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2013-01-29Merge branch 'pfc' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/sh-pinmux From Simon Horman. Based on agreement between me, Paul Mundt, Linus Walleij and Simon, we're mergning this large branch of pinctrl conversion through arm-soc, even though it contains the corresponding conversions for arch/sh. Main reason for this is tight dependencies (that will now mostly be broken) between the arch/sh and mach-shmobile implementations. There will be more of this in 3.10 to do device-tree bindings, but this is the initial conversion. * 'pfc' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (80 commits) sh-pfc: Move sh_pfc.h from include/linux/ to driver directory sh-pfc: Remove pinmux_info definition sh: Remove unused sh_pfc_register_info() function sh: shx3: pinmux: Use driver-provided pinmux info sh: sh7786: pinmux: Use driver-provided pinmux info sh: sh7785: pinmux: Use driver-provided pinmux info sh: sh7757: pinmux: Use driver-provided pinmux info sh: sh7734: pinmux: Use driver-provided pinmux info sh: sh7724: pinmux: Use driver-provided pinmux info sh: sh7723: pinmux: Use driver-provided pinmux info sh: sh7722: pinmux: Use driver-provided pinmux info sh: sh7720: pinmux: Use driver-provided pinmux info sh: sh7269: pinmux: Use driver-provided pinmux info sh: sh7264: pinmux: Use driver-provided pinmux info sh: sh7203: pinmux: Use driver-provided pinmux info ARM: shmobile: sh73a0: Use driver-provided pinmux info ARM: shmobile: sh7372: Use driver-provided pinmux info ARM: shmobile: r8a7779: Use driver-provided pinmux info ARM: shmobile: r8a7740: Use driver-provided pinmux info sh-pfc: Add shx3 pinmux support ... Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-25sh-pfc: Move driver from drivers/sh/ to drivers/pinctrl/Laurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove unused resource and num_resources platform data fieldsLaurent Pinchart
The fields are now unused, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove platform device registrationLaurent Pinchart
The PFC platform device is now registered by arch code, remove the legacy registration mechanism. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Support passing resources through platform deviceLaurent Pinchart
Resources should be passed through the platform device, not through platform data. Default to platform device resources and fall back to platform data resources if not available. Support for platform data resources will be removed when arch code will be converted. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Split platform device and platform driver registrationLaurent Pinchart
Move platform driver registration to a static postcore initcall. This prepares the move of platform device registration to arch code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use sh_pfc_ namespace prefix through the whole driverLaurent Pinchart
Most of the function and structure names are prefixed by sh_pfc_. Fix the ones that are not to avoid namespace clashes (especially for functions that start with gpio_). Not included in this patch are the platform data structures, those will be reworked later. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Sort headers alphabeticallyLaurent Pinchart
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove check for impossible error conditionLaurent Pinchart
The pfc pointer can't be NULL in the get and set value functions, remove the error check. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Let the compiler decide whether to inline functionsLaurent Pinchart
The compiler should be smart enough to automatically inline static functions that are called from a single location. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use devm_ioremap_nocache()Laurent Pinchart
Replace probe-time ioremap_nocache() call with devm_ioremap_nocache() and get rid of the corresponding iounmap() call. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use devm_kzalloc()Laurent Pinchart
Replace probe-time kmalloc()/kzalloc() calls with devm_kzalloc() and get rid of the corresponding kfree() calls. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Move platform device and driver to the coreLaurent Pinchart
The pinctrl module registers both a platform device and a platform driver. The only purpose of this awkward construction is to have a device to pass to the pinctrl registration function. As a first step to get rid of this hack, move the platform device and driver from the pinctrl module to the core. The platform device will then be moved to arch code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Merge PFC core and gpioLaurent Pinchart
The PFC core calls the gpio module gpiochip registration in its register_sh_pfc() function, itself called at arch initialization time. If the gpio module isn't present then the gpiochip will never be registered. As the gpio module can only be present at arch initialization time if it's builtin, there's no point in allowing to build it as a module. Make it a boolean option, and initialize it synchronously with the core if selected. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Merge PFC core and pinctrlLaurent Pinchart
The PFC core is only used by the pinctrl and gpio modules. As the gpio module depends on the pinctrl module, the pinctrl module will always be present if the core gets used. There is thus no point in keeping core and pinctrl in two seperate modules. Merge them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Move private definitions and declarations to private headerLaurent Pinchart
Move all private structure definitions and function declarations from include/linux/sh_pfc.h to drivers/sh/pfc/core.h. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Split platform data from the sh_pfc structureLaurent Pinchart
Create a sh_pfc_platform_data structure to store platform data and reference it from the core sh_pfc structure. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-11sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6Kuninori Morimoto
