From mboxrd@z Thu Jan 1 00:00:00 1970 From: Graeme Gregory Subject: [PATCH 0/3] Add AMBA bus probing support to ACPI Date: Wed, 30 Sep 2015 11:38:47 +0100 Message-ID: <1443609530-21524-1-git-send-email-graeme.gregory@linaro.org> Return-path: Received: from mail-wi0-f171.google.com ([209.85.212.171]:33045 "EHLO mail-wi0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754767AbbI3Kiz (ORCPT ); Wed, 30 Sep 2015 06:38:55 -0400 Received: by wiclk2 with SMTP id lk2so191271157wic.0 for ; Wed, 30 Sep 2015 03:38:54 -0700 (PDT) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, shannon.zhao@linaro.org 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 Graeme