linux-kernel - [PATCH AUTOSEL 6.9 11/15] platform/chrome: cros_usbpd_notify: provide ID table for avoiding fallback match

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Date: Sun, 26 May 2024 05:41:43 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Tzung-Bi Shih <tzungbi@...nel.org>,
	Benson Leung <bleung@...omium.org>,
	Prashant Malani <pmalani@...omium.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	chrome-platform@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.9 11/15] platform/chrome: cros_usbpd_notify: provide ID table for avoiding fallback match

From: Tzung-Bi Shih <tzungbi@...nel.org>

[ Upstream commit 8ad3b9652ed6a115c56214a0eab06952818b3ddf ]

Instead of using fallback driver name match, provide ID table[1] for the
primary match.

[1]: https://elixir.bootlin.com/linux/v6.8/source/drivers/base/platform.c#L1353

Reviewed-by: Benson Leung <bleung@...omium.org>
Acked-by: Prashant Malani <pmalani@...omium.org>
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
Link: https://lore.kernel.org/r/20240329075630.2069474-8-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih <tzungbi@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/platform/chrome/cros_usbpd_notify.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_usbpd_notify.c b/drivers/platform/chrome/cros_usbpd_notify.c
index aacad022f21df..c83f81d86483c 100644
--- a/drivers/platform/chrome/cros_usbpd_notify.c
+++ b/drivers/platform/chrome/cros_usbpd_notify.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_proto.h>
 #include <linux/platform_data/cros_usbpd_notify.h>
@@ -218,12 +219,19 @@ static void cros_usbpd_notify_remove_plat(struct platform_device *pdev)
 					   &pdnotify->nb);
 }
 
+static const struct platform_device_id cros_usbpd_notify_id[] = {
+	{ DRV_NAME, 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(platform, cros_usbpd_notify_id);
+
 static struct platform_driver cros_usbpd_notify_plat_driver = {
 	.driver = {
 		.name = DRV_NAME,
 	},
 	.probe = cros_usbpd_notify_probe_plat,
 	.remove_new = cros_usbpd_notify_remove_plat,
+	.id_table = cros_usbpd_notify_id,
 };
 
 static int __init cros_usbpd_notify_init(void)
@@ -258,4 +266,3 @@ module_exit(cros_usbpd_notify_exit);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("ChromeOS power delivery notifier device");
 MODULE_AUTHOR("Jon Flatley <jflat@...omium.org>");
-MODULE_ALIAS("platform:" DRV_NAME);
-- 
2.43.0