linux-kernel - [PATCH 4/5] scsi: ufs: tc-dwc-pci: Allow for MSI interrupt type

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Message-Id: <9b5c2d47997629c55ac14ce594771e9e8f254c74.1587727756.git.Jose.Abreu@synopsys.com>
Date:   Fri, 24 Apr 2020 13:36:59 +0200
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     linux-scsi@...r.kernel.org
Cc:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Joao Lima <Joao.Lima@...opsys.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] scsi: ufs: tc-dwc-pci: Allow for MSI interrupt type

Newer Test Chips boards have MSI support. It does no harm to try to
request it as the function will fallback to legacy interrupts if MSI is
not supported.

Signed-off-by: Jose Abreu <Jose.Abreu@...opsys.com>

---
Cc: Joao Lima <Joao.Lima@...opsys.com>
Cc: Jose Abreu <Jose.Abreu@...opsys.com>
Cc: Alim Akhtar <alim.akhtar@...sung.com>
Cc: Avri Altman <avri.altman@....com>
Cc: "James E.J. Bottomley" <jejb@...ux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/scsi/ufs/tc-dwc-pci.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/tc-dwc-pci.c b/drivers/scsi/ufs/tc-dwc-pci.c
index 74a2d80d32bd..e0a880cbbe68 100644
--- a/drivers/scsi/ufs/tc-dwc-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-pci.c
@@ -136,9 +136,15 @@ tc_dwc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return -ENOENT;
 	}
 
+	err = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
+	if (err < 0) {
+		dev_err(&pdev->dev, "Allocation failed\n");
+		return err;
+	}
+
 	hba->vops = &data->ops;
 
-	err = ufshcd_init(hba, mmio_base, pdev->irq);
+	err = ufshcd_init(hba, mmio_base, pci_irq_vector(pdev, 0));
 	if (err) {
 		dev_err(&pdev->dev, "Initialization failed\n");
 		return err;
-- 
2.7.4