linux-kernel - [PATCH AUTOSEL 4.19] power: supply: cros_usbpd: provide ID table for avoiding fallback match

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Message-ID: <20240528021927.3905602-1-sashal@kernel.org>
Date: Mon, 27 May 2024 22:19:27 -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 <krzysztof.kozlowski@...aro.org>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Sasha Levin <sashal@...nel.org>,
	sre@...nel.org,
	linux-pm@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19] power: supply: cros_usbpd: provide ID table for avoiding fallback match

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

[ Upstream commit 0f8678c34cbfdc63569a9b0ede1fe235ec6ec693 ]

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>
Reviewed-by: Prashant Malani <pmalani@...omium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@...nel.org>
Link: https://lore.kernel.org/r/20240401030052.2887845-4-tzungbi@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/power/supply/cros_usbpd-charger.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/cros_usbpd-charger.c b/drivers/power/supply/cros_usbpd-charger.c
index 74b5914abbf7e..123a5572fe5b1 100644
--- a/drivers/power/supply/cros_usbpd-charger.c
+++ b/drivers/power/supply/cros_usbpd-charger.c
@@ -5,6 +5,7 @@
  * Copyright (c) 2014 - 2018 Google, Inc
  */
 
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/mfd/cros_ec.h>
 #include <linux/mfd/cros_ec_commands.h>
@@ -530,16 +531,22 @@ static int cros_usbpd_charger_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(cros_usbpd_charger_pm_ops, NULL,
 			 cros_usbpd_charger_resume);
 
+static const struct platform_device_id cros_usbpd_charger_id[] = {
+	{ DRV_NAME, 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(platform, cros_usbpd_charger_id);
+
 static struct platform_driver cros_usbpd_charger_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.pm = &cros_usbpd_charger_pm_ops,
 	},
-	.probe = cros_usbpd_charger_probe
+	.probe = cros_usbpd_charger_probe,
+	.id_table = cros_usbpd_charger_id,
 };
 
 module_platform_driver(cros_usbpd_charger_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("ChromeOS EC USBPD charger");
-MODULE_ALIAS("platform:" DRV_NAME);
-- 
2.43.0