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| author | Hans de Goede <hdegoede@redhat.com> | 2021-12-30 00:14:28 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-01-05 11:31:19 +0100 |
| commit | f08aebe9af935422ec58ff3003eda4dfb91d2dd2 (patch) | |
| tree | 6f8c12974b4b2b2cd829548f86f6b02b42cbd2bb /drivers/platform | |
| parent | platform/x86: x86-android-tablets: Add support for registering GPIO lookup ta... (diff) | |
| download | linux-f08aebe9af935422ec58ff3003eda4dfb91d2dd2.tar.xz linux-f08aebe9af935422ec58ff3003eda4dfb91d2dd2.zip | |
platform/x86: x86-android-tablets: Add support for preloading modules
Since the x86-android-tablets code does all it work from module_init() it
cannot use -EPROBE_DEFER to wait for e.g. interrupt providing GPIO-chips
or PMIC-cells to show up.
To make sure things will still work when some necessary resource providers
are build as module allow the per board info to specify a list of modules
to pre-load before instantiating the I2C clients.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211229231431.437982-10-hdegoede@redhat.com
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/platform/x86/x86-android-tablets.c b/drivers/platform/x86/x86-android-tablets.c index 0b521e4671aa..3c01c8607c26 100644 --- 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 { + const char * const *modules; struct gpiod_lookup_table **gpiod_lookup_tables; const struct x86_i2c_client_info *i2c_client_info; const struct platform_device_info *pdev_info; @@ -428,6 +429,13 @@ static __init int x86_android_tablet_init(void) dev_info = id->driver_data; + /* + * Since this runs from module_init() it cannot use -EPROBE_DEFER, + * instead pre-load any modules which are listed as requirements. + */ + for (i = 0; dev_info->modules && dev_info->modules[i]; i++) + request_module(dev_info->modules[i]); + 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]); |