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authorDmytro Laktyushkin2018-08-08 18:27:55 -0400
committerAlex Deucher2018-08-21 14:16:43 -0500
commit39a3cd6783521cb9ec463033ea6a24e42c2d5508 (patch)
treea843ef661efbacbd6e1542c31a34733a9e668976
parent66b198ffc934089c24f8a12436d46fdc283eaed8 (diff)
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>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c10
1 files changed, 8 insertions, 2 deletions
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 684da3db7568..d425d4489518 100644
--- 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);
}
}