lkml.org 
[lkml]   [2015]   [Sep]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/5] ACPI probing infrastructure
From
Date
Hi Marc,

On 04.09.2015 19:06, Marc Zyngier wrote:
> IRQ controllers and timers are the two types of device the kernel
> requires before being able to use the device driver model.
>
> ACPI so far lacks a proper probing infrastructure similar to the one
> we have with DT, where we're able to declare IRQ chips and
> clocksources inside the driver code, and let the core code pick it up
> and call us back on a match. This leads to all kind of really ugly
> hacks all over the arm64 code and even in the ACPI layer.
>
> It turns out that providing such a probing infrastructure is rather
> easy, and provides a much deserved cleanup in both the arch code, the
> GIC driver, and the architected timer driver.
>
> I'm sure there is some more code to be deleted, and one can only
> wonder why this wasn't done before the arm64 code was initially merged
> (the diffstat says it all...).
>
> Patches are against v4.2, and a branch is available at
>
> git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git acpi/device-probing
>
> Marc Zyngier (5):
> acpi: Add basic device probing infrastructure
> irqchip/acpi: Add probing infrastructure for ACPI-based irqchips
> irqchip/gic: Convert the GIC driver to ACPI probing
> clocksource/acpi: Add probing infrastructure for ACPI-based
> clocksources
> clocksource/arm_arch_timer: Convert to ACPI probing
>
> arch/arm64/include/asm/acpi.h | 1 -
> arch/arm64/include/asm/irq.h | 13 -------
> arch/arm64/kernel/acpi.c | 25 -------------
> arch/arm64/kernel/time.c | 6 ----
> drivers/acpi/scan.c | 41 +++++++++++++++++++++
> drivers/clocksource/arm_arch_timer.c | 10 +-----
> drivers/clocksource/clksrc-of.c | 4 +++
> drivers/irqchip/irq-gic.c | 69 ++++++++++++++++++------------------
> drivers/irqchip/irqchip.c | 5 ++-
> include/asm-generic/vmlinux.lds.h | 11 ++++++
> include/linux/acpi.h | 56 +++++++++++++++++++++++++++++
> include/linux/acpi_irq.h | 10 ------
> include/linux/clocksource.h | 6 ----
> include/linux/irqchip.h | 16 +++++++++
> include/linux/irqchip/arm-gic-acpi.h | 31 ----------------
> 15 files changed, 166 insertions(+), 138 deletions(-)
> delete mode 100644 include/linux/acpi_irq.h
> delete mode 100644 include/linux/irqchip/arm-gic-acpi.h
>

Thanks for cleaning this up!

For the whole series:
Acked-by: Tomasz Nowicki <tn@semihalf.com>


\
 
 \ /
  Last update: 2015-09-07 09:21    [W:0.454 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site