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dt-bindings: pwm: Add RZ/G2L GPT binding

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Add device tree bindings for the General PWM Timer (GPT).

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250226144531.176819-2-biju.das.jz@bp.renesas.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
This commit is contained in:
Biju Das 2025-02-26 14:45:20 +00:00 committed by Uwe Kleine-König
parent e463b05d10
commit 9549d22684
1 changed files with 378 additions and 0 deletions
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Documentation/devicetree/bindings/pwm/renesas,rzg2l-gpt.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pwm/renesas,rzg2l-gpt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas RZ/G2L General PWM Timer (GPT)
maintainers:
- Biju Das <biju.das.jz@bp.renesas.com>
description: |
RZ/G2L General PWM Timer (GPT) composed of 8 channels with 32-bit timer
(GPT32E). It supports the following functions
* 32 bits x 8 channels.
* Up-counting or down-counting (saw waves) or up/down-counting
(triangle waves) for each counter.
* Clock sources independently selectable for each channel.
* Two I/O pins per channel.
* Two output compare/input capture registers per channel.
* For the two output compare/input capture registers of each channel,
four registers are provided as buffer registers and are capable of
operating as comparison registers when buffering is not in use.
* In output compare operation, buffer switching can be at crests or
troughs, enabling the generation of laterally asymmetric PWM waveforms.
* Registers for setting up frame cycles in each channel (with capability
for generating interrupts at overflow or underflow)
* Generation of dead times in PWM operation.
* Synchronous starting, stopping and clearing counters for arbitrary
channels.
* Starting, stopping, clearing and up/down counters in response to input
level comparison.
* Starting, clearing, stopping and up/down counters in response to a
maximum of four external triggers.
* Output pin disable function by dead time error and detected
short-circuits between output pins.
* A/D converter start triggers can be generated (GPT32E0 to GPT32E3)
* Enables the noise filter for input capture and external trigger
operation.
The below pwm channels are supported.
pwm0 - GPT32E0.GTIOC0A channel
pwm1 - GPT32E0.GTIOC0B channel
pwm2 - GPT32E1.GTIOC1A channel
pwm3 - GPT32E1.GTIOC1B channel
pwm4 - GPT32E2.GTIOC2A channel
pwm5 - GPT32E2.GTIOC2B channel
pwm6 - GPT32E3.GTIOC3A channel
pwm7 - GPT32E3.GTIOC3B channel
pwm8 - GPT32E4.GTIOC4A channel
pwm9 - GPT32E4.GTIOC4B channel
pwm10 - GPT32E5.GTIOC5A channel
pwm11 - GPT32E5.GTIOC5B channel
pwm12 - GPT32E6.GTIOC6A channel
pwm13 - GPT32E6.GTIOC6B channel
pwm14 - GPT32E7.GTIOC7A channel
pwm15 - GPT32E7.GTIOC7B channel
properties:
compatible:
items:
- enum:
- renesas,r9a07g044-gpt # RZ/G2{L,LC}
- renesas,r9a07g054-gpt # RZ/V2L
- const: renesas,rzg2l-gpt
reg:
maxItems: 1
'#pwm-cells':
const: 3
interrupts:
items:
- description: GPT32E0.GTCCRA input capture/compare match
- description: GPT32E0.GTCCRB input capture/compare
- description: GPT32E0.GTCCRC compare match
- description: GPT32E0.GTCCRD compare match
- description: GPT32E0.GTCCRE compare match
- description: GPT32E0.GTCCRF compare match
- description: GPT32E0.GTADTRA compare match
- description: GPT32E0.GTADTRB compare match
- description: GPT32E0.GTCNT overflow/GTPR compare match
- description: GPT32E0.GTCNT underflow
- description: GPT32E1.GTCCRA input capture/compare match
- description: GPT32E1.GTCCRB input capture/compare
- description: GPT32E1.GTCCRC compare match
- description: GPT32E1.GTCCRD compare match
- description: GPT32E1.GTCCRE compare match
- description: GPT32E1.GTCCRF compare match
- description: GPT32E1.GTADTRA compare match
- description: GPT32E1.GTADTRB compare match
- description: GPT32E1.GTCNT overflow/GTPR compare match
- description: GPT32E1.GTCNT underflow
- description: GPT32E2.GTCCRA input capture/compare match
- description: GPT32E2.GTCCRB input capture/compare
- description: GPT32E2.GTCCRC compare match
- description: GPT32E2.GTCCRD compare match
- description: GPT32E2.GTCCRE compare match
- description: GPT32E2.GTCCRF compare match
- description: GPT32E2.GTADTRA compare match
- description: GPT32E2.GTADTRB compare match
- description: GPT32E2.GTCNT overflow/GTPR compare match
- description: GPT32E2.GTCNT underflow
- description: GPT32E3.GTCCRA input capture/compare match
- description: GPT32E3.GTCCRB input capture/compare
- description: GPT32E3.GTCCRC compare match
- description: GPT32E3.GTCCRD compare match
