From eef57324d926f0d8c7a40069e7d26e0cb0651b47 Mon Sep 17 00:00:00 2001 From: Jerome Anand Date: Wed, 25 Jan 2017 04:27:49 +0530 Subject: drm/i915: setup bridge for HDMI LPE audio driver Enable support for HDMI LPE audio mode on Baytrail and Cherrytrail when HDaudio controller is not detected Setup minimum required resources during i915_driver_load: 1. Create a platform device to share MMIO/IRQ resources 2. Make the platform device child of i915 device for runtime PM. 3. Create IRQ chip to forward HDMI LPE audio irqs. HDMI LPE audio driver (a standalone sound driver) probes the LPE audio device and creates a new sound card. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Jerome Anand Acked-by: Jani Nikula Signed-off-by: Takashi Iwai --- drivers/gpu/drm/i915/i915_irq.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_irq.c') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 07ca71cabb2b..f0880afbb878 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1893,6 +1893,10 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg) * signalled in iir */ valleyview_pipestat_irq_ack(dev_priv, iir, pipe_stats); + if (iir & (I915_LPE_PIPE_A_INTERRUPT | + I915_LPE_PIPE_B_INTERRUPT)) + intel_lpe_audio_irq_handler(dev_priv); + /* * VLV_IIR is single buffered, and reflects the level * from PIPESTAT/PORT_HOTPLUG_STAT, hence clear it last. @@ -1973,6 +1977,11 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg) * signalled in iir */ valleyview_pipestat_irq_ack(dev_priv, iir, pipe_stats); + if (iir & (I915_LPE_PIPE_A_INTERRUPT | + I915_LPE_PIPE_B_INTERRUPT | + I915_LPE_PIPE_C_INTERRUPT)) + intel_lpe_audio_irq_handler(dev_priv); + /* * VLV_IIR is single buffered, and reflects the level * from PIPESTAT/PORT_HOTPLUG_STAT, hence clear it last. @@ -2914,6 +2923,7 @@ static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv) u32 pipestat_mask; u32 enable_mask; enum pipe pipe; + u32 val; pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV | PIPE_CRC_DONE_INTERRUPT_STATUS; @@ -2930,6 +2940,12 @@ static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv) WARN_ON(dev_priv->irq_mask != ~0); + val = (I915_LPE_PIPE_A_INTERRUPT | + I915_LPE_PIPE_B_INTERRUPT | + I915_LPE_PIPE_C_INTERRUPT); + + enable_mask |= val; + dev_priv->irq_mask = ~enable_mask; GEN5_IRQ_INIT(VLV_, dev_priv->irq_mask, enable_mask); -- cgit v1.2.3-70-g09d2