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platform/chrome: cros_ec_proto: Allow to build as module

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Allow to build ChromeOS EC communication protocol helpers as
kernel module which is particularly useful for Android GKI (Generic
Kernel Image) configuration. With this change the ChromeOS Platform
(CONFIG_CHROME_PLATFORMS=y) can be enabled directly from the vendor
kconfig fragment whithout additional configuration in gki_defconfig.

Signed-off-by: Slawomir Rosek <srosek@chromium.org>
Link: https://lore.kernel.org/r/20250328132612.511471-1-srosek@chromium.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
This commit is contained in:
Slawomir Rosek 2025-03-28 13:26:12 +00:00 • committed by Tzung-Bi Shih
parent da90147bf5
commit ccf395bde6
3 changed files with 6 additions and 2 deletions
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2
drivers/platform/chrome/Kconfig
View file

@ -155,7 +155,7 @@ config CROS_EC_LPC
module will be called cros_ec_lpcs.
config CROS_EC_PROTO
bool
tristate
help
ChromeOS EC communication protocol helpers.

3
drivers/platform/chrome/Makefile
View file

@ -25,7 +25,8 @@ endif
obj-$(CONFIG_CROS_EC_TYPEC) += cros-ec-typec.o
obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpcs.o
obj-$(CONFIG_CROS_EC_PROTO) += cros_ec_proto.o cros_ec_trace.o
cros-ec-proto-objs := cros_ec_proto.o cros_ec_trace.o
obj-$(CONFIG_CROS_EC_PROTO) += cros-ec-proto.o
obj-$(CONFIG_CROS_KBD_LED_BACKLIGHT) += cros_kbd_led_backlight.o
obj-$(CONFIG_CROS_EC_CHARDEV) += cros_ec_chardev.o
obj-$(CONFIG_CROS_EC_LIGHTBAR) += cros_ec_lightbar.o

3
drivers/platform/chrome/cros_ec_proto.c
View file

@ -1152,3 +1152,6 @@ int cros_ec_get_cmd_versions(struct cros_ec_device *ec_dev, u16 cmd)
return resp.version_mask;
}
EXPORT_SYMBOL_GPL(cros_ec_get_cmd_versions);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ChromeOS EC communication protocol helpers");