764f4e4e33d18cde4dcaf8a0d860b749c6d6d08b (sh: clkfwk: Use shared sh_clk_div_enable/disable()) shared enable/disable funcions for div4/div6. But new sh_clk_div_enable() didn't care sh_clk_div_set_rate() which is required on div6 clock. This patch fixes it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2013-01-03Drivers: misc: remove __dev* attributes.Greg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13Merge branch 'soc4' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc2 Its a little embarrassing, but they all fix problems introduced in previous pull-requests for 3.8 that have been merged. * The three Revert patches back-out secondary CPU initialisation changes from Bastian Hecht which he as advised me are incorrect and break secondary CPU initialisation. * The clkfwk patch from Morimoto-san resolves a build warning. * 'soc4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: sh: clkfwk: fixup unsed variable warning Revert "ARM: shmobile: r8a7779: Replace modify_scu_cpu_psr with scu_power_mode" Revert "ARM: shmobile: sh73a0: Replace modify_scu_cpu_psr with scu_power_mode" Revert "ARM: shmobile: emev2: Replace modify_scu_cpu_psr with scu_power_mode" Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-13sh: clkfwk: fixup unsed variable warningKuninori Morimoto
This patch solves above warning ${LINUX}/drivers/sh/clk/cpg.c:404:6: warning: \ unused variable 'val' [-Wunused-variable] Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2012-11-12Merge branches 'depends/asoc', 'renesas/boards', 'renesas/soc' and ↵Arnd Bergmann
'renesas/soc2' into next/boards2 These are all dependencies for the next set of renesas shmobile board changes. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-11-08sh: clkfwk: add sh_clk_fsidiv_register()Kuninori Morimoto
This patch adds sh_clk_fsidiv_register() to share FSI-DIV clock code Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Simon Horman <horms@verge.net.au>
2012-10-15sh: Fix up more fallout from pointless ARM __iomem churn.Paul Mundt
It was already pointed out how to fix these cases before the offending patches were merged, but unsurprisingly, that didn't happen. As this change is entirely superfluous to begin with, simply shut things up by casting everything away. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-10-01Merge tag 'multiplatform' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM soc multiplatform enablement from Olof Johansson: "This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead." Fix conflicts as per Olof. * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: add v7 multi-platform defconfig ARM: msm: Move core.h contents into common.h ARM: highbank: call highbank_pm_init from .init_machine ARM: dtb: move all dtb targets to common Makefile ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: vexpress: convert to multi-platform ARM: initial multiplatform support ARM: mvebu: move armada-370-xp.h in mach dir ARM: vexpress: remove dependency on mach/* headers ARM: picoxcell: remove dependency on mach/* headers ARM: move all dtb targets out of Makefile.boot ARM: picoxcell: move debug macros to include/debug ARM: socfpga: move debug macros to include/debug ARM: mvebu: move debug macros to include/debug ARM: vexpress: move debug macros to include/debug ARM: highbank: move debug macros to include/debug ARM: move debug macros to common location ARM: make mach/gpio.h headers optional ...
2012-09-25sh: pfc: Fix up GPIO mux type reconfig case.Paul Mundt
Some drivers need to switch pin states between GPIO and pin function at runtime, which was inadvertently broken in the pinctrl driver for GPIOs being bound to a specific direction. This fixes up the request path to ensure that previously configured GPIOs don't cause us to inadvertently error out with an unsupported mux on reconfig, which in practice is primarily aimed at trapping pull-up/down users that have yet to be implemented under the new API. Fixes up regressions in the TPU PWM driver, amongst others. Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-09-18sh: pfc: Release spinlock in sh_pfc_gpio_request_enable() error pathLaurent Pinchart
The sh_pfc_gpio_request_enable() function acquires a spinlock but fails to release it before returning if the requested mux type is not supported. Fix this. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-09-14ARM: shmobile: move custom gpio functions to sh-gpio.hRob Herring
Move custom shmobile gpio code to a sh-gpio.h to remove the dependency on mach/gpio.h. shmobile always uses gpiolib, so we can remove __GPIOLIB_COMPLEX define from mach/gpio.h. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com>
2012-08-20sh: intc: Fix up multi-evt irq association.Paul Mundt
In the multi-evt case we were accidentally associating the parent IRQ, fix this up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-09sh: intc: Handle domain association for sparseirq pre-allocated vectors.Paul Mundt
Presently it's assumed that the irqdomain code handles the irq_desc allocation for us, but this isn't necessarily the case when we've pre-allocated IRQs via sparseirq. Previously we had a -EEXIST check in the code that attempted to trap these cases and simply update them in-place, but this behaviour was inadvertently lost in the transition to irqdomains. This simply restores the previous behaviour, first attempting to let the irqdomain core fetch the allocation for us, and falling back to an in-place domain association in the extant IRQ case. Fixes up regressions on platforms that pre-allocate legacy IRQs (specifically ARM-based SH-Mobile platforms, as SH stopped pre-allocating vectors some time ago). Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-01Merge branch 'common/irqdomain' into sh-latestPaul Mundt
2012-08-01sh: intc: initial irqdomain support.Paul Mundt
Trivial support for irq domains, using either a linear map or radix tree depending on the vector layout. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-01sh: pfc: Fix up init ordering mess.Paul Mundt
