PCI: Add pci_irq_type() to query the allocated interrupt typegrafted

Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX
based on the interrupt type the PCI core selected after
pci_alloc_irq_vectors().

Several drivers already open-code this check against pdev->msix_enabled
and pdev->msi_enabled, or even open code this helper [1].

A common helper avoids the duplication and keeps drivers from accessing
the bitfield directly (see also [2]).

Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1]
Inspired-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2]
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org
[ Add missing pci_irq_type() stub for CONFIG_PCI=n. ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/sound/soc/sof/sof-of-dev.h b/sound/soc/sof/sof-of-dev.h
new file mode 100644
index 000000000..b6cc70595
--- /dev/null
+++ b/sound/soc/sof/sof-of-dev.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright 2021 NXP
+ */
+
+#ifndef __SOUND_SOC_SOF_OF_H
+#define __SOUND_SOC_SOF_OF_H
+
+struct snd_sof_of_mach {
+	const char *compatible;
+	const char *drv_name;
+	const char *fw_filename;
+	const char *sof_tplg_filename;
+};
+
+extern const struct dev_pm_ops sof_of_pm;
+
+int sof_of_probe(struct platform_device *pdev);
+void sof_of_remove(struct platform_device *pdev);
+void sof_of_shutdown(struct platform_device *pdev);
+
+#endif