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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <treding@nvidia.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Sebastian Reichel <sre@kernel.org>,
	Peter Chen <peter.chen@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Felipe Balbi <balbi@kernel.org>, David Heidelberg <david@ixit.cz>
Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-tegra@vger.kernel.org
Subject: [PATCH v5 06/12] dt-bindings: power: supply: smb347-charger: Document USB VBUS regulator
Date: Sat, 17 Jul 2021 21:21:28 +0300	[thread overview]
Message-ID: <20210717182134.30262-7-digetx@gmail.com> (raw)
In-Reply-To: <20210717182134.30262-1-digetx@gmail.com>

SMB347 can supply power to USB VBUS, which is required by OTG-cable
devices that want to switch USB port into the host mode. Add USB VBUS
regulator properties.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 .../power/supply/summit,smb347-charger.yaml   | 30 +++++++++++++++++++
 .../dt-bindings/power/summit,smb347-charger.h |  4 +++
 2 files changed, 34 insertions(+)

diff --git a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
index 983fc215c1e5..20862cdfc116 100644
--- a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
@@ -73,6 +73,26 @@ properties:
       - 1 # SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT Current compensation
       - 2 # SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE Voltage compensation
 
+  summit,inok-polarity:
+    description: |
+      Polarity of INOK signal indicating presence of external power supply.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 0 # SMB3XX_SYSOK_INOK_ACTIVE_LOW
+      - 1 # SMB3XX_SYSOK_INOK_ACTIVE_HIGH
+
+  usb-vbus:
+    $ref: "../../regulator/regulator.yaml#"
+    type: object
+
+    properties:
+      summit,needs-inok-toggle:
+        type: boolean
+        description: INOK signal is fixed and polarity needs to be toggled
+                     in order to enable/disable output mode.
+
+    unevaluatedProperties: false
+
 allOf:
   - if:
       properties:
@@ -134,6 +154,7 @@ examples:
             reg = <0x7f>;
 
             summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH>;
+            summit,inok-polarity = <SMB3XX_SYSOK_INOK_ACTIVE_LOW>;
             summit,chip-temperature-threshold-celsius = <110>;
             summit,mains-current-limit-microamp = <2000000>;
             summit,usb-current-limit-microamp = <500000>;
@@ -141,6 +162,15 @@ examples:
             summit,enable-mains-charging;
 
             monitored-battery = <&battery>;
+
+            usb-vbus {
+                regulator-name = "usb_vbus";
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+                regulator-min-microamp = <750000>;
+                regulator-max-microamp = <750000>;
+                summit,needs-inok-toggle;
+            };
         };
     };
 
diff --git a/include/dt-bindings/power/summit,smb347-charger.h b/include/dt-bindings/power/summit,smb347-charger.h
index d918bf321a71..3205699b5e41 100644
--- a/include/dt-bindings/power/summit,smb347-charger.h
+++ b/include/dt-bindings/power/summit,smb347-charger.h
@@ -16,4 +16,8 @@
 #define SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW	1
 #define SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH	2
 
+/* Polarity of INOK signal */
+#define SMB3XX_SYSOK_INOK_ACTIVE_LOW		0
+#define SMB3XX_SYSOK_INOK_ACTIVE_HIGH		1
+
 #endif
-- 
2.32.0


  parent reply	other threads:[~2021-07-17 18:24 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-17 18:21 [PATCH v5 00/12] Add OTG mode support to Tegra USB PHY, SMB347 and Nexus 7 Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 01/12] dt-bindings: phy: tegra20-usb-phy: Convert to schema Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 02/12] dt-bindings: phy: tegra20-usb-phy: Document properties needed for OTG mode Dmitry Osipenko
2021-07-23 23:05   ` Rob Herring
2021-07-17 18:21 ` [PATCH v5 03/12] soc/tegra: pmc: Expose USB regmap to all SoCs Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 04/12] usb: phy: tegra: Support OTG mode programming Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 05/12] usb: otg-fsm: Fix hrtimer list corruption Dmitry Osipenko
2021-07-17 18:21 ` Dmitry Osipenko [this message]
2021-07-17 18:21 ` [PATCH v5 07/12] power: supply: smb347-charger: Make smb347_set_writable() IRQ-safe Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 08/12] power: supply: smb347-charger: Utilize generic regmap caching Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 09/12] power: supply: smb347-charger: Implement USB VBUS regulator Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 10/12] ARM: tegra: Add new properties to USB PHY device-tree nodes Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 11/12] ARM: tegra: nexus7: Enable USB OTG mode Dmitry Osipenko
2021-07-17 18:21 ` [PATCH v5 12/12] arm64: tegra132: Add new properties to USB PHY device-tree node Dmitry Osipenko
2021-07-30 17:37 ` [PATCH v5 00/12] Add OTG mode support to Tegra USB PHY, SMB347 and Nexus 7 Dmitry Osipenko
2021-07-30 18:30   ` Dmitry Osipenko

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