From: Aleksey Makarov <aleksey.makarov@linaro.org>
To: linux-acpi@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Aleksey Makarov <aleksey.makarov@linaro.org>,
Graeme Gregory <graeme.gregory@linaro.org>,
Russell King <linux@arm.linux.org.uk>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Shannon Zhao <shannon.zhao@linaro.org>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Vladimir Zapolskiy <vz@mleia.com>
Subject: [PATCH v4 0/3] Add AMBA bus probing support to ACPI
Date: Wed, 23 Dec 2015 17:19:39 +0300 [thread overview]
Message-ID: <1450880383-29560-1-git-send-email-aleksey.makarov@linaro.org> (raw)
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.
v4:
- A memory leak has been fixed (Vladimir Zapolskiy)
- ACPI_COMPANION() -> has_acpi_companion() (Andy Shevchenko)
- pr_err() -> dev_err() (Andy Shevchenko)
- The call to amba_register_dummy_clk() has been moved to to acpi_amba_init()
(Vladimir Zapolskiy)
- Return value has been fixed (Vladimir Zapolskiy)
v3:
https://lkml.kernel.org/g/1450716100-13688-1-git-send-email-aleksey.makarov@linaro.org
- Compilation without CONFIG_ARM_AMBA has been fixed
v2:
https://lkml.kernel.org/g/1450709399-7246-1-git-send-email-aleksey.makarov@linaro.org
- A new ACPI scan handler for AMBA devices has been implemented
- The order of `if` branches in amba-pl011.c has been changed
- A couple of `static`s have been added
- The compilation of the acpi_amba.c unit has made conditional
- A comment on SBSA UART has been added
v1:
https://lkml.kernel.org/g/1443609530-21524-1-git-send-email-graeme.gregory@linaro.org
Graeme Gregory (3):
ACPI: amba bus probing support
ACPI: scan add in amba probing
serial: amba-pl011: add ACPI support to AMBA probe
drivers/acpi/Makefile | 1 +
drivers/acpi/acpi_amba.c | 140 ++++++++++++++++++++++++++++++++++++++++
drivers/acpi/internal.h | 5 ++
drivers/acpi/scan.c | 1 +
drivers/tty/serial/amba-pl011.c | 37 +++++++----
5 files changed, 173 insertions(+), 11 deletions(-)
create mode 100644 drivers/acpi/acpi_amba.c
--
2.6.4
next reply other threads:[~2015-12-23 14:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-23 14:19 Aleksey Makarov [this message]
2015-12-23 14:19 ` [PATCH v4 1/3] ACPI: amba bus probing support Aleksey Makarov
2015-12-23 18:49 ` Andy Shevchenko
2016-01-03 13:36 ` Russell King - ARM Linux
2015-12-23 14:19 ` [PATCH v4 2/3] ACPI: scan add in amba probing Aleksey Makarov
2015-12-23 14:19 ` [PATCH v4 3/3] serial: amba-pl011: add ACPI support to AMBA probe Aleksey Makarov
2016-01-04 23:13 ` Timur Tabi
2016-01-05 8:55 ` G Gregory
2016-01-05 16:23 ` Timur Tabi
2016-01-06 11:03 ` Graeme Gregory
2016-01-11 21:38 ` Timur Tabi
2016-01-03 0:39 ` [PATCH v4 0/3] Add AMBA bus probing support to ACPI Rafael J. Wysocki
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