From mboxrd@z Thu Jan 1 00:00:00 1970 From: tn@semihalf.com (Tomasz Nowicki) Date: Tue, 8 Sep 2015 16:38:50 +0200 Subject: [PATCH 0/5] ACPI probing infrastructure In-Reply-To: <55ED3599.5090508@semihalf.com> References: <1441386412-8139-1-git-send-email-marc.zyngier@arm.com> <55ED3599.5090508@semihalf.com> Message-ID: <55EEF2FA.3050009@semihalf.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 07.09.2015 08:58, Tomasz Nowicki wrote: > 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 s/Acked-by/Reviewed-by Tomasz