drm/i915: fix oops on single crtc devices.

(regression fix since fbdev/kms rework).

My fb rework didn't remember about the 84/65s.

Reported-by: Ondrej Zary <linux@rainbow-software.org>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9ed8ecd..2765831 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -278,6 +278,7 @@ typedef struct drm_i915_private {
        struct mem_block *agp_heap;
        unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
        int vblank_pipe;
+       int num_pipe;
 
        /* For hangcheck timer */
 #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 04e1bb4..2861da3 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5470,7 +5470,6 @@ static void intel_init_display(struct drm_device *dev)
 void intel_modeset_init(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
-       int num_pipe;
        int i;
 
        drm_mode_config_init(dev);
@@ -5500,13 +5499,13 @@ void intel_modeset_init(struct drm_device *dev)
                dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0);
 
        if (IS_MOBILE(dev) || IS_I9XX(dev))
-               num_pipe = 2;
+               dev_priv->num_pipe = 2;
        else
-               num_pipe = 1;
+               dev_priv->num_pipe = 1;
        DRM_DEBUG_KMS("%d display pipe%s available.\n",
-                 num_pipe, num_pipe > 1 ? "s" : "");
+                     dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : "");
 
-       for (i = 0; i < num_pipe; i++) {
+       for (i = 0; i < dev_priv->num_pipe; i++) {
                intel_crtc_init(dev, i);
        }
 

diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index f8c76e6..dfbb0c6 100644 (file)
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -253,7 +253,7 @@ int intel_fbdev_init(struct drm_device *dev)
        dev_priv->fbdev = ifbdev;
        ifbdev->helper.funcs = &intel_fb_helper_funcs;
 
-       drm_fb_helper_init(dev, &ifbdev->helper, 2,
+       drm_fb_helper_init(dev, &ifbdev->helper, dev_priv->num_pipe,
                           INTELFB_CONN_LIMIT);
 
        drm_fb_helper_single_add_all_connectors(&ifbdev->helper);