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-rw-r--r--drivers/gpu/drm/i915/intel_display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index db1e0a4..9db009c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7974,7 +7974,7 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
else
i9xx_clock(refclk, &clock);
} else {
- u32 lvds = I915_READ(LVDS);
+ u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS);
bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN);
if (is_lvds) {
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