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Add DT bindings YAML schema for PWM fan controller of LGM SoC

PATCH Superseded Rahul Tanwar 1 participant 2 messages Sep 28, 2020 1 message not in the archive

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Device tree bindings PWM

v14 of 15 Superseded Latest is v15 →

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Rahul Tanwar

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PATCH v14 1/2 Add DT bindings YAML schema for PWM fan controller of LGM SoC

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Intel's LGM(Lightning Mountain) SoC contains a PWM fan controller which is only used to control the fan attached to the system. This PWM controller does not have any other consumer other than fan. Add DT bindings documentation for this PWM fan controller.

Signed-off-by Rahul Tanwar <[email protected]>
Reviewed-by Rob Herring <[email protected]>
---
 .../devicetree/bindings/pwm/intel,lgm-pwm.yaml     | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml
Documentation/devicetree/bindings/pwm/intel,lgm-pwm.yaml new file +44 -0
new file mode 100644
index 000000000000..11a606536169
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/intel,lgm-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LGM SoC PWM fan controller
+
+maintainers:
+  - Rahul Tanwar <[email protected]>
+
+properties:
+  compatible:
+    const: intel,lgm-pwm
+
+  reg:
+    maxItems: 1
+
+  "#pwm-cells":
+    const: 2
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    pwm: pwm@e0d00000 {
+        compatible = "intel,lgm-pwm";
+        reg = <0xe0d00000 0x30>;
+        #pwm-cells = <2>;
+        clocks = <&cgu0 126>;
+        resets = <&rcu0 0x30 21>;
+    };
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#2 lore raw

PATCH v14 2/2 Add PWM fan controller driver for LGM SoC

In reply to a message not in the archive

Intel Lightning Mountain(LGM) SoC contains a PWM fan controller. This PWM controller does not have any other consumer, it is a dedicated PWM controller for fan attached to the system. Add driver for this PWM fan controller.

Signed-off-by Rahul Tanwar <[email protected]>
Reviewed-by Andy Shevchenko <[email protected]>
---
 drivers/pwm/Kconfig         |  11 ++
 drivers/pwm/Makefile        |   1 +
 drivers/pwm/pwm-intel-lgm.c | 244 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 256 insertions(+)
 create mode 100644 drivers/pwm/pwm-intel-lgm.c
drivers/pwm/Kconfig +11 -0
index 7dbcf6973d33..4949c51fe90b 100644
@@ -232,6 +232,17 @@ config PWM_IMX_TPM
 	  To compile this driver as a module, choose M here: the module
 	  will be called pwm-imx-tpm.
 
+config PWM_INTEL_LGM
+	tristate "Intel LGM PWM support"
+	depends on HAS_IOMEM
+	depends on (OF && X86) || COMPILE_TEST
+	select REGMAP_MMIO
+	help
+	  Generic PWM fan controller driver for LGM SoC.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called pwm-intel-lgm.
+
 config PWM_IQS620A
 	tristate "Azoteq IQS620A PWM support"
 	depends on MFD_IQS62X || COMPILE_TEST
drivers/pwm/Makefile +1 -0
index 2c2ba0a03557..e9431b151694 100644
@@ -20,6 +20,7 @@ obj-$(CONFIG_PWM_IMG)		+= pwm-img.o
 obj-$(CONFIG_PWM_IMX1)		+= pwm-imx1.o
 obj-$(CONFIG_PWM_IMX27)		+= pwm-imx27.o
 obj-$(CONFIG_PWM_IMX_TPM)	+= pwm-imx-tpm.o
+obj-$(CONFIG_PWM_INTEL_LGM)	+= pwm-intel-lgm.o
 obj-$(CONFIG_PWM_IQS620A)	+= pwm-iqs620a.o
 obj-$(CONFIG_PWM_JZ4740)	+= pwm-jz4740.o
 obj-$(CONFIG_PWM_LP3943)	+= pwm-lp3943.o
drivers/pwm/pwm-intel-lgm.c new file +244 -0

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