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authorPeter Marheine <pmarheine@chromium.org>2022-11-09 16:51:36 +1100
committerChromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com>2022-11-17 00:47:22 +0000
commitec31407993ec9b5ae14fed72d728a4061d656d65 (patch)
treef576b45529cfa8b2b29a7bbcbbff36e33c686b61 /include/charge_state_v2.h
parentfcc7716bf1461477a3b3d8a53b85fdc81df677e4 (diff)
downloadchrome-ec-ec31407993ec9b5ae14fed72d728a4061d656d65.tar.gz
Add CONFIG_CHARGER_INPUT_CURRENT_DERATE_PCT
Many boards derate their charge current limits by some fixed ratio, which results in duplicate code appearing in many different boards. Since nearly all of these are in implementations of board_set_charge_limit() and themselves call charge_set_input_current_limit(), make that derating a config option and move it into charge_set_input_current_limit(). This makes most boards' implementations uniform and ripe for further simplification in later changes. For those boards that do more complex adjustments, those can be retained by keeping the existing logic in board_set_charge_limit(). Several boards also uselessly defined multiple versions of board_set_charge_limit(): the redundant ones are removed. BUG=b:163093572 TEST=make buildall; zmake build -a BRANCH=none LOW_COVERAGE_REASON=follow-up CLs delete uncovered code Change-Id: I0a7162e72538a91ad06ba85b91a10b93eb6af96b Signed-off-by: Peter Marheine <pmarheine@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/4015966 Code-Coverage: Zoss <zoss-cl-coverage@prod.google.com> Commit-Queue: Keith Short <keithshort@chromium.org> Reviewed-by: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'include/charge_state_v2.h')
-rw-r--r--include/charge_state_v2.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/charge_state_v2.h b/include/charge_state_v2.h
index 0817204774..5f886257d3 100644
--- a/include/charge_state_v2.h
+++ b/include/charge_state_v2.h
@@ -71,6 +71,9 @@ int charge_set_output_current_limit(int chgnum, int ma, int mv);
* Set the charge input current limit. This value is stored and sent every
* time AC is applied.
*
+ * The input current limit is automatically derated by
+ * CONFIG_CHARGER_INPUT_CURRENT_DERATE_PCT, if configured.
+ *
* @param ma New input current limit in mA
* @param mv Negotiated charge voltage in mV.
* @return EC_SUCCESS or error