[PATCH RESEND 4/7] dt-bindings: mfd: cirrus,cs40l26: Support for CS40L26

[Fred Treven]

Introduce required basic devicetree parameters for the
initial commit of CS40L26.

Signed-off-by: Fred Treven <ftreven@xxxxxxxxxxxxxxxxxxxxx>
---
 .../bindings/mfd/cirrus,cs40l26.yaml          | 81 +++++++++++++++++++
 MAINTAINERS                                   |  4 +-
 2 files changed, 83 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mfd/cirrus,cs40l26.yaml

diff --git a/Documentation/devicetree/bindings/mfd/cirrus,cs40l26.yaml b/Documentation/devicetree/bindings/mfd/cirrus,cs40l26.yaml
new file mode 100644
index 000000000000..a3cccb1a2d92
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/cirrus,cs40l26.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/cirrus,cs40l26.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS40L26 Boosted Haptic Amplifier
+
+maintainers:
+  - Fred Treven <ftreven@xxxxxxxxxxxxxxxxxxxxx>
+  - patches@xxxxxxxxxxxxxxxxxxxxx
+
+description:
+  CS40L26 is a Boosted Haptic Driver with Integrated DSP, Waveform Memory,
+  Advanced Closed Loop Algorithms, and LRA protection
+
+properties:
+  compatible:
+    enum:
+      - cirrus,cs40l26a
+      - cirrus,cs40l27b
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  va-supply:
+    description: Regulator for VA analog voltage
+
+  vp-supply:
+    description: Regulator for VP voltage
+
+  cirrus,bst-ipk-microamp:
+    description:
+      Maximum current that can be drawn by the device's boost converter.
+    multipleOf: 50000
+    minimum: 1600000
+    maximum: 4800000
+    default: 4500000
+
+  cirrus,bst-ctl-microvolt:
+    description: Maximum target voltage to which DSP may increase the VBST supply.
+    multipleOf: 50000
+    minimum: 2550000
+    maximum: 11000000
+    default: 11000000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - reset-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      haptic-driver@58 {
+        compatible = "cirrus,cs40l26a";
+        reg = <0x58>;
+        interrupt-parent = <&gpio>;
+        interrupts = <57 IRQ_TYPE_LEVEL_LOW>;
+        reset-gpios = <&gpio 54 GPIO_ACTIVE_LOW>;
+        va-supply = <&vreg>;
+        vp-supply = <&vreg>;
+        cirrus,bst-ctl-microvolt = <2600000>;
+        cirrus,bst-ipk-microamp = <1650000>;
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index bc8ce7af3303..9c4105bf0a32 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5546,11 +5546,11 @@ F:	sound/soc/codecs/cs*
 
 CIRRUS LOGIC HAPTIC DRIVERS
 M:	James Ogletree <jogletre@xxxxxxxxxxxxxxxxxxxxx>
-M:	Fred Treven <fred.treven@xxxxxxxxxx>
+M:	Fred Treven <ftreven@xxxxxxxxxxxxxxxxxxxxx>
 M:	Ben Bright <ben.bright@xxxxxxxxxx>
 L:	patches@xxxxxxxxxxxxxxxxxxxxx
 S:	Supported
-F:	Documentation/devicetree/bindings/input/cirrus,cs40l50.yaml
+F:	Documentation/devicetree/bindings/input/cirrus,cs40l*
 F:	drivers/input/misc/cs40l*
 F:	drivers/mfd/cs40l*
 F:	include/linux/mfd/cs40l*
-- 
2.34.1