linux-kernel - Re: [PATCH v5 5/6] arm64: dts: imx8mp: add aipstz-related definitions

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Message-ID: <20250411152256.GA3270148-robh@kernel.org>
Date: Fri, 11 Apr 2025 10:22:56 -0500
From: Rob Herring <robh@...nel.org>
To: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Daniel Baluta <daniel.baluta@....com>,
	Shengjiu Wang <shengjiu.wang@....com>, Frank Li <Frank.li@....com>,
	Marco Felsch <m.felsch@...gutronix.de>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Alexander Stein <alexander.stein@...tq-group.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	devicetree@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 5/6] arm64: dts: imx8mp: add aipstz-related definitions

On Tue, Apr 08, 2025 at 11:42:35AM -0400, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> 
> Add header file with AIPSTZ-related definitions: consumer types,
> master/peripheral configuration bits, and master ID definitions.
> 
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp-aipstz.h | 39 +++++++++++++++++++
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi     |  1 +
>  2 files changed, 40 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-aipstz.h
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-aipstz.h b/arch/arm64/boot/dts/freescale/imx8mp-aipstz.h
> new file mode 100644
> index 000000000000..b816cb6ee9d0
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-aipstz.h
> @@ -0,0 +1,39 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
> +/*
> + * Copyright 2025 NXP
> + */
> +
> +#ifndef __IMX8MP_AIPSTZ_H
> +#define __IMX8MP_AIPSTZ_H
> +
> +/* consumer type - master or peripheral */
> +#define IMX8MP_AIPSTZ_MASTER 0x0
> +#define IMX8MP_AIPSTZ_PERIPH 0x1
> +
> +/* master configuration options */
> +#define IMX8MP_AIPSTZ_MPL (1 << 0)
> +#define IMX8MP_AIPSTZ_MTW (1 << 1)
> +#define IMX8MP_AIPSTZ_MTR (1 << 2)
> +#define IMX8MP_AIPSTZ_MBW (1 << 3)
> +
> +/* peripheral configuration options */
> +#define IMX8MP_AIPSTZ_TP (1 << 0)
> +#define IMX8MP_AIPSTZ_WP (1 << 1)
> +#define IMX8MP_AIPSTZ_SP (1 << 2)
> +#define IMX8MP_AIPSTZ_BW (1 << 3)
> +
> +/* master ID definitions */
> +#define IMX8MP_AIPSTZ_EDMA 0 /* AUDIOMIX EDMA */
> +#define IMX8MP_AIPSTZ_CA53 1 /* Cortex-A53 cluster */
> +#define IMX8MP_AIPSTZ_SDMA2 3 /* AUDIOMIX SDMA2 */
> +#define IMX8MP_AIPSTZ_SDMA3 3 /* AUDIOMIX SDMA3 */
> +#define IMX8MP_AIPSTZ_HIFI4 5 /* HIFI4 DSP */
> +#define IMX8MP_AIPSTZ_CM7 6 /* Cortex-M7 */
> +
> +/* helper macros */
> +#define IMX8MP_AIPSTZ_HIFI4_T_RW_PL					\
> +	IMX8MP_AIPSTZ_MASTER						\
> +	IMX8MP_AIPSTZ_HIFI4						\
> +	(IMX8MP_AIPSTZ_MPL | IMX8MP_AIPSTZ_MTW | IMX8MP_AIPSTZ_MTR)

Drop this. 1 define per value. Combining these makes the .dts look 
wrong.

Rob