From e34fd7e9738560fe353d3dc69376cf0c84cc6469 Mon Sep 17 00:00:00 2001 From: Devin Lu Date: Fri, 10 Sep 2021 13:55:44 +0800 Subject: redrix: Set rpm deviation to 1% Currently rpm deviation is 7%, it is too large to cause fan rpm between actual and target is not accurate. This patch set lower rpm deviation to 1%. BUG=b:195673113 BRANCH=none TEST=run ectool pwmsetfanrpm 4000 ~ 4500 rpm. make sure fan actual rpm is accurate. 21-09-10 13:50:32.674 Fan 0 Actual: 4012 rpm 21-09-10 13:50:32.676 Fan 0 Target: 4000 rpm 21-09-10 13:51:28.618 Fan 0 Actual: 4130 rpm 21-09-10 13:51:28.620 Fan 0 Target: 4100 rpm 21-09-10 13:51:54.591 Fan 0 Actual: 4201 rpm 21-09-10 13:51:54.594 Fan 0 Target: 4200 rpm 21-09-10 13:52:28.177 Fan 0 Actual: 4330 rpm 21-09-10 13:52:28.179 Fan 0 Target: 4300 rpm 21-09-10 13:53:20.527 Fan 0 Actual: 4428 rpm 21-09-10 13:53:20.529 Fan 0 Target: 4400 rpm 21-09-10 13:54:12.183 Fan 0 Actual: 4509 rpm 21-09-10 13:54:12.186 Fan 0 Target: 4500 rpm Signed-off-by: Devin Lu Change-Id: I1282ecf3b305541c8f8ac7df59392de6fabeec1f Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3153121 Reviewed-by: Boris Mittelberg Commit-Queue: Boris Mittelberg --- board/redrix/board.h | 1 + 1 file changed, 1 insertion(+) diff --git a/board/redrix/board.h b/board/redrix/board.h index a0b571a7fc..091d4e7318 100644 --- a/board/redrix/board.h +++ b/board/redrix/board.h @@ -175,6 +175,7 @@ /* Fan features */ #define CONFIG_FANS FAN_CH_COUNT #define CONFIG_CUSTOM_FAN_CONTROL +#define RPM_DEVIATION 1 /* Charger defines */ #define CONFIG_CHARGER_BQ25720 -- cgit v1.2.1