diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_gmbus.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_gmbus.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c index ceb1bf8a8c3c..3b8b84177085 100644 --- a/drivers/gpu/drm/i915/display/intel_gmbus.c +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c @@ -334,6 +334,15 @@ intel_gpio_setup(struct intel_gmbus *bus, unsigned int pin) algo->data = bus; } +static bool has_gmbus_irq(struct drm_i915_private *i915) +{ + /* + * encoder->shutdown() may want to use GMBUS + * after irqs have already been disabled. + */ + return HAS_GMBUS_IRQ(i915) && intel_irqs_enabled(i915); +} + static int gmbus_wait(struct drm_i915_private *dev_priv, u32 status, u32 irq_en) { DEFINE_WAIT(wait); @@ -344,7 +353,7 @@ static int gmbus_wait(struct drm_i915_private *dev_priv, u32 status, u32 irq_en) * we also need to check for NAKs besides the hw ready/idle signal, we * need to wake up periodically and check that ourselves. */ - if (!HAS_GMBUS_IRQ(dev_priv)) + if (!has_gmbus_irq(dev_priv)) irq_en = 0; add_wait_queue(&dev_priv->gmbus_wait_queue, &wait); @@ -375,7 +384,7 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv) /* Important: The hw handles only the first bit, so set only one! */ irq_enable = 0; - if (HAS_GMBUS_IRQ(dev_priv)) + if (has_gmbus_irq(dev_priv)) irq_enable = GMBUS_IDLE_EN; add_wait_queue(&dev_priv->gmbus_wait_queue, &wait); |