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From f89d783d68dcc6b2ce4fe3bda972ae0f84df0dca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= <amadeuszx.slawinski@linux.intel.com>
Date: Fri, 13 Jan 2023 20:03:08 +0100
Subject: [PATCH] ASoC: Intel: avs: Implement PCI shutdown
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Git-commit: f89d783d68dcc6b2ce4fe3bda972ae0f84df0dca
Patch-mainline: v6.2-rc7
References: git-fixes

On shutdown reference to i915 driver needs to be released to not spam
logs with unnecessary warnings. While at it do some additional cleanup
to make sure DSP is powered down and interrupts from device are
disabled.

Fixes: 1affc44ea5dd ("ASoC: Intel: avs: PCI driver implementation")
Reported-by: Kornel Dulęba <korneld@google.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20230113190310.1451693-2-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/intel/avs/core.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/sound/soc/intel/avs/core.c b/sound/soc/intel/avs/core.c
index 2ca24273c491..637501850728 100644
--- a/sound/soc/intel/avs/core.c
+++ b/sound/soc/intel/avs/core.c
@@ -481,6 +481,29 @@ static int avs_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 	return ret;
 }
 
+static void avs_pci_shutdown(struct pci_dev *pci)
+{
+	struct hdac_bus *bus = pci_get_drvdata(pci);
+	struct avs_dev *adev = hdac_to_avs(bus);
+
+	cancel_work_sync(&adev->probe_work);
+	avs_ipc_block(adev->ipc);
+
+	snd_hdac_stop_streams(bus);
+	avs_dsp_op(adev, int_control, false);
+	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
+	snd_hdac_ext_bus_link_power_down_all(bus);
+
+	snd_hdac_bus_stop_chip(bus);
+	snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false);
+
+	if (avs_platattr_test(adev, CLDMA))
+		pci_free_irq(pci, 0, &code_loader);
+	pci_free_irq(pci, 0, adev);
+	pci_free_irq(pci, 0, bus);
+	pci_free_irq_vectors(pci);
+}
+
 static void avs_pci_remove(struct pci_dev *pci)
 {
 	struct hdac_device *hdev, *save;
@@ -739,6 +762,7 @@ static struct pci_driver avs_pci_driver = {
 	.id_table = avs_ids,
 	.probe = avs_pci_probe,
 	.remove = avs_pci_remove,
+	.shutdown = avs_pci_shutdown,
 	.driver = {
 		.pm = &avs_dev_pm,
 	},
-- 
2.35.3