1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 049041a47f8d..06657b71171c 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6139,13 +6139,13 @@ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
         TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC),      /* T43/p ATI */
 
         /* Models with ATI GPUs that can use ECNVRAM */
-        TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC),      /* R50,51 T40-42 */
         TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
-        TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
+        TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC),      /* R52 */
         TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
 
         /* Models with Intel Extreme Graphics 2 */
-        TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC),
+        TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC),    /* X40 */
         TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
         TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),