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The x86 Chromebooks have the ChromeOS ACPI device. This driver attaches to the ChromeOS ACPI device and exports the values reported by ACPI in a sysfs directory. This data isn't present in ACPI tables when read through ACPI tools, hence a driver is needed to do it. The driver gets data from firmware using the ACPI component of the kernel. The ACPI values are presented in string form (numbers as decimal values) or binary blobs, and can be accessed as the contents of the appropriate read only files in the standard ACPI device's sysfs directory tree. This data is consumed by the ChromeOS user space. Reviewed-by: Guenter Roeck <groeck@chromium.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Co-developed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org> Link: https://lore.kernel.org/r/Yn4OKYrtV35Dv+nd@debian-BULLSEYE-live-builder-AMD64
33 lines
1.4 KiB
Makefile
33 lines
1.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# tell define_trace.h where to find the cros ec trace header
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CFLAGS_cros_ec_trace.o:= -I$(src)
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CFLAGS_cros_ec_sensorhub_ring.o:= -I$(src)
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obj-$(CONFIG_CHROMEOS_ACPI) += chromeos_acpi.o
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obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o
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obj-$(CONFIG_CHROMEOS_PRIVACY_SCREEN) += chromeos_privacy_screen.o
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obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o
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obj-$(CONFIG_CHROMEOS_TBMC) += chromeos_tbmc.o
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obj-$(CONFIG_CROS_EC) += cros_ec.o
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obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o
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obj-$(CONFIG_CROS_EC_ISHTP) += cros_ec_ishtp.o
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obj-$(CONFIG_CROS_EC_RPMSG) += cros_ec_rpmsg.o
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obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
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cros_ec_lpcs-objs := cros_ec_lpc.o cros_ec_lpc_mec.o
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obj-$(CONFIG_CROS_EC_TYPEC) += cros_ec_typec.o
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obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpcs.o
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obj-$(CONFIG_CROS_EC_PROTO) += cros_ec_proto.o cros_ec_trace.o
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obj-$(CONFIG_CROS_KBD_LED_BACKLIGHT) += cros_kbd_led_backlight.o
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obj-$(CONFIG_CROS_EC_CHARDEV) += cros_ec_chardev.o
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obj-$(CONFIG_CROS_EC_LIGHTBAR) += cros_ec_lightbar.o
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obj-$(CONFIG_CROS_EC_VBC) += cros_ec_vbc.o
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obj-$(CONFIG_CROS_EC_DEBUGFS) += cros_ec_debugfs.o
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cros-ec-sensorhub-objs := cros_ec_sensorhub.o cros_ec_sensorhub_ring.o
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obj-$(CONFIG_CROS_EC_SENSORHUB) += cros-ec-sensorhub.o
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obj-$(CONFIG_CROS_EC_SYSFS) += cros_ec_sysfs.o
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obj-$(CONFIG_CROS_USBPD_LOGGER) += cros_usbpd_logger.o
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obj-$(CONFIG_CROS_USBPD_NOTIFY) += cros_usbpd_notify.o
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obj-$(CONFIG_WILCO_EC) += wilco_ec/
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