drm/i915: Drop checks for initialization

KMS always intializes, this was only a valid check when userspace
was still in control of the kernel driver.

v2: Comment that we outright reject all dri1/ums params.
Acked-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_dma.c

@@ -58,17 +58,11 @@ static int i915_getparam(struct drm_device *dev, void *data,
 	drm_i915_getparam_t *param = data;
 	int value;
 
-	if (!dev_priv) {
-		DRM_ERROR("called with no initialization\n");
-		return -EINVAL;
-	}
-
 	switch (param->param) {
 	case I915_PARAM_IRQ_ACTIVE:
-		return -ENODEV;
 	case I915_PARAM_ALLOW_BATCHBUFFER:
-		return -ENODEV;
 	case I915_PARAM_LAST_DISPATCH:
+		/* Reject all old ums/dri params. */
 		return -ENODEV;
 	case I915_PARAM_CHIPSET_ID:
 		value = dev->pdev->device;
@@ -168,15 +162,11 @@ static int i915_setparam(struct drm_device *dev, void *data,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	drm_i915_setparam_t *param = data;
 
-	if (!dev_priv) {
-		DRM_ERROR("called with no initialization\n");
-		return -EINVAL;
-	}
-
 	switch (param->param) {
 	case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
 	case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
 	case I915_SETPARAM_ALLOW_BATCHBUFFER:
+		/* Reject all old ums/dri params. */
 		return -ENODEV;
 
 	case I915_SETPARAM_NUM_USED_FENCES: