From 183c00350ccda86781f6695840e6c5f5b22efbd1 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:20 +0300 Subject: drm/i915: Fix runtime PM for LPE audio MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Not calling pm_runtime_enable() means that runtime PM can't be enabled at all via sysfs. So we definitely need to call it from somewhere. Calling it from the driver seems like a bad idea because it would have to be paired with a pm_runtime_disable() at driver unload time, otherwise the core gets upset. Also if there's no LPE audio driver loaded then we couldn't runtime suspend i915 either. So it looks like a better plan is to call it from i915 when we register the platform device. That seems to match how pci generally does things. I cargo culted the pm_runtime_forbid() and pm_runtime_set_active() calls from pci as well. The exposed runtime PM API is massive an thorougly misleading, so I don't actually know if this is how you're supposed to use the API or not. But it seems to work. I can now runtime suspend i915 again with or without the LPE audio driver loaded, and reloading the LPE audio driver also seems to work. Note that powertop won't auto-tune runtime PM for platform devices, which is a little annoying. So I'm not sure that leaving runtime PM in "on" mode by default is the best choice here. But I've left it like that for now at least. Also remove the comment about there not being much benefit from LPE audio runtime PM. Not allowing runtime PM blocks i915 runtime PM, which will also block s0ix, and that could have a measurable impact on power consumption. Cc: stable@vger.kernel.org Cc: Takashi Iwai Cc: Pierre-Louis Bossart Fixes: 0b6b524f3915 ("ALSA: x86: Don't enable runtime PM as default") Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-2-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- sound/x86/intel_hdmi_audio.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'sound/x86') diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index c505b019e09c..bfac6f21ae5e 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1809,10 +1809,6 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) pdata->notify_pending = false; spin_unlock_irq(&pdata->lpe_audio_slock); - /* runtime PM isn't enabled as default, since it won't save much on - * BYT/CHT devices; user who want the runtime PM should adjust the - * power/ontrol and power/autosuspend_delay_ms sysfs entries instead - */ pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_mark_last_busy(&pdev->dev); pm_runtime_set_active(&pdev->dev); -- cgit v1.2.3 From 8d5c30308d7c5a17db96fa5452c0232f633377c2 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:21 +0300 Subject: ALSA: x86: Clear the pdata.notify_lpe_audio pointer before teardown MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clear the notify function pointer in the platform data before we tear down the driver. Otherwise i915 would end up calling a stale function pointer and possibly explode. Cc: stable@vger.kernel.org Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-3-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- sound/x86/intel_hdmi_audio.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sound/x86') diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index bfac6f21ae5e..5b89662493c9 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1665,6 +1665,11 @@ static int __maybe_unused hdmi_lpe_audio_resume(struct device *dev) static void hdmi_lpe_audio_free(struct snd_card *card) { struct snd_intelhad *ctx = card->private_data; + struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data; + + spin_lock_irq(&pdata->lpe_audio_slock); + pdata->notify_audio_lpe = NULL; + spin_unlock_irq(&pdata->lpe_audio_slock); cancel_work_sync(&ctx->hdmi_audio_wq); -- cgit v1.2.3 From d2205595800dbd53eba06318e399a1cba1c0fc67 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:23 +0300 Subject: drm/i915: Remove the unused pending_notify from LPE platform data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The pending_notify flag in the LPE audio platform data is pointless, actually unused. So let's kill it off. v2: Fix typo in patch subject Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-5-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/intel_lpe_audio.c | 2 -- include/drm/intel_lpe_audio.h | 1 - sound/x86/intel_hdmi_audio.c | 1 - 3 files changed, 4 deletions(-) (limited to 'sound/x86') diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index 292fedf30b00..79b9dca985ff 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -361,8 +361,6 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, if (pdata->notify_audio_lpe) pdata->notify_audio_lpe(dev_priv->lpe_audio.platdev); - else - pdata->notify_pending = true; spin_unlock_irqrestore(&pdata->lpe_audio_slock, irq_flags); diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h index e9892b4c3af1..c201d39cdfea 100644 --- a/include/drm/intel_lpe_audio.h +++ b/include/drm/intel_lpe_audio.h @@ -38,7 +38,6 @@ struct intel_hdmi_lpe_audio_eld { }; struct intel_hdmi_lpe_audio_pdata { - bool notify_pending; int tmds_clock_speed; bool hdmi_connected; bool dp_output; diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index 5b89662493c9..cbba4a78afb5 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1811,7 +1811,6 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) spin_lock_irq(&pdata->lpe_audio_slock); pdata->notify_audio_lpe = notify_audio_lpe; - pdata->notify_pending = false; spin_unlock_irq(&pdata->lpe_audio_slock); pm_runtime_use_autosuspend(&pdev->dev); -- cgit v1.2.3 From c98ec5ba6cbbaaa98cb4c00888aecf58f7d470c5 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:24 +0300 Subject: drm/i915: Replace tmds_clock_speed and link_rate with just ls_clock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There's no need to distinguish between the DP link rate and HDMI TMDS clock for the purposes of the LPE audio. Both are actually the same thing more or less, which is the link symbol clock. So let's just call the thing ls_clock and simplify the code. Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-6-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/i915_drv.h | 4 ++-- drivers/gpu/drm/i915/intel_audio.c | 19 ++++--------------- drivers/gpu/drm/i915/intel_lpe_audio.c | 14 ++++++-------- include/drm/intel_lpe_audio.h | 3 +-- sound/x86/intel_hdmi_audio.c | 11 ++++++++--- 5 files changed, 21 insertions(+), 30 deletions(-) (limited to 'sound/x86') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 271a04c59247..38b6bf9f4dc2 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3721,8 +3721,8 @@ 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 pipe, int tmds_clk_speed, - bool dp_output, int link_rate); + void *eld, int port, int pipe, int ls_clock, + bool dp_output); /* intel_i2c.c */ extern int intel_setup_gmbus(struct drm_i915_private *dev_priv); diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index 52c207e81f41..79eeef25321f 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -632,20 +632,9 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder, (int) port, (int) pipe); } - switch (intel_encoder->type) { - case INTEL_OUTPUT_HDMI: - intel_lpe_audio_notify(dev_priv, connector->eld, port, pipe, - crtc_state->port_clock, - false, 0); - break; - case INTEL_OUTPUT_DP: - intel_lpe_audio_notify(dev_priv, connector->eld, port, pipe, - adjusted_mode->crtc_clock, - true, crtc_state->port_clock); - break; - default: - break; - } + intel_lpe_audio_notify(dev_priv, connector->eld, port, pipe, + crtc_state->port_clock, + intel_encoder->type == INTEL_OUTPUT_DP); } /** @@ -680,7 +669,7 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder) (int) port, (int) pipe); } - intel_lpe_audio_notify(dev_priv, NULL, port, pipe, 0, false, 0); + intel_lpe_audio_notify(dev_priv, NULL, port, pipe, 0, false); } /** diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index 79b9dca985ff..5a1a37e963f1 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -309,13 +309,14 @@ void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv) * @eld : ELD data * @pipe: pipe id * @port: port id - * @tmds_clk_speed: tmds clock frequency in Hz + * @ls_clock: Link symbol clock in kHz + * @dp_output: Driving a DP output? * * Notify lpe audio driver of eld change. */ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, - void *eld, int port, int pipe, int tmds_clk_speed, - bool dp_output, int link_rate) + void *eld, int port, int pipe, int ls_clock, + bool dp_output) { unsigned long irq_flags; struct intel_hdmi_lpe_audio_pdata *pdata = NULL; @@ -337,12 +338,8 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, pdata->eld.port_id = port; pdata->eld.pipe_id = pipe; pdata->hdmi_connected = true; - + pdata->ls_clock = ls_clock; pdata->dp_output = dp_output; - if (tmds_clk_speed) - pdata->tmds_clock_speed = tmds_clk_speed; - if (link_rate) - pdata->link_rate = link_rate; /* Unmute the amp for both DP and HDMI */ I915_WRITE(VLV_AUD_PORT_EN_DBG(port), @@ -352,6 +349,7 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, memset(pdata->eld.eld_data, 0, HDMI_MAX_ELD_BYTES); pdata->hdmi_connected = false; + pdata->ls_clock = 0; pdata->dp_output = false; /* Mute the amp for both DP and HDMI */ diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h index c201d39cdfea..8bf804ce8905 100644 --- a/include/drm/intel_lpe_audio.h +++ b/include/drm/intel_lpe_audio.h @@ -38,10 +38,9 @@ struct intel_hdmi_lpe_audio_eld { }; struct intel_hdmi_lpe_audio_pdata { - int tmds_clock_speed; + int ls_clock; bool hdmi_connected; bool dp_output; - int link_rate; struct intel_hdmi_lpe_audio_eld eld; void (*notify_audio_lpe)(struct platform_device *pdev); spinlock_t lpe_audio_slock; diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index cbba4a78afb5..4eaf5de54f61 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1568,7 +1568,7 @@ static void had_audio_wq(struct work_struct *work) struct intel_hdmi_lpe_audio_eld *eld = &pdata->eld; dev_dbg(ctx->dev, "%s: HAD_NOTIFY_ELD : port = %d, tmds = %d\n", - __func__, eld->port_id, pdata->tmds_clock_speed); + __func__, eld->port_id, pdata->ls_clock); switch (eld->pipe_id) { case 0: @@ -1589,8 +1589,13 @@ static void had_audio_wq(struct work_struct *work) memcpy(ctx->eld, eld->eld_data, sizeof(ctx->eld)); ctx->dp_output = pdata->dp_output; - ctx->tmds_clock_speed = pdata->tmds_clock_speed; - ctx->link_rate = pdata->link_rate; + if (ctx->dp_output) { + ctx->tmds_clock_speed = 0; + ctx->link_rate = pdata->ls_clock; + } else { + ctx->tmds_clock_speed = pdata->ls_clock; + ctx->link_rate = 0; + } had_process_hot_plug(ctx); -- cgit v1.2.3 From 265fa2e18f50cc55c0d0517b29bd5cdd5b4f776f Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:25 +0300 Subject: drm/i915: Remove hdmi_connected from LPE audio pdata MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We can determine that the pipe was shut down from pipe<0, so there's no point in duplicating that information as 'hdmi_connected'. v2: Use pipe<0 instead of port<0 as we'll want to do per-port PCM devices later Initialize pipe to -1 to inidicate inactive initial state Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-7-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/intel_lpe_audio.c | 9 +++++---- include/drm/intel_lpe_audio.h | 3 +-- sound/x86/intel_hdmi_audio.c | 8 ++++---- 3 files changed, 10 insertions(+), 10 deletions(-) (limited to 'sound/x86') diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index 5a1a37e963f1..7fd95733eff5 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -111,6 +111,7 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv) pinfo.size_data = sizeof(*pdata); pinfo.dma_mask = DMA_BIT_MASK(32); + pdata->pipe = -1; spin_lock_init(&pdata->lpe_audio_slock); platdev = platform_device_register_full(&pinfo); @@ -332,12 +333,12 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, audio_enable = I915_READ(VLV_AUD_PORT_EN_DBG(port)); + pdata->eld.port_id = port; + if (eld != NULL) { memcpy(pdata->eld.eld_data, eld, HDMI_MAX_ELD_BYTES); - pdata->eld.port_id = port; - pdata->eld.pipe_id = pipe; - pdata->hdmi_connected = true; + pdata->pipe = pipe; pdata->ls_clock = ls_clock; pdata->dp_output = dp_output; @@ -348,7 +349,7 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, } else { memset(pdata->eld.eld_data, 0, HDMI_MAX_ELD_BYTES); - pdata->hdmi_connected = false; + pdata->pipe = -1; pdata->ls_clock = 0; pdata->dp_output = false; diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h index 8bf804ce8905..9a5bdf5ad180 100644 --- a/include/drm/intel_lpe_audio.h +++ b/include/drm/intel_lpe_audio.h @@ -33,13 +33,12 @@ struct platform_device; struct intel_hdmi_lpe_audio_eld { int port_id; - int pipe_id; unsigned char eld_data[HDMI_MAX_ELD_BYTES]; }; struct intel_hdmi_lpe_audio_pdata { + int pipe; int ls_clock; - bool hdmi_connected; bool dp_output; struct intel_hdmi_lpe_audio_eld eld; void (*notify_audio_lpe)(struct platform_device *pdev); diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index 4eaf5de54f61..1a095189db83 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1559,7 +1559,7 @@ static void had_audio_wq(struct work_struct *work) pm_runtime_get_sync(ctx->dev); mutex_lock(&ctx->mutex); - if (!pdata->hdmi_connected) { + if (pdata->pipe < 0) { dev_dbg(ctx->dev, "%s: Event: HAD_NOTIFY_HOT_UNPLUG\n", __func__); memset(ctx->eld, 0, sizeof(ctx->eld)); /* clear the old ELD */ @@ -1568,9 +1568,9 @@ static void had_audio_wq(struct work_struct *work) struct intel_hdmi_lpe_audio_eld *eld = &pdata->eld; dev_dbg(ctx->dev, "%s: HAD_NOTIFY_ELD : port = %d, tmds = %d\n", - __func__, eld->port_id, pdata->ls_clock); + __func__, eld->port_id, pdata->ls_clock); - switch (eld->pipe_id) { + switch (pdata->pipe) { case 0: ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; break; @@ -1582,7 +1582,7 @@ static void had_audio_wq(struct work_struct *work) break; default: dev_dbg(ctx->dev, "Invalid pipe %d\n", - eld->pipe_id); + pdata->pipe); break; } -- cgit v1.2.3 From a8562e4dec9c835e3c3b77e2ebfcef89dff9efb4 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:27 +0300 Subject: drm/i915: Clean up the LPE audio platform data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Split the LPE audio platform data into a port specific chunk and device specific chunk. Eventually we'll have a port specific chunk for each port, but for now we'll stick to just one. We'll also get rid of the intel_hdmi_lpe_audio_eld structure which doesn't seem to have any real reason to exist. v2: Organize per port instead of per pipe Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-9-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/intel_lpe_audio.c | 30 ++++++++++++++---------------- include/drm/intel_lpe_audio.h | 15 ++++++++------- sound/x86/intel_hdmi_audio.c | 19 +++++++++---------- 3 files changed, 31 insertions(+), 33 deletions(-) (limited to 'sound/x86') diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index 4c770d037f23..bdbc235141b5 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -111,7 +111,7 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv) pinfo.size_data = sizeof(*pdata); pinfo.dma_mask = DMA_BIT_MASK(32); - pdata->pipe = -1; + pdata->port.pipe = -1; spin_lock_init(&pdata->lpe_audio_slock); platdev = platform_device_register_full(&pinfo); @@ -320,38 +320,36 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, const void *eld, int ls_clock, bool dp_output) { unsigned long irq_flags; - struct intel_hdmi_lpe_audio_pdata *pdata = NULL; + struct intel_hdmi_lpe_audio_pdata *pdata; + struct intel_hdmi_lpe_audio_port_pdata *ppdata; u32 audio_enable; if (!HAS_LPE_AUDIO(dev_priv)) return; - pdata = dev_get_platdata( - &(dev_priv->lpe_audio.platdev->dev)); + pdata = dev_get_platdata(&dev_priv->lpe_audio.platdev->dev); + ppdata = &pdata->port; spin_lock_irqsave(&pdata->lpe_audio_slock, irq_flags); audio_enable = I915_READ(VLV_AUD_PORT_EN_DBG(port)); - pdata->eld.port_id = port; + ppdata->port = port; if (eld != NULL) { - memcpy(pdata->eld.eld_data, eld, - HDMI_MAX_ELD_BYTES); - pdata->pipe = pipe; - pdata->ls_clock = ls_clock; - pdata->dp_output = dp_output; + memcpy(ppdata->eld, eld, HDMI_MAX_ELD_BYTES); + ppdata->pipe = pipe; + ppdata->ls_clock = ls_clock; + ppdata->dp_output = dp_output; /* Unmute the amp for both DP and HDMI */ I915_WRITE(VLV_AUD_PORT_EN_DBG(port), audio_enable & ~VLV_AMP_MUTE); - } else { - memset(pdata->eld.eld_data, 0, - HDMI_MAX_ELD_BYTES); - pdata->pipe = -1; - pdata->ls_clock = 0; - pdata->dp_output = false; + memset(ppdata->eld, 0, HDMI_MAX_ELD_BYTES); + ppdata->pipe = -1; + ppdata->ls_clock = 0; + ppdata->dp_output = false; /* Mute the amp for both DP and HDMI */ I915_WRITE(VLV_AUD_PORT_EN_DBG(port), diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h index 9a5bdf5ad180..211f1cd61153 100644 --- a/include/drm/intel_lpe_audio.h +++ b/include/drm/intel_lpe_audio.h @@ -31,16 +31,17 @@ struct platform_device; #define HDMI_MAX_ELD_BYTES 128 -struct intel_hdmi_lpe_audio_eld { - int port_id; - unsigned char eld_data[HDMI_MAX_ELD_BYTES]; -}; - -struct intel_hdmi_lpe_audio_pdata { +struct intel_hdmi_lpe_audio_port_pdata { + u8 eld[HDMI_MAX_ELD_BYTES]; + int port; int pipe; int ls_clock; bool dp_output; - struct intel_hdmi_lpe_audio_eld eld; +}; + +struct intel_hdmi_lpe_audio_pdata { + struct intel_hdmi_lpe_audio_port_pdata port; + void (*notify_audio_lpe)(struct platform_device *pdev); spinlock_t lpe_audio_slock; }; diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index 1a095189db83..c2b78621852e 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1556,21 +1556,20 @@ static void had_audio_wq(struct work_struct *work) struct snd_intelhad *ctx = container_of(work, struct snd_intelhad, hdmi_audio_wq); struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data; + struct intel_hdmi_lpe_audio_port_pdata *ppdata = &pdata->port; pm_runtime_get_sync(ctx->dev); mutex_lock(&ctx->mutex); - if (pdata->pipe < 0) { + if (ppdata->pipe < 0) { dev_dbg(ctx->dev, "%s: Event: HAD_NOTIFY_HOT_UNPLUG\n", __func__); memset(ctx->eld, 0, sizeof(ctx->eld)); /* clear the old ELD */ had_process_hot_unplug(ctx); } else { - struct intel_hdmi_lpe_audio_eld *eld = &pdata->eld; - dev_dbg(ctx->dev, "%s: HAD_NOTIFY_ELD : port = %d, tmds = %d\n", - __func__, eld->port_id, pdata->ls_clock); + __func__, ppdata->port, ppdata->ls_clock); - switch (pdata->pipe) { + switch (ppdata->pipe) { case 0: ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; break; @@ -1582,18 +1581,18 @@ static void had_audio_wq(struct work_struct *work) break; default: dev_dbg(ctx->dev, "Invalid pipe %d\n", - pdata->pipe); + ppdata->pipe); break; } - memcpy(ctx->eld, eld->eld_data, sizeof(ctx->eld)); + memcpy(ctx->eld, ppdata->eld, sizeof(ctx->eld)); - ctx->dp_output = pdata->dp_output; + ctx->dp_output = ppdata->dp_output; if (ctx->dp_output) { ctx->tmds_clock_speed = 0; - ctx->link_rate = pdata->ls_clock; + ctx->link_rate = ppdata->ls_clock; } else { - ctx->tmds_clock_speed = pdata->ls_clock; + ctx->tmds_clock_speed = ppdata->ls_clock; ctx->link_rate = 0; } -- cgit v1.2.3 From bb4ac5a0ecaeeef0229c69f6c935be2ee70abfec Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:28 +0300 Subject: ALSA: x86: Prepare LPE audio ctls for multiple PCMs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In preparation for register a PCM device for each pipe adjust link up the ctl elements with the corresponding PCM device. Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-10-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- sound/x86/intel_hdmi_audio.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'sound/x86') diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index c2b78621852e..69e10845633a 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -1609,11 +1609,16 @@ static void had_audio_wq(struct work_struct *work) /* * Jack interface */ -static int had_create_jack(struct snd_intelhad *ctx) +static int had_create_jack(struct snd_intelhad *ctx, + struct snd_pcm *pcm) { + char hdmi_str[32]; int err; - err = snd_jack_new(ctx->card, "HDMI/DP", SND_JACK_AVOUT, &ctx->jack, + snprintf(hdmi_str, sizeof(hdmi_str), + "HDMI/DP,pcm=%d", pcm->device); + + err = snd_jack_new(ctx->card, hdmi_str, SND_JACK_AVOUT, &ctx->jack, true, false); if (err < 0) return err; @@ -1793,7 +1798,17 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) /* create controls */ for (i = 0; i < ARRAY_SIZE(had_controls); i++) { - ret = snd_ctl_add(card, snd_ctl_new1(&had_controls[i], ctx)); + struct snd_kcontrol *kctl; + + kctl = snd_ctl_new1(&had_controls[i], ctx); + if (!kctl) { + ret = -ENOMEM; + goto err; + } + + kctl->id.device = pcm->device; + + ret = snd_ctl_add(card, kctl); if (ret < 0) goto err; } @@ -1805,7 +1820,7 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) if (ret < 0) goto err; - ret = had_create_jack(ctx); + ret = had_create_jack(ctx, pcm); if (ret < 0) goto err; -- cgit v1.2.3 From b4eb0d522fcba0ee819f955fd3279ff4682b8b33 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:29 +0300 Subject: ALSA: x86: Split snd_intelhad into card and PCM specific structures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To allow multiple PCM devices to be registered for the LPE audio card, split the private data into card and PCM specific chunks. For now we'll stick to just one PCM device as before. v2: Rework to do a pcm device per port instead of per pipe Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-11-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- sound/x86/intel_hdmi_audio.c | 227 +++++++++++++++++++++++++------------------ sound/x86/intel_hdmi_audio.h | 15 ++- 2 files changed, 142 insertions(+), 100 deletions(-) (limited to 'sound/x86') diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index 69e10845633a..12fae26e70bb 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -42,6 +42,9 @@ #include #include "intel_hdmi_audio.h" +#define for_each_port(card_ctx, port) \ + for ((port) = 0; (port) < (card_ctx)->num_ports; (port)++) + /*standard module options for ALSA. This module supports only one card*/ static int hdmi_card_index = SNDRV_DEFAULT_IDX1; static char *hdmi_card_id = SNDRV_DEFAULT_STR1; @@ -192,12 +195,12 @@ static void had_substream_put(struct snd_intelhad *intelhaddata) /* Register access functions */ static u32 had_read_register_raw(struct snd_intelhad *ctx, u32 reg) { - return ioread32(ctx->mmio_start + ctx->had_config_offset + reg); + return ioread32(ctx->card_ctx->mmio_start + ctx->had_config_offset + reg); } static void had_write_register_raw(struct snd_intelhad *ctx, u32 reg, u32 val) { - iowrite32(val, ctx->mmio_start + ctx->had_config_offset + reg); + iowrite32(val, ctx->card_ctx->mmio_start + ctx->had_config_offset + reg); } static void had_read_register(struct snd_intelhad *ctx, u32 reg, u32 *val) @@ -1519,22 +1522,27 @@ static const struct snd_kcontrol_new had_controls[] = { */ static irqreturn_t display_pipe_interrupt_handler(int irq, void *dev_id) { - struct snd_intelhad *ctx = dev_id; - u32 audio_stat; + struct snd_intelhad_card *card_ctx = dev_id; + int port; - /* use raw register access to ack IRQs even while disconnected */ - audio_stat = had_read_register_raw(ctx, AUD_HDMI_STATUS); + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; + u32 audio_stat; - if (audio_stat & HDMI_AUDIO_UNDERRUN) { - had_write_register_raw(ctx, AUD_HDMI_STATUS, - HDMI_AUDIO_UNDERRUN); - had_process_buffer_underrun(ctx); - } + /* use raw register access to ack IRQs even while disconnected */ + audio_stat = had_read_register_raw(ctx, AUD_HDMI_STATUS); + + if (audio_stat & HDMI_AUDIO_UNDERRUN) { + had_write_register_raw(ctx, AUD_HDMI_STATUS, + HDMI_AUDIO_UNDERRUN); + had_process_buffer_underrun(ctx); + } - if (audio_stat & HDMI_AUDIO_BUFFER_DONE) { - had_write_register_raw(ctx, AUD_HDMI_STATUS, - HDMI_AUDIO_BUFFER_DONE); - had_process_buffer_done(ctx); + if (audio_stat & HDMI_AUDIO_BUFFER_DONE) { + had_write_register_raw(ctx, AUD_HDMI_STATUS, + HDMI_AUDIO_BUFFER_DONE); + had_process_buffer_done(ctx); + } } return IRQ_HANDLED; @@ -1545,9 +1553,14 @@ static irqreturn_t display_pipe_interrupt_handler(int irq, void *dev_id) */ static void notify_audio_lpe(struct platform_device *pdev) { - struct snd_intelhad *ctx = platform_get_drvdata(pdev); + struct snd_intelhad_card *card_ctx = platform_get_drvdata(pdev); + int port; + + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; - schedule_work(&ctx->hdmi_audio_wq); + schedule_work(&ctx->hdmi_audio_wq); + } } /* the work to handle monitor hot plug/unplug */ @@ -1618,7 +1631,8 @@ static int had_create_jack(struct snd_intelhad *ctx, snprintf(hdmi_str, sizeof(hdmi_str), "HDMI/DP,pcm=%d", pcm->device); - err = snd_jack_new(ctx->card, hdmi_str, SND_JACK_AVOUT, &ctx->jack, + err = snd_jack_new(ctx->card_ctx->card, hdmi_str, + SND_JACK_AVOUT, &ctx->jack, true, false); if (err < 0) return err; @@ -1632,13 +1646,18 @@ static int had_create_jack(struct snd_intelhad *ctx, static int hdmi_lpe_audio_runtime_suspend(struct device *dev) { - struct snd_intelhad *ctx = dev_get_drvdata(dev); - struct snd_pcm_substream *substream; + struct snd_intelhad_card *card_ctx = dev_get_drvdata(dev); + int port; - substream = had_substream_get(ctx); - if (substream) { - snd_pcm_suspend(substream); - had_substream_put(ctx); + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; + struct snd_pcm_substream *substream; + + substream = had_substream_get(ctx); + if (substream) { + snd_pcm_suspend(substream); + had_substream_put(ctx); + } } return 0; @@ -1646,12 +1665,12 @@ static int hdmi_lpe_audio_runtime_suspend(struct device *dev) static int __maybe_unused hdmi_lpe_audio_suspend(struct device *dev) { - struct snd_intelhad *ctx = dev_get_drvdata(dev); + struct snd_intelhad_card *card_ctx = dev_get_drvdata(dev); int err; err = hdmi_lpe_audio_runtime_suspend(dev); if (!err) - snd_power_change_state(ctx->card, SNDRV_CTL_POWER_D3hot); + snd_power_change_state(card_ctx->card, SNDRV_CTL_POWER_D3hot); return err; } @@ -1663,29 +1682,34 @@ static int hdmi_lpe_audio_runtime_resume(struct device *dev) static int __maybe_unused hdmi_lpe_audio_resume(struct device *dev) { - struct snd_intelhad *ctx = dev_get_drvdata(dev); + struct snd_intelhad_card *card_ctx = dev_get_drvdata(dev); hdmi_lpe_audio_runtime_resume(dev); - snd_power_change_state(ctx->card, SNDRV_CTL_POWER_D0); + snd_power_change_state(card_ctx->card, SNDRV_CTL_POWER_D0); return 0; } /* release resources */ static void hdmi_lpe_audio_free(struct snd_card *card) { - struct snd_intelhad *ctx = card->private_data; - struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data; + struct snd_intelhad_card *card_ctx = card->private_data; + struct intel_hdmi_lpe_audio_pdata *pdata = card_ctx->dev->platform_data; + int port; spin_lock_irq(&pdata->lpe_audio_slock); pdata->notify_audio_lpe = NULL; spin_unlock_irq(&pdata->lpe_audio_slock); - cancel_work_sync(&ctx->hdmi_audio_wq); + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; + + cancel_work_sync(&ctx->hdmi_audio_wq); + } - if (ctx->mmio_start) - iounmap(ctx->mmio_start); - if (ctx->irq >= 0) - free_irq(ctx->irq, ctx); + if (card_ctx->mmio_start) + iounmap(card_ctx->mmio_start); + if (card_ctx->irq >= 0) + free_irq(card_ctx->irq, card_ctx); } /* @@ -1697,12 +1721,12 @@ static void hdmi_lpe_audio_free(struct snd_card *card) static int hdmi_lpe_audio_probe(struct platform_device *pdev) { struct snd_card *card; - struct snd_intelhad *ctx; + struct snd_intelhad_card *card_ctx; struct snd_pcm *pcm; struct intel_hdmi_lpe_audio_pdata *pdata; int irq; struct resource *res_mmio; - int i, ret; + int port, ret; pdata = pdev->dev.platform_data; if (!pdata) { @@ -1725,39 +1749,30 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) /* create a card instance with ALSA framework */ ret = snd_card_new(&pdev->dev, hdmi_card_index, hdmi_card_id, - THIS_MODULE, sizeof(*ctx), &card); + THIS_MODULE, sizeof(*card_ctx), &card); if (ret) return ret; - ctx = card->private_data; - spin_lock_init(&ctx->had_spinlock); - mutex_init(&ctx->mutex); - ctx->connected = false; - ctx->dev = &pdev->dev; - ctx->card = card; - ctx->aes_bits = SNDRV_PCM_DEFAULT_CON_SPDIF; + card_ctx = card->private_data; + card_ctx->dev = &pdev->dev; + card_ctx->card = card; strcpy(card->driver, INTEL_HAD); strcpy(card->shortname, "Intel