[PATCH 1/6] sound: ti: Add sound support for am625 board in Uboot

Tom Rini trini at konsulko.com
Mon Jul 8 17:46:56 CEST 2024


On Mon, Jul 08, 2024 at 01:22:02PM +0530, Scaria Kochidanadu wrote:

> Add a UCLASS_SOUND driver for Texas Instruments SoCs which ties together
> the tlv320aic3106 audio codec and MCASP I2S controller. Enable audio
> playback functionality by taking a data pointer and data size as the
> sound data. The uboot sound play command takes time and frequency as
> input and creates the data for a beep sound with the given parameters,
> which is then passed to the sound play function.
[snip]
> +++ b/drivers/sound/ti_sound.c
> @@ -0,0 +1,119 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * (C) Copyright 2024 Texas Instruments Incorporated - https://www.ti.com/
> + * Scaria M Kochidanadu, s-kochidanadu at ti.com
> + *
> + * based on the uboot samsung sound driver, which is
> + *
> + * Copyright 2018 Google, LLC
> + * Written by Simon Glass <sjg at chromium.org>
> + */
> +
> +#include <asm/u-boot.h> /* boot information for Linux kernel */
> +/* Pull in stuff for the build system */
> +#ifdef DO_DEPS_ONLY
> +#include <env_internal.h>
> +#endif
> +#include <audio_codec.h>
> +#include <dm.h>
> +#include <i2s.h>
> +#include <log.h>
> +#include <sound.h>
> +#include <asm/gpio.h>

Please audit this list. I really am confused by <env_internal.h>.

> +static int ti_sound_stop_play(struct udevice *dev)
> +{
> +	/* This function is necassary to satisfy the function calls
> +	 * in the Uboot command: sound play
> +	 */
> +	return 0;

/*
 * Like this...
 */

[snip]
> +static const struct udevice_id ti_sound_ids[] = {
> +	{ .compatible = "simple-audio-card" },
> +	{ }
> +};

Adding an actual simple-audio-card framework for U-Boot would be great.
This driver implies (and is?) TI-centric, instead. So lets rework this
to be split appropriately? Thanks.

-- 
Tom
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