- description: GPT32E3.GTCCRE compare match
- description: GPT32E3.GTCCRF compare match
- description: GPT32E3.GTADTRA compare match
- description: GPT32E3.GTADTRB compare match
- description: GPT32E3.GTCNT overflow/GTPR compare match
- description: GPT32E3.GTCNT underflow
- description: GPT32E4.GTCCRA input capture/compare match
- description: GPT32E4.GTCCRB input capture/compare
- description: GPT32E4.GTCCRC compare match
- description: GPT32E4.GTCCRD compare match
- description: GPT32E4.GTCCRE compare match
- description: GPT32E4.GTCCRF compare match
- description: GPT32E4.GTADTRA compare match
- description: GPT32E4.GTADTRB compare match
- description: GPT32E4.GTCNT overflow/GTPR compare match
- description: GPT32E4.GTCNT underflow
- description: GPT32E5.GTCCRA input capture/compare match
- description: GPT32E5.GTCCRB input capture/compare
- description: GPT32E5.GTCCRC compare match
- description: GPT32E5.GTCCRD compare match
- description: GPT32E5.GTCCRE compare match
- description: GPT32E5.GTCCRF compare match
- description: GPT32E5.GTADTRA compare match
- description: GPT32E5.GTADTRB compare match
- description: GPT32E5.GTCNT overflow/GTPR compare match
- description: GPT32E5.GTCNT underflow
- description: GPT32E6.GTCCRA input capture/compare match
- description: GPT32E6.GTCCRB input capture/compare
- description: GPT32E6.GTCCRC compare match
- description: GPT32E6.GTCCRD compare match
- description: GPT32E6.GTCCRE compare match
- description: GPT32E6.GTCCRF compare match
- description: GPT32E6.GTADTRA compare match
- description: GPT32E6.GTADTRB compare match
- description: GPT32E6.GTCNT overflow/GTPR compare match
- description: GPT32E6.GTCNT underflow
- description: GPT32E7.GTCCRA input capture/compare match
- description: GPT32E7.GTCCRB input capture/compare
- description: GPT32E7.GTCCRC compare match
- description: GPT32E7.GTCCRD compare match
- description: GPT32E7.GTCCRE compare match
- description: GPT32E7.GTCCRF compare match
- description: GPT32E7.GTADTRA compare match
- description: GPT32E7.GTADTRB compare match
- description: GPT32E7.GTCNT overflow/GTPR compare match
- description: GPT32E7.GTCNT underflow
interrupt-names:
items:
- const: ccmpa0
- const: ccmpb0
- const: cmpc0
- const: cmpd0
- const: cmpe0
- const: cmpf0
- const: adtrga0
- const: adtrgb0
- const: ovf0
- const: unf0
- const: ccmpa1
- const: ccmpb1
- const: cmpc1
- const: cmpd1
- const: cmpe1
- const: cmpf1
- const: adtrga1
- const: adtrgb1
- const: ovf1
- const: unf1
- const: ccmpa2
- const: ccmpb2
- const: cmpc2
- const: cmpd2
- const: cmpe2
- const: cmpf2
- const: adtrga2
- const: adtrgb2
- const: ovf2
- const: unf2
- const: ccmpa3
- const: ccmpb3
- const: cmpc3
- const: cmpd3
- const: cmpe3
- const: cmpf3
- const: adtrga3
- const: adtrgb3
- const: ovf3
- const: unf3
- const: ccmpa4
- const: ccmpb4
- const: cmpc4
- const: cmpd4
- const: cmpe4
- const: cmpf4
- const: adtrga4
- const: adtrgb4
- const: ovf4
- const: unf4
- const: ccmpa5
- const: ccmpb5
- const: cmpc5
- const: cmpd5
- const: cmpe5
- const: cmpf5
- const: adtrga5
- const: adtrgb5
- const: ovf5
- const: unf5
- const: ccmpa6
- const: ccmpb6
- const: cmpc6
- const: cmpd6
- const: cmpe6
- const: cmpf6
- const: adtrga6
- const: adtrgb6
- const: ovf6
- const: unf6
- const: ccmpa7
- const: ccmpb7
- const: cmpc7
- const: cmpd7
- const: cmpe7
- const: cmpf7
- const: adtrga7
- const: adtrgb7
- const: ovf7
- const: unf7
clocks:
maxItems: 1
power-domains:
maxItems: 1
resets:
maxItems: 1
required:
- compatible
- reg
- interrupts
- interrupt-names
- clocks
- power-domains
- resets
allOf:
- $ref: pwm.yaml#
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/r9a07g044-cpg.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
gpt: pwm@10048000 {
compatible = "renesas,r9a07g044-gpt", "renesas,rzg2l-gpt";
reg = <0x10048000 0x800>;
interrupts = <GIC_SPI 218 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 219 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 220 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 221 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 222 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 223 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 224 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 225 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 226 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 227 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 231 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 232 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 233 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 234 