linux-kernel - Re: [PATCH v2 4/6] dt-bindings: Add HDA support for Tegra234

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Date:   Wed, 16 Feb 2022 09:33:42 +0200
From:   Mikko Perttunen <cyndis@...si.fi>
To:     Mohan Kumar <mkumard@...dia.com>, broonie@...nel.org,
        lgirdwood@...il.com, robh+dt@...nel.org, thierry.reding@...il.com,
        tiwai@...e.com, jonathanh@...dia.com, spujar@...dia.com
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/6] dt-bindings: Add HDA support for Tegra234

On 2/10/22 08:50, Mohan Kumar wrote:
> Add hda clocks, memory ,power and reset binding entries
> for Tegra234.
> 
> Signed-off-by: Mohan Kumar <mkumard@...dia.com>
> ---
>   include/dt-bindings/clock/tegra234-clock.h     | 4 ++++
>   include/dt-bindings/memory/tegra234-mc.h       | 6 ++++++
>   include/dt-bindings/power/tegra234-powergate.h | 9 +++++++++
>   include/dt-bindings/reset/tegra234-reset.h     | 2 ++
>   4 files changed, 21 insertions(+)
>   create mode 100644 include/dt-bindings/power/tegra234-powergate.h
> 
> diff --git a/include/dt-bindings/clock/tegra234-clock.h b/include/dt-bindings/clock/tegra234-clock.h
> index 8d7e66e1b6ef..c014269b7245 100644
> --- a/include/dt-bindings/clock/tegra234-clock.h
> +++ b/include/dt-bindings/clock/tegra234-clock.h
> @@ -30,5 +30,9 @@
>   #define TEGRA234_CLK_PLLC4			237U
>   /** @brief 32K input clock provided by PMIC */
>   #define TEGRA234_CLK_CLK_32K			289U
> +/** @brief CLK_RST_CONTROLLER_AZA2XBITCLK_OUT_SWITCH_DIVIDER switch divider output (aza_2xbitclk) */
> +#define TEGRA234_CLK_AZA_2XBIT			457U
> +/** @brief aza_2xbitclk / 2 (aza_bitclk) */
> +#define TEGRA234_CLK_AZA_BIT			458U
>   
>   #endif
> diff --git a/include/dt-bindings/memory/tegra234-mc.h b/include/dt-bindings/memory/tegra234-mc.h
> index 2662f70c15c6..f538fc442cee 100644
> --- a/include/dt-bindings/memory/tegra234-mc.h
> +++ b/include/dt-bindings/memory/tegra234-mc.h
> @@ -7,6 +7,8 @@
>   #define TEGRA234_SID_INVALID		0x00
>   #define TEGRA234_SID_PASSTHROUGH	0x7f
>   
> +/* NISO0 SMMU STREAM IDs */
> +#define TEGRA234_SID_NISO0_HDA		0x03

Please follow the existing convention in this file.

/* NISO0 stream IDs */
#define TEGRA234_SID_HDA	0x03

>   
>   /* NISO1 stream IDs */
>   #define TEGRA234_SID_SDMMC4	0x02
> @@ -16,6 +18,10 @@
>    * memory client IDs
>    */
>   
> +/* High-definition audio (HDA) read clients */
> +#define TEGRA234_MEMORY_CLIENT_HDAR 0x15
> +/* High-definition audio (HDA) write clients */
> +#define TEGRA234_MEMORY_CLIENT_HDAW 0x35
>   /* sdmmcd memory read client */
>   #define TEGRA234_MEMORY_CLIENT_SDMMCRAB 0x63
>   /* sdmmcd memory write client */
> diff --git a/include/dt-bindings/power/tegra234-powergate.h b/include/dt-bindings/power/tegra234-powergate.h
> new file mode 100644
> index 000000000000..3c5575a51296
> --- /dev/null
> +++ b/include/dt-bindings/power/tegra234-powergate.h
> @@ -0,0 +1,9 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved. */
> +
> +#ifndef __ABI_MACH_T234_POWERGATE_T234_H_
> +#define __ABI_MACH_T234_POWERGATE_T234_H_
> +
> +#define TEGRA234_POWER_DOMAIN_DISP	3U
> +
> +#endif
> diff --git a/include/dt-bindings/reset/tegra234-reset.h b/include/dt-bindings/reset/tegra234-reset.h
> index 50e13bced642..2ab61c69a3d9 100644
> --- a/include/dt-bindings/reset/tegra234-reset.h
> +++ b/include/dt-bindings/reset/tegra234-reset.h
> @@ -10,6 +10,8 @@
>    * @brief Identifiers for Resets controllable by firmware
>    * @{
>    */
> +#define TEGRA234_RESET_HDA			20U
> +#define TEGRA234_RESET_HDACODEC			21U
>   #define TEGRA234_RESET_SDMMC4			85U
>   #define TEGRA234_RESET_UARTA			100U
>