Thread (14 messages) read the whole thread 14 messages, 3 authors, 2019-01-22
STALE2749d

Revision v1 of 5 in this series.

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

[PATCH v1 3/8] arm64: dts: sdm845: Add UFS PHY reset

From: Evan Green <hidden>
Date: 2019-01-11 23:02:04
Also in: linux-arm-msm, lkml
Subsystem: arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers: Bjorn Andersson, Konrad Dybcio, Linus Torvalds

Wire up the reset controller in the Qcom UFS controller for the PHY.
This will be used to toggle PHY reset during initialization of the PHY.

Signed-off-by: Evan Green <redacted>
---
This commit is based atop the series at [1]. Patches 1 and 2 of that
series have landed, but 3, 4, and 5 are still outstanding.

[1] https://lore.kernel.org/lkml/20181210192826.241350-1-evgreen@chromium.org/ (local)

 arch/arm64/boot/dts/qcom/sdm845.dtsi | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index b29332b265d9e..029ab66405cf4 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -990,6 +990,7 @@
 			phy-names = "ufsphy";
 			lanes-per-direction = <2>;
 			power-domains = <&gcc UFS_PHY_GDSC>;
+			#reset-cells = <1>;
 
 			clock-names =
 				"core_clk",
@@ -1033,6 +1034,8 @@
 			clocks = <&gcc GCC_UFS_MEM_CLKREF_CLK>,
 				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
 
+			resets = <&ufs_mem_hc 0>;
+			reset-names = "ufsphy";
 			status = "disabled";
 
 			ufs_mem_phy_lanes: lanes@1d87400 {
-- 
2.18.1
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