From: Dmytro Laktyushkin Date: Wed, 8 Aug 2018 22:27:55 +0000 (-0400) Subject: drm/amd/display: fix dentist did ranges X-Git-Tag: Ubuntu-5.2.0-15.16~3688^2~1^2~9 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=39a3cd6783521cb9ec463033ea6a24e42c2d5508;p=mirror_ubuntu-eoan-kernel.git 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 Reviewed-by: Charlene Liu Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- 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); } }