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2012-01-24sh: clkfwk: bugfix: use clk_reparent() for div6 clocksKuninori Morimoto1-1/+1
Various problems will happen if clk parent was set up directly. it should use clk_reparent() Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-11Merge tag 'rmobile-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds1-82/+94
SH/R-Mobile updates for 3.3 merge window. * tag 'rmobile-for-linus' of git://github.com/pmundt/linux-sh: (32 commits) arm: mach-shmobile: add a resource name for shdma ARM: mach-shmobile: r8a7779 SMP support V3 ARM: mach-shmobile: Add kota2 defconfig. ARM: mach-shmobile: Add marzen defconfig. ARM: mach-shmobile: r8a7779 power domain support V2 ARM: mach-shmobile: Fix up marzen build for recent GIC changes. ARM: mach-shmobile: r8a7779 PFC function support ARM: mach-shmobile: Flush caches in platform_cpu_die() ARM: mach-shmobile: Allow SoC specific CPU kill code ARM: mach-shmobile: Fix headsmp.S code to use CPUINIT ARM: mach-shmobile: clock-r8a7779: clkz/clkzs support ARM: mach-shmobile: clock-r8a7779: add DIV4 clock support ARM: mach-shmobile: Marzen LAN89218 support ARM: mach-shmobile: Marzen SCIF2/SCIF4 support ARM: mach-shmobile: r8a7779 PFC GPIO-only support V2 ARM: mach-shmobile: r8a7779 and Marzen base support V2 sh: pfc: Unlock register support sh: pfc: Variable bitfield width config register support sh: pfc: Add config_reg_helper() function sh: pfc: Convert index to field and value pair ...
2012-01-12Merge branch 'sh/pm-runtime' into sh-latestPaul Mundt1-8/+1
Conflicts: arch/sh/kernel/cpu/sh4a/clock-sh7723.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-12sh: also without PM_RUNTIME pm_runtime.o must be builtGuennadi Liakhovetski1-1/+1
When CONFIG_PM_RUNTIME is off, drivers/sh/pm_runtime.o still has to be built on sh platforms, because then it provides means to statically switch on device PM clocks. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-10Merge branch 'common/clkfwk' into sh-latestPaul Mundt1-2/+2
2012-01-10sh: clkfwk: sh_clk_init_parent() should be called after clk_register()Kuninori Morimoto1-2/+2
sh_clk_init_parent() are using clk->mapped_reg which is mapped in clk_register() Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09Merge branch 'master' of ↵Paul Mundt3-25/+35
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest Conflicts: arch/arm/mach-shmobile/clock-sh73a0.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09Merge branches 'common/pfc' and 'common/clkfwk' into rmobile/marzenPaul Mundt3-109/+250
Conflicts: arch/arm/mach-shmobile/clock-sh73a0.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09sh: pfc: Unlock register supportMagnus Damm1-12/+10
Add PFC support for a 32-bit unlock register. Needed to drive the r8a7779 PFC that comes with a funky PMMR register. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09sh: pfc: Variable bitfield width config register supportMagnus Damm1-11/+33
Add support for variable config reg hardware by adding the macro PINMUX_CFG_REG_VAR(). The width of each bitfield needs to be passed to the macro, and the correct space must be consumed by each bitfield in the enum table following the macro. Data registers still need to have fixed bitfields. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09sh: pfc: Add config_reg_helper() functionMagnus Damm1-44/+32
Add a helper function for shared config reg access calculations. This allows us to reduce the amount of duplicated code, and at the same time prepare for a common place for future variable bitwidth config reg support. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09sh: pfc: Convert index to field and value pairMagnus Damm1-27/+18
Update the way the PFC code is passing bitfield selection between configure register functions. Convert the code from using index only to bitfield number and selected value. First step towards future variable bitfield width support. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-09sh: pfc: Add gpio_read_bit() for data register accessMagnus Damm1-1/+14
Introduce gpio_read_bit() for data register read access and modify sh_gpio_get_value() to make use of the new function instead of gpio_read_reg(). The purpose of this change is to update the code to only use the gpio_read_reg() function for config register access. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-08Merge branch 'pm-for-linus' of ↵Linus Torvalds2-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
2012-01-06Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman3-25/+26
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-25PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resumeRafael J. Wysocki2-0/+9
Since the SH7372's INTCS in included into syscore suspend/resume, which causes the chip to be accessed when PM domains have been turned off during system suspend, the A4R domain containing the INTCS has to stay on during system sleep, which is suboptimal from the power consumption point of view. For this reason, add a new INTC flag, skip_syscore_suspend, to mark the INTCS for intc_suspend() and intc_resume(), so that they don't touch it. This allows the A4R domain to be turned off during system suspend and the INTCS state is resrored during system resume by the A4R's "power on" code. Suggested-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Magnus Damm <damm@opensource.se>
2011-12-21sh: intc - convert sysdev_class to a regular subsystemKay Sievers3-25/+26
