linux-kernel - [PATCH V2 2/3] dt-bindings: mmc: sdhci-msm: Add entries for passing load values

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Message-Id: <1537424558-17989-3-git-send-email-vbadigan@codeaurora.org>
Date:   Thu, 20 Sep 2018 11:52:37 +0530
From:   Veerabhadrarao Badiganti <vbadigan@...eaurora.org>
To:     adrian.hunter@...el.com, ulf.hansson@...aro.org, robh+dt@...nel.org
Cc:     linux-mmc@...r.kernel.org, asutoshd@...eaurora.org,
        riteshh@...eaurora.org, stummala@...eaurora.org,
        sayalil@...eaurora.org, evgreen@...omium.org, dianders@...gle.com,
        Vijay Viswanath <vviswana@...eaurora.org>,
        Veerabhadrarao Badiganti <vbadigan@...eaurora.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH V2 2/3] dt-bindings: mmc: sdhci-msm: Add entries for passing load values

From: Vijay Viswanath <vviswana@...eaurora.org>

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 <vviswana@...eaurora.org>
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@...eaurora.org>
---
 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..3720385 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:
+- qcom,<supply>-current-level-microamp - 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@...24900 {
@@ -37,6 +42,7 @@ Example:
 
 		vmmc-supply = <&pm8941_l20>;
 		vqmmc-supply = <&pm8941_s3>;
+		qcom,vqmmc-current-level-microamp = <200 22000>;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data>;
-- 
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