platform/x86: x86-android-tablets: Add support for registering GPIO lookup tables

Add support for registering GPIO lookup tables.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211229231431.437982-9-hdegoede@redhat.com

diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c
index 5267e57..0b521e4 100644 (file)
--- a/drivers/platform/x86/x86-android-tablets.c
+++ b/drivers/platform/x86/x86-android-tablets.c
@@ -142,6 +142,7 @@ struct x86_serdev_info {
 };
 
 struct x86_dev_info {
+       struct gpiod_lookup_table **gpiod_lookup_tables;
        const struct x86_i2c_client_info *i2c_client_info;
        const struct platform_device_info *pdev_info;
        const struct x86_serdev_info *serdev_info;
@@ -293,6 +294,7 @@ static int serdev_count;
 static struct i2c_client **i2c_clients;
 static struct platform_device **pdevs;
 static struct serdev_device **serdevs;
+static struct gpiod_lookup_table **gpiod_lookup_tables;
 
 static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,
                                             int idx)
@@ -409,6 +411,9 @@ static void x86_android_tablet_cleanup(void)
                i2c_unregister_device(i2c_clients[i]);
 
        kfree(i2c_clients);
+
+       for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
+               gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
 }
 
 static __init int x86_android_tablet_init(void)
@@ -423,6 +428,10 @@ static __init int x86_android_tablet_init(void)
 
        dev_info = id->driver_data;
 
+       gpiod_lookup_tables = dev_info->gpiod_lookup_tables;
+       for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
+               gpiod_add_lookup_table(gpiod_lookup_tables[i]);
+
        i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
        if (!i2c_clients)
                return -ENOMEM;