The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/ec/+/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e

commit c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e
Author: Daisuke Nojiri <dnojiri@chromium.org>
Date: Tue Jan 23 02:50:11 2018

host_command: Suppress individual host command debug log

Host command handler prints every single host command except when
commands are repeated back-to-back. This patch allows each board
decide which commands should be ignored. When debug printf is
suppressed, a global counter is incremented. Developers know there
were commands processed but not reported to the console.

BUG= chromium:803955 
BRANCH=none
TEST=Observe 0x97 and 0x98 were not printed. Global suppress
counter is incremented.

Change-Id: I05e8cde9039f602e8fc06c20e89b328e797bd733
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/876952
Reviewed-by: Randall Spangler <rspangler@chromium.org>

[modify] https://crrev.com/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e/board/fizz/board.h
[modify] https://crrev.com/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e/board/fizz/board.c
[modify] https://crrev.com/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e/include/host_command.h
[modify] https://crrev.com/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e/common/host_command.c
[modify] https://crrev.com/c06d7fea8f6b8235e9a7dcbb76e2a637189f9d2e/include/config.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/ec/+/cd5173dfe0e80ad2ca622e64aeb9d14b82ef494f

commit cd5173dfe0e80ad2ca622e64aeb9d14b82ef494f
Author: Daisuke Nojiri <dnojiri@chromium.org>
Date: Sat Feb 03 10:38:07 2018

Fizz: Suppress EC_CMD_PD_GET_LOG_ENTR debug log

Host command handler prints every single host command except when
commands are repeated back-to-back. Some commands do not provide
useful info when studying feedback reports or what is worse they
may hide critical info by flooding the EC log.

BUG= chromium:803955 
BRANCH=none
TEST=Observe 'HC 0x115' is not printed.

Change-Id: I4901b27bbfedd54dc0d364b16c49d4ed0dea0fc4
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/896694
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

[modify] https://crrev.com/cd5173dfe0e80ad2ca622e64aeb9d14b82ef494f/board/fizz/board.c

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/ec/+/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0

commit 971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0
Author: Daisuke Nojiri <dnojiri@chromium.org>
Date: Sat Feb 17 05:41:41 2018

host_command: Count suppressed host commands individually

BUG= chromium:803955 
BRANCH=none
TEST=Verify counters are printed every hour and before sysjump as follows:
[12.540051 HC Suppressed: 0x97=25 0x98=0 0x115=0]

Change-Id: I1c1aecf316d233f967f1d2f6ee6c9c16cc59bece
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/912150

[modify] https://crrev.com/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0/board/fizz/board.h
[modify] https://crrev.com/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0/board/fizz/board.c
[modify] https://crrev.com/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0/include/host_command.h
[modify] https://crrev.com/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0/common/host_command.c
[modify] https://crrev.com/971ef1e03c791e95fe7e1ad8d0ea54da5c4f88d0/include/config.h