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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-12 19:46:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-12 19:46:32 +0300
commitf47d633134f7033e3d0c667419d9f8afd69e308d (patch)
treea5242d86288599fda63ed79b2d131f5a298bb66f /Documentation
parent004cc08675b761fd82288bab1b5ba5e1ca746eca (diff)
parent2794449576a6024e203eca5cc2c1a3ae33102b8e (diff)
downloadlinux-f47d633134f7033e3d0c667419d9f8afd69e308d.tar.xz
Merge tag 'tag-chrome-platform-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Benson Leung: - SPDX identifier cleanup for platform/chrome - Cleanup series between mfd and chrome/platform, moving cros-ec attributes from mfd/cros_ec_dev to sub-drivers in platform/chrome - Wilco EC driver - Maintainership change to new group repository * tag 'tag-chrome-platform-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: fix wilco-ec dependencies platform/chrome: wilco_ec: Add RTC driver platform/chrome: wilco_ec: Add support for raw commands in debugfs platform/chrome: Add new driver for Wilco EC platform/chrome: cros_ec: Remove cros_ec dependency in lpc_mec MAINTAINERS: chrome-platform: change the git tree to a chrome-platform group git tree platform/chrome: cros_ec_sysfs: remove pr_fmt() define platform/chrome: cros_ec_lightbar: remove pr_fmt() define platform/chrome: cros_kbd_led_backlight: switch to SPDX identifier platform/chrome: cros_ec_spi: switch to SPDX identifier platform/chrome: cros_ec_proto: switch to SPDX identifier platform/chrome: cros_ec_lpc: switch to SPDX identifier platform/chrome: cros_ec_i2c: switch to SPDX identifier platform/chrome: cros_ec_vbc: switch to SPDX identifier platform/chrome: cros_ec_sysfs: switch to SPDX identifier platform/chrome: cros_ec_lightbar: switch to SPDX identifier platform/chrome: cros_ec_debugfs: switch to SPDX identifier platform/chrome: cromeos_pstore: switch to SPDX identifier
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/debugfs-wilco-ec23
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-wilco-ec b/Documentation/ABI/testing/debugfs-wilco-ec
new file mode 100644
index 000000000000..f814f112e213
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-wilco-ec
@@ -0,0 +1,23 @@
+What: /sys/kernel/debug/wilco_ec/raw
+Date: January 2019
+KernelVersion: 5.1
+Description:
+ Write and read raw mailbox commands to the EC.
+
+ For writing:
+ Bytes 0-1 indicate the message type:
+ 00 F0 = Execute Legacy Command
+ 00 F2 = Read/Write NVRAM Property
+ Byte 2 provides the command code
+ Bytes 3+ consist of the data passed in the request
+
+ At least three bytes are required, for the msg type and command,
+ with additional bytes optional for additional data.
+
+ Example:
+ // Request EC info type 3 (EC firmware build date)
+ $ echo 00 f0 38 00 03 00 > raw
+ // View the result. The decoded ASCII result "12/21/18" is
+ // included after the raw hex.
+ $ cat raw
+ 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 .12/21/18.8...