Hi, This patch set is a cleanup that properly separate drivers needing to access the PMC (PM and USB) from the clock driver by exposing the PMC as a syscon.
This also allows to implement a fix for preempt-rt. Currently, at91 platform are crashing when using preempt-rt because the irq handler are transformed in threaded irq handler but at the time the pmc registers its clocks, it is not possible to creat threads, leading to a NULL pointer dereference in the kernel. The new infrastructure uses polling until it is late enough to register threaded irqs. Changes in v2: - added Felipe's ack - dropped the first two patches as they are already in clk-next - reworked struct clk_main as suggested by Boris - changed the commit descritpion for "clk: at91: only disable available IRQs" as suggested by Ludovic - added Stephen's ack on patch 2 Alexandre Belloni (11): ARM: at91/dt: use syscon for PMC clk: at91: clk-main: factorize irq handling clk: at91: make IRQ optional and register them later clk: at91: pmc: merge at91_pmc_init in atmel_pmc_probe clk: at91: pmc: move pmc structures to C file ARM: at91: pm: simply call at91_pm_init ARM: at91: pm: find and remap the pmc ARM: at91: pm: move idle functions to pm.c ARM: at91: remove useless includes and function prototypes usb: gadget: atmel: access the PMC using regmap clk: at91: pmc: drop at91_pmc_base Boris Brezillon (3): clk: at91: make use of syscon to share PMC registers in several drivers clk: at91: make use of syscon/regmap internally clk: at91: only disable available IRQs arch/arm/boot/dts/at91rm9200.dtsi | 2 +- arch/arm/boot/dts/at91sam9260.dtsi | 2 +- arch/arm/boot/dts/at91sam9261.dtsi | 2 +- arch/arm/boot/dts/at91sam9263.dtsi | 2 +- arch/arm/boot/dts/at91sam9g45.dtsi | 2 +- arch/arm/boot/dts/at91sam9n12.dtsi | 2 +- arch/arm/boot/dts/at91sam9rl.dtsi | 2 +- arch/arm/boot/dts/at91sam9x5.dtsi | 2 +- arch/arm/boot/dts/sama5d2.dtsi | 2 +- arch/arm/boot/dts/sama5d3.dtsi | 2 +- arch/arm/boot/dts/sama5d4.dtsi | 2 +- arch/arm/mach-at91/Kconfig | 1 + arch/arm/mach-at91/at91rm9200.c | 2 - arch/arm/mach-at91/at91sam9.c | 2 - arch/arm/mach-at91/generic.h | 13 +- arch/arm/mach-at91/pm.c | 69 ++++- arch/arm/mach-at91/sama5.c | 2 +- drivers/clk/at91/clk-h32mx.c | 33 ++- drivers/clk/at91/clk-main.c | 430 ++++++++++++++++++-------------- drivers/clk/at91/clk-master.c | 134 ++++++---- drivers/clk/at91/clk-peripheral.c | 131 ++++++---- drivers/clk/at91/clk-pll.c | 190 +++++++++----- drivers/clk/at91/clk-plldiv.c | 42 ++-- drivers/clk/at91/clk-programmable.c | 92 ++++--- drivers/clk/at91/clk-slow.c | 27 +- drivers/clk/at91/clk-smd.c | 54 ++-- drivers/clk/at91/clk-system.c | 129 +++++++--- drivers/clk/at91/clk-usb.c | 121 +++++---- drivers/clk/at91/clk-utmi.c | 116 ++++++--- drivers/clk/at91/pmc.c | 300 +++++----------------- drivers/clk/at91/pmc.h | 93 +------ drivers/usb/gadget/udc/atmel_usba_udc.c | 20 +- drivers/usb/gadget/udc/atmel_usba_udc.h | 2 + include/linux/clk/at91_pmc.h | 12 - 34 files changed, 1069 insertions(+), 968 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/