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, 38 insertions, 0 deletions

diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile
new file mode 100644
index 000000000..e80a2c2cf
--- /dev/null
+++ b/drivers/soundwire/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for soundwire core
+#
+
+#Bus Objs
+soundwire-bus-y := bus_type.o bus.o master.o slave.o mipi_disco.o stream.o  \
+			sysfs_slave.o sysfs_slave_dpn.o
+obj-$(CONFIG_SOUNDWIRE) += soundwire-bus.o
+
+soundwire-generic-allocation-objs := generic_bandwidth_allocation.o
+obj-$(CONFIG_SOUNDWIRE_GENERIC_ALLOCATION) += soundwire-generic-allocation.o
+
+ifdef CONFIG_DEBUG_FS
+soundwire-bus-y += debugfs.o
+endif
+
+ifdef CONFIG_IRQ_DOMAIN
+soundwire-bus-y += irq.o
+endif
+
+#AMD driver
+soundwire-amd-y := amd_init.o amd_manager.o
+obj-$(CONFIG_SOUNDWIRE_AMD) += soundwire-amd.o
+
+#Cadence Objs
+soundwire-cadence-y := cadence_master.o
+obj-$(CONFIG_SOUNDWIRE_CADENCE) += soundwire-cadence.o
+
+#Intel driver
+soundwire-intel-y :=	intel.o intel_ace2x.o intel_ace2x_debugfs.o \
+			intel_auxdevice.o intel_init.o dmi-quirks.o \
+			intel_bus_common.o
+obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o
+
+#Qualcomm driver
+soundwire-qcom-y :=	qcom.o
+obj-$(CONFIG_SOUNDWIRE_QCOM) += soundwire-qcom.o