linux-kernel - [PATCH 2/2] ASoC/SoundWire: Intel: lnl: enable interrupts after first power-up/before last power-down

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Message-ID: <20241007121241.30914-3-yung-chuan.liao@linux.intel.com>
Date: Mon,  7 Oct 2024 20:12:41 +0800
From: Bard Liao <yung-chuan.liao@...ux.intel.com>
To: broonie@...nel.org,
	tiwai@...e.de,
	vkoul@...nel.org
Cc: vinod.koul@...aro.org,
	linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	pierre-louis.bossart@...ux.dev,
	bard.liao@...el.com,
	peter.ujfalusi@...ux.intel.com
Subject: [PATCH 2/2] ASoC/SoundWire: Intel: lnl: enable interrupts after first power-up/before last power-down

From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

The HDaudio mlink support makes it more logical to couple interrupt
enabling/disabling with power-up/down sequences.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@...el.com>
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
---
 drivers/soundwire/intel_ace2x.c |  7 +++++++
 sound/soc/sof/intel/hda-dsp.c   |  5 -----
 sound/soc/sof/intel/hda.c       |  2 --
 sound/soc/sof/intel/lnl.c       | 10 ----------
 4 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/soundwire/intel_ace2x.c b/drivers/soundwire/intel_ace2x.c
index fff312c6968d..3084f0ac7159 100644
--- a/drivers/soundwire/intel_ace2x.c
+++ b/drivers/soundwire/intel_ace2x.c
@@ -175,6 +175,9 @@ static int intel_link_power_up(struct sdw_intel *sdw)
 				__func__, ret);
 			goto out;
 		}
+
+		hdac_bus_eml_enable_interrupt_unlocked(sdw->link_res->hbus, true,
+						       AZX_REG_ML_LEPTR_ID_SDW, true);
 	}
 
 	*shim_mask |= BIT(link_id);
@@ -201,6 +204,10 @@ static int intel_link_power_down(struct sdw_intel *sdw)
 
 	*shim_mask &= ~BIT(link_id);
 
+	if (!*shim_mask)
+		hdac_bus_eml_enable_interrupt_unlocked(sdw->link_res->hbus, true,
+						       AZX_REG_ML_LEPTR_ID_SDW, false);
+
 	ret = hdac_bus_eml_sdw_power_down_unlocked(sdw->link_res->hbus, link_id);
 	if (ret < 0) {
 		dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_down failed: %d\n",
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c
index 4c88522d4048..6028a80418bb 100644
--- a/sound/soc/sof/intel/hda-dsp.c
+++ b/sound/soc/sof/intel/hda-dsp.c
@@ -858,7 +858,6 @@ static int hda_suspend(struct snd_sof_dev *sdev, bool runtime_suspend)
 
 static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
 {
-	const struct sof_intel_dsp_desc *chip;
 	int ret;
 
 	/* display codec must be powered before link reset */
@@ -891,10 +890,6 @@ static int hda_resume(struct snd_sof_dev *sdev, bool runtime_resume)
 		hda_dsp_ctrl_ppcap_int_enable(sdev, true);
 	}
 
-	chip = get_chip_info(sdev->pdata);
-	if (chip && chip->hw_ip_version >= SOF_INTEL_ACE_2_0)
-		hda_sdw_int_enable(sdev, true);
-
 cleanup:
 	/* display codec can powered off after controller init */
 	hda_codec_i915_display_power(sdev, false);
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 70fc08c8fc99..e4cb4ffc7270 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -866,8 +866,6 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
 			dev_err(sdev->dev, "could not startup SoundWire links\n");
 			goto disable_pp_cap;
 		}
-
-		hda_sdw_int_enable(sdev, true);
 	}
 
 	init_waitqueue_head(&hdev->waitq);
diff --git a/sound/soc/sof/intel/lnl.c b/sound/soc/sof/intel/lnl.c
index 3d5a1f8b17e5..e3c4b4a0d705 100644
--- a/sound/soc/sof/intel/lnl.c
+++ b/sound/soc/sof/intel/lnl.c
@@ -192,16 +192,8 @@ static bool lnl_dsp_check_sdw_irq(struct snd_sof_dev *sdev)
 	return hdac_bus_eml_check_interrupt(bus, true,  AZX_REG_ML_LEPTR_ID_SDW);
 }
 
-static void lnl_enable_sdw_irq(struct snd_sof_dev *sdev, bool enable)
-{
-	struct hdac_bus *bus = sof_to_bus(sdev);
-
-	hdac_bus_eml_enable_interrupt(bus, true,  AZX_REG_ML_LEPTR_ID_SDW, enable);
-}
-
 static int lnl_dsp_disable_interrupts(struct snd_sof_dev *sdev)
 {
-	lnl_enable_sdw_irq(sdev, false);
 	mtl_disable_ipc_interrupts(sdev);
 	return mtl_enable_interrupts(sdev, false);
 }
@@ -237,7 +229,6 @@ const struct sof_intel_dsp_desc lnl_chip_info = {
 	.ssp_count = MTL_SSP_COUNT,
 	.d0i3_offset = MTL_HDA_VS_D0I3C,
 	.read_sdw_lcount =  hda_sdw_check_lcount_ext,
-	.enable_sdw_irq = lnl_enable_sdw_irq,
 	.check_sdw_irq = lnl_dsp_check_sdw_irq,
 	.check_sdw_wakeen_irq = lnl_sdw_check_wakeen_irq,
 	.sdw_process_wakeen = hda_sdw_process_wakeen_common,
@@ -262,7 +253,6 @@ const struct sof_intel_dsp_desc ptl_chip_info = {
 	.ssp_count = MTL_SSP_COUNT,
 	.d0i3_offset = MTL_HDA_VS_D0I3C,
 	.read_sdw_lcount =  hda_sdw_check_lcount_ext,
-	.enable_sdw_irq = lnl_enable_sdw_irq,
 	.check_sdw_irq = lnl_dsp_check_sdw_irq,
 	.check_sdw_wakeen_irq = lnl_sdw_check_wakeen_irq,
 	.check_ipc_irq = mtl_dsp_check_ipc_irq,
-- 
2.43.0