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path: root/drivers/sh/pfc/core.c
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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: 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>
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>
2012-07-10sh: 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>