After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-09Merge branches 'common/clkfwk', 'common/pfc' and 'common/serial-rework' into ↵Paul Mundt3-47/+176
sh-latest
2011-12-09sh: pfc: ioremap() supportMagnus Damm1-24/+113
Add support for non-entity mapped PFC registers through the use of struct resource and ioremap()/iounmap(). The PFC main data structure gets updated with a pointer to a struct resources array that point out all register windows used by the PFC instance. The register definitions are kept as physical addresses but the PFC code will do transparent conversion into virtual addresses whenever register windows are specified using with struct resource. To introduce as little performance penalty as possible the virtual address of each data register is cached in memory. The virtual address of each configuration register is however calculated during run time. This because the configuration is considered slow path so focus is instead put on keeping memory foot print as small as possible. The PFC register access code is in this patch updated from __raw_readN() / __raw_writeN() into ioreadN() / iowriteN(). This patch is needed to support the PFC block in r8a7779. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-12-09sh: use ioread32/iowrite32 and mapped_reg for div6Magnus Damm1-10/+10
Convert the CPG DIV6 helper code to use the new mapped_reg together with ioread32() and iowrite32(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-12-09sh: use ioread32/iowrite32 and mapped_reg for div4Magnus Damm1-8/+8
Convert the CPG DIV4 helper code to use the new mapped_reg together with ioread32() and iowrite32(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-12-09sh: use ioread32/iowrite32 and mapped_reg for mstp32Magnus Damm1-4/+4
Convert the CPG MSTP32 helper code to use the new mapped_reg together with ioread32() and iowrite32(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-12-09sh: extend clock struct with mapped_reg memberMagnus Damm1-2/+7
Add a "mapped_reg" member to struct clk and use that to keep the ioremapped register based on enable_reg. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-24sh: clkfwk: setup clock parent from current register valueKuninori Morimoto1-0/+35
Some clocks can select its parent clock by CPG register. But it might have been modified by boot-loader or something. This patch removed fixed initial parent clock, and setup it from their current register settings. It works on div6 reparent clocks for now. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-18sh: Kill off remaining private runtime PM bits.Paul Mundt1-11/+1
This kills of the now unused runtime PM stub in favour of the generic one. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-18sh: sh7723: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski1-1/+2
Switch sh7723 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-18sh: sh7722: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski1-0/+1
Switch sh7722 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-18sh: sh7724: use runtime PM implementation, common with arm/mach-shmobileGuennadi Liakhovetski1-0/+1
Switch sh7724 to a runtime PM implementation, common with ARM-based sh-mobile platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linusPaul Mundt8-88/+99
2011-11-11sh: clkfwk: Kill off remaining debugfs cruft.Paul Mundt1-87/+0
Now that all of the named string association with clocks has been migrated to clkdev lookups there's no meaningful named topology that can be constructed for a debugfs tree view. Get rid of the left over bits, and shrink struct clk a bit in the process. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11drivers: sh: Kill off dead pathname for runtime PM stub.Paul Mundt1-3/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-11drivers: sh: Generalize runtime PM platform stub.Paul Mundt2-0/+75
The runtime PM platform support stub in use by ARM-based SH/R-Mobile platforms contains nothing that's specifically ARM-related and instead of wholly generic to anything using the clock framework. The recent runtime PM changes interact rather badly with the lazy disabling of clocks late in the boot process through the clock framework, leading to situations where the runtime suspend/resume paths are entered without a clock being actively driven due to having been lazily gated off. In order to correct this we can trivially tie in the aforementioned stub as a general fallback for all SH platforms that don't presently have their own runtime PM implementations (the corner case being SH-based SH-Mobile platforms, which have their own stub through the hwblk API -- which in turn has bitrotted and will be subsequently adapted to use the same stub as everyone else), regardless of whether the platforms choose to define power domains of their own or not. This fixes up regressions for clock framework users who also build in runtime PM support without any specific power domains of their own, which was previously causing the serial console to be lost when warring with lazy clock disabling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds4-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-05sh: intc: Allow triggering on both edges for ARM SoCsMagnus Damm1-1/+1
Enable IRQ_TYPE_EDGE_BOTH on all R/SH-Mobile ARM SoCs. This hardware feature is supported by sh7367, sh7377, sh7372 and sh73a0. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-05sh: clkfwk: add clk_rate_mult_range_round()Kuninori Morimoto1-0/+20
