drm/radeon/kms: rework spread spectrum handling

This patch reworks spread spectrum handling to enable it
properly on lvds and DP/eDP links.  It also fixes several
bugs in the old spread spectrum code.

- Use the ss recommended reference divider if available
when calculating the pll
- Use the proper ss command tables on pre-DCE3 asics
- Avoid reading past the end of the ss info tables
- Enable ss on evergreen asics (lvds, dp, tmds)
- Enable ss on DP/eDP links

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 2c293e8304d..ae58b6849a2 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -529,9 +529,9 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
                                 args.v1.ucMisc |= PANEL_ENCODER_MISC_HDMI_TYPE;
                         args.v1.usPixelClock = cpu_to_le16(radeon_encoder->pixel_clock / 10);
                         if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
-                                if (dig->lvds_misc & ATOM_PANEL_MISC_DUAL)
+                                if (dig->lcd_misc & ATOM_PANEL_MISC_DUAL)
                                         args.v1.ucMisc |= PANEL_ENCODER_MISC_DUAL;
-                                if (dig->lvds_misc & ATOM_PANEL_MISC_888RGB)
+                                if (dig->lcd_misc & ATOM_PANEL_MISC_888RGB)
                                         args.v1.ucMisc |= (1 << 1);
                         } else {
                                 if (dig->linkb)
@@ -558,18 +558,18 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
                         args.v2.ucTemporal = 0;
                         args.v2.ucFRC = 0;
                         if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
-                                if (dig->lvds_misc & ATOM_PANEL_MISC_DUAL)
+                                if (dig->lcd_misc & ATOM_PANEL_MISC_DUAL)
                                         args.v2.ucMisc |= PANEL_ENCODER_MISC_DUAL;
-                                if (dig->lvds_misc & ATOM_PANEL_MISC_SPATIAL) {
+                                if (dig->lcd_misc & ATOM_PANEL_MISC_SPATIAL) {
                                         args.v2.ucSpatial = PANEL_ENCODER_SPATIAL_DITHER_EN;
-                                        if (dig->lvds_misc & ATOM_PANEL_MISC_888RGB)
+                                        if (dig->lcd_misc & ATOM_PANEL_MISC_888RGB)
                                                 args.v2.ucSpatial |= PANEL_ENCODER_SPATIAL_DITHER_DEPTH;
                                 }
-                                if (dig->lvds_misc & ATOM_PANEL_MISC_TEMPORAL) {
+                                if (dig->lcd_misc & ATOM_PANEL_MISC_TEMPORAL) {
                                         args.v2.ucTemporal = PANEL_ENCODER_TEMPORAL_DITHER_EN;
-                                        if (dig->lvds_misc & ATOM_PANEL_MISC_888RGB)
+                                        if (dig->lcd_misc & ATOM_PANEL_MISC_888RGB)
                                                 args.v2.ucTemporal |= PANEL_ENCODER_TEMPORAL_DITHER_DEPTH;
-                                        if (((dig->lvds_misc >> ATOM_PANEL_MISC_GREY_LEVEL_SHIFT) & 0x3) == 2)
+                                        if (((dig->lcd_misc >> ATOM_PANEL_MISC_GREY_LEVEL_SHIFT) & 0x3) == 2)
                                                 args.v2.ucTemporal |= PANEL_ENCODER_TEMPORAL_LEVEL_4;
                                 }
                         } else {