linux-kernel - Re: [PATCH] ASoC: fsl_sai: Don't use devm_regmap_init_mmio

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Message-ID: <2d2ce2e8-cfdb-89e7-9c79-60770f2c24f0@roeck-us.net>
Date:   Mon, 12 Apr 2021 08:52:59 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Shengjiu Wang <shengjiu.wang@...il.com>
Cc:     Shengjiu Wang <shengjiu.wang@....com>, alsa-devel@...a-project.org,
        Timur Tabi <timur@...nel.org>, Xiubo Li <Xiubo.Lee@...il.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: fsl_sai: Don't use devm_regmap_init_mmio_clk

On 4/12/21 3:37 AM, Shengjiu Wang wrote:
[ ... ]
> The SAI module is not supported in QEMU, so the access of the register
> failed.
> 
> you can add bypass the access in QEMU, for example:
> 
> diff --git a/hw/arm/fsl-imx6ul.c b/hw/arm/fsl-imx6ul.c
> index e0128d7316..62f7bd92a4 100644
> --- a/hw/arm/fsl-imx6ul.c
> +++ b/hw/arm/fsl-imx6ul.c
> @@ -534,6 +534,10 @@ static void fsl_imx6ul_realize(DeviceState *dev,
> Error **errp)
>       */
>      create_unimplemented_device("sdma", FSL_IMX6UL_SDMA_ADDR, 0x4000);
> 
> +    create_unimplemented_device("sai1", 0x02028000, 0x4000);
> +    create_unimplemented_device("sai2", 0x0202c000, 0x4000);
> +    create_unimplemented_device("sai3", 0x02030000, 0x4000);
> 
Ah, yes, that takes care of the problem.

Thanks, and sorry for the noise.

Guenter