linux-kernel - Re: [PATCH v2 1/5] i3c: mipi-i3c-hci: Add MIPI0100 ACPI ID to the I3C Support List

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Message-ID: <4808f199-2cc7-4150-ac04-0f36db841f50@linux.intel.com>
Date: Fri, 2 Aug 2024 16:23:19 +0300
From: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To: Shyam Sundar S K <Shyam-sundar.S-k@....com>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Guruvendra Punugupati <Guruvendra.Punugupati@....com>,
 Krishnamoorthi M <krishnamoorthi.m@....com>, linux-i3c@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/5] i3c: mipi-i3c-hci: Add MIPI0100 ACPI ID to the I3C
 Support List

Hi

On 7/24/24 10:12 AM, Shyam Sundar S K wrote:
> The current driver code lacks the necessary plumbing for ACPI IDs,
> preventing the mipi-i3c-hci driver from being loaded on x86
> platforms that advertise I3C ACPI support.
> 
> This update adds the MIPI0100 ACPI ID to the list of supported IDs.
> 
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@....com>
> ---
> MIPI0100 is the ACPI ID as defined in the MIPI I3C DisCo specification.
> 
>   drivers/i3c/master/mipi-i3c-hci/core.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
> index d7e966a25583..dbc8c38bd962 100644
> --- a/drivers/i3c/master/mipi-i3c-hci/core.c
> +++ b/drivers/i3c/master/mipi-i3c-hci/core.c
> @@ -826,12 +826,18 @@ static const __maybe_unused struct of_device_id i3c_hci_of_match[] = {
>   };
>   MODULE_DEVICE_TABLE(of, i3c_hci_of_match);
>   
> +static const struct acpi_device_id i3c_hci_acpi_match[] = {
> +	{"MIPI0100"},
> +	{}
> +};
> +
>   static struct platform_driver i3c_hci_driver = {
>   	.probe = i3c_hci_probe,
>   	.remove_new = i3c_hci_remove,
>   	.driver = {
>   		.name = "mipi-i3c-hci",
>   		.of_match_table = of_match_ptr(i3c_hci_of_match),
> +		.acpi_match_table = i3c_hci_acpi_match,
>   	},
>   };
>   module_platform_driver(i3c_hci_driver);

Looks otherwise ok to me but is this missing MODULE_DEVICE_TABLE()?