Re: [PATCH v2] ACPI: AGDI: Add interrupt signaling mode support

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Hi Kazuhiro,

I have a couple of minor comments below

On Fri, 29 Aug 2025, Kazuhiro Abe wrote:
AGDI has two types of signaling modes: SDEI and interrupt.
Currently, the AGDI driver only supports SDEI.
Therefore, add support for interrupt singaling mode
The interrupt vector is retrieved from the AGDI table, and call panic
function when an interrupt occurs.

---
I keep normal IRQ code when NMI cannot be used.
If there is any concern, please let me know.

v1->v2
- Remove acpica update since there is no need to update define value
  for this patch.

Signed-off-by: Kazuhiro Abe <fj1078ii@xxxxxxxxxxxxxxxxx>
---
drivers/acpi/arm64/agdi.c | 98 ++++++++++++++++++++++++++++++++++++---
1 file changed, 91 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/arm64/agdi.c b/drivers/acpi/arm64/agdi.c
index e0df3daa4abf..e887aab6b448 100644
--- a/drivers/acpi/arm64/agdi.c
+++ b/drivers/acpi/arm64/agdi.c

...

static int agdi_probe(struct platform_device *pdev)
{
	struct agdi_data *adata = dev_get_platdata(&pdev->dev);
@@ -55,12 +108,17 @@ static int agdi_probe(struct platform_device *pdev)
	if (!adata)
		return -EINVAL;

-	return agdi_sdei_probe(pdev, adata);
+	if (adata->flags & ACPI_AGDI_SIGNALING_MODE)
+		agdi_interrupt_probe(pdev, adata);
+	else
+		agdi_sdei_probe(pdev, adata);
+
+	return 0;

Is there a reason why you always return zero instead of a possible
error code from either of the probe functions?

}


...

+static void agdi_remove(struct platform_device *pdev)
+{
+	struct agdi_data *adata = dev_get_platdata(&pdev->dev);
+
+	if (adata->flags & ACPI_AGDI_SIGNALING_MODE) {
+		agdi_interrupt_remove(pdev, adata);
+	} else {
+		agdi_sdei_remove(pdev, adata);
+	}

You don't need curly braces in this if/else block.

Cheers, Ilkka




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