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Message-ID: <1jh6ftc070.fsf@starbuckisacylon.baylibre.com>
Date: Mon, 22 Apr 2024 09:40:48 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Jan Dakinevich <jan.dakinevich@...utedevices.com>
Cc: Neil Armstrong <neil.armstrong@...aro.org>, Jerome Brunet
<jbrunet@...libre.com>, Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof
Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Kevin
Hilman <khilman@...libre.com>, Martin Blumenstingl
<martin.blumenstingl@...glemail.com>, Philipp Zabel
<p.zabel@...gutronix.de>, Jiucheng Xu <jiucheng.xu@...ogic.com>,
linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC PATCH v3 4/6] dt-bindings: clock: meson: document A1 SoC
audio clock controller driver
On Fri 19 Apr 2024 at 15:58, Jan Dakinevich <jan.dakinevich@...utedevices.com> wrote:
> Add device tree bindings for A1 SoC audio clock and reset controllers.
>
> Signed-off-by: Jan Dakinevich <jan.dakinevich@...utedevices.com>
> ---
>
> This controller has 6 mandatory and up to 20 optional clocks. To describe
> this, I use 'additionalItems'. It produces correct processed-schema.json:
>
> "clock-names": {
> "maxItems": 26,
> "items": [
> {
> "const": "pclk"
> },
> {
> "const": "dds_in"
> },
> {
> "const": "fclk_div2"
> },
> {
> "const": "fclk_div3"
> },
> {
> "const": "hifi_pll"
> },
> {
> "const": "xtal"
> }
> ],
> "additionalItems": {
> "oneOf": [
> {
> "pattern": "^slv_sclk[0-9]$"
> },
> {
> "pattern": "^slv_lrclk[0-9]$"
> }
> ]
> },
> "type": "array",
> "minItems": 6
> },
>
> and it behaves as expected. However, the checking is followed by
> complaints like this:
>
> Documentation/devicetree/bindings/clock/amlogic,a1-audio-clkc.yaml: properties:clock-names:additionalItems: {'oneOf': [{'pattern': '^slv_sclk[0-9]$'}, {'pattern': '^slv_lrclk[0-9]$'}]} is not of type 'boolean'
>
> And indeed, 'additionalItems' has boolean type in meta-schema. So, how to
> do it right?
> ---
> .../bindings/clock/amlogic,a1-audio-clkc.yaml | 124 ++++++++++++++++++
> .../dt-bindings/clock/amlogic,a1-audio-clkc.h | 122 +++++++++++++++++
> .../reset/amlogic,meson-a1-audio-reset.h | 29 ++++
> 3 files changed, 275 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/amlogic,a1-audio-clkc.yaml
> create mode 100644 include/dt-bindings/clock/amlogic,a1-audio-clkc.h
> create mode 100644 include/dt-bindings/reset/amlogic,meson-a1-audio-reset.h
>
> diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-audio-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-audio-clkc.yaml
> new file mode 100644
> index 000000000000..40a0af3635f4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/amlogic,a1-audio-clkc.yaml
> @@ -0,0 +1,124 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/amlogic,a1-audio-clkc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic A1 Audio Clock Control Unit and Reset Controller
> +
> +maintainers:
