drm/amdgpu: Initialize dce_virtual_crtc_funcs. (v2)

For virtual display feature, initialize dce_virtual_crtc_funcs.

v2: agd: rebase on upstream

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 28 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
index 11f04ec51c9c..d6802be0ea39 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
@@ -125,13 +125,37 @@ static void dce_virtual_bandwidth_update(struct amdgpu_device *adev)
         return;
 }
 
+static int dce_virtual_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
+                                      u16 *green, u16 *blue, uint32_t size)
+{
+        struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+        int i;
+
+        /* userspace palettes are always correct as is */
+        for (i = 0; i < size; i++) {
+                amdgpu_crtc->lut_r[i] = red[i] >> 6;
+                amdgpu_crtc->lut_g[i] = green[i] >> 6;
+                amdgpu_crtc->lut_b[i] = blue[i] >> 6;
+        }
+
+        return 0;
+}
+
+static void dce_virtual_crtc_destroy(struct drm_crtc *crtc)
+{
+        struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+
+        drm_crtc_cleanup(crtc);
+        kfree(amdgpu_crtc);
+}
+
 static const struct drm_crtc_funcs dce_virtual_crtc_funcs = {
         .cursor_set2 = NULL,
         .cursor_move = NULL,
-        .gamma_set = NULL,
-        .set_config = NULL,
-        .destroy = NULL,
-        .page_flip = NULL,
+        .gamma_set = dce_virtual_crtc_gamma_set,
+        .set_config = amdgpu_crtc_set_config,
+        .destroy = dce_virtual_crtc_destroy,
+        .page_flip = amdgpu_crtc_page_flip,
 };
 
 static void dce_virtual_crtc_dpms(struct drm_crtc *crtc, int mode)