[PATCH 1/2] regulator: mt6397: Add platform device ID table

From: Javier Martinez Canillas
Date: Mon Jan 25 2016 - 09:38:25 EST


The platform bus_type .match callback attempts to match the platform device
name with an entry on the .id_table if provided and fallbacks to match with
the driver's name if a table is not provided.

Using a platform device ID to match is more explicit, allows the driver to
support more than one device and also the MODULE_DEVICE_TABLE macro can be
used to export the module aliases information instead of the MODULE_ALIAS.

Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
---

drivers/regulator/mt6397-regulator.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/mt6397-regulator.c b/drivers/regulator/mt6397-regulator.c
index a5b2f4762677..585f0399a36b 100644
--- a/drivers/regulator/mt6397-regulator.c
+++ b/drivers/regulator/mt6397-regulator.c
@@ -317,11 +317,18 @@ static int mt6397_regulator_probe(struct platform_device *pdev)
return 0;
}

+static const struct platform_device_id mt6397_platform_ids[] = {
+ {"mt6397-regulator", 0},
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(platform, mt6397_platform_ids);
+
static struct platform_driver mt6397_regulator_driver = {
.driver = {
.name = "mt6397-regulator",
},
.probe = mt6397_regulator_probe,
+ .id_table = mt6397_platform_ids,
};

module_platform_driver(mt6397_regulator_driver);
@@ -329,4 +336,3 @@ module_platform_driver(mt6397_regulator_driver);
MODULE_AUTHOR("Flora Fu <flora.fu@xxxxxxxxxxxx>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:mt6397-regulator");
--
2.5.0