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d453ceb654
Add trace event to report samples and their timestamp coming from the EC. It allows to check if the timestamps are correct and the filter is working correctly without introducing too much latency. To enable these events: cd /sys/kernel/debug/tracing/ echo 1 > events/cros_ec/enable echo 0 > events/cros_ec/cros_ec_request_start/enable echo 0 > events/cros_ec/cros_ec_request_done/enable echo 1 > tracing_on cat trace_pipe Observe event flowing: irq/105-chromeo-95 [000] .... 613.659758: cros_ec_sensorhub_timestamp: ... irq/105-chromeo-95 [000] .... 613.665219: cros_ec_sensorhub_filter: dx: ... Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
29 lines
1.3 KiB
Makefile
29 lines
1.3 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$(src)
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obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.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-$(CONFIG_CROS_EC_DEBUGFS) += cros_ec_debugfs.o
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cros-ec-sensorhub-objs := cros_ec_sensorhub.o cros_ec_sensorhub_ring.o cros_ec_trace.o
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obj-$(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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