drm/radeon/kms: fix interlaced modes on dce4+

- set scaler table clears the interleave bit, need to
reset it in encoder quirks, this was already done for
pre-dce4.
- remove the interleave settings from set_base() functions
this is now handled in the encoder quirks functions, and
isn't technically part of the display base setup.
- rename evergreen_do_set_base() to dce4_do_set_base() since
it's used on both evergreen and NI asics.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=28182

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

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index b153700..dd4e3ac 100644 (file)
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -995,9 +995,9 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
        }
 }
 
-static int evergreen_crtc_do_set_base(struct drm_crtc *crtc,
-                                     struct drm_framebuffer *fb,
-                                     int x, int y, int atomic)
+static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
+                                struct drm_framebuffer *fb,
+                                int x, int y, int atomic)
 {
        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
        struct drm_device *dev = crtc->dev;
@@ -1137,12 +1137,6 @@ static int evergreen_crtc_do_set_base(struct drm_crtc *crtc,
        WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
               (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay);
 
-       if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
-               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset,
-                      EVERGREEN_INTERLEAVE_EN);
-       else
-               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
-
        if (!atomic && fb && fb != crtc->fb) {
                radeon_fb = to_radeon_framebuffer(fb);
                rbo = radeon_fb->obj->driver_private;
@@ -1300,12 +1294,6 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
        WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
               (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay);
 
-       if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
-               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
-                      AVIVO_D1MODE_INTERLEAVE_EN);
-       else
-               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
-
        if (!atomic && fb && fb != crtc->fb) {
                radeon_fb = to_radeon_framebuffer(fb);
                rbo = radeon_fb->obj->driver_private;
@@ -1329,7 +1317,7 @@ int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
        struct radeon_device *rdev = dev->dev_private;
 
        if (ASIC_IS_DCE4(rdev))
-               return evergreen_crtc_do_set_base(crtc, old_fb, x, y, 0);
+               return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
        else if (ASIC_IS_AVIVO(rdev))
                return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
        else
@@ -1344,7 +1332,7 @@ int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
        struct radeon_device *rdev = dev->dev_private;
 
        if (ASIC_IS_DCE4(rdev))
-               return evergreen_crtc_do_set_base(crtc, fb, x, y, 1);
+               return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
        else if (ASIC_IS_AVIVO(rdev))
                return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
        else

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index d4a5422..5b38b73 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1570,11 +1570,21 @@ atombios_apply_encoder_quirks(struct drm_encoder *encoder,
        }
 
        /* set scaler clears this on some chips */
-       /* XXX check DCE4 */
-       if (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))) {
-               if (ASIC_IS_AVIVO(rdev) && (mode->flags & DRM_MODE_FLAG_INTERLACE))
-                       WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
-                              AVIVO_D1MODE_INTERLEAVE_EN);
+       if (ASIC_IS_AVIVO(rdev) &&
+           (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)))) {
+               if (ASIC_IS_DCE4(rdev)) {
+                       if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+                               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset,
+                                      EVERGREEN_INTERLEAVE_EN);
+                       else
+                               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
+               } else {
+                       if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+                               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
+                                      AVIVO_D1MODE_INTERLEAVE_EN);
+                       else
+                               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
+               }
        }
 }