drm/amdgpu: add VCE support for Stoney (v2)

Stoney is VCE 3.x single.

v2: Stoney is single pipe like Fiji

Signed-off-by: Samuel Li <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 #define FIRMWARE_TONGA		"amdgpu/tonga_vce.bin"
 #define FIRMWARE_CARRIZO	"amdgpu/carrizo_vce.bin"
 #define FIRMWARE_FIJI		"amdgpu/fiji_vce.bin"
+#define FIRMWARE_STONEY		"amdgpu/stoney_vce.bin"
 
 #ifdef CONFIG_DRM_AMDGPU_CIK
 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
···
 MODULE_FIRMWARE(FIRMWARE_TONGA);
 MODULE_FIRMWARE(FIRMWARE_CARRIZO);
 MODULE_FIRMWARE(FIRMWARE_FIJI);
+MODULE_FIRMWARE(FIRMWARE_STONEY);
 
 static void amdgpu_vce_idle_work_handler(struct work_struct *work);
 
···
 		break;
 	case CHIP_FIJI:
 		fw_name = FIRMWARE_FIJI;
+		break;
+	case CHIP_STONEY:
+		fw_name = FIRMWARE_STONEY;
 		break;
 
 	default:

drivers/gpu/drm/amd/amdgpu/vce_v3_0.c

···
 	u32 tmp;
 	unsigned ret;
 
-	/* Fiji is single pipe */
-	if (adev->asic_type == CHIP_FIJI) {
+	/* Fiji, Stoney are single pipe */
+	if ((adev->asic_type == CHIP_FIJI) ||
+	    (adev->asic_type == CHIP_STONEY)){
 		ret = AMDGPU_VCE_HARVEST_VCE1;
 		return ret;
 	}