *ibm, u32 event);