summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/scsi/hisilicon-sas.txt
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2018-05-08 08:14:56 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2018-05-08 08:14:56 +0200
commit6b85c20d46812bdbc062b863261c3e5100e30556 (patch)
treee067c9889eaf55d5e793b05a14000276f2669e9f /dts/Bindings/scsi/hisilicon-sas.txt
parent9d8c00bdf7c1e8b614a797f0a15fa45bf6387224 (diff)
downloadbarebox-6b85c20d46812bdbc062b863261c3e5100e30556.tar.gz
barebox-6b85c20d46812bdbc062b863261c3e5100e30556.tar.xz
dts: update to v4.17-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/scsi/hisilicon-sas.txt')
-rw-r--r--dts/Bindings/scsi/hisilicon-sas.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/dts/Bindings/scsi/hisilicon-sas.txt b/dts/Bindings/scsi/hisilicon-sas.txt
index df3bef7998..8c6659ed2c 100644
--- a/dts/Bindings/scsi/hisilicon-sas.txt
+++ b/dts/Bindings/scsi/hisilicon-sas.txt
@@ -53,6 +53,13 @@ Main node required properties:
Optional main node properties:
- hip06-sas-v2-quirk-amt : when set, indicates that the v2 controller has the
"am-max-transmissions" limitation.
+ - hisilicon,signal-attenuation : array of 3 32-bit values, containing de-emphasis,
+ preshoot, and boost attenuation readings for the board. They
+ are used to describe the signal attenuation of the board. These
+ values' range is 7600 to 12400, and used to represent -24dB to
+ 24dB.
+ The formula is "y = (x-10000)/10000". For example, 10478
+ means 4.78dB.
Example:
sas0: sas@c1000000 {