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drm/i915: Add support for dual-channel LVDS on 8xx.

Message ID 20090808130117.454a2649@neptune.home (mailing list archive)
State Accepted
Headers show

Commit Message

Bruno Prémont Aug. 8, 2009, 11:01 a.m. UTC
drm/i915: Check if BIOS enabled dual-channel LVDS on 8xx, not only on 9xx

Commit 0c2e39525b3b53a97a0202c5f35058147e53977e is not sufficient to
get fd.o bug #20115 fixed.
In addition intel_find_best_PLL() must not only rely on BIOS settings
for i9xx chips but also for i8xx, so drop the IS_I9XX() check.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Hi Eric, Ma Ling,

(drm/i915: Add support for dual-channel LVDS on 8xx.) is not sufficient
for i8xx, below patch is needed too for LVDS to work on my Acer TM66x.

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diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d6fce21..486bdaf 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -666,7 +666,7 @@  intel_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc,
 	intel_clock_t clock;
 	int err = target;
-	if (IS_I9XX(dev) && intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
+	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
 	    (I915_READ(LVDS)) != 0) {
 		 * For LVDS, if the panel is on, just rely on its current