[PATCH 5/6] power: reset: sc27xx: Add platform_device_id table

[Otto Pflüger]

Make the poweroff driver for SC27xx-series PMICs probe automatically.
Since the device representing the poweroff functionality of the SC27xx
PMIC is not supposed to have a dedicated device tree node without any
corresponding DT resources [1], an of_device_id table cannot be used
here. Instead, use a platform_device_id table to match the poweroff
sub-device instantiated by the parent MFD driver.

Signed-off-by: Otto Pflüger <otto.pflueger@xxxxxxxxx>

[1]: https://lore.kernel.org/all/20251002025344.GA2958334-robh@xxxxxxxxxx/
---
 drivers/power/reset/sc27xx-poweroff.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/power/reset/sc27xx-poweroff.c b/drivers/power/reset/sc27xx-poweroff.c
index 393bd1c33b73..6376706bf561 100644
--- a/drivers/power/reset/sc27xx-poweroff.c
+++ b/drivers/power/reset/sc27xx-poweroff.c
@@ -6,6 +6,7 @@
 
 #include <linux/cpu.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
@@ -70,11 +71,18 @@ static int sc27xx_poweroff_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id sc27xx_poweroff_id_table[] = {
+	{ "sc2731-poweroff" },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, sc27xx_poweroff_id_table);
+
 static struct platform_driver sc27xx_poweroff_driver = {
 	.probe = sc27xx_poweroff_probe,
 	.driver = {
 		.name = "sc27xx-poweroff",
 	},
+	.id_table = sc27xx_poweroff_id_table,
 };
 module_platform_driver(sc27xx_poweroff_driver);
 

-- 
2.51.0