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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-01 20:49:11 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-06-01 20:49:11 +0300 |
commit | 8eca6b0a647aabea3d1d2907dd6245fc436f98e7 (patch) | |
tree | 2741247faff78d81fca6d7337a679c210a7e5a89 /Documentation/devicetree/bindings/pwm | |
parent | 68e6134bb70ab20e9f7c36c1ae7dc96b8ed778ae (diff) | |
parent | 3d593b6e80ad2c911b5645af28d83eabb96e7c1b (diff) | |
download | linux-8eca6b0a647aabea3d1d2907dd6245fc436f98e7.tar.xz |
Merge tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"Quite a large number of conversions this time around, courtesy of Uwe
who has been working tirelessly on these. No drivers of the legacy API
are left at this point, so as a next step the old API can be removed.
Support is added for a few new devices such as the Xilinx AXI timer-
based PWMs and the PWM IP found on Sunplus SoCs.
Other than that, there's a number of fixes, cleanups and optimizations"
* tag 'pwm/for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (43 commits)
pwm: pwm-cros-ec: Add channel type support
dt-bindings: google,cros-ec-pwm: Add the new -type compatible
dt-bindings: Add mfd/cros_ec definitions
pwm: Document that the pinstate of a disabled PWM isn't reliable
pwm: twl-led: Implement .apply() callback
pwm: lpc18xx: Implement .apply() callback
pwm: mediatek: Implement .apply() callback
pwm: lpc32xx: Implement .apply() callback
pwm: tegra: Implement .apply() callback
pwm: stmpe: Implement .apply() callback
pwm: sti: Implement .apply() callback
pwm: pwm-mediatek: Add support for MediaTek Helio X10 MT6795
dt-bindings: pwm: pwm-mediatek: Add documentation for MT6795 SoC
pwm: tegra: Optimize period calculation
pwm: renesas-tpu: Improve precision of period and duty_cycle calculation
pwm: renesas-tpu: Improve maths to compute register settings
pwm: renesas-tpu: Rename variables to match the usual naming
pwm: renesas-tpu: Implement .apply() callback
pwm: renesas-tpu: Make use of devm functions
pwm: renesas-tpu: Make use of dev_err_probe()
...
Diffstat (limited to 'Documentation/devicetree/bindings/pwm')
7 files changed, 173 insertions, 81 deletions
diff --git a/Documentation/devicetree/bindings/pwm/atmel,at91sam-pwm.yaml b/Documentation/devicetree/bindings/pwm/atmel,at91sam-pwm.yaml new file mode 100644 index 000000000000..ab45df80345d --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/atmel,at91sam-pwm.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/atmel,at91sam-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel/Microchip PWM controller + +maintainers: + - Claudiu Beznea <claudiu.beznea@microchip.com> + +allOf: + - $ref: "pwm.yaml#" + +properties: + compatible: + oneOf: + - items: + - enum: + - atmel,at91sam9rl-pwm + - atmel,sama5d3-pwm + - atmel,sama5d2-pwm + - microchip,sam9x60-pwm + - items: + - const: microchip,sama7g5-pwm + - const: atmel,sama5d2-pwm + + reg: + maxItems: 1 + + "#pwm-cells": + const: 3 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + pwm0: pwm@f8034000 { + compatible = "atmel,at91sam9rl-pwm"; + reg = <0xf8034000 0x400>; + #pwm-cells = <3>; + }; diff --git a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-pwm.txt deleted file mode 100644 index fbb5325be1f0..000000000000 --- a/Documentation/devicetree/bindings/pwm/atmel-pwm.txt +++ /dev/null @@ -1,35 +0,0 @@ -Atmel PWM controller - -Required properties: - - compatible: should be one of: - - "atmel,at91sam9rl-pwm" - - "atmel,sama5d3-pwm" - - "atmel,sama5d2-pwm" - - "microchip,sam9x60-pwm" - - reg: physical base address and length of the controller's registers - - #pwm-cells: Should be 3. See pwm.yaml in this directory for a - description of the cells format. - -Example: - - pwm0: pwm@f8034000 { - compatible = "atmel,at91sam9rl-pwm"; - reg = <0xf8034000 0x400>; - #pwm-cells = <3>; - }; - - pwmleds { - compatible = "pwm-leds"; - - d1 { - label = "d1"; - pwms = <&pwm0 3 5000 0> - max-brightness = <255>; - }; - - d2 { - label = "d2"; - pwms = <&pwm0 1 5000 1> - max-brightness = <255>; - }; - }; diff --git a/Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml b/Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml index 7ab6912a845f..c8577bdf6c94 100644 --- a/Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml +++ b/Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml @@ -21,7 +21,14 @@ allOf: properties: compatible: - const: google,cros-ec-pwm + oneOf: + - description: PWM controlled using EC_PWM_TYPE_GENERIC channels. + items: + - const: google,cros-ec-pwm + - description: PWM controlled using CROS_EC_PWM_DT_<...