From 4170a6c1bc106d7fcf94f5842224ac4dac61006b Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 5 Nov 2009 01:16:23 -0500
Subject: 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>
---
drivers/gpu/drm/radeon/radeon_encoders.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
(limited to 'drivers')
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 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
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 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action)
}
} 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:
--
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