From 34a6c70f099ef33e04e7436ee962293beead7b90 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 4 Jul 2014 13:38:35 -0300 Subject: [PATCH] drm/i915: check the power domains in intel_lvds_get_hw_state() Just like we do for the other encoders. This should fix some WARNs when running pm_rpm on SNB. Testcase: igt/pm_rpm Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463 Signed-off-by: Paulo Zanoni Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_lvds.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 23126023aeba..cba04ddc8b01 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -71,8 +71,13 @@ static bool intel_lvds_get_hw_state(struct intel_encoder *encoder, struct drm_device *dev = encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base); + enum intel_display_power_domain power_domain; u32 tmp; + power_domain = intel_display_port_power_domain(encoder); + if (!intel_display_power_enabled(dev_priv, power_domain)) + return false; + tmp = I915_READ(lvds_encoder->reg); if (!(tmp & LVDS_PORT_EN)) -- 2.34.1