HDMI/DP LPE Audio"); strcpy(card->longname, "Intel HDMI/DP LPE Audio"); - ctx->irq = -1; - ctx->tmds_clock_speed = DIS_SAMPLE_RATE_148_5; - INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq); + card_ctx->irq = -1; card->private_free = hdmi_lpe_audio_free; - /* assume pipe A as default */ - ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; - - platform_set_drvdata(pdev, ctx); + platform_set_drvdata(pdev, card_ctx); dev_dbg(&pdev->dev, "%s: mmio_start = 0x%x, mmio_end = 0x%x\n", __func__, (unsigned int)res_mmio->start, (unsigned int)res_mmio->end); - ctx->mmio_start = ioremap_nocache(res_mmio->start, - (size_t)(resource_size(res_mmio))); - if (!ctx->mmio_start) { + card_ctx->mmio_start = ioremap_nocache(res_mmio->start, + (size_t)(resource_size(res_mmio))); + if (!card_ctx->mmio_start) { dev_err(&pdev->dev, "Could not get ioremap\n"); ret = -EACCES; goto err; @@ -1765,65 +1780,79 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) /* setup interrupt handler */ ret = request_irq(irq, display_pipe_interrupt_handler, 0, - pdev->name, ctx); + pdev->name, card_ctx); if (ret < 0) { dev_err(&pdev->dev, "request_irq failed\n"); goto err; } - ctx->irq = irq; - - ret = snd_pcm_new(card, INTEL_HAD, PCM_INDEX, MAX_PB_STREAMS, - MAX_CAP_STREAMS, &pcm); - if (ret) - goto err; - - /* setup private data which can be retrieved when required */ - pcm->private_data = ctx; - pcm->info_flags = 0; - strncpy(pcm->name, card->shortname, strlen(card->shortname)); - /* setup the ops for playabck */ - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &had_pcm_ops); + card_ctx->irq = irq; /* only 32bit addressable */ dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); - /* allocate dma pages; - * try to allocate 600k buffer as default which is large enough - */ - snd_pcm_lib_preallocate_pages_for_all(pcm, - SNDRV_DMA_TYPE_DEV, NULL, - HAD_DEFAULT_BUFFER, HAD_MAX_BUFFER); + init_channel_allocations(); - /* create controls */ - for (i = 0; i < ARRAY_SIZE(had_controls); i++) { - struct snd_kcontrol *kctl; + card_ctx->num_ports = 1; - kctl = snd_ctl_new1(&had_controls[i], ctx); - if (!kctl) { - ret = -ENOMEM; + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; + int i; + + ctx->card_ctx = card_ctx; + ctx->dev = card_ctx->dev; + + INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq); + + ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; + + ret = snd_pcm_new(card, INTEL_HAD, PCM_INDEX, MAX_PB_STREAMS, + MAX_CAP_STREAMS, &pcm); + if (ret) goto err; + + /* setup private data which can be retrieved when required */ + pcm->private_data = ctx; + pcm->info_flags = 0; + strncpy(pcm->name, card->shortname, strlen(card->shortname)); + /* setup the ops for playabck */ + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &had_pcm_ops); + + /* allocate dma pages; + * try to allocate 600k buffer as default which is large enough + */ + snd_pcm_lib_preallocate_pages_for_all(pcm, + SNDRV_DMA_TYPE_DEV, NULL, + HAD_DEFAULT_BUFFER, HAD_MAX_BUFFER); + + /* create controls */ + for (i = 0; i < ARRAY_SIZE(had_controls); i++) { + struct snd_kcontrol *kctl; + + kctl = snd_ctl_new1(&had_controls[i], ctx); + if (!kctl) { + ret = -ENOMEM; + goto err; + } + + kctl->id.device = pcm->device; + + ret = snd_ctl_add(card, kctl); + if (ret < 0) + goto err; } - kctl->id.device = pcm->device; + /* Register channel map controls */ + ret = had_register_chmap_ctls(ctx, pcm); + if (ret < 0) + goto err; - ret = snd_ctl_add(card, kctl); + ret = had_create_jack(ctx, pcm); if (ret < 0) goto err; } - init_channel_allocations(); - - /* Register channel map controls */ - ret = had_register_chmap_ctls(ctx, pcm); - if (ret < 0) - goto err; - - ret = had_create_jack(ctx, pcm); - if (ret < 0) - goto err; - ret = snd_card_register(card); if (ret) goto err; @@ -1837,7 +1866,11 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) pm_runtime_set_active(&pdev->dev); dev_dbg(&pdev->dev, "%s: handle pending notification\n", __func__); - schedule_work(&ctx->hdmi_audio_wq); + for_each_port(card_ctx, port) { + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; + + schedule_work(&ctx->hdmi_audio_wq); + } return 0; @@ -1853,9 +1886,9 @@ err: */ static int hdmi_lpe_audio_remove(struct platform_device *pdev) { - struct snd_intelhad *ctx = platform_get_drvdata(pdev); + struct snd_intelhad_card *card_ctx = platform_get_drvdata(pdev); - snd_card_free(ctx->card); + snd_card_free(card_ctx->card); return 0; } diff --git a/sound/x86/intel_hdmi_audio.h b/sound/x86/intel_hdmi_audio.h index 2d3e389f76b3..2725964ebc46 100644 --- a/sound/x86/intel_hdmi_audio.h +++ b/sound/x86/intel_hdmi_audio.h @@ -101,7 +101,7 @@ struct pcm_stream_info { * @chmap: holds channel map info */ struct snd_intelhad { - struct snd_card *card; + struct snd_intelhad_card *card_ctx; bool connected; struct pcm_stream_info stream_info; unsigned char eld[HDMI_MAX_ELD_BYTES]; @@ -123,8 +123,6 @@ struct snd_intelhad { unsigned int period_bytes; /* PCM period size in bytes */ /* internal stuff */ - int irq; - void __iomem *mmio_start; unsigned int had_config_offset; union aud_cfg aud_config; /* AUD_CONFIG reg value cache */ struct work_struct hdmi_audio_wq; @@ -133,4 +131,15 @@ struct snd_intelhad { struct snd_jack *jack; }; +struct snd_intelhad_card { + struct snd_card *card; + struct device *dev; + + /* internal stuff */ + int irq; + void __iomem *mmio_start; + int num_ports; + struct snd_intelhad pcm_ctx[3]; +}; + #endif /* _INTEL_HDMI_AUDIO_ */ -- cgit v1.2.3 From 8a2d6ae1f737fd22eaeadd0dc32b85c92f239025 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 27 Apr 2017 19:02:30 +0300 Subject: ALSA: x86: Register multiple PCM devices for the LPE audio card MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Now that everything is in place let's register a PCM device for each port of the display engine. This will make it possible to actually output audio to multiple displays at the same time. And it avoids modesets on unrelated displays from clobbering up the ELD and whatnot for the display currently doing the playback. v2: Add a PCM per port instead of per pipe v3: Fix off by one error with port numbers (Pierre-Louis) Fix .notify_audio_lpe() prototype (Pierre-Louis) Cc: Takashi Iwai Cc: Pierre-Louis Bossart Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-12-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/intel_lpe_audio.c | 19 ++--- include/drm/intel_lpe_audio.h | 6 +- sound/x86/intel_hdmi_audio.c | 126 +++++++++++++++++++-------------- sound/x86/intel_hdmi_audio.h | 7 +- 4 files changed, 92 insertions(+), 66 deletions(-) (limited to 'sound/x86') diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c index bdbc235141b5..3bf65288ffff 100644 --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -111,7 +111,11 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv) pinfo.size_data = sizeof(*pdata); pinfo.dma_mask = DMA_BIT_MASK(32); - pdata->port.pipe = -1; + pdata->num_pipes = INTEL_INFO(dev_priv)->num_pipes; + pdata->num_ports = IS_CHERRYVIEW(dev_priv) ? 3 : 2; /* B,C,D or B,C */ + pdata->port[0].pipe = -1; + pdata->port[1].pipe = -1; + pdata->port[2].pipe = -1; spin_lock_init(&pdata->lpe_audio_slock); platdev = platform_device_register_full(&pinfo); @@ -319,7 +323,7 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, enum pipe pipe, enum port port, const void *eld, int ls_clock, bool dp_output) { - unsigned long irq_flags; + unsigned long irqflags; struct intel_hdmi_lpe_audio_pdata *pdata; struct intel_hdmi_lpe_audio_port_pdata *ppdata; u32 audio_enable; @@ -328,14 +332,12 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, return; pdata = dev_get_platdata(&dev_priv->lpe_audio.platdev->dev); - ppdata = &pdata->port; + ppdata = &pdata->port[port - PORT_B]; - spin_lock_irqsave(&pdata->lpe_audio_slock, irq_flags); + spin_lock_irqsave(&pdata->lpe_audio_slock, irqflags); audio_enable = I915_READ(VLV_AUD_PORT_EN_DBG(port)); - ppdata->port = port; - if (eld != NULL) { memcpy(ppdata->eld, eld, HDMI_MAX_ELD_BYTES); ppdata->pipe = pipe; @@ -357,8 +359,7 @@ void intel_lpe_audio_notify(struct drm_i915_private *dev_priv, } if (pdata->notify_audio_lpe) - pdata->notify_audio_lpe(dev_priv->lpe_audio.platdev); + pdata->notify_audio_lpe(dev_priv->lpe_audio.platdev, port - PORT_B); - spin_unlock_irqrestore(&pdata->lpe_audio_slock, - irq_flags); + spin_unlock_irqrestore(&pdata->lpe_audio_slock, irqflags); } diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h index 211f1cd61153..b6121c8fe539 100644 --- a/include/drm/intel_lpe_audio.h +++ b/include/drm/intel_lpe_audio.h @@ -40,9 +40,11 @@ struct intel_hdmi_lpe_audio_port_pdata { }; struct intel_hdmi_lpe_audio_pdata { - struct intel_hdmi_lpe_audio_port_pdata port; + struct intel_hdmi_lpe_audio_port_pdata port[3]; /* for ports B,C,D */ + int num_ports; + int num_pipes; - void (*notify_audio_lpe)(struct platform_device *pdev); + void (*notify_audio_lpe)(struct platform_device *pdev, int port); /* port: 0==B,1==C,2==D */ spinlock_t lpe_audio_slock; }; diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index 12fae26e70bb..909391d5270c 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -42,6 +42,8 @@ #include #include "intel_hdmi_audio.h" +#define for_each_pipe(card_ctx, pipe) \ + for ((pipe) = 0; (pipe) < (card_ctx)->num_pipes; (pipe)++) #define for_each_port(card_ctx, port) \ for ((port) = 0; (port) < (card_ctx)->num_ports; (port)++) @@ -192,15 +194,30 @@ static void had_substream_put(struct snd_intelhad *intelhaddata) spin_unlock_irqrestore(&intelhaddata->had_spinlock, flags); } +static u32 had_config_offset(int pipe) +{ + switch (pipe) { + default: + case 0: + return AUDIO_HDMI_CONFIG_A; + case 1: + return AUDIO_HDMI_CONFIG_B; + case 2: + return AUDIO_HDMI_CONFIG_C; + } +} + /* Register access functions */ -static u32 had_read_register_raw(struct snd_intelhad *ctx, u32 reg) +static u32 had_read_register_raw(struct snd_intelhad_card *card_ctx, + int pipe, u32 reg) { - return ioread32(ctx->card_ctx->mmio_start + ctx->had_config_offset + reg); + return ioread32(card_ctx->mmio_start + had_config_offset(pipe) + reg); } -static void had_write_register_raw(struct snd_intelhad *ctx, u32 reg, u32 val) +static void had_write_register_raw(struct snd_intelhad_card *card_ctx, + int pipe, u32 reg, u32 val) { - iowrite32(val, ctx->card_ctx->mmio_start + ctx->had_config_offset + reg); + iowrite32(val, card_ctx->mmio_start + had_config_offset(pipe) + reg); } static void had_read_register(struct snd_intelhad *ctx, u32 reg, u32 *val) @@ -208,13 +225,13 @@ static void had_read_register(struct snd_intelhad *ctx, u32 reg, u32 *val) if (!ctx->connected) *val = 0; else - *val = had_read_register_raw(ctx, reg); + *val = had_read_register_raw(ctx->card_ctx, ctx->pipe, reg); } static void had_write_register(struct snd_intelhad *ctx, u32 reg, u32 val) { if (ctx->connected) - had_write_register_raw(ctx, reg, val); + had_write_register_raw(ctx->card_ctx, ctx->pipe, reg, val); } /* @@ -1361,6 +1378,9 @@ static void had_process_hot_plug(struct snd_intelhad *intelhaddata) return; } + /* Disable Audio */ + had_enable_audio(intelhaddata, false); + intelhaddata->connected = true; dev_dbg(intelhaddata->dev, "%s @ %d:DEBUG PLUG/UNPLUG : HAD_DRV_CONNECTED\n", @@ -1523,26 +1543,31 @@ static const struct snd_kcontrol_new had_controls[] = { static irqreturn_t display_pipe_interrupt_handler(int irq, void *dev_id) { struct snd_intelhad_card *card_ctx = dev_id; - int port; + u32 audio_stat[3] = {}; + int pipe, port; + + for_each_pipe(card_ctx, pipe) { + /* use raw register access to ack IRQs even while disconnected */ + audio_stat[pipe] = had_read_register_raw(card_ctx, pipe, + AUD_HDMI_STATUS) & + (HDMI_AUDIO_UNDERRUN | HDMI_AUDIO_BUFFER_DONE); + + if (audio_stat[pipe]) + had_write_register_raw(card_ctx, pipe, + AUD_HDMI_STATUS, audio_stat[pipe]); + } for_each_port(card_ctx, port) { struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; - u32 audio_stat; + int pipe = ctx->pipe; - /* use raw register access to ack IRQs even while disconnected */ - audio_stat = had_read_register_raw(ctx, AUD_HDMI_STATUS); - - if (audio_stat & HDMI_AUDIO_UNDERRUN) { - had_write_register_raw(ctx, AUD_HDMI_STATUS, - HDMI_AUDIO_UNDERRUN); - had_process_buffer_underrun(ctx); - } + if (pipe < 0) + continue; - if (audio_stat & HDMI_AUDIO_BUFFER_DONE) { - had_write_register_raw(ctx, AUD_HDMI_STATUS, - HDMI_AUDIO_BUFFER_DONE); + if (audio_stat[pipe] & HDMI_AUDIO_BUFFER_DONE) had_process_buffer_done(ctx); - } + if (audio_stat[pipe] & HDMI_AUDIO_UNDERRUN) + had_process_buffer_underrun(ctx); } return IRQ_HANDLED; @@ -1551,16 +1576,12 @@ static irqreturn_t display_pipe_interrupt_handler(int irq, void *dev_id) /* * monitor plug/unplug notification from i915; just kick off the work */ -static void notify_audio_lpe(struct platform_device *pdev) +static void notify_audio_lpe(struct platform_device *pdev, int port) { struct snd_intelhad_card *card_ctx = platform_get_drvdata(pdev); - int port; + struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; - for_each_port(card_ctx, port) { - struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; - - schedule_work(&ctx->hdmi_audio_wq); - } + schedule_work(&ctx->hdmi_audio_wq); } /* the work to handle monitor hot plug/unplug */ @@ -1569,34 +1590,27 @@ static void had_audio_wq(struct work_struct *work) struct snd_intelhad *ctx = container_of(work, struct snd_intelhad, hdmi_audio_wq); struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data; - struct intel_hdmi_lpe_audio_port_pdata *ppdata = &pdata->port; + struct intel_hdmi_lpe_audio_port_pdata *ppdata = &pdata->port[ctx->port]; pm_runtime_get_sync(ctx->dev); mutex_lock(&ctx->mutex); if (ppdata->pipe < 0) { - dev_dbg(ctx->dev, "%s: Event: HAD_NOTIFY_HOT_UNPLUG\n", - __func__); + dev_dbg(ctx->dev, "%s: Event: HAD_NOTIFY_HOT_UNPLUG : port = %d\n", + __func__, ctx->port); + memset(ctx->eld, 0, sizeof(ctx->eld)); /* clear the old ELD */ + + ctx->dp_output = false; + ctx->tmds_clock_speed = 0; + ctx->link_rate = 0; + + /* Shut down the stream */ had_process_hot_unplug(ctx); + + ctx->pipe = -1; } else { dev_dbg(ctx->dev, "%s: HAD_NOTIFY_ELD : port = %d, tmds = %d\n", - __func__, ppdata->port, ppdata->ls_clock); - - switch (ppdata->pipe) { - case 0: - ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; - break; - case 1: - ctx->had_config_offset = AUDIO_HDMI_CONFIG_B; - break; - case 2: - ctx->had_config_offset = AUDIO_HDMI_CONFIG_C; - break; - default: - dev_dbg(ctx->dev, "Invalid pipe %d\n", - ppdata->pipe); - break; - } + __func__, ctx->port, ppdata->ls_clock); memcpy(ctx->eld, ppdata->eld, sizeof(ctx->eld)); @@ -1609,11 +1623,18 @@ static void had_audio_wq(struct work_struct *work) ctx->link_rate = 0; } + /* + * Shut down the stream before we change + * the pipe assignment for this pcm device + */ had_process_hot_plug(ctx); - /* Process mode change if stream is active */ + ctx->pipe = ppdata->pipe; + + /* Restart the stream if necessary */ had_process_mode_change(ctx); } + mutex_unlock(&ctx->mutex); pm_runtime_mark_last_busy(ctx->dev); pm_runtime_put_autosuspend(ctx->dev); @@ -1794,7 +1815,8 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) init_channel_allocations(); - card_ctx->num_ports = 1; + card_ctx->num_pipes = pdata->num_pipes; + card_ctx->num_ports = pdata->num_ports; for_each_port(card_ctx, port) { struct snd_intelhad *ctx = &card_ctx->pcm_ctx[port]; @@ -1802,12 +1824,12 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev) ctx->card_ctx = card_ctx; ctx->dev = card_ctx->dev; + ctx->port = port; + ctx->pipe = -1; INIT_WORK(&ctx->hdmi_audio_wq, had_audio_wq); - ctx->had_config_offset = AUDIO_HDMI_CONFIG_A; - - ret = snd_pcm_new(card, INTEL_HAD, PCM_INDEX, MAX_PB_STREAMS, + ret = snd_pcm_new(card, INTEL_HAD, port, MAX_PB_STREAMS, MAX_CAP_STREAMS, &pcm); if (ret) goto err; diff --git a/sound/x86/intel_hdmi_audio.h b/sound/x86/intel_hdmi_audio.h index 2725964ebc46..0d91bb5dbab7 100644 --- a/sound/x86/intel_hdmi_audio.h +++ b/sound/x86/intel_hdmi_audio.h @@ -32,7 +32,6 @@ #include "intel_hdmi_lpe_audio.h" -#define PCM_INDEX 0 #define MAX_PB_STREAMS 1 #define MAX_CAP_STREAMS 0 #define BYTES_PER_WORD 0x4 @@ -112,6 +111,8 @@ struct snd_intelhad { struct snd_pcm_chmap *chmap; int tmds_clock_speed; int link_rate; + int port; /* fixed */ + int pipe; /* can change dynamically */ /* ring buffer (BD) position index */ unsigned int bd_head; @@ -123,7 +124,6 @@ struct snd_intelhad { unsigned int period_bytes; /* PCM period size in bytes */ /* internal stuff */ - unsigned int had_config_offset; union aud_cfg aud_config; /* AUD_CONFIG reg value cache */ struct work_struct hdmi_audio_wq; struct mutex mutex; /* for protecting chmap and eld */ @@ -138,8 +138,9 @@ struct snd_intelhad_card { /* internal stuff */ int irq; void __iomem *mmio_start; + int num_pipes; int num_ports; - struct snd_intelhad pcm_ctx[3]; + struct snd_intelhad pcm_ctx[3]; /* one for each port */ }; #endif /* _INTEL_HDMI_AUDIO_ */ -- cgit v1.2.3