linux-kernel - [PATCH 1/4] i2c: designware: Create shared header hosting driver name

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Date: Tue, 23 Apr 2024 16:36:19 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: linux-kernel@...r.kernel.org
Cc: Florian Fainelli <florian.fainelli@...adcom.com>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Jan Dabros <jsd@...ihalf.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Lee Jones <lee@...nel.org>,
	Jiawen Wu <jiawenwu@...stnetic.com>,
	Mengyuan Lou <mengyuanlou@...-swift.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Andrew Lunn <andrew@...n.ch>,
	Duanqiang Wen <duanqiangwen@...-swift.com>,
	linux-i2c@...r.kernel.org (open list:SYNOPSYS DESIGNWARE I2C DRIVER),
	netdev@...r.kernel.org (open list:WANGXUN ETHERNET DRIVER)
Subject: [PATCH 1/4] i2c: designware: Create shared header hosting driver name

We have a number of drivers that reference the string "i2c_designware"
yet this is copied all over the places with opportunities for this
string being mis-used. Create a shared header that defines this as a
constant that other drivers can reference.

Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 MAINTAINERS                                 | 1 +
 drivers/i2c/busses/i2c-designware-pcidrv.c  | 5 +++--
 drivers/i2c/busses/i2c-designware-platdrv.c | 5 +++--
 include/linux/i2c-designware.h              | 7 +++++++
 4 files changed, 14 insertions(+), 4 deletions(-)
 create mode 100644 include/linux/i2c-designware.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 2d5acd6d98c4..d5e10c747f65 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21438,6 +21438,7 @@ R:	Jan Dabros <jsd@...ihalf.com>
 L:	linux-i2c@...r.kernel.org
 S:	Supported
 F:	drivers/i2c/busses/i2c-designware-*
+F:	include/linux/i2c-designware.h
 
 SYNOPSYS DESIGNWARE MMC/SD/SDIO DRIVER
 M:	Jaehoon Chung <jh80.chung@...sung.com>
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 9be9a2658e1f..948669265375 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -14,6 +14,7 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/i2c.h>
+#include <linux/i2c-designware.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -27,7 +28,7 @@
 #include "i2c-designware-core.h"
 #include "i2c-ccgx-ucsi.h"
 
-#define DRIVER_NAME "i2c-designware-pci"
+#define DRIVER_NAME I2C_DESIGNWARE_NAME "-pci"
 
 enum dw_pci_ctl_id_t {
 	medfield,
@@ -425,7 +426,7 @@ static struct pci_driver dw_i2c_driver = {
 module_pci_driver(dw_i2c_driver);
 
 /* Work with hotplug and coldplug */
-MODULE_ALIAS("i2c_designware-pci");
+MODULE_ALIAS(DRIVER_NAME);
 MODULE_AUTHOR("Baruch Siach <baruch@...s.co.il>");
 MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter");
 MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 4ab41ba39d55..dc335a22546b 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/i2c.h>
+#include <linux/i2c-designware.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -480,13 +481,13 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
 };
 
 /* Work with hotplug and coldplug */
-MODULE_ALIAS("platform:i2c_designware");
+MODULE_ALIAS("platform:" I2C_DESIGNWARE_NAME);
 
 static struct platform_driver dw_i2c_driver = {
 	.probe = dw_i2c_plat_probe,
 	.remove_new = dw_i2c_plat_remove,
 	.driver		= {
-		.name	= "i2c_designware",
+		.name	= I2C_DESIGNWARE_NAME,
 		.of_match_table = of_match_ptr(dw_i2c_of_match),
 		.acpi_match_table = ACPI_PTR(dw_i2c_acpi_match),
 		.pm	= pm_ptr(&dw_i2c_dev_pm_ops),
diff --git a/include/linux/i2c-designware.h b/include/linux/i2c-designware.h
new file mode 100644
index 000000000000..f20240ac89c4
--- /dev/null
+++ b/include/linux/i2c-designware.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __I2C_DESIGNWARE_H__
+#define __I2C_DESIGNWARE_H__
+
+#define I2C_DESIGNWARE_NAME	"i2c_designware"
+
+#endif /* __I2C_DESIGNWARE_H__ */
-- 
2.34.1