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platform/x86: x86-android-tablets: Add an init() callback to struct x86_dev_info

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Add an init() callback to struct x86_dev_info, board descriptions can use
this to do some custom setup before registering the i2c_clients, platform-
devices and servdevs.

Also add an exit() callback to also allow for cleanup of the custom setup.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-By: Lubomir Rintel <lkundrak@V3.sk>
Link: https://lore.kernel.org/r/20220110103952.48760-2-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2022-01-10 11:39:51 +01:00
parent 4ce2a32d40
commit 84c2dcdd47
1 changed files with 15 additions and 0 deletions
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15
drivers/platform/x86/x86-android-tablets.c
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@ -153,6 +153,8 @@ struct x86_dev_info {
int i2c_client_count;
int pdev_count;
int serdev_count;
int (*init)(void);
void (*exit)(void);
};
/* Generic / shared bq24190 settings */
@ -674,6 +676,7 @@ 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 void (*exit_handler)(void);
static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info,
int idx)
@ -791,6 +794,9 @@ static void x86_android_tablet_cleanup(void)
kfree(i2c_clients);
if (exit_handler)
exit_handler();
for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
gpiod_remove_lookup_table(gpiod_lookup_tables[i]);
}
@ -833,6 +839,15 @@ static __init int x86_android_tablet_init(void)
for (i = 0; gpiod_lookup_tables && gpiod_lookup_tables[i]; i++)
gpiod_add_lookup_table(gpiod_lookup_tables[i]);
if (dev_info->init) {
ret = dev_info->init();
if (ret < 0) {
x86_android_tablet_cleanup();
return ret;
}
exit_handler = dev_info->exit;
}
i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL);
if (!i2c_clients) {
x86_android_tablet_cleanup();