gma500: Fix lid related crash

We now set up the lid timer before we set up the backlight. On some
devices that causes a crash as we do a backlight change before or during
the setup.

As this fixes a crash on boot regression on some setups it ought to go
in ASAP, especially as all the user gets is a blank screen.

Signed-off-by: Alan Cox <[e-mail]>
Tested-by: Mattia Dongili <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/gpu/drm/gma500/psb_device.c

···
 	psb_backlight_device->props.max_brightness = 100;
 	backlight_update_status(psb_backlight_device);
 	dev_priv->backlight_device = psb_backlight_device;
+
+	/* This must occur after the backlight is properly initialised */
+	psb_lid_timer_init(dev_priv);
+
 	return 0;
 }
 
···
 	return 0;
 }
 
-/* Not exactly an erratum more an irritation */
-static void psb_chip_errata(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	psb_lid_timer_init(dev_priv);
-}
-
 static void psb_chip_teardown(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
···
 	.sgx_offset = PSB_SGX_OFFSET,
 	.chip_setup = psb_chip_setup,
 	.chip_teardown = psb_chip_teardown,
-	.errata = psb_chip_errata,
 
 	.crtc_helper = &psb_intel_helper_funcs,
 	.crtc_funcs = &psb_intel_crtc_funcs,