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 235 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 236 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 237 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 238 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 239 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 240 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 244 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 245 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 246 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 247 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 248 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 249 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 250 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 251 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 252 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 253 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 257 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 258 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 259 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 260 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 261 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 262 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 263 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 265 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 266 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 270 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 271 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 272 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 273 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 274 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 275 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 276 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 277 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 278 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 279 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 283 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 284 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 285 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 286 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 287 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 288 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 289 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 290 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 291 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 292 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 296 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 297 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 298 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 299 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 300 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 301 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 302 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 303 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 304 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 305 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 309 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 310 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 311 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 312 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 313 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 314 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 315 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 316 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 317 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
interrupt-names = "ccmpa0", "ccmpb0", "cmpc0", "cmpd0",
"cmpe0", "cmpf0", "adtrga0", "adtrgb0",
"ovf0", "unf0",
"ccmpa1", "ccmpb1", "cmpc1", "cmpd1",
"cmpe1", "cmpf1", "adtrga1", "adtrgb1",
"ovf1", "unf1",
"ccmpa2", "ccmpb2", "cmpc2", "cmpd2",
"cmpe2", "cmpf2", "adtrga2", "adtrgb2",
"ovf2", "unf2",
"ccmpa3", "ccmpb3", "cmpc3", "cmpd3",
"cmpe3", "cmpf3", "adtrga3", "adtrgb3",
"ovf3", "unf3",
"ccmpa4", "ccmpb4", "cmpc4", "cmpd4",
"cmpe4", "cmpf4", "adtrga4", "adtrgb4",
"ovf4", "unf4",
"ccmpa5", "ccmpb5", "cmpc5", "cmpd5",
"cmpe5", "cmpf5", "adtrga5", "adtrgb5",
"ovf5", "unf5",
"ccmpa6", "ccmpb6", "cmpc6", "cmpd6",
"cmpe6", "cmpf6", "adtrga6", "adtrgb6",
"ovf6", "unf6",
"ccmpa7", "ccmpb7", "cmpc7", "cmpd7",
"cmpe7", "cmpf7", "adtrga7", "adtrgb7",
"ovf7", "unf7";
clocks = <&cpg CPG_MOD R9A07G044_GPT_PCLK>;
power-domains = <&cpg>;
resets = <&cpg R9A07G044_GPT_RST_C>;
#pwm-cells = <3>;
};