Thread (10 messages) 10 messages, 4 authors, 2018-09-18
STALE2845d
Revisions (2)
  1. rfc [diff vs current]
  2. v1 current

[PATCH V1 2/3] Documentation: sdhci-msm: Add entries for passing load values

From: Vijay Viswanath <hidden>
Date: 2018-07-20 10:46:38
Also in: linux-arm-msm, linux-mmc, lkml
Subsystem: multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers: Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

The load a particular sdhc controller should request from a regulator
is device specific and hence each device should individually vote for
the required load.

Signed-off-by: Vijay Viswanath <redacted>
---
 Documentation/devicetree/bindings/mmc/sdhci-msm.txt | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
index 502b3b8..ee34f28 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
@@ -26,6 +26,11 @@ Required properties:
 	"cal"	- reference clock for RCLK delay calibration (optional)
 	"sleep"	- sleep clock for RCLK delay calibration (optional)
 
+Optional properties:
+- <supply>-current-level - specifies load levels for supply during BUS_ON
+			and BUS_OFF states in power irq. Should be specified in
+			pairs (lpm, hpm), for BUS_OFF and BUS_ON respectively.
+			Units uA.
 Example:
 
 	sdhc_1: sdhci@f9824900 {
@@ -37,6 +42,7 @@ Example:
 
 		vmmc-supply = <&pm8941_l20>;
 		vqmmc-supply = <&pm8941_s3>;
+		vqmmc-current-level = <200 22000>;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data>;
-- 
 Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
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