diff options
| author | Caveh Jalali <caveh@chromium.org> | 2022-11-02 19:55:39 -0700 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-11-10 15:09:48 +0000 |
| commit | 2320c03087bd46f752966793d652ccd9a0870324 (patch) | |
| tree | 710f660f828d608fac63da28796aa177b1ceb774 /src/ec/google/chromeec/ec.c | |
| parent | b456a96361fd8f170b2c6ff17a8ce23c787e0d7c (diff) | |
ec/google/chromeec: Simplify KEYBOARD_BACKLIGHT error handling
Simplify the implementation of setting the keyboard backlight PWM
value. Host command stubs typcially don't need to examine the host
command's return value as stored in cmd_code because that level of
detail is not very interesting. Higher value error codes are returned in
actual result structures.
This host command can return EC_RES_ERROR for out of range PWM values
which is already a generic error and unlikely to happen since we already
limit the range to 0..100 here. Finally, none of the callers in coreboot
check the return value.
BUG=b:258126464
BRANCH=none
TEST=none
Change-Id: If17bc4e31baba02ba2f7ae8e7a5cbec7f97688c5
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69369
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/ec/google/chromeec/ec.c')
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index b609559f7a..3afe840d53 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -87,10 +87,10 @@ int google_chromeec_kbbacklight(int percent) .cmd_dev_index = 0, }; - google_chromeec_command(&cmd); - printk(BIOS_DEBUG, "Google Chrome set keyboard backlight: status (%x)\n", - cmd.cmd_code); - return cmd.cmd_code; + if (google_chromeec_command(&cmd) != 0) + return -1; + + return 0; } void google_chromeec_post(uint8_t postcode) |