drm/amdgpu: remove asymmetrical irq disabling in vcn 4.0.5 suspend

There is no irq enabled in vcn 4.0.5 resume, causing wrong amdgpu_irq_src status.
Beside, current set function callbacks are empty with no real effect.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Saleemkhan Jamadar <saleemkhan.jamadar@amd.com>
Reviewed-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: yifancom

drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c

@@ -2017,22 +2017,6 @@ static int vcn_v4_0_set_powergating_state(void *handle, enum amd_powergating_sta
 	return ret;
 }
 
-/**
- * vcn_v4_0_set_interrupt_state - set VCN block interrupt state
- *
- * @adev: amdgpu_device pointer
- * @source: interrupt sources
- * @type: interrupt types
- * @state: interrupt states
- *
- * Set VCN block interrupt state
- */
-static int vcn_v4_0_set_interrupt_state(struct amdgpu_device *adev, struct amdgpu_irq_src *source,
-      unsigned type, enum amdgpu_interrupt_state state)
-{
-	return 0;
-}
-
 /**
  * vcn_v4_0_set_ras_interrupt_state - set VCN block RAS interrupt state
  *
@@ -2097,7 +2081,6 @@ static int vcn_v4_0_process_interrupt(struct amdgpu_device *adev, struct amdgpu_
 }
 
 static const struct amdgpu_irq_src_funcs vcn_v4_0_irq_funcs = {
-	.set = vcn_v4_0_set_interrupt_state,
 	.process = vcn_v4_0_process_interrupt,
 };
 

drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c

@@ -269,8 +269,6 @@ static int vcn_v4_0_5_hw_fini(void *handle)
 				vcn_v4_0_5_set_powergating_state(adev, AMD_PG_STATE_GATE);
 			}
 		}
-
-		amdgpu_irq_put(adev, &adev->vcn.inst[i].irq, 0);
 	}
 
 	return 0;
@@ -1668,22 +1666,6 @@ static int vcn_v4_0_5_set_powergating_state(void *handle, enum amd_powergating_s
 	return ret;
 }
 
-/**
- * vcn_v4_0_5_set_interrupt_state - set VCN block interrupt state
- *
- * @adev: amdgpu_device pointer
- * @source: interrupt sources
- * @type: interrupt types
- * @state: interrupt states
- *
- * Set VCN block interrupt state
- */
-static int vcn_v4_0_5_set_interrupt_state(struct amdgpu_device *adev, struct amdgpu_irq_src *source,
-		unsigned type, enum amdgpu_interrupt_state state)
-{
-	return 0;
-}
-
 /**
  * vcn_v4_0_5_process_interrupt - process VCN block interrupt
  *
@@ -1726,7 +1708,6 @@ static int vcn_v4_0_5_process_interrupt(struct amdgpu_device *adev, struct amdgp
 }
 
 static const struct amdgpu_irq_src_funcs vcn_v4_0_5_irq_funcs = {
-	.set = vcn_v4_0_5_set_interrupt_state,
 	.process = vcn_v4_0_5_process_interrupt,
 };