Thread (10 messages) read the whole thread 10 messages, 3 authors, 2019-02-01
STALE2735d

Revision v2 of 5 in this series.

Revisions (5)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]

[PATCH v2 1/9] dt-bindings: ufs: Add #reset-cells for Qualcomm controllers

From: Evan Green <hidden>
Date: 2019-01-23 22:12:08
Also in: lkml
Subsystem: open firmware and flattened device tree bindings, the rest, universal flash storage host controller driver · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

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

Signed-off-by: Evan Green <redacted>

---
Fixing up this aspect of it made me notice that this patch [1]
hasn't landed yet. It really ought to.

[1] https://lore.kernel.org/lkml/20181012213926.253765-1-dianders@chromium.org/T/#u (local)

Changes in v2: None

 Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
index 8cf59452c6756..e2460b666ae45 100644
--- a/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
+++ b/Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
@@ -47,6 +47,8 @@ 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.
 
@@ -76,4 +78,5 @@ Example:
 		reset-names = "rst";
 		phys = <&ufsphy1>;
 		phy-names = "ufsphy";
+		#reset-cells = <1>;
 	};
-- 
2.18.1
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