> + - Neil Armstrong <neil.armstrong@...aro.org>
> + - Jerome Brunet <jbrunet@...libre.com>
> + - Jan Dakinevich <jan.dakinevich@...utedevices.com>
> +
> +properties:
> + compatible:
> + enum:
> + - amlogic,a1-audio-clkc
> + - amlogic,a1-audio-vad-clkc
> +
> + '#clock-cells':
> + const: 1
> +
> + '#reset-cells':
> + const: 1
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 26
> + items:
> + - description: input main peripheral bus clock
> + - description: input dds_in
> + - description: input fixed pll div2
> + - description: input fixed pll div3
> + - description: input hifi_pll
> + - description: input oscillator (usually at 24MHz)
> + additionalItems:
> + oneOf:
> + - description: slv_sclk[0-9] - slave bit clocks provided by external components
> + - description: slv_lrclk[0-9]- slave sample clocks provided by external components
> +
> + clock-names:
> + maxItems: 26
> + items:
> + - const: pclk
> + - const: dds_in
> + - const: fclk_div2
> + - const: fclk_div3
> + - const: hifi_pll
> + - const: xtal
> + additionalItems:
> + oneOf:
> + - pattern: "^slv_sclk[0-9]$"
> + - pattern: "^slv_lrclk[0-9]$"
> +
> +required:
> + - compatible
> + - '#clock-cells'
> + - reg
> + - clocks
> + - clock-names
> +
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: amlogic,a1-audio-clkc
> + then:
> + required:
> + - '#reset-cells'
> + else:
> + properties:
> + '#reset-cells': false
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
> + #include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
> + #include <dt-bindings/clock/amlogic,a1-audio-clkc.h>
> + audio {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + clkc_audio: clock-controller@...50000 {
> + compatible = "amlogic,a1-audio-clkc";
> + reg = <0x0 0xfe050000 0x0 0xb0>;
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + clocks = <&clkc_audio_vad AUD_CLKID_VAD_AUDIOTOP>,
> + <&clkc_periphs CLKID_DDS_IN>,
> + <&clkc_pll CLKID_FCLK_DIV2>,
> + <&clkc_pll CLKID_FCLK_DIV3>,
> + <&clkc_pll CLKID_HIFI_PLL>,
> + <&xtal>;
> + clock-names = "pclk",
> + "dds_in",
> + "fclk_div2",
> + "fclk_div3",
> + "hifi_pll",
> + "xtal";
> + };
> +
> + clkc_audio_vad: clock-controller@...54800 {
> + compatible = "amlogic,a1-audio2-clkc";
> + reg = <0x0 0xfe054800 0x0 0x20>;
> + #clock-cells = <1>;
> + clocks = <&clkc_periphs CLKID_AUDIO>,
> + <&clkc_periphs CLKID_DDS_IN>,
> + <&clkc_pll CLKID_FCLK_DIV2>,
> + <&clkc_pll CLKID_FCLK_DIV3>,
> + <&clkc_pll CLKID_HIFI_PLL>,
> + <&xtal>;
> + clock-names = "pclk",
> + "dds_in",
> + "fclk_div2",
> + "fclk_div3",
> + "hifi_pll",
> + "xtal";
> + };
> + };
> diff --git a/include/dt-bindings/clock/amlogic,a1-audio-clkc.h b/include/dt-bindings/clock/amlogic,a1-audio-clkc.h
> new file mode 100644
> index 000000000000..6534d1878816
> --- /dev/null
> +++ b/include/dt-bindings/clock/amlogic,a1-audio-clkc.h
> @@ -0,0 +1,122 @@
> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> +/*
