From: "Nícolas F. R. A. Prado" <nfraprado@protonmail.com>
To: Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Andy Gross <agross@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: linux-leds@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
Brian Masney <masneyb@onstation.org>, Luca Weiss <luca@z3ntu.xyz>,
Russell King <linux@armlinux.org.uk>,
Georgi Djakov <georgi.djakov@linaro.org>,
linux-kernel@vger.kernel.org,
~postmarketos/upstreaming@lists.sr.ht,
lkcamp@lists.libreplanetbr.org, andrealmeid@collabora.com
Subject: [PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash
Date: Tue, 26 Jan 2021 14:04:08 +0000 [thread overview]
Message-ID: <20210126140240.1517044-2-nfraprado@protonmail.com> (raw)
In-Reply-To: <20210126140240.1517044-1-nfraprado@protonmail.com>
Add devicetree binding for QCOM SPMI Flash LEDs, which are part of
PM8941, and are used both as lantern and camera flash.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@protonmail.com>
---
Changes in v2:
- Add this commit
.../bindings/leds/leds-qcom-spmi-flash.yaml | 94 +++++++++++++++++++
.../dt-bindings/leds/leds-qcom-spmi-flash.h | 15 +++
2 files changed, 109 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml
create mode 100644 include/dt-bindings/leds/leds-qcom-spmi-flash.h
diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml
new file mode 100644
index 000000000000..169716e14f67
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-qcom-spmi-flash.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SPMI Flash LEDs
+
+maintainers:
+ - Nícolas F. R. A. Prado <nfraprado@protonmail.com>
+
+description: |
+ The Qualcomm SPMI Flash LEDs are part of Qualcomm PMICs and are used primarily
+ as a camera or video flash. They can also be used as a lantern when on torch
+ mode.
+ The PMIC is connected to Host processor via SPMI bus.
+
+properties:
+ compatible:
+ const: qcom,spmi-flash
+
+ reg:
+ maxItems: 1
+
+ flash-boost-supply:
+ description: SMBB regulator for LED flash mode
+
+ torch-boost-supply:
+ description: SMBB regulator for LED torch mode
+
+patternProperties:
+ "^led[0-1]$":
+ type: object
+ $ref: common.yaml#
+
+ properties:
+ qcom,clamp-curr:
+ description: current to clamp at, in uA
+ $ref: /schemas/types.yaml#definitions/uint32
+
+ qcom,headroom:
+ description: |
+ headroom to use. Use one of QCOM_SPMI_FLASH_HEADROOM_* defined in
+ include/dt-bindings/leds/leds-qcom-spmi-flash.h
+ $ref: /schemas/types.yaml#definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ qcom,startup-dly:
+ description: |
+ delay before flashing. Use one of QCOM_SPMI_FLASH_STARTUP_DLY_*
+ defined in include/dt-bindings/leds/leds-qcom-spmi-flash.h
+ $ref: /schemas/types.yaml#definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ qcom,safety-timer:
+ description: include for safety timer use, otherwise watchdog timer will be used
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - flash-boost-supply
+ - torch-boost-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+ #include <dt-bindings/leds/leds-qcom-spmi-flash.h>
+
+ qcom,leds@d300 {
+ compatible = "qcom,spmi-flash";
+ reg = <0xd300 0x100>;
+ flash-boost-supply = <&pm8941_5vs1>;
+ torch-boost-supply = <&pm8941_5v>;
+
+ led0 {
+ led-sources = <0>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <1000000>;
+ flash-max-timeout-us = <1280000>;
+ default-state = "off";
+ qcom,clamp-curr = <200000>;
+ qcom,headroom = <QCOM_SPMI_FLASH_HEADROOM_500MV>;
+ qcom,startup-dly = <QCOM_SPMI_FLASH_STARTUP_DLY_128US>;
+ qcom,safety-timer;
+ };
+ };
+...
diff --git a/include/dt-bindings/leds/leds-qcom-spmi-flash.h b/include/dt-bindings/leds/leds-qcom-spmi-flash.h
new file mode 100644
index 000000000000..8bd54a8e831d
--- /dev/null
+++ b/include/dt-bindings/leds/leds-qcom-spmi-flash.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H
+#define _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H
+
+#define QCOM_SPMI_FLASH_HEADROOM_250MV 0
+#define QCOM_SPMI_FLASH_HEADROOM_300MV 1
+#define QCOM_SPMI_FLASH_HEADROOM_400MV 2
+#define QCOM_SPMI_FLASH_HEADROOM_500MV 3
+
+#define QCOM_SPMI_FLASH_STARTUP_DLY_10US 0
+#define QCOM_SPMI_FLASH_STARTUP_DLY_32US 1
+#define QCOM_SPMI_FLASH_STARTUP_DLY_64US 2
+#define QCOM_SPMI_FLASH_STARTUP_DLY_128US 3
+
+#endif
--
2.30.0
next prev parent reply other threads:[~2021-01-26 14:05 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 14:03 [PATCH v2 0/4] Add support for QCOM SPMI Flash LEDs Nícolas F. R. A. Prado
2021-01-26 14:04 ` Nícolas F. R. A. Prado [this message]
2021-01-27 14:00 ` [PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash Rob Herring
2021-01-27 14:28 ` Bjorn Andersson
2021-01-30 20:32 ` Jacek Anaszewski
2021-01-26 14:05 ` [PATCH v2 2/4] leds: Add driver for QCOM SPMI Flash LEDs Nícolas F. R. A. Prado
2021-01-27 4:23 ` Bjorn Andersson
2021-01-30 20:37 ` Jacek Anaszewski
2021-02-19 11:02 ` Pavel Machek
2021-02-21 11:28 ` Jacek Anaszewski
2021-04-25 20:19 ` Pavel Machek
2021-02-19 11:01 ` Pavel Machek
2021-01-26 14:06 ` [PATCH v2 3/4] ARM: qcom_defconfig: Enable " Nícolas F. R. A. Prado
2021-01-27 14:29 ` Bjorn Andersson
2021-01-26 14:06 ` [PATCH v2 4/4] ARM: dts: qcom: pm8941: Add nodes for " Nícolas F. R. A. Prado
2021-01-27 14:32 ` Bjorn Andersson
2021-01-30 20:31 ` [PATCH v2 0/4] Add support " Jacek Anaszewski
2021-02-19 11:04 ` Pavel Machek
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