Commit ca5481c68e9fbcea62bb3c78ae6cccf99ca8fb73 ("sh: pfc: Rudimentary pinctrl-backed GPIO support.") introduced a regression for platforms that were doing early GPIO API calls (from arch_initcall() or earlier), leading to a situation where our two-stage registration logic would trip itself up and we'd -ENODEV out of the pinctrl registration path, resulting in endless -EPROBE_DEFER errors. Further lack of checking any sort of errors from gpio_request() resulted in boot time warnings, tripping on the FLAG_REQUESTED test-and-set in gpio_ensure_requested(). As it turns out there's no particular need to bother with the two-stage registration, as the platform bus is already available at the point that we have to start caring. As such, it's easiest to simply fold these together in to a single init path, the ordering of which is ensured through the platform's mux registration, as usual. Reported-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-25sh: pfc: Build fix for pinctrl_remove_gpio_range() changes.Paul Mundt
pinctrl_remove_gpio_range() is now handled by the pinctrl core in the unreg path for some reason, so use that instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-20Merge branch 'common/pinctrl' into sh-latestPaul Mundt
2012-07-20sh: pfc: pin config get/set support.Paul Mundt
This implements simple support for adjusting the pin config value via the pinctrl API. The pinconf-generic code is abandoned for now until we've got a chance to revamp the pinmux_type state tracking that's needed by legacy code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-20sh: pfc: Prefer DRV_NAME over KBUILD_MODNAME.Paul Mundt
While this code is still being shuffled around the KBUILD_MODNAME value isn't particularly useful, switch to something a bit more useful. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-17sh: pfc: pinctrl legacy group support.Paul Mundt
This follows the function support by simply doing 1 pin per group encapsulation in order to keep with legacy behaviour. This will be built on incrementally as SoCs define their own pin groups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-17sh: pfc: Ignore pinmux GPIOs with invalid enum IDs.Paul Mundt
If we encounter invalid entries in the pinmux GPIO range, make sure we've still got a dummy pin definition but don't otherwise map it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-17sh: pfc: Export pinctrl binding init symbol.Paul Mundt
symbol_request() requires the registration symbol to be exported, make sure it is. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-17sh: pfc: Error out on pinctrl init resolution failure.Paul Mundt
pinctrl support is required for correct operation, failure to locate the init routine is fatal. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-11sh: pfc: Make pr_fmt consistent across pfc drivers.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-11sh: pfc: pinctrl legacy function support.Paul Mundt
This maps out all of the function types to pinctrl function groups. Presently this is restricted to one pin per function to maintain compatability with legacy behaviour. This will be extended as groups are introduced and exiting users migrated. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-10sh: pfc: Rudimentary pinctrl-backed GPIO support.Paul Mundt
This begins the migration of the PFC core to the pinctrl subsystem. Initial support is very basic, with the bulk of the implementation simply being nopped out in such a way to allow registration with the pinctrl core to succeed. The gpio chip driver is stripped down considerably now relying purely on pinctrl API calls to manage the bulk of its operations. This provides a basis for further PFC refactoring, including decoupling pin functions from the GPIO API, establishing pin groups, and so forth. These will all be dealt with incrementally so as to introduce as few growing and migratory pains to tree-wide PFC pinmux users today. When the interfaces have been well established and in-tree users have been migrated off of the legacy interfaces it will be possible to strip down the core considerably, leading to eventual drivers/pinctrl rehoming. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-07-10sh: pfc: Shuffle PFC support core.Paul Mundt
This follows the intc/clk changes and shuffles the PFC support code under its own directory. This will facilitate better code sharing, and allow us to trim down the exported interface by quite a margin. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-21Merge branch 'common/pfc' into sh-latestPaul Mundt
2012-06-21sh: pfc: Verify pin type encoding size at build time.Paul Mundt
The encoding is tightly packed, and future changes (such as pinconf-generic support) can easily lead to a situation where we violate the encoding constraints and trample data bit/reg bits. This plugs in some sanity checks by way of a BUILD_BUG_ON() to blow up if we fail to fit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-20sh: pfc: Make gpio chip support optional where possible.Paul Mundt
This implements some Kconfig knobs for ensuring that the PFC gpio chip can be disabled or built as a module in the cases where it's optional, or forcibly enabled in cases where it's not. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-20sh: pfc: Split out gpio chip support.Paul Mundt
This implements a bit of rework for the PFC code, making the core itself slightly more pluggable and moving out the gpio chip handling completely. The API is preserved in such a way that platforms that depend on it for early configuration are still able to do so, while making it possible to migrate to alternate interfaces going forward. This is the first step of chainsawing necessary to support the pinctrl API, with the eventual goal being able to decouple pin function state from the gpio API while retaining gpio chip tie-in for gpio pin functions only, relying on the pinctrl/pinmux API for non-gpio function demux. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-20Merge branch 'sh/clkfwk' into sh-latestPaul Mundt
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