From 46d196ec460b9c45ca225f815c0b05f9de67290d Mon Sep 17 00:00:00 2001 From: Jerome Anand Date: Wed, 25 Jan 2017 04:27:50 +0530 Subject: [PATCH] drm/i915: Add support for audio driver notifications Notifiations like mode change, hot plug and edid to the audio driver are added. This is inturn used by the audio driver for its functionality. A new interface file capturing the notifications needed by the audio driver is added 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_drv.h | 2 ++ drivers/gpu/drm/i915/intel_audio.c | 6 ++++ drivers/gpu/drm/i915/intel_hdmi.c | 1 + drivers/gpu/drm/i915/intel_lpe_audio.c | 49 ++++++++++++++++++++++++++ 4 files changed, 58 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index c55bf144c4e2..3e3102cedc82 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3400,6 +3400,8 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv); int intel_lpe_audio_init(struct drm_i915_private *dev_priv); void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv); void intel_lpe_audio_irq_handler(struct drm_i915_private *dev_priv); +void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, + void *eld, int port, int tmds_clk_speed); /* intel_i2c.c */ extern int intel_setup_gmbus(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index 1e93263b4c87..364f96207c40 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "intel_drv.h" #include @@ -630,6 +631,9 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder, if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, (int) port, (int) pipe); + + intel_lpe_audio_notify(dev_priv, connector->eld, port, + crtc_state->port_clock); } /** @@ -663,6 +667,8 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder) if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify) acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr, (int) port, (int) pipe); + + intel_lpe_audio_notify(dev_priv, NULL, port, 0); } /** diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index fb88e32e25a3..02d50e334ac6 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -36,6 +36,7 @@ #include #include "intel_drv.h" #include +#include #include "i915_drv.h" static struct drm_device *intel_hdmi_to_dev(struct intel_hdmi *intel_hdmi) diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index 7ce1b5b99275..27d94255872d 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -319,3 +319,52 @@ void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv) irq_free_desc(dev_priv->lpe_audio.irq); } + + +/** + * intel_lpe_audio_notify() - notify lpe audio event + * audio driver and i915 + * @dev_priv: the i915 drm device private data + * @eld : ELD data + * @port: port id + * @tmds_clk_speed: tmds clock frequency in Hz + * + * Notify lpe audio driver of eld change. + */ +void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, + void *eld, int port, int tmds_clk_speed) +{ + unsigned long irq_flags; + struct intel_hdmi_lpe_audio_pdata *pdata = NULL; + + if (!HAS_LPE_AUDIO(dev_priv)) + return; + + pdata = dev_get_platdata( + &(dev_priv->lpe_audio.platdev->dev)); + + spin_lock_irqsave(&pdata->lpe_audio_slock, irq_flags); + + if (eld != NULL) { + memcpy(pdata->eld.eld_data, eld, + HDMI_MAX_ELD_BYTES); + pdata->eld.port_id = port; + pdata->hdmi_connected = true; + + if (tmds_clk_speed) + pdata->tmds_clock_speed = tmds_clk_speed; + } else { + memset(pdata->eld.eld_data, 0, + HDMI_MAX_ELD_BYTES); + pdata->hdmi_connected = false; + } + + if (pdata->notify_audio_lpe) + pdata->notify_audio_lpe( + (eld != NULL) ? &pdata->eld : NULL); + else + pdata->notify_pending = true; + + spin_unlock_irqrestore(&pdata->lpe_audio_slock, + irq_flags); +} -- 2.45.2