linux-kernel - [PATCH] i2c:thunderx:Add disabled node check

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Message-ID: <20230711054147.506437-1-aryan.srivastava@alliedtelesis.co.nz>
Date:   Tue, 11 Jul 2023 17:41:46 +1200
From:   Aryan Srivastava <aryan.srivastava@...iedtelesis.co.nz>
To:     rric@...nel.org
Cc:     linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chris.Packham@...iedtelesis.co.nz,
        Aryan Srivastava <aryan.srivastava@...iedtelesis.co.nz>
Subject: [PATCH] i2c:thunderx:Add disabled node check

Add check for disabled nodes. These nodes should not be probed. Can
result in logging for HW which is not present.

Signed-off-by: Aryan Srivastava <aryan.srivastava@...iedtelesis.co.nz>
---
 drivers/i2c/busses/i2c-thunderx-pcidrv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/i2c/busses/i2c-thunderx-pcidrv.c b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
index a77cd86fe75e..7fcdb237076a 100644
--- a/drivers/i2c/busses/i2c-thunderx-pcidrv.c
+++ b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
@@ -158,6 +158,10 @@ static int thunder_i2c_probe_pci(struct pci_dev *pdev,
 	struct octeon_i2c *i2c;
 	int ret;
 
+	/* Ignore disabled nodes. */
+	if (!of_device_is_available(pdev->dev.of_node))
+		return 0;
+
 	i2c = devm_kzalloc(dev, sizeof(*i2c), GFP_KERNEL);
 	if (!i2c)
 		return -ENOMEM;
-- 
2.41.0