ACPI / PNP: add two IDs to list for PNPACPI device enumeration

commit 622532bb2fad8fe342fb685727ae0be566f6be5d upstream.

Commit eec15edbb0e1 (ACPI / PNP: use device ID list for PNPACPI device
enumeration) changed the way how ACPI devices are enumerated and when
they are added to the PNP bus.

However, it broke the sound card support on (at least) a vintage
IBM ThinkPad 600E: with said commit applied, two of the necessary
"CSC01xx" devices are not added to the PNP bus and hence can not be
found during the initialization of the "snd-cs4236" module.  As a
consequence, loading "snd-cs4236" causes null pointer exceptions.
The attached patch fixes the problem end re-enables sound on the
IBM ThinkPad 600E.

Fixes: eec15edbb0e1 (ACPI / PNP: use device ID list for PNPACPI device enumeration)
Signed-off-by: Witold Szczeponik <Witold.Szczeponik@gmx.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 4ddb0dca56f6c441ccb30029109d3671b45d456f..fa13db6823091c660d2a230dc55cf5eb98373418 100644 (file)
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -309,6 +309,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
        {"PNPb006"},
        /* cs423x-pnpbios */
        {"CSC0100"},
+       {"CSC0103"},
+       {"CSC0110"},
        {"CSC0000"},
        {"GIM0100"},            /* Guillemot Turtlebeach something appears to be cs4232 compatible */
        /* es18xx-pnpbios */