From: Shannon Zhao <shannon.zhao@linaro.org>
To: Graeme Gregory <graeme.gregory@linaro.org>, linux-acpi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Shannon Zhao <zhaoshenglong@huawei.com>
Subject: Re: [PATCH 0/3] Add AMBA bus probing support to ACPI
Date: Thu, 29 Oct 2015 22:47:22 +0800 [thread overview]
Message-ID: <5632317A.40607@linaro.org> (raw)
In-Reply-To: <1443609530-21524-1-git-send-email-graeme.gregory@linaro.org>
On 2015/9/30 18:38, Graeme Gregory wrote:
> As discussed when Shannon Zhao sent a patch to add platform_device support
> to pl061 driver. Russel and other maintainers prefered that ACPI learned
> how to create AMBA devices rather than converting/adding platform_device
> support to AMBA drivers.
>
> http://comments.gmane.org/gmane.linux.ports.arm.kernel/431364
>
> 1) Adds basic AMBA device probing support to ACPI, it uses a whitelist of
> device IDs as the number of AMBA devices is limited. Currently the two ids
> present are those used in QEMU for arm64.
>
> 2) Adds the plumbing into ACPI probe sequence.
>
> 3) From ACPI pl011 is only defined (SBSA document) to be in SBSA mode which has
> reduced functionality. There may be a better method to do this that I have
> overlooked.
>
Thanks. I test this patchset with PL061 on QEMU for arm64 through below
patchset[1]. It works well.
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
[1]
https://git.linaro.org/people/shannon.zhao/qemu.git/shortlog/refs/heads/PowerButton_v2
--
Shannon
prev parent reply other threads:[~2015-10-29 14:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-30 10:38 [PATCH 0/3] Add AMBA bus probing support to ACPI Graeme Gregory
2015-09-30 10:38 ` [PATCH 1/3] ACPI: amba bus probing support Graeme Gregory
2015-09-30 10:38 ` [PATCH 2/3] ACPI: scan add call to probe amba devices Graeme Gregory
2015-12-01 2:16 ` Rafael J. Wysocki
2015-12-01 12:16 ` Graeme Gregory
2015-09-30 10:38 ` [PATCH 3/3] serial: amba-pl011: add ACPI support to AMBA probe Graeme Gregory
2015-12-01 2:21 ` Rafael J. Wysocki
2015-12-01 12:21 ` Graeme Gregory
2015-12-02 1:25 ` Rafael J. Wysocki
2015-12-03 20:06 ` Timur Tabi
2015-10-21 16:41 ` [PATCH 0/3] Add AMBA bus probing support to ACPI Al Stone
2015-10-21 22:29 ` Rafael J. Wysocki
2015-10-22 17:04 ` Al Stone
2015-10-29 14:47 ` Shannon Zhao [this message]
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