The Sophgo CV1800 chip provides a set of four independent
PWM channel outputs.
This series adds PWM controller support for Sophgo cv1800.
Changes since v1:
- drop full stop from subject
- re-order maintainers and description
- pass checkpatch.pl --strict
- fix naming errors
- add "Limitations" section
- use a driver specific prefix for all defines
- using bool instead u32 in cv1800_pwm_enable
- check and set state->polarity
- use mul_u64_u64_div_u64
- use clk_rate_exclusive_get(), balance with clk_rate_exclusive_put()
- using macro definitions instead of shift operations
- remove shift operation on 0
- use priv replace cv_pwm
- hardcode npwm
- set atomic to true
- remove MODULE_ALIAS
v1: https://lore.kernel.org/all/[email protected]/
Jingbao Qiu (2):
dt-bindings: pwm: sophgo: add pwm for Sophgo CV1800 series SoC
pwm: sophgo: add pwm support for Sophgo CV1800 SoC
.../bindings/pwm/sophgo,cv1800-pwm.yaml | 45 ++++
drivers/pwm/Kconfig | 10 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-cv1800.c | 248 ++++++++++++++++++
4 files changed, 304 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/sophgo,cv1800-pwm.yaml
create mode 100644 drivers/pwm/pwm-cv1800.c
base-commit: 7afc0e7f681e6efd6b826f003fc14c17b5093643
--
2.25.1
Add devicetree binding to describe the PWM for Sophgo CV1800 SoC.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Jingbao Qiu <[email protected]>
---
.../bindings/pwm/sophgo,cv1800-pwm.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/sophgo,cv1800-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/sophgo,cv1800-pwm.yaml b/Documentation/devicetree/bindings/pwm/sophgo,cv1800-pwm.yaml
new file mode 100644
index 000000000000..b5b819d780f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/sophgo,cv1800-pwm.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/sophgo,cv1800-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800 PWM controller
+
+maintainers:
+ - Jingbao Qiu <[email protected]>
+
+description:
+ The chip provides a set of four independent PWM channel outputs.
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ const: sophgo,cv1800-pwm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 3
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ pwm0: pwm@3060000 {
+ compatible = "sophgo,cv1800-pwm";
+ reg = <0x3060000 0x1000>;
+ clocks = <&clk 60>;
+ #pwm-cells = <3>;
+ };
--
2.25.1