On 2020-09-13 02:35, Avri Altman wrote:
UFS's specifications supports a range of Vcc operating
voltage levels. Add documentation for the UFS's Vcc voltage
levels setting.
Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx>
Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
Signed-off-by: Bao D. Nguyen <nguyenb@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
index 415ccdd..7257b32 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -23,6 +23,8 @@ Optional properties:
with "phys" attribute, provides phandle to
UFS PHY node
- vdd-hba-supply : phandle to UFS host controller supply
regulator node
- vcc-supply : phandle to VCC supply regulator node
+- vcc-voltage-level : specifies voltage levels for VCC supply.
For ufs3.1+ devices
Thanks for the comments, Avri.
I am not clear what this comment means. Could you please clarify?
+ Should be specified in pairs (min, max),
units uV.
- vccq-supply : phandle to VCCQ supply regulator node
- vccq2-supply : phandle to VCCQ2 supply regulator node
- vcc-supply-1p8 : For embedded UFS devices, valid VCC range
is 1.7-1.95V
--
Why are you removing all other docs?
They are still relevant for non ufs3.1 devices.
I did not remove anything. You may be confused by the "-" used as
listing in the original document.
