From 0fb58223967fdf5acc2bdbfe50347841843131bc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 10 Jan 2014 14:06:46 +0200 Subject: [PATCH] drm/i915: 830M doesn't have an LVDS port MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There's no LVDS port on 830M so don't go reading the LVDS control register. Signed-off-by: Ville Syrjälä Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index db1e0a4eb359..9db009c55c88 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) {