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authorYilun Lin <yllin@google.com>2019-01-28 09:40:20 +0800
committerchrome-bot <chrome-bot@chromium.org>2019-01-29 17:45:53 -0800
commit3fe7bcffda1ba1673839aa911b33106d91f7591d (patch)
tree6fb44919da7e81bad0286dfbec0d70127288f7e7
parent39d895712f22d340b885c4651b5c99f6dda40c7c (diff)
downloadchrome-ec-3fe7bcffda1ba1673839aa911b33106d91f7591d.tar.gz
kukui/battery: Bounds max charging voltage by mt6370's 1% err rate.
The battery spec states the maximal charging voltage is 4.42V. Considering +-1% of voltage accuracy from rt9467/mt6370, we should lower the charging voltage to ensure it never hits 4.42V. BUG=b:118799175 BRANCH=None TEST=make BOARD=kukui Change-Id: Ibdbc78f7742efa340c821a12ed6ef43ac27eabc4 Signed-off-by: Yilun Lin <yllin@google.com> Reviewed-on: https://chromium-review.googlesource.com/1436644 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Tested-by: Yilun Lin <yllin@chromium.org> Reviewed-by: Philip Chen <philipchen@chromium.org>
-rw-r--r--board/kukui/battery.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/board/kukui/battery.c b/board/kukui/battery.c
index 5a3e27b844..1e7bec10a7 100644
--- a/board/kukui/battery.c
+++ b/board/kukui/battery.c
@@ -128,9 +128,9 @@ int charger_profile_override(struct charge_state_data *curr)
} temp_zones[BATTERY_COUNT][TEMP_ZONE_COUNT] = {
[BATTERY_SIMPLO] = {
/* TEMP_ZONE_0 */
- {BATTERY_SIMPLO_CHARGE_MIN_TEMP * 10, 150, 1772, 4400},
+ {BATTERY_SIMPLO_CHARGE_MIN_TEMP * 10, 150, 1772, 4376},
/* TEMP_ZONE_1 */
- {150, 450, 4020, 4400},
+ {150, 450, 4020, 4376},
/* TEMP_ZONE_2 */
{450, BATTERY_SIMPLO_CHARGE_MAX_TEMP * 10, 3350, 4300},
},