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Date: Fri, 19 Aug 2011 11:53:39 +0200 From: Linus Walleij <linus.walleij@...ricsson.com> To: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, Grant Likely <grant.likely@...retlab.ca> Cc: Lee Jones <lee.jones@...aro.org>, Stephen Warren <swarren@...dia.com>, Joe Perches <joe@...ches.com>, Russell King <linux@....linux.org.uk>, Linaro Dev <linaro-dev@...ts.linaro.org>, Linus Walleij <linus.walleij@...aro.org> Subject: [PATCH 0/4 v4] pin controller subsystem v4 From: Linus Walleij <linus.walleij@...aro.org> This is the fourth iteration of the pin controller subsystem, most changes are described in the first patch, copied here for reference: ChangeLog v3->v4: - Define a number space per controller instead of globally, Stephen and Grant requested the same thing so now maps need to define target controller, and the radix tree of pin descriptors is a property on each pin controller device. - Add a compulsory pinctrl device entry to the pinctrl mapping table. This must match the pinctrl device, like "pinctrl.0" - Split the file core.c in two: core.c and pinmux.c where the latter carry all pinmux stuff, the core is for generic pin control, and use local headers to access functionality between files. It is now possible to implement a "blank" pin controller without pinmux capabilities. This split will make new additions like pindrive.c, pinbias.c etc possible for combined drivers and chunks of functionality which is a GoodThing(TM). - Rewrite the interaction with the GPIO subsystem - the pin controller descriptor now handles this by defining an offset into the GPIO numberspace for its handled pin range. This is used to look up the apropriate pin controller for a GPIO pin. Then that specific GPIO range is matched 1-1 for the target controller instance. - Fixed a number of review comments from Joe Perches. - Broke out a header file pinctrl.h for the core pin handling stuff that will be reused by other stuff than pinmux. - Fixed some erroneous EXPORT() stuff. - Remove mispatched U300 Kconfig and Makefile entries - Fixed a number of review comments from Stephen Warren, not all of them - still WIP. But I think the new mapping that will specify which function goes to which pin mux controller address 50% of your concerns (else beat me up). Linus Walleij (4): drivers: create a pinmux subsystem v4 pinmux: add a driver for the U300 pinmux amba: request muxing for PrimeCell devices mach-u300: activate pinmux driver, delete old padmux driver Documentation/ABI/testing/sysfs-class-pinmux | 11 + Documentation/pinctrl.txt | 512 +++++++++++++++++++ MAINTAINERS | 5 + arch/arm/mach-u300/Kconfig | 2 + arch/arm/mach-u300/Makefile | 2 +- arch/arm/mach-u300/core.c | 31 ++- arch/arm/mach-u300/include/mach/syscon.h | 136 ----- arch/arm/mach-u300/mmc.c | 16 - arch/arm/mach-u300/padmux.c | 367 -------------- arch/arm/mach-u300/padmux.h | 39 -- arch/arm/mach-u300/spi.c | 20 - drivers/Kconfig | 4 + drivers/Makefile | 2 + drivers/amba/bus.c | 49 ++- drivers/pinctrl/Kconfig | 36 ++ drivers/pinctrl/Makefile | 7 + drivers/pinctrl/core.c | 437 ++++++++++++++++ drivers/pinctrl/core.h | 22 + drivers/pinctrl/pinmux-u300.c | 421 ++++++++++++++++ drivers/pinctrl/pinmux-u300.h | 141 ++++++ drivers/pinctrl/pinmux.c | 700 ++++++++++++++++++++++++++ drivers/pinctrl/pinmux.h | 4 + include/linux/amba/bus.h | 2 + include/linux/pinctrl/machine.h | 62 +++ include/linux/pinctrl/pinctrl.h | 120 +++++ include/linux/pinctrl/pinmux.h | 122 +++++ 26 files changed, 2687 insertions(+), 583 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-pinmux create mode 100644 Documentation/pinctrl.txt delete mode 100644 arch/arm/mach-u300/padmux.c delete mode 100644 arch/arm/mach-u300/padmux.h create mode 100644 drivers/pinctrl/Kconfig create mode 100644 drivers/pinctrl/Makefile create mode 100644 drivers/pinctrl/core.c create mode 100644 drivers/pinctrl/core.h create mode 100644 drivers/pinctrl/pinmux-u300.c create mode 100644 drivers/pinctrl/pinmux-u300.h create mode 100644 drivers/pinctrl/pinmux.c create mode 100644 drivers/pinctrl/pinmux.h create mode 100644 include/linux/pinctrl/machine.h create mode 100644 include/linux/pinctrl/pinctrl.h create mode 100644 include/linux/pinctrl/pinmux.h -- 1.7.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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