> types. + items: + - const: google,cros-ec-pwm-type + "#pwm-cells": description: The cell specifies the PWM index. const: 1 diff --git a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml new file mode 100644 index 000000000000..e4fe2d1bfef5 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/mediatek,pwm-disp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek DISP_PWM Controller Device Tree Bindings + +maintainers: + - Jitao Shi <jitao.shi@mediatek.com> + - Xinlei Lee <xinlei.lee@mediatek.com> + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + oneOf: + - enum: + - mediatek,mt2701-disp-pwm + - mediatek,mt6595-disp-pwm + - mediatek,mt8173-disp-pwm + - mediatek,mt8183-disp-pwm + - items: + - const: mediatek,mt8167-disp-pwm + - const: mediatek,mt8173-disp-pwm + - items: + - enum: + - mediatek,mt8186-disp-pwm + - mediatek,mt8192-disp-pwm + - mediatek,mt8195-disp-pwm + - const: mediatek,mt8183-disp-pwm + + reg: + maxItems: 1 + + "#pwm-cells": + const: 2 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Main Clock + - description: Mm Clock + + clock-names: + items: + - const: main + - const: mm + +required: + - compatible + - reg + - "#pwm-cells" + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/mt8173-clk.h> + #include <dt-bindings/interrupt-controller/irq.h> + + pwm0: pwm@1401e000 { + compatible = "mediatek,mt8173-disp-pwm"; + reg = <0x1401e000 0x1000>; + #pwm-cells = <2>; + clocks = <&mmsys CLK_MM_DISP_PWM026M>, + <&mmsys CLK_MM_DISP_PWM0MM>; + clock-names = "main", "mm"; + }; diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt index 25ed214473d7..033d1fc0f405 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt @@ -3,6 +3,7 @@ MediaTek PWM controller Required properties: - compatible: should be "mediatek,<name>-pwm": - "mediatek,mt2712-pwm": found on mt2712 SoC. + - "mediatek,mt6795-pwm": found on mt6795 SoC. - "mediatek,mt7622-pwm": found on mt7622 SoC. - "mediatek,mt7623-pwm": found on mt7623 SoC. - "mediatek,mt7628-pwm": found on mt7628 SoC. diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt deleted file mode 100644 index 691e58b6c223..000000000000 --- a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt +++ /dev/null @@ -1,45 +0,0 @@ -MediaTek display PWM controller - -Required properties: - - compatible: should be "mediatek,<name>-disp-pwm": - - "mediatek,mt2701-disp-pwm": found on mt2701 SoC. - - "mediatek,mt6595-disp-pwm": found on mt6595 SoC. - - "mediatek,mt8167-disp-pwm", "mediatek,mt8173-disp-pwm": found on mt8167 SoC. - - "mediatek,mt8173-disp-pwm": found on mt8173 SoC. - - "mediatek,mt8183-disp-pwm": found on mt8183 SoC.$ - - reg: physical base address and length of the controller's registers. - - #pwm-cells: must be 2. See pwm.yaml in this directory for a description of - the cell format. - - clocks: phandle and clock specifier of the PWM reference clock. - - clock-names: must contain the following: - - "main": clock used to generate PWM signals. - - "mm": sync signals from the modules of mmsys. - - pinctrl-names: Must contain a "default" entry. - - pinctrl-0: One property must exist for each entry in pinctrl-names. - See pinctrl/pinctrl-bindings.txt for details of the property values. - -Example: - pwm0: pwm@1401e000 { - compatible = "mediatek,mt8173-disp-pwm", - "mediatek,mt6595-disp-pwm"; - reg = <0 0x1401e000 0 0x1000>; - #pwm-cells = <2>; - clocks = <&mmsys CLK_MM_DISP_PWM026M>, - <&mmsys CLK_MM_DISP_PWM0MM>; - clock-names = "main", "mm"; - pinctrl-names = "default"; - pinctrl-0 = <&disp_pwm0_pins>; - }; - - backlight_lcd: backlight_lcd { - compatible = "pwm-backlight"; - pwms = <&pwm0 0 1000000>; - brightness-levels = < - 0 16 32 48 64 80 96 112 - 128 144 160 176 192 208 224 240 - 255 - >; - default-brightness-level = <9>; - power-supply = <&mt6397_vio18_reg>; - enable-gpios = <&pio 95 GPIO_ACTIVE_HIGH>; - }; diff --git a/Documentation/devicetree/bindings/pwm/sunplus,sp7021-pwm.yaml b/Documentation/devicetree/bindings/pwm/sunplus,sp7021-pwm.yaml new file mode 100644 index 000000000000..d4fc9e8db1d1 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/sunplus,sp7021-pwm.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) Sunplus Co., Ltd. 2021 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/sunplus,sp7021-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sunplus SoC SP7021 PWM Controller + +maintainers: + - Hammer Hsieh <hammerh0314@gmail.com> + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + const: sunplus,sp7021-pwm + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + '#pwm-cells': + const: 2 + +unevaluatedProperties: false + +required: + - reg + - clocks + +examples: + - | + pwm: pwm@9c007a00 { + compatible = "sunplus,sp7021-pwm"; + reg = <0x9c007a00 0x80>; + clocks = <&clkc 0xa2>; + #pwm-cells = <2>; + }; |