> + * Copyright (c) 2024, SaluteDevices. All Rights Reserved.
> + *
> + * Author: Jan Dakinevich <jan.dakinevich@...utedevices.com>
> + */
> +
> +#ifndef __A1_AUDIO_CLKC_BINDINGS_H
> +#define __A1_AUDIO_CLKC_BINDINGS_H
> +
> +#define AUD_CLKID_DDR_ARB 1
> +#define AUD_CLKID_TDMIN_A 2
> +#define AUD_CLKID_TDMIN_B 3
> +#define AUD_CLKID_TDMIN_LB 4
> +#define AUD_CLKID_LOOPBACK 5
> +#define AUD_CLKID_TDMOUT_A 6
> +#define AUD_CLKID_TDMOUT_B 7
> +#define AUD_CLKID_FRDDR_A 8
> +#define AUD_CLKID_FRDDR_B 9
> +#define AUD_CLKID_TODDR_A 10
> +#define AUD_CLKID_TODDR_B 11
> +#define AUD_CLKID_SPDIFIN 12
> +#define AUD_CLKID_RESAMPLE 13
> +#define AUD_CLKID_EQDRC 14
> +#define AUD_CLKID_LOCKER 15
> +#define AUD_CLKID_MST_A_MCLK_SEL 16
> +#define AUD_CLKID_MST_A_MCLK_DIV 17
> +#define AUD_CLKID_MST_A_MCLK 18
> +#define AUD_CLKID_MST_B_MCLK_SEL 19
> +#define AUD_CLKID_MST_B_MCLK_DIV 20
> +#define AUD_CLKID_MST_B_MCLK 21
> +#define AUD_CLKID_MST_C_MCLK_SEL 22
> +#define AUD_CLKID_MST_C_MCLK_DIV 23
> +#define AUD_CLKID_MST_C_MCLK 24
> +#define AUD_CLKID_MST_D_MCLK_SEL 25
> +#define AUD_CLKID_MST_D_MCLK_DIV 26
> +#define AUD_CLKID_MST_D_MCLK 27
> +#define AUD_CLKID_SPDIFIN_CLK_SEL 28
> +#define AUD_CLKID_SPDIFIN_CLK_DIV 29
> +#define AUD_CLKID_SPDIFIN_CLK 30
> +#define AUD_CLKID_RESAMPLE_CLK_SEL 31
> +#define AUD_CLKID_RESAMPLE_CLK_DIV 32
> +#define AUD_CLKID_RESAMPLE_CLK 33
> +#define AUD_CLKID_LOCKER_IN_CLK_SEL 34
> +#define AUD_CLKID_LOCKER_IN_CLK_DIV 35
> +#define AUD_CLKID_LOCKER_IN_CLK 36
> +#define AUD_CLKID_LOCKER_OUT_CLK_SEL 37
> +#define AUD_CLKID_LOCKER_OUT_CLK_DIV 38
> +#define AUD_CLKID_LOCKER_OUT_CLK 39
> +#define AUD_CLKID_EQDRC_CLK_SEL 40
> +#define AUD_CLKID_EQDRC_CLK_DIV 41
> +#define AUD_CLKID_EQDRC_CLK 42
> +#define AUD_CLKID_MST_A_SCLK_PRE_EN 43
> +#define AUD_CLKID_MST_A_SCLK_DIV 44
> +#define AUD_CLKID_MST_A_SCLK_POST_EN 45
> +#define AUD_CLKID_MST_A_SCLK 46
> +#define AUD_CLKID_MST_B_SCLK_PRE_EN 47
> +#define AUD_CLKID_MST_B_SCLK_DIV 48
> +#define AUD_CLKID_MST_B_SCLK_POST_EN 49
> +#define AUD_CLKID_MST_B_SCLK 50
> +#define AUD_CLKID_MST_C_SCLK_PRE_EN 51
> +#define AUD_CLKID_MST_C_SCLK_DIV 52
> +#define AUD_CLKID_MST_C_SCLK_POST_EN 53
> +#define AUD_CLKID_MST_C_SCLK 54
> +#define AUD_CLKID_MST_D_SCLK_PRE_EN 55
> +#define AUD_CLKID_MST_D_SCLK_DIV 56
> +#define AUD_CLKID_MST_D_SCLK_POST_EN 57
> +#define AUD_CLKID_MST_D_SCLK 58
> +#define AUD_CLKID_MST_A_LRCLK_DIV 59
> +#define AUD_CLKID_MST_A_LRCLK 60
> +#define AUD_CLKID_MST_B_LRCLK_DIV 61
> +#define AUD_CLKID_MST_B_LRCLK 62
> +#define AUD_CLKID_MST_C_LRCLK_DIV 63
> +#define AUD_CLKID_MST_C_LRCLK 64
> +#define AUD_CLKID_MST_D_LRCLK_DIV 65
> +#define AUD_CLKID_MST_D_LRCLK 66
> +#define AUD_CLKID_TDMIN_A_SCLK_SEL 67
> +#define AUD_CLKID_TDMIN_A_SCLK_PRE_EN 68
> +#define AUD_CLKID_TDMIN_A_SCLK_POST_EN 69
> +#define AUD_CLKID_TDMIN_A_SCLK 70
> +#define AUD_CLKID_TDMIN_A_LRCLK 71
> +#define AUD_CLKID_TDMIN_B_SCLK_SEL 72
