drm/amdgpu: fix to clear ASIC INIT COMPLETE bit on resuming phase

ASIC_INIT_COMPLETE bit must be cleared during S3 resuming phase,
because VBIOS will check the bit to decide if execute ASIC_Init
posting via kernel driver.

Signed-off-by: Huang Rui <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 {
 	int i;
 
+	/*
+	 * VBIOS will check ASIC_INIT_COMPLETE bit to decide if
+	 * execute ASIC_Init posting via driver
+	 */
+	adev->bios_scratch[7] &= ~ATOM_S7_ASIC_INIT_COMPLETE_MASK;
+
 	for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
 		WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
 }

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

···
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "atom.h"
+#include "atombios.h"
 
 #define get_index_into_master_table(master_table, table_name) (offsetof(struct master_table, table_name) / sizeof(uint16_t))
 
···
 void amdgpu_atomfirmware_scratch_regs_restore(struct amdgpu_device *adev)
 {
 	int i;
+
+	/*
+	 * VBIOS will check ASIC_INIT_COMPLETE bit to decide if
+	 * execute ASIC_Init posting via driver
+	 */
+	adev->bios_scratch[7] &= ~ATOM_S7_ASIC_INIT_COMPLETE_MASK;
 
 	for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
 		WREG32(adev->bios_scratch_reg_offset + i, adev->bios_scratch[i]);