[PATCH 2/4] misc: pci_endpoint_test: Fetch supported IRQ types in CAPS register

[Niklas Cassel <cassel@kernel.org>]

Fetch supported IRQ types in CAPS register and save them in struct
pci_endpoint_test.

The supported IRQ types will be used in follow-up commit.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
---
 drivers/misc/pci_endpoint_test.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 849d730ba14dd..3c04121d24733 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -66,6 +66,9 @@
 
 #define PCI_ENDPOINT_TEST_CAPS			0x30
 #define CAP_UNALIGNED_ACCESS			BIT(0)
+#define CAP_MSI					BIT(1)
+#define CAP_MSIX				BIT(2)
+#define CAP_INTX				BIT(3)
 
 #define PCI_DEVICE_ID_TI_AM654			0xb00c
 #define PCI_DEVICE_ID_TI_J7200			0xb00f
@@ -112,6 +115,7 @@ struct pci_endpoint_test {
 	struct miscdevice miscdev;
 	enum pci_barno test_reg_bar;
 	size_t alignment;
+	u32 ep_caps;
 	const char *name;
 };
 
@@ -892,13 +896,12 @@ static void pci_endpoint_test_get_capabilities(struct pci_endpoint_test *test)
 {
 	struct pci_dev *pdev = test->pdev;
 	struct device *dev = &pdev->dev;
-	u32 caps;
 
-	caps = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_CAPS);
-	dev_dbg(dev, "PCI_ENDPOINT_TEST_CAPS: %#x\n", caps);
+	test->ep_caps = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_CAPS);
+	dev_dbg(dev, "PCI_ENDPOINT_TEST_CAPS: %#x\n", test->ep_caps);
 
 	/* CAP_UNALIGNED_ACCESS is set if the EP can do unaligned access */
-	if (caps & CAP_UNALIGNED_ACCESS)
+	if (test->ep_caps & CAP_UNALIGNED_ACCESS)
 		test->alignment = 0;
 }
 
-- 
2.48.1