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authorGwendal Grignou <gwendal@chromium.org>2020-12-10 21:38:48 -0800
committerCommit Bot <commit-bot@chromium.org>2020-12-21 06:51:51 +0000
commite2882f20fa28810e735e1a8f0750674e7940eb2d (patch)
tree12cf288e7751a417f294bbfc502c96b920551289 /driver/als_bh1730.h
parent89dbca62cb6b01f1242b01a44a8ac41c1cd6d151 (diff)
downloadchrome-ec-e2882f20fa28810e735e1a8f0750674e7940eb2d.tar.gz
kohaku: Set base light sensor information correctly
BH1370 light sensor only support 10Hz frequency. Set parameters properly. Sensor only used on kohaku. BUG=b:172343923 BRANCH=hatch TEST=Check on Kohaku the light parameters are correct. Change-Id: Ibb9b2699e414cf80730d290aba981dcd4898f84f Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2586069 Reviewed-by: Scott Collyer <scollyer@chromium.org>
Diffstat (limited to 'driver/als_bh1730.h')
-rw-r--r--driver/als_bh1730.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/driver/als_bh1730.h b/driver/als_bh1730.h
index d0205033e4..f49afac76f 100644
--- a/driver/als_bh1730.h
+++ b/driver/als_bh1730.h
@@ -58,6 +58,12 @@
/* default Itime is about 10Hz */
#define BH1730_10000_MHZ (10*1000)
+#define BH1730_MAX_FREQ BH1730_10000_MHZ
+/*
+ * 10Hz is too fast for the AP: allow the AP query data less often, the EC will
+ * downsample.
+ */
+#define BH1730_MIN_FREQ (BH1730_MAX_FREQ / 100)
/*
* Use default lux calculation formula parameters if board specific