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From: Adrian Hunter <adrian.hunter@intel.com>
To: alexandre.belloni@bootlin.com
Cc: Frank.Li@nxp.com, linux-i3c@lists.infradead.org
Subject: [PATCH V2 06/10] i3c: mipi-i3c-hci-pci: Enable MSI support
Date: Thu, 11 Dec 2025 15:48:05 +0200	[thread overview]
Message-ID: <20251211134809.75872-7-adrian.hunter@intel.com> (raw)
In-Reply-To: <20251211134809.75872-1-adrian.hunter@intel.com>

Use pci_alloc_irq_vectors() to support all IRQ types.  Do not call
pci_free_irq_vectors() because it is unnecessary when the device is
managed due to the use of pcim_enable_device().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---


Changes in V2:
	New patch split from "i3c: mipi-i3c-hci-pci: Add support for
	Multi-Bus Instances"


 drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
index 8ade911e3835..0fd3587671e1 100644
--- a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
+++ b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
@@ -203,6 +203,10 @@ static int mipi_i3c_hci_pci_probe(struct pci_dev *pci,
 
 	pci_set_master(pci);
 
+	ret = pci_alloc_irq_vectors(pci, 1, 1, PCI_IRQ_ALL_TYPES);
+	if (ret < 0)
+		return ret;
+
 	memset(&res, 0, sizeof(res));
 
 	res[0].flags = IORESOURCE_MEM;
@@ -210,8 +214,8 @@ static int mipi_i3c_hci_pci_probe(struct pci_dev *pci,
 	res[0].end = pci_resource_end(pci, 0);
 
 	res[1].flags = IORESOURCE_IRQ;
-	res[1].start = pci->irq;
-	res[1].end = pci->irq;
+	res[1].start = pci_irq_vector(hci->pci, 0);
+	res[1].end = res[1].start;
 
 	dev_id = ida_alloc(&mipi_i3c_hci_pci_ida, GFP_KERNEL);
 	if (dev_id < 0)
-- 
2.51.0


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  parent reply	other threads:[~2025-12-11 13:48 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-11 13:47 [PATCH V2 00/10] i3c: mipi-i3c-hci-pci: Define Multi-Bus Instances for Intel controllers Adrian Hunter
2025-12-11 13:48 ` [PATCH V2 01/10] i3c: mipi-i3c-hci: Remove duplicate blank lines Adrian Hunter
2025-12-11 13:48 ` [PATCH V2 02/10] i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0 Adrian Hunter
2025-12-11 13:48 ` [PATCH V2 03/10] i3c: mipi-i3c-hci: Quieten initialization messages Adrian Hunter
2025-12-11 13:48 ` [PATCH V2 04/10] i3c: mipi-i3c-hci: Allow for Multi-Bus Instances Adrian Hunter
2025-12-11 13:48 ` [PATCH V2 05/10] i3c: mipi-i3c-hci-pci: Do not repeatedly check for NULL driver_data Adrian Hunter
2025-12-11 15:34   ` Frank Li
2025-12-11 13:48 ` Adrian Hunter [this message]
2025-12-11 15:40   ` [PATCH V2 06/10] i3c: mipi-i3c-hci-pci: Enable MSI support Frank Li
2025-12-11 16:19     ` Adrian Hunter
2025-12-12 17:38       ` Frank Li
2025-12-15 17:26         ` Adrian Hunter
2025-12-15 17:44           ` Frank Li
2025-12-15 18:19             ` Adrian Hunter
2025-12-15 19:17               ` Frank Li
2025-12-11 13:48 ` [PATCH V2 07/10] i3c: mipi-i3c-hci-pci: Use parent MMIO mapping Adrian Hunter
2025-12-11 16:00   ` Frank Li
2025-12-11 13:48 ` [PATCH V2 08/10] i3c: mipi-i3c-hci-pci: Convert to MFD driver Adrian Hunter
2025-12-11 16:18   ` Frank Li
2025-12-11 13:48 ` [PATCH V2 09/10] i3c: mipi-i3c-hci-pci: Add support for Multi-Bus Instances Adrian Hunter
2025-12-11 16:44   ` Frank Li
2025-12-12 14:08     ` Adrian Hunter
2025-12-12 17:46       ` Frank Li
2025-12-15 17:37         ` Adrian Hunter
2025-12-15 17:51           ` Frank Li
2025-12-11 13:48 ` [PATCH V2 10/10] i3c: mipi-i3c-hci-pci: Define Multi-Bus Instances for Intel controllers Adrian Hunter
2025-12-11 16:47   ` Frank Li

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