openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

dt-bindings: ufs: Add #reset-cells for Qualcomm controllers 

Enable Qualcomm UFS controllers to expose the PHY reset via a reset
controller.

Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Evan Green 2019-03-21 10:17:53 -07:00 committed by Kishon Vijay Abraham I
parent 36077e16c0
commit 8de4acd397
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
View File

@ -50,6 +50,8 @@ Optional properties:
-lanes-per-direction : number of lanes available per direction - either 1 or 2.
Note that it is assume same number of lanes is used both
directions at once. If not specified, default is 2 lanes per direction.
- #reset-cells : Must be <1> for Qualcomm UFS controllers that expose
PHY reset from the UFS controller.
- resets : reset node register
- reset-names : describe reset node register, the "rst" corresponds to reset the whole UFS IP.
@ -79,4 +81,5 @@ Example:
reset-names = "rst";
phys = <&ufsphy1>;
phy-names = "ufsphy";
#reset-cells = <1>;
};