linux-kernel - [PATCH v4 2/3] i2c: amd-isp: Initialize unique adapter name

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Message-ID: <20250609155601.1477055-3-pratap.nirujogi@amd.com>
Date: Mon, 9 Jun 2025 11:53:56 -0400
From: Pratap Nirujogi <pratap.nirujogi@....com>
To: <andi.shyti@...nel.org>, <ilpo.jarvinen@...ux.intel.com>,
	<rdunlap@...radead.org>, <hdegoede@...hat.com>, <sfr@...b.auug.org.au>,
	<linux-next@...r.kernel.org>
CC: <linux-i2c@...r.kernel.org>, <platform-driver-x86@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <benjamin.chan@....com>, <bin.du@....com>,
	<gjorgji.rosikopulos@....com>, <king.li@....com>, <dantony@....com>, "Pratap
 Nirujogi" <pratap.nirujogi@....com>
Subject: [PATCH v4 2/3] i2c: amd-isp: Initialize unique adapter name

Initialize unique name for amdisp i2c adapter, which is used
in the platform driver to detect the matching adapter for
i2c_client creation.

Add definition of amdisp i2c adapter name in a new header file
(include/linux/soc/amd/isp4_misc.h) as it is referred in different
driver modules.

Tested-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@....com>
---
 MAINTAINERS                                |  1 +
 drivers/i2c/busses/i2c-designware-amdisp.c |  2 ++
 include/linux/soc/amd/isp4_misc.h          | 12 ++++++++++++
 3 files changed, 15 insertions(+)
 create mode 100644 include/linux/soc/amd/isp4_misc.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 1d24abc83d90..dd67855f5a07 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23878,6 +23878,7 @@ M:	Bin Du <bin.du@....com>
 L:	linux-i2c@...r.kernel.org
 S:	Maintained
 F:	drivers/i2c/busses/i2c-designware-amdisp.c
+F:	include/linux/soc/amd/isp4_misc.h
 
 SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
 M:	Jaehoon Chung <jh80.chung@...sung.com>
diff --git a/drivers/i2c/busses/i2c-designware-amdisp.c b/drivers/i2c/busses/i2c-designware-amdisp.c
index ad6f08338124..450793d5f839 100644
--- a/drivers/i2c/busses/i2c-designware-amdisp.c
+++ b/drivers/i2c/busses/i2c-designware-amdisp.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/soc/amd/isp4_misc.h>
 
 #include "i2c-designware-core.h"
 
@@ -62,6 +63,7 @@ static int amd_isp_dw_i2c_plat_probe(struct platform_device *pdev)
 
 	adap = &isp_i2c_dev->adapter;
 	adap->owner = THIS_MODULE;
+	scnprintf(adap->name, sizeof(adap->name), AMDISP_I2C_ADAP_NAME);
 	ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));
 	adap->dev.of_node = pdev->dev.of_node;
 	/* use dynamically allocated adapter id */
diff --git a/include/linux/soc/amd/isp4_misc.h b/include/linux/soc/amd/isp4_misc.h
new file mode 100644
index 000000000000..6738796986a7
--- /dev/null
+++ b/include/linux/soc/amd/isp4_misc.h
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright (C) 2025 Advanced Micro Devices, Inc.
+ */
+
+#ifndef __SOC_ISP4_MISC_H
+#define __SOC_ISP4_MISC_H
+
+#define AMDISP_I2C_ADAP_NAME "AMDISP DesignWare I2C adapter"
+
+#endif
-- 
2.43.0