This provides a clk_rate_mult_range_round() helper for use by some of the CPG PLL ranged multipliers, following the same approach as used by the div ranges. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-31drivers/sh: Add export.h for EXPORT_SYMBOL to intc/virq.cPaul Gortmaker1-0/+1
This is exporting symbols and will fail to build once we remove the implicit presence of module.h Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31sh: Add export.h to arch/sh specific files as required.Paul Gortmaker1-0/+1
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31sh: Add module.h to arch/sh specific files as required.Paul Gortmaker2-0/+2
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31sh: fix implicit use of stat.h in arch/sh specific filesPaul Gortmaker1-0/+1
To fix: arch/sh/drivers/dma/dma-sysfs.c:45:8: error: 'S_IRUGO' undeclared here (not in a function) arch/sh/drivers/dma/dma-sysfs.c:75:8: error: 'S_IWUSR' undeclared here (not in a function) make[4]: *** [arch/sh/drivers/dma/dma-sysfs.o] Error 1 drivers/sh/intc/core.c:449: error: 'S_IRUGO' undeclared here (not in a function) make[5]: *** [drivers/sh/intc/core.o] Error 1 Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-28sh: userimask.c needs linux/stat.hNobuhiro Iwamatsu1-0/+1
This fix the problem that S_IRUSR and S_IWUSR are not solved in userimask.c. ----- CC drivers/usb/host/r8a66597-hcd.o drivers/sh/intc/userimask.c:57: error: ‘S_IRUSR’ undeclared here (not in a function) drivers/sh/intc/userimask.c:57: error: ‘S_IWUSR’ undeclared here (not in a function) CC drivers/watchdog/shwdt.o ----- Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-28sh: pfc: Add GPIO IRQ supportMagnus Damm1-0/+27
Add GPIO IRQ support to the shared PFC code in drivers/sh/pfc.c The enums pointed out by a certain GPIO will be matched against a table for IRQ to enum mappings. Only the shared PFC code is updated by this patch. SoC specific changes are also needed to allow platforms to make use of this feature. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-28sh: pfc: get_config_reg() shift clean upMagnus Damm1-1/+1
Clean up the f_width shift code in get_config_reg(). Reported-by: Ryusuke Sakato <ryusuke.sakato.bx@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-28sh: intc: Add IRQ trigger bit field checkMagnus Damm1-2/+7
R-Mobile SoCs such as sh73a0 include PINT blocks in INTC that come with 2-bit IRQ trigger support. Add code to make sure the bit width is checked so 4-bit only modes like for instance EDGE_BOTH will fail for PINT. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-08Merge branch 'common/core' into sh-latestPaul Mundt1-0/+3
2011-08-01Merge branch 'sh-latest' of ↵Linus Torvalds1-2/+27
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x * 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: (39 commits) SH: static should be at beginning of declaration sh: move CLKDEV_xxx_ID macro to sh_clk.h sh: clock-shx3: add CLKDEV_ICK_ID for cleanup sh: clock-sh7786: add CLKDEV_ICK_ID for cleanup sh: clock-sh7785: add CLKDEV_ICK_ID for cleanup sh: clock-sh7757: add CLKDEV_ICK_ID for cleanup sh: clock-sh7366: add CLKDEV_ICK_ID for cleanup sh: clock-sh7343: add CLKDEV_ICK_ID for cleanup sh: clock-sh7722: add CLKDEV_ICK_ID for cleanup sh: clock-sh7724: add CLKDEV_ICK_ID for cleanup sh: clock-sh7366: modify I2C clock settings sh: clock-sh7343: modify I2C clock settings sh: clock-sh7723: modify I2C clock settings sh: clock-sh7722: modify I2C clock settings sh: clock-sh7724: modify I2C clock settings serial: sh-sci: Fix up pretty name printing for port IRQs. serial: sh-sci: Kill off per-port enable/disable callbacks. serial: sh-sci: Add missing module description/author bits. serial: sh-sci: Regtype probing doesn't need to be fatal. sh: Tidy up pre-clkdev clk_get() error handling. ...
2011-07-21sh: intc: enable both edges GPIO interrupts on sh7372Magnus Damm1-0/+3
IRQ-capable GPIOs on sh7372 can be configured to produce interrupts on both edges. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-20switch assorted clock drivers to debugfs_remove_recursive()Al Viro1-5/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-06-24sh: clkfwk: Convert to IS_ERR_OR_NULL.Paul Mundt1-1/+1
Trivial cleanup. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-24drivers: sh: late disabling of clocks V2Magnus Damm1-1/+26
This V2 patch changes the clock disabling behavior during boot. Two different changes are made: 1) Delay disabling of clocks until late in the boot process. This fixes an existing issue where in-use clocks without software reference are disabled by mistake during boot. One example of this is the handling of the Mackerel serial console output that shares clock with the I2C controller. 2) Write out the "disabled" state to the hardware for clocks that not have been used by the kernel. In other words, make sure so far unused clocks actually get turned off. Signed-off-by: Magnus Damm <damm@opensource.se> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-14drivers: sh: resume enabled clocks fixMagnus Damm1-1/+1
Extend the SH / SH-Mobile ARM clock framework to only resume clocks that have been enabled. Without this fix divide-by-zero is triggering on sh7372 FSIDIV during system wide resume of Suspend-to-RAM. Signed-off-by: Magnus Damm <damm@opensource.se> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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