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Message-ID: <edf1faf3-178c-bc89-148d-892f41492d26@linaro.org>
Date: Mon, 23 May 2022 09:35:58 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Tomer Maimon <tmaimon77@...il.com>, avifishman70@...il.com,
tali.perry1@...il.com, joel@....id.au, venture@...gle.com,
yuenn@...gle.com, benjaminfair@...gle.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
sboyd@...nel.org, p.zabel@...gutronix.de,
gregkh@...uxfoundation.org, daniel.lezcano@...aro.org,
tglx@...utronix.de, wim@...ux-watchdog.org, linux@...ck-us.net,
catalin.marinas@....com, will@...nel.org, arnd@...db.de,
olof@...om.net, jirislaby@...nel.org, shawnguo@...nel.org,
bjorn.andersson@...aro.org, geert+renesas@...der.be,
marcel.ziswiler@...adex.com, vkoul@...nel.org,
biju.das.jz@...renesas.com, nobuhiro1.iwamatsu@...hiba.co.jp,
robert.hancock@...ian.com, j.neuschaefer@....net, lkundrak@...sk
Cc: soc@...nel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
linux-serial@...r.kernel.org, linux-watchdog@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 07/19] dt-binding: clk: npcm845: Add binding for
Nuvoton NPCM8XX Clock
On 22/05/2022 17:50, Tomer Maimon wrote:
> Nuvoton Arbel BMC NPCM7XX contains an integrated clock controller, which
> generates and supplies clocks to all modules within the BMC.
>
> Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> ---
> .../bindings/clock/nuvoton,npcm845-clk.yaml | 68 +++++++++++++++++++
> .../dt-bindings/clock/nuvoton,npcm8xx-clock.h | 50 ++++++++++++++
> 2 files changed, 118 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> create mode 100644 include/dt-bindings/clock/nuvoton,npcm8xx-clock.h
>
> diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> new file mode 100644
> index 000000000000..f305c7c7eaf0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/nuvoton,npcm845-clk.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nuvoton NPCM8XX Clock Controller Binding
> +
> +maintainers:
> + - Tomer Maimon <tmaimon77@...il.com>
> +
> +description: |
> + Nuvoton Arbel BMC NPCM8XX contains an integrated clock controller, which
> + generates and supplies clocks to all modules within the BMC.
> +
> +properties:
> + compatible:
> + enum:
> + - nuvoton,npcm845-clk
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + description:
> + specify the external clocks used by the NPCM8XX clock module.
Skip description, it's obvious.
> + items:
> + - description: 25M reference clock
> + - description: CPU reference clock
> + - description: MC reference clock
> +
> + clock-names:
> + description:
> + specify the external clocks names used by the NPCM8XX clock module.
Skip description, it's obvious.
> + items:
> + - const: refclk
Just "ref"
> + - const: sysbypck
> + - const: mcbypck
Is "ck" short for "clk"? If yes, then just skip the suffix.
> +
> + '#clock-cells':
> + const: 1
> + description:
> + See include/dt-bindings/clock/nuvoton,npcm8xx-clock.h for the full
> + list of NPCM8XX clock IDs.
> +
> +required:
> + - compatible
> + - reg
> + - "#clock-cells"
> +
> +additionalProperties: false
> +
> +examples:
> + # Clock Control Module node:
> + - |
> +
No need for blank line.
> + ahb {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + clk: clock-controller@...01000 {
> + compatible = "nuvoton,npcm845-clk";
> + reg = <0x0 0xf0801000 0x0 0x1000>;
> + #clock-cells = <1>;
> + };
> + };
> +
> +...
> diff --git a/include/dt-bindings/clock/nuvoton,npcm8xx-clock.h b/include/dt-bindings/clock/nuvoton,npcm8xx-clock.h
> new file mode 100644
> index 000000000000..d76f606bf88b
> --- /dev/null
> +++ b/include/dt-bindings/clock/nuvoton,npcm8xx-clock.h
Filename - same as bindings, so nuvoton,npcm845-clk.h
> @@ -0,0 +1,50 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
Dual license, same as bindings.
> +/*
> + * Nuvoton NPCM8xx Clock Generator binding
> + * clock binding number for all clocks supportted by nuvoton,npcm8xx-clk
> + *
> + * Copyright (C) 2021 Nuvoton Technologies tomer.maimon@...oton.com
> + *
> + */
> +
> +#ifndef __DT_BINDINGS_CLOCK_NPCM8XX_H
> +#define __DT_BINDINGS_CLOCK_NPCM8XX_H
> +
> +#define NPCM8XX_CLK_CPU 0
> +#define NPCM8XX_CLK_GFX_PIXEL 1
> +#define NPCM8XX_CLK_MC 2
> +#define NPCM8XX_CLK_ADC 3
> +#define NPCM8XX_CLK_AHB 4
> +#define NPCM8XX_CLK_TIMER 5
> +#define NPCM8XX_CLK_UART 6
> +#define NPCM8XX_CLK_UART2 7
> +#define NPCM8XX_CLK_MMC 8
> +#define NPCM8XX_CLK_SPI3 9
> +#define NPCM8XX_CLK_PCI 10
> +#define NPCM8XX_CLK_AXI 11
> +#define NPCM8XX_CLK_APB4 12
> +#define NPCM8XX_CLK_APB3 13
> +#define NPCM8XX_CLK_APB2 14
> +#define NPCM8XX_CLK_APB1 15
> +#define NPCM8XX_CLK_APB5 16
> +#define NPCM8XX_CLK_CLKOUT 17
> +#define NPCM8XX_CLK_GFX 18
> +#define NPCM8XX_CLK_SU 19
> +#define NPCM8XX_CLK_SU48 20
> +#define NPCM8XX_CLK_SDHC 21
> +#define NPCM8XX_CLK_SPI0 22
> +#define NPCM8XX_CLK_SPI1 23
> +#define NPCM8XX_CLK_SPIX 24
> +#define NPCM8XX_CLK_RG 25
> +#define NPCM8XX_CLK_RCP 26
> +#define NPCM8XX_CLK_PRE_ADC 27
> +#define NPCM8XX_CLK_ATB 28
> +#define NPCM8XX_CLK_PRE_CLK 29
> +#define NPCM8XX_CLK_TH 30
> +#define NPCM8XX_CLK_REFCLK 31
> +#define NPCM8XX_CLK_SYSBYPCK 32
> +#define NPCM8XX_CLK_MCBYPCK 33
> +
> +#define NPCM8XX_NUM_CLOCKS (NPCM8XX_CLK_MCBYPCK + 1)
> +
> +#endif
Best regards,
Krzysztof
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