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authorLan Tianyu <tianyu.lan@intel.com>2015-04-01 09:47:18 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-04-02 02:21:41 +0200
commit1c832b3e85b6ac35e5f113fa4204eb725c54794e (patch)
treec111bfd737eb1c6537f9d29d5efe25994925d9b0 /drivers/acpi/ec.c
parent770970f0b40a7c303765f0593acd4ceeb54831f7 (diff)
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ACPI / EC: Call acpi_walk_dep_device_list() after installing EC opregion handler
On some machines(E,G Mircosoft surface 3), ACPI battery depends on the EC operation region and it has _DEP method which contains EC. Current code doesn't support such devices whose dep_unmet will be not be decreased after EC opregion handler being installed. This blocks battery device to be attached with its driver. This patch is to fix the issue. Link: https://bugzilla.kernel.org/show_bug.cgi?id=90161 Reported-and-tested-by: Lompik <lompik@voila.fr> Tested-by: Valentin Lab <valentin.lab_bugzilla.kernel.org@kalysto.org> Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
-rw-r--r--drivers/acpi/ec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index a362f20c6c8b..220d6406c9e9 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1147,6 +1147,9 @@ static int acpi_ec_add(struct acpi_device *device)
ret = ec_install_handlers(ec);
+ /* Reprobe devices depending on the EC */
+ acpi_walk_dep_device_list(ec->handle);
+
/* EC is fully operational, allow queries */
clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);