drm/radeon/kms/atom/dce3: fix up usPixelClock calculation for Transmitter tables
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 2aa5994..355b0fb 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -725,10 +725,10 @@
if (ASIC_IS_DCE32(rdev)) {
if (radeon_encoder->pixel_clock > 165000) {
- args.v2.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock * 10 * 2) / 100);
+ args.v2.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
args.v2.acConfig.fDualLinkConnector = 1;
} else {
- args.v2.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock * 10 * 4) / 100);
+ args.v2.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
}
if (dig->dig_block)
args.v2.acConfig.ucEncoderSel = 1;
@@ -754,7 +754,10 @@
}
} else {
args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;
- args.v1.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock) / 10);
+ if (radeon_encoder->pixel_clock > 165000)
+ args.v1.usPixelClock = cpu_to_le16((radeon_encoder->pixel_clock / 2) / 10);
+ else
+ args.v1.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: