[PATCH v7 12/13] ASoC: SOF: Intel: Move binding to display driver outside of deferred probe

From: Maarten Lankhorst
Date: Mon Oct 09 2023 - 07:55:33 EST


Now that we can use -EPROBE_DEFER, it's no longer required to spin off
the snd_hdac_i915_init into a workqueue.

Use the -EPROBE_DEFER mechanism instead, which must be returned in the
probe function.

The previously added probe_early can be used for this,
and we also use the newly added remove_late for unbinding afterwards.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/intel/hda-common-ops.c | 1 +
sound/soc/sof/intel/hda.c | 18 ++++++------------
sound/soc/sof/intel/hda.h | 1 +
3 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/sound/soc/sof/intel/hda-common-ops.c b/sound/soc/sof/intel/hda-common-ops.c
index 1cc18fb2b75bb..26105d8f1bdc7 100644
--- a/sound/soc/sof/intel/hda-common-ops.c
+++ b/sound/soc/sof/intel/hda-common-ops.c
@@ -19,6 +19,7 @@ struct snd_sof_dsp_ops sof_hda_common_ops = {
.probe_early = hda_dsp_probe_early,
.probe = hda_dsp_probe,
.remove = hda_dsp_remove,
+ .remove_late = hda_dsp_remove_late,

/* Register IO uses direct mmio */

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 2f189473323f3..d4e76c58de13a 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -1168,6 +1168,7 @@ int hda_dsp_probe_early(struct snd_sof_dev *sdev)
return -ENOMEM;
sdev->pdata->hw_pdata = hdev;
hdev->desc = chip;
+ ret = hda_init(sdev);

err:
return ret;
@@ -1177,7 +1178,6 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
{
struct pci_dev *pci = to_pci_dev(sdev->dev);
struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
- struct hdac_bus *bus;
int ret = 0;

hdev->dmic_dev = platform_device_register_data(sdev->dev, "dmic-codec",
@@ -1201,12 +1201,6 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
if (sdev->dspless_mode_selected)
hdev->no_ipc_position = 1;

- /* set up HDA base */
- bus = sof_to_bus(sdev);
- ret = hda_init(sdev);
- if (ret < 0)
- goto hdac_bus_unmap;
-
if (sdev->dspless_mode_selected)
goto skip_dsp_setup;

@@ -1315,8 +1309,6 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
iounmap(sdev->bar[HDA_DSP_BAR]);
hdac_bus_unmap:
platform_device_unregister(hdev->dmic_dev);
- iounmap(bus->remap_addr);
- hda_codec_i915_exit(sdev);

return ret;
}
@@ -1325,7 +1317,6 @@ int hda_dsp_remove(struct snd_sof_dev *sdev)
{
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
const struct sof_intel_dsp_desc *chip = hda->desc;
- struct hdac_bus *bus = sof_to_bus(sdev);
struct pci_dev *pci = to_pci_dev(sdev->dev);
struct nhlt_acpi_table *nhlt = hda->nhlt;

@@ -1376,10 +1367,13 @@ int hda_dsp_remove(struct snd_sof_dev *sdev)
if (!sdev->dspless_mode_selected)
iounmap(sdev->bar[HDA_DSP_BAR]);

- iounmap(bus->remap_addr);
+ return 0;
+}

+int hda_dsp_remove_late(struct snd_sof_dev *sdev)
+{
+ iounmap(sof_to_bus(sdev)->remap_addr);
sof_hda_bus_exit(sdev);
-
hda_codec_i915_exit(sdev);

return 0;
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index e13cdc933ca6b..8e846684279e7 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -576,6 +576,7 @@ struct sof_intel_hda_stream {
int hda_dsp_probe_early(struct snd_sof_dev *sdev);
int hda_dsp_probe(struct snd_sof_dev *sdev);
int hda_dsp_remove(struct snd_sof_dev *sdev);
+int hda_dsp_remove_late(struct snd_sof_dev *sdev);
int hda_dsp_core_power_up(struct snd_sof_dev *sdev, unsigned int core_mask);
int hda_dsp_core_run(struct snd_sof_dev *sdev, unsigned int core_mask);
int hda_dsp_enable_core(struct snd_sof_dev *sdev, unsigned int core_mask);
--
2.39.2