[PATCH 06/13] drm/amdgpu: Initialize dce_virtual_crtc_funcs.

[Emily Deng]

For virtual display feature, initialize dce_virtual_crtc_funcs.

Signed-off-by: Emily Deng <Emily.Deng at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
index 6b9f645..b77c85e 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
@@ -125,13 +125,35 @@ static void dce_virtual_bandwidth_update(struct amdgpu_device *adev)
 	return;
 }
 
+static void dce_virtual_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+				    u16 *blue, uint32_t start, uint32_t size)
+{
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
+	int end = (start + size > 256) ? 256 : start + size, i;
+
+	/* userspace palettes are always correct as is */
+	for (i = start; i < end; 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;
+	}
+}
+
+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)
-- 
1.9.1