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 Tested-and-reported-by: Lompik <lom...@voila.fr> Tested-by: Valentin Lab <valentin.lab_bugzilla.kernel....@kalysto.org> Signed-off-by: Lan Tianyu <tianyu....@intel.com> --- drivers/acpi/ec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a362f20..220d640 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); -- 1.8.4.rc0.1.g8f6a3e5.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
