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* sh: pfc: Add GPIO IRQ supportMagnus Damm2011-10-281-0/+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>
* sh: pfc: get_config_reg() shift clean upMagnus Damm2011-10-281-1/+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>
* sh: pfc: Fix up BUG() triggered by gpiolib debugfs lookups.Paul Mundt2010-10-041-4/+2
| | | | | | | | | | | | The gpiolib debugfs entry takes a hammer approach and iterates over all of the potential GPIOs, regardless of their type. The SH PFC code on the other hand contains a variable mismash of input/output/function types spread out sparsely, leading to situations where the debug code can trigger an out of range enum for the type. Since we already have an error path for out of range enums, we can just hand that up to the higher level instead of the current BUG() behaviour. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: support pinmux deregistration.Paul Mundt2010-10-041-1/+10
| | | | | | | | | | Presently the pinmux code is a one-way thing, but there's nothing preventing an unregistration if no one has grabbed any of the pins. This will permit us to save a bit of memory on systems that require pin demux for certain peripherals in the case where registration of those peripherals fails, or they are otherwise not attached to the system. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: update PFC to allow any enum in MARK listsMagnus Damm2010-01-201-5/+32
| | | | | | | | | | | This patch updates the PFC code with some clarifying comments together with a functional change. The change allows function type of GPIO to select any type of enum in their MARK lists. Without this patch only function type of enums are allowed in MARK lists. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: Fixup type mismatch in debug printks.Paul Mundt2009-12-091-1/+1
| | | | | | | !!value works out to an int while we were still using %ld, so fix this up and shut gcc up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: pr_info() -> pr_debug() cleanups.Paul Mundt2009-11-301-16/+9
| | | | | | | | | For some reason this was using pr_info() nested under an ifdef DEBUG. While this is appealing in that it circumvents the effort necessary to change ones loglevel, it's not terribly practical. So, convert it over to pr_debug(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines.Paul Mundt2009-11-301-9/+9
| | | | | | | | Now that the PFC code is exposed for other architectures, use the common __raw_xxx() routines instead of the ctrl_xxx() ones. This will be needed for ARM-based SH-Mobiles amongst others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Break out SuperH PFC codeMagnus Damm2009-11-301-0/+584
This file breaks out the SuperH PFC code from arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h to drivers/sh/pfc.c + include/linux/sh_pfc.h. Similar to the INTC stuff. The non-SuperH specific file location makes it possible to share the code between multiple architectures. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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