drm/amd/display: fix dentist did ranges

Dentist did ranges were incomplete as max setting has an unusual
divider step up of 66.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
index 684da3d..d425d44 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
@@ -106,7 +106,8 @@ enum dentist_base_divider_id {
        DENTIST_BASE_DID_1 = 0x08,
        DENTIST_BASE_DID_2 = 0x40,
        DENTIST_BASE_DID_3 = 0x60,
-       DENTIST_MAX_DID    = 0x80
+       DENTIST_BASE_DID_4 = 0x7e,
+       DENTIST_MAX_DID = 0x7f
 };
 
 /* Starting point and step size for each divider range.*/
@@ -117,6 +118,8 @@ enum dentist_divider_range {
        DENTIST_DIVIDER_RANGE_2_STEP  = 2,   /* 0.50  */
        DENTIST_DIVIDER_RANGE_3_START = 128, /* 32.00 */
        DENTIST_DIVIDER_RANGE_3_STEP  = 4,   /* 1.00  */
+       DENTIST_DIVIDER_RANGE_4_START = 248, /* 62.00 */
+       DENTIST_DIVIDER_RANGE_4_STEP  = 264, /* 66.00 */
        DENTIST_DIVIDER_RANGE_SCALE_FACTOR = 4
 };
 
@@ -133,9 +136,12 @@ static int dentist_get_divider_from_did(int did)
        } else if (did < DENTIST_BASE_DID_3) {
                return DENTIST_DIVIDER_RANGE_2_START + DENTIST_DIVIDER_RANGE_2_STEP
                                                        * (did - DENTIST_BASE_DID_2);
-       } else {
+       } else if (did < DENTIST_BASE_DID_4) {
                return DENTIST_DIVIDER_RANGE_3_START + DENTIST_DIVIDER_RANGE_3_STEP
                                                        * (did - DENTIST_BASE_DID_3);
+       } else {
+               return DENTIST_DIVIDER_RANGE_4_START + DENTIST_DIVIDER_RANGE_4_STEP
+                                                       * (did - DENTIST_BASE_DID_4);
        }
 }