> +#define AUD_CLKID_TDMIN_B_SCLK_PRE_EN 73
> +#define AUD_CLKID_TDMIN_B_SCLK_POST_EN 74
> +#define AUD_CLKID_TDMIN_B_SCLK 75
> +#define AUD_CLKID_TDMIN_B_LRCLK 76
> +#define AUD_CLKID_TDMIN_LB_SCLK_SEL 77
> +#define AUD_CLKID_TDMIN_LB_SCLK_PRE_EN 78
> +#define AUD_CLKID_TDMIN_LB_SCLK_POST_EN 79
> +#define AUD_CLKID_TDMIN_LB_SCLK 80
> +#define AUD_CLKID_TDMIN_LB_LRCLK 81
> +#define AUD_CLKID_TDMOUT_A_SCLK_SEL 82
> +#define AUD_CLKID_TDMOUT_A_SCLK_PRE_EN 83
> +#define AUD_CLKID_TDMOUT_A_SCLK_POST_EN 84
> +#define AUD_CLKID_TDMOUT_A_SCLK 85
> +#define AUD_CLKID_TDMOUT_A_LRCLK 86
> +#define AUD_CLKID_TDMOUT_B_SCLK_SEL 87
> +#define AUD_CLKID_TDMOUT_B_SCLK_PRE_EN 88
> +#define AUD_CLKID_TDMOUT_B_SCLK_POST_EN 89
> +#define AUD_CLKID_TDMOUT_B_SCLK 90
> +#define AUD_CLKID_TDMOUT_B_LRCLK 91
> +
> +#define AUD_CLKID_VAD_DDR_ARB 1
> +#define AUD_CLKID_VAD_PDM 2
> +#define AUD_CLKID_VAD_TDMIN 3
> +#define AUD_CLKID_VAD_TODDR 4
> +#define AUD_CLKID_VAD 5
> +#define AUD_CLKID_VAD_AUDIOTOP 6
> +#define AUD_CLKID_VAD_MCLK_SEL 7
> +#define AUD_CLKID_VAD_MCLK_DIV 8
> +#define AUD_CLKID_VAD_MCLK 9
> +#define AUD_CLKID_VAD_CLK_SEL 10
> +#define AUD_CLKID_VAD_CLK_DIV 11
> +#define AUD_CLKID_VAD_CLK 12
> +#define AUD_CLKID_VAD_PDM_DCLK_SEL 13
> +#define AUD_CLKID_VAD_PDM_DCLK_DIV 14
> +#define AUD_CLKID_VAD_PDM_DCLK 15
> +#define AUD_CLKID_VAD_PDM_SYSCLK_SEL 16
> +#define AUD_CLKID_VAD_PDM_SYSCLK_DIV 17
> +#define AUD_CLKID_VAD_PDM_SYSCLK 18
> +
Again, please split the a1 and a1-vad controller.
They are independent and there is no reason to use a single file for them
> +#endif /* __A1_AUDIO_CLKC_BINDINGS_H */
> diff --git a/include/dt-bindings/reset/amlogic,meson-a1-audio-reset.h b/include/dt-bindings/reset/amlogic,meson-a1-audio-reset.h
> new file mode 100644
> index 000000000000..653fddba1d8f
> --- /dev/null
> +++ b/include/dt-bindings/reset/amlogic,meson-a1-audio-reset.h
> @@ -0,0 +1,29 @@
> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> +/*
> + * Copyright (c) 2024, SaluteDevices. All Rights Reserved.
> + *
> + * Author: Jan Dakinevich <jan.dakinevich@...utedevices.com>
> + */
> +
> +#ifndef _DT_BINDINGS_AMLOGIC_MESON_A1_AUDIO_RESET_H
> +#define _DT_BINDINGS_AMLOGIC_MESON_A1_AUDIO_RESET_H
> +
> +#define AUD_RESET_DDRARB 0
> +#define AUD_RESET_TDMIN_A 1
> +#define AUD_RESET_TDMIN_B 2
> +#define AUD_RESET_TDMIN_LB 3
> +#define AUD_RESET_LOOPBACK 4
> +#define AUD_RESET_TDMOUT_A 5
> +#define AUD_RESET_TDMOUT_B 6
> +#define AUD_RESET_FRDDR_A 7
> +#define AUD_RESET_FRDDR_B 8
> +#define AUD_RESET_TODDR_A 9
> +#define AUD_RESET_TODDR_B 10
> +#define AUD_RESET_SPDIFIN 11
> +#define AUD_RESET_RESAMPLE 12
> +#define AUD_RESET_EQDRC 13
> +#define AUD_RESET_LOCKER 14
> +#define AUD_RESET_TOACODEC 30
> +#define AUD_RESET_CLKTREE 31
> +
> +#endif /* _DT_BINDINGS_AMLOGIC_MESON_A1_AUDIO_RESET_H */
--
Jerome
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