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Message-ID: <20210618175041.323495-2-caleb@connolly.tech>
Date: Fri, 18 Jun 2021 17:51:03 +0000
From: Caleb Connolly <caleb@...nolly.tech>
To: caleb@...nolly.tech, Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Rob Herring <robh+dt@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
linux-arm-msm@...r.kernel.org, jami.kettunen@...ainline.org,
jo@...amily.in, linux-input@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RESEND PATCH v2 1/6] dt-bindings: input: add Qualcomm SPMI haptics driver
Add bindings for qcom PMIC SPMI haptics driver.
Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
---
.../bindings/input/qcom,spmi-haptics.yaml | 128 ++++++++++++++++++
include/dt-bindings/input/qcom,spmi-haptics.h | 32 +++++
2 files changed, 160 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/qcom,spmi-haptics.yaml
create mode 100644 include/dt-bindings/input/qcom,spmi-haptics.h
diff --git a/Documentation/devicetree/bindings/input/qcom,spmi-haptics.yaml b/Documentation/devicetree/bindings/input/qcom,spmi-haptics.yaml
new file mode 100644
index 000000000000..8ef9b4ec3a07
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/qcom,spmi-haptics.yaml
@@ -0,0 +1,128 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2020 Unisoc Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/qcom,spmi-haptics.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies Inc PMI8998 spmi haptics
+
+maintainers:
+ - Caleb Connolly <caleb@...nolly.tech>
+
+description: |
+ Qualcomm SPMI haptics is a peripheral on some QTI PMICs. It supports linear resonant
+ actuators and eccentric rotating mass type haptics commonly found in mobile devices.
+ It supports multiple sources of wave data such as an internal buffer, direct play
+ (from kernel or userspace) as well as an audio output mode.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,pmi8998-haptics
+ - qcom,pmi8996-haptics
+ - qcom,pmi8941-haptics
+ - const: qcom,spmi-haptics
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: short circuit interrupt
+ - description: play interrupt
+
+ interrupt-names:
+ items:
+ - const: short
+ - const: play
+
+ qcom,actuator-type:
+ description: |
+ The type of actuator attached to the hardware.
+ Allowed values are,
+ 0 - HAP_TYPE_LRA
+ 1 - HAP_TYPE_ERM
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ default: 0
+
+ qcom,wave-shape:
+ description: |
+ Selects the wave shape to use.
+ Allowed values are,
+ 0 - HAP_WAVE_SINE
+ 1 - HAP_WAVE_SQUARE
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ default: 0
+
+ qcom,play-mode:
+ description: |
+ Selects the play mode to use.
+ Allowed values are,
+ 0 - HAP_PLAY_DIRECT
+ 1 - HAP_PLAY_BUFFER
+ 2 - HAP_PLAY_AUDIO
+ 3 - HAP_PLAY_PWM
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ default: 2
+
+ qcom,wave-play-rate-us:
+ description: |
+ Wave sample durection in microseconds, 1/f where f
+ is the resonant frequency of the actuator.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 20475
+
+ qcom,brake-pattern:
+ minItems: 4
+ maxItems: 4
+ description: |
+ The brake pattern are the strengths of the pattern
+ used to brake the haptics. Allowed values are,
+ 0 - 0V
+ 1 - Vmax/4
+ 2 - Vmax/2
+ 3 - Vmax
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ default: [0x3, 0x3, 0x2, 0x1]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - qcom,wave-play-rate-us
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/spmi/spmi.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/input/qcom,spmi-haptics.h>
+
+ pmi8998_lsid1: pmic@3 {
+ compatible = "qcom,pmi8998", "qcom,spmi-pmic";
+ reg = <0x3 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmi8998_haptics: haptics@...0 {
+ compatible = "qcom,pmi8998-haptics", "qcom,spmi-haptics";
+ reg = <0xc000>;
+
+ interrupts = <0x3 0xc0 0x0 IRQ_TYPE_EDGE_BOTH>,
+ <0x3 0xc0 0x1 IRQ_TYPE_EDGE_BOTH>;
+ interrupt-names = "short", "play";
+
+ qcom,wave-shape = <HAP_WAVE_SINE>;
+ qcom,play-mode = <HAP_PLAY_BUFFER>;
+ qcom,brake-pattern = <0x3 0x3 0x2 0x1>;
+
+ status = "disabled";
+ };
+ };
diff --git a/include/dt-bindings/input/qcom,spmi-haptics.h b/include/dt-bindings/input/qcom,spmi-haptics.h
new file mode 100644
index 000000000000..14a7e7d1471e
--- /dev/null
+++ b/include/dt-bindings/input/qcom,spmi-haptics.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * This header provides constants for pmi8998 SPMI haptics options.
+ */
+
+#ifndef _DT_BINDINGS_QCOM_PMIC_SPMI_HAPTICS_
+#define _DT_BINDINGS_QCOM_PMIC_SPMI_HAPTICS_
+
+// Actuator types
+#define HAP_TYPE_LRA 0
+#define HAP_TYPE_ERM 1
+
+// LRA Wave type
+#define HAP_WAVE_SINE 0
+#define HAP_WAVE_SQUARE 1
+
+// Play modes
+#define HAP_PLAY_DIRECT 0
+#define HAP_PLAY_BUFFER 1
+#define HAP_PLAY_AUDIO 2
+#define HAP_PLAY_PWM 3
+
+#define HAP_PLAY_MAX HAP_PLAY_PWM
+
+// Auto resonance type
+#define HAP_AUTO_RES_NONE 0
+#define HAP_AUTO_RES_ZXD 1
+#define HAP_AUTO_RES_QWD 2
+#define HAP_AUTO_RES_MAX_QWD 3
+#define HAP_AUTO_RES_ZXD_EOP 4
+
+#endif /* _DT_BINDINGS_QCOM_PMIC_SPMI_HAPTICS_ */
--
2.31.1
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