Re: [RFC,v14 2/5] of/irq: Adjust of_pci_irq parsing for multiple interrupts

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On 2/8/2023 5:14 PM, Thierry Reding wrote:
On Wed, Feb 08, 2023 at 04:46:42PM +0530, Manikanta Maddireddy wrote:
From: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>

Currently we are considering the first irq as the PCI interrupt pin,
but a PCI device may have multiple interrupts(e.g. PCIe WAKE# pin).

Only parse the PCI interrupt pin when the irq is unnamed or named as
"pci".

Signed-off-by: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
---

Changes in v14:
Address Rob's comment on using of_property_match_string().

Changes in v13: None
Changes in v12: None
Changes in v11:
Address Brian's comments.

Changes in v10: None
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v3: None
Changes in v2: None

  drivers/pci/of.c | 14 +++++++++++---
  1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/of.c b/drivers/pci/of.c
index 196834ed44fe..ff897c40ed71 100644
--- a/drivers/pci/of.c
+++ b/drivers/pci/of.c
@@ -429,9 +429,17 @@ static int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *
  	 */
  	dn = pci_device_to_OF_node(pdev);
  	if (dn) {
-		rc = of_irq_parse_one(dn, 0, out_irq);
-		if (!rc)
-			return rc;
+		int index = 0;
No need to initialize to 0 here since you're assigning to it immediately
below.

Otherwise, looks good, so with that initialization dropped, this is:

Reviewed-by: Thierry Reding <treding@xxxxxxxxxx>
Ack, I will take care of it next version.

Manikanta



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