From: Peter Yin <peteryin.openbmc@gmail.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Frank Li <Frank.Li@nxp.com>,
Adrian Ng Ho Yin <adrianhoyin.ng@altera.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Manikanta Guntupalli <manikanta.guntupalli@amd.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Jorge Marques <jorge.marques@analog.com>,
linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2] i3c: master: dw-i3c: Fix missing of_node for virtual I2C adapter
Date: Wed, 25 Feb 2026 17:37:52 +0800 [thread overview]
Message-ID: <20260225093755.3696236-1-peteryin.openbmc@gmail.com> (raw)
The DesignWare I3C master driver creates a virtual I2C adapter to
provide backward compatibility with I2C devices. However, the current
implementation does not associate this virtual adapter with any
Device Tree node.
Propagate the of_node from the I3C master platform device to the
virtual I2C adapter's device structure. This ensures that standard
I2C aliases are correctly resolved and bus numbering remains consistent.
Signed-off-by: Peter Yin <peteryin.openbmc@gmail.com>
---
Changes in v2:
- Move the fix from the ast2600-specific driver to the dw-i3c common
drivers/i3c/master/dw-i3c-master.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index d87bde3f7700..adf618d131dc 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -1659,6 +1659,8 @@ int dw_i3c_common_probe(struct dw_i3c_master *master,
pm_runtime_get_noresume(&pdev->dev);
INIT_WORK(&master->hj_work, dw_i3c_hj_work);
+
+ master->base.i2c.dev.of_node = pdev->dev.of_node;
ret = i3c_master_register(&master->base, &pdev->dev,
&dw_mipi_i3c_ops, false);
if (ret)
--
2.43.0
--
linux-i3c mailing list
linux-i3c@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-i3c
next reply other threads:[~2026-02-25 9:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-25 9:37 Peter Yin [this message]
2026-02-25 23:05 ` [PATCH v2] i3c: master: dw-i3c: Fix missing of_node for virtual I2C adapter Frank Li
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