drm/amdgpu: drop is_display_hung from display funcs

Not used.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -1632,7 +1632,6 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
 #define amdgpu_display_set_vga_render_state(adev, r) (adev)->mode_info.funcs->set_vga_render_state((adev), (r))
 #define amdgpu_display_vblank_get_counter(adev, crtc) (adev)->mode_info.funcs->vblank_get_counter((adev), (crtc))
 #define amdgpu_display_vblank_wait(adev, crtc) (adev)->mode_info.funcs->vblank_wait((adev), (crtc))
-#define amdgpu_display_is_display_hung(adev) (adev)->mode_info.funcs->is_display_hung((adev))
 #define amdgpu_display_backlight_set_level(adev, e, l) (adev)->mode_info.funcs->backlight_set_level((e), (l))
 #define amdgpu_display_backlight_get_level(adev, e) (adev)->mode_info.funcs->backlight_get_level((e))
 #define amdgpu_display_hpd_sense(adev, h) (adev)->mode_info.funcs->hpd_sense((adev), (h))

drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h

@@ -271,8 +271,6 @@ struct amdgpu_display_funcs {
 	u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
 	/* wait for vblank */
 	void (*vblank_wait)(struct amdgpu_device *adev, int crtc);
-	/* is dce hung */
-	bool (*is_display_hung)(struct amdgpu_device *adev);
 	/* set backlight level */
 	void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
 				    u8 level);

drivers/gpu/drm/amd/amdgpu/dce_v10_0.c

@@ -3750,7 +3750,6 @@ static const struct amdgpu_display_funcs dce_v10_0_display_funcs = {
 	.bandwidth_update = &dce_v10_0_bandwidth_update,
 	.vblank_get_counter = &dce_v10_0_vblank_get_counter,
 	.vblank_wait = &dce_v10_0_vblank_wait,
-	.is_display_hung = &dce_v10_0_is_display_hung,
 	.backlight_set_level = &amdgpu_atombios_encoder_set_backlight_level,
 	.backlight_get_level = &amdgpu_atombios_encoder_get_backlight_level,
 	.hpd_sense = &dce_v10_0_hpd_sense,

drivers/gpu/drm/amd/amdgpu/dce_v11_0.c

@@ -3806,7 +3806,6 @@ static const struct amdgpu_display_funcs dce_v11_0_display_funcs = {
 	.bandwidth_update = &dce_v11_0_bandwidth_update,
 	.vblank_get_counter = &dce_v11_0_vblank_get_counter,
 	.vblank_wait = &dce_v11_0_vblank_wait,
-	.is_display_hung = &dce_v11_0_is_display_hung,
 	.backlight_set_level = &amdgpu_atombios_encoder_set_backlight_level,
 	.backlight_get_level = &amdgpu_atombios_encoder_get_backlight_level,
 	.hpd_sense = &dce_v11_0_hpd_sense,

drivers/gpu/drm/amd/amdgpu/dce_v6_0.c

@@ -379,13 +379,6 @@ static u32 dce_v6_0_hpd_get_gpio_reg(struct amdgpu_device *adev)
 	return mmDC_GPIO_HPD_A;
 }
 
-static bool dce_v6_0_is_display_hung(struct amdgpu_device *adev)
-{
-	DRM_INFO("xxxx: dce_v6_0_is_display_hung ----no imp!!!!!\n");
-
-	return true;
-}
-
 static u32 evergreen_get_vblank_counter(struct amdgpu_device* adev, int crtc)
 {
 	if (crtc >= adev->mode_info.num_crtc)
@@ -3036,7 +3029,6 @@ static const struct amdgpu_display_funcs dce_v6_0_display_funcs = {
 	.bandwidth_update = &dce_v6_0_bandwidth_update,
 	.vblank_get_counter = &dce_v6_0_vblank_get_counter,
 	.vblank_wait = &dce_v6_0_vblank_wait,
-	.is_display_hung = &dce_v6_0_is_display_hung,
 	.backlight_set_level = &amdgpu_atombios_encoder_set_backlight_level,
 	.backlight_get_level = &amdgpu_atombios_encoder_get_backlight_level,
 	.hpd_sense = &dce_v6_0_hpd_sense,

drivers/gpu/drm/amd/amdgpu/dce_v8_0.c

@@ -3587,7 +3587,6 @@ static const struct amdgpu_display_funcs dce_v8_0_display_funcs = {
 	.bandwidth_update = &dce_v8_0_bandwidth_update,
 	.vblank_get_counter = &dce_v8_0_vblank_get_counter,
 	.vblank_wait = &dce_v8_0_vblank_wait,
-	.is_display_hung = &dce_v8_0_is_display_hung,
 	.backlight_set_level = &amdgpu_atombios_encoder_set_backlight_level,
 	.backlight_get_level = &amdgpu_atombios_encoder_get_backlight_level,
 	.hpd_sense = &dce_v8_0_hpd_sense,

drivers/gpu/drm/amd/amdgpu/dce_virtual.c

@@ -95,11 +95,6 @@ static u32 dce_virtual_hpd_get_gpio_reg(struct amdgpu_device *adev)
 	return 0;
 }
 
-static bool dce_virtual_is_display_hung(struct amdgpu_device *adev)
-{
-	return false;
-}
-
 static void dce_virtual_stop_mc_access(struct amdgpu_device *adev,
 			      struct amdgpu_mode_mc_save *save)
 {
@@ -691,7 +686,6 @@ static const struct amdgpu_display_funcs dce_virtual_display_funcs = {
 	.bandwidth_update = &dce_virtual_bandwidth_update,
 	.vblank_get_counter = &dce_virtual_vblank_get_counter,
 	.vblank_wait = &dce_virtual_vblank_wait,
-	.is_display_hung = &dce_virtual_is_display_hung,
 	.backlight_set_level = NULL,
 	.backlight_get_level = NULL,
 	.hpd_sense = &dce_virtual_hpd_sense,