Revert "radeon, kdb, kms: Save and restore the LUT on atomic KMS enter/exit"

This reverts commit ff773714.

A generic solution is needed to save and retore the LUT information.

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_display.c

@@ -138,38 +138,6 @@ void radeon_crtc_load_lut(struct drm_crtc *crtc)
 		legacy_crtc_load_lut(crtc);
 }
 
-void radeon_crtc_save_lut(struct drm_crtc *crtc)
-{
-	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-	int i;
-
-	if (!crtc->enabled)
-		return;
-
-	for (i = 0; i < 256; i++) {
-		radeon_crtc->lut_r_copy[i] = radeon_crtc->lut_r[i];
-		radeon_crtc->lut_g_copy[i] = radeon_crtc->lut_g[i];
-		radeon_crtc->lut_b_copy[i] = radeon_crtc->lut_b[i];
-	}
-}
-
-void radeon_crtc_restore_lut(struct drm_crtc *crtc)
-{
-	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
-	int i;
-
-	if (!crtc->enabled)
-		return;
-
-	for (i = 0; i < 256; i++) {
-		radeon_crtc->lut_r[i] = radeon_crtc->lut_r_copy[i];
-		radeon_crtc->lut_g[i] = radeon_crtc->lut_g_copy[i];
-		radeon_crtc->lut_b[i] = radeon_crtc->lut_b_copy[i];
-	}
-
-	radeon_crtc_load_lut(crtc);
-}
-
 /** Sets the color ramps on behalf of fbcon */
 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 			      u16 blue, int regno)

drivers/gpu/drm/radeon/radeon_legacy_crtc.c

@@ -355,11 +355,6 @@ int radeon_crtc_set_base_atomic(struct drm_crtc *crtc,
 				struct drm_framebuffer *fb,
 				int x, int y, int enter)
 {
-	if (enter)
-		radeon_crtc_save_lut(crtc);
-	else
-		radeon_crtc_restore_lut(crtc);
-
 	return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
 }
 

drivers/gpu/drm/radeon/radeon_mode.h

@@ -261,7 +261,6 @@ struct radeon_crtc {
 	struct drm_crtc base;
 	int crtc_id;
 	u16 lut_r[256], lut_g[256], lut_b[256];
-	u16 lut_r_copy[256], lut_g_copy[256], lut_b_copy[256];
 	bool enabled;
 	bool can_tile;
 	uint32_t crtc_offset;
@@ -523,8 +522,6 @@ extern int atombios_get_encoder_mode(struct drm_encoder *encoder);
 extern void radeon_encoder_set_active_device(struct drm_encoder *encoder);
 
 extern void radeon_crtc_load_lut(struct drm_crtc *crtc);
-extern void radeon_crtc_save_lut(struct drm_crtc *crtc);
-extern void radeon_crtc_restore_lut(struct drm_crtc *crtc);
 extern int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 				   struct drm_framebuffer *old_fb);
 extern int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,