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@infradead.org>
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@amd.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250609155601.1477055-3-pratap.nirujogi@amd.com

diff --git a/MAINTAINERS b/MAINTAINERS
index c3f7fbd0d67afe8376ea84bc17d70e9fa4b89bf6..8719f097aae34e9410da17b13a9e44b69f48c89c 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -24063,6 +24063,7 @@ M:      Bin Du <bin.du@amd.com>
 L:     linux-i2c@vger.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@samsung.com>

diff --git a/drivers/i2c/busses/i2c-designware-amdisp.c b/drivers/i2c/busses/i2c-designware-amdisp.c
index ad6f08338124283c4f505db62b00588297f0e81f..450793d5f83921ac9a8c6d00414890779da49c07 100644 (file)
--- 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 (file)
index 0000000..6738796
--- /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