linux-kernel - Re: Re：Re: [PATCH 3/3] arm_scpi: modify to support acpi

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Message-ID: <9732f012-f2f5-d770-c9b7-6005fa0c578f@huawei.com>
Date:   Fri, 25 Nov 2022 09:38:42 +0800
From:   Hanjun Guo <guohanjun@...wei.com>
To:     王洪辉 <honghui.wang@...s.com.cn>,
        Sudeep Holla <sudeep.holla@....com>
CC:     Mark Rutland <mark.rutland@....com>,
        Cristian Maruss <cristian.marussi@....com>,
        Jassi Brar <jassisinghbrar@...il.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Re：Re: [PATCH 3/3] arm_scpi: modify to support acpi

Hi Honghui,

On 2022/11/24 22:17, 王洪辉 wrote:
> Thanks!
> 
> The uefi firmware was built include ACPI/AML, but current kernel code is not able to extract the info, the ACPI/AML driver of kernel is not enough for majority of  devices , but fdt driver is. I think there's a lot of work to support more acpi driver.

I think the firmware did the wrong thing about SCPI support,
please take a look at ACPI 6.5, chapter 14 Platform Communications
Channel (PCC).

Thanks
Hanjun