ASoC: SOF: disallow building without CONFIG_PCI again

Compile-testing without PCI just causes warnings:

sound/soc/sof/sof-pci-dev.c:330:13: error: 'sof_pci_remove' defined but not used [-Werror=unused-function]
 static void sof_pci_remove(struct pci_dev *pci)
             ^~~~~~~~~~~~~~
sound/soc/sof/sof-pci-dev.c:230:12: error: 'sof_pci_probe' defined but not used [-Werror=unused-function]
 static int sof_pci_probe(struct pci_dev *pci,
            ^~~~~~~~~~~~~

I tried to fix this in a way that would still allow compile
tests, but it got too ugly, so this just reverts the patch
that allowed it in the first place.

Most architectures do allow enabling PCI, so the value of the
COMPILE_TEST alternative was not very high to start with.

Fixes: e13ef82a ("ASoC: SOF: add COMPILE_TEST for PCI options")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/Kconfig

@@ -10,7 +10,7 @@ if SND_SOC_SOF_TOPLEVEL
 
 config SND_SOC_SOF_PCI
 	tristate "SOF PCI enumeration support"
-	depends on PCI || COMPILE_TEST
+	depends on PCI
 	select SND_SOC_SOF
 	select SND_SOC_ACPI if ACPI
 	select SND_SOC_SOF_OPTIONS

sound/soc/sof/intel/hda.c

@@ -525,9 +525,7 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
 	 * TODO: support interrupt mode selection with kernel parameter
 	 *       support msi multiple vectors
 	 */
-#if IS_ENABLED(CONFIG_PCI)
 	ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_MSI);
-#endif
 	if (ret < 0) {
 		dev_info(sdev->dev, "use legacy interrupt mode\n");
 		/*
@@ -539,9 +537,7 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
 		sdev->msi_enabled = 0;
 	} else {
 		dev_info(sdev->dev, "use msi interrupt mode\n");
-#if IS_ENABLED(CONFIG_PCI)
 		hdev->irq = pci_irq_vector(pci, 0);
-#endif
 		/* ipc irq number is the same of hda irq */
 		sdev->ipc_irq = hdev->irq;
 		sdev->msi_enabled = 1;
@@ -598,10 +594,8 @@ int hda_dsp_probe(struct snd_sof_dev *sdev)
 free_hda_irq:
 	free_irq(hdev->irq, bus);
 free_irq_vector:
-#if IS_ENABLED(CONFIG_PCI)
 	if (sdev->msi_enabled)
 		pci_free_irq_vectors(pci);
-#endif
 free_streams:
 	hda_dsp_stream_free(sdev);
 /* dsp_unmap: not currently used */
@@ -616,6 +610,7 @@ int hda_dsp_remove(struct snd_sof_dev *sdev)
 {
 	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
 	struct hdac_bus *bus = sof_to_bus(sdev);
+	struct pci_dev *pci = to_pci_dev(sdev->dev);
 	const struct sof_intel_dsp_desc *chip = hda->desc;
 
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
@@ -644,12 +639,8 @@ int hda_dsp_remove(struct snd_sof_dev *sdev)
 
 	free_irq(sdev->ipc_irq, sdev);
 	free_irq(hda->irq, bus);
-#if IS_ENABLED(CONFIG_PCI)
-	if (sdev->msi_enabled) {
-		struct pci_dev *pci = to_pci_dev(sdev->dev);
+	if (sdev->msi_enabled)
 		pci_free_irq_vectors(pci);
-	}
-#endif
 
 	hda_dsp_stream_free(sdev);
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)

sound/soc/sof/sof-pci-dev.c

@@ -251,11 +251,9 @@ static int sof_pci_probe(struct pci_dev *pci,
 	if (!sof_pdata)
 		return -ENOMEM;
 
-#if IS_ENABLED(CONFIG_PCI)
 	ret = pcim_enable_device(pci);
 	if (ret < 0)
 		return ret;
-#endif
 
 	ret = pci_request_regions(pci, "Audio DSP");
 	if (ret < 0)
@@ -388,7 +386,6 @@ static const struct pci_device_id sof_pci_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, sof_pci_ids);
 
-#if IS_ENABLED(CONFIG_PCI)
 /* pci_driver definition */
 static struct pci_driver snd_sof_pci_driver = {
 	.name = "sof-audio-pci",
@@ -400,6 +397,5 @@ static struct pci_driver snd_sof_pci_driver = {
 	},
 };
 module_pci_driver(snd_sof_pci_driver);
-#endif
 
 MODULE_LICENSE("Dual BSD/GPL");