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path: root/include/linux/mfd/syscon.h
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2013-10-23mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabledPeter Chen
Some platforms may not define CONFIG_MFD_SYSCON (or haven't syscon), it can fix build error for these platforms. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-04-09mfd: syscon: Add missing struct device_node declarationSylwester Nawrocki
syscon.h header uses struct device_node in functions' declarations without declaring it. This causes compilation warnings like: include/linux/mfd/syscon.h:20: warning: ‘struct device_node’ declared inside parameter list include/linux/mfd/syscon.h:20: warning: its scope is only this definition or declaration, which is probably not what you want Fix it by adding a forward declaration of struct device_node. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-05mfd: syscon: Add non-DT supportAlexander Shiyan
This patch allow using syscon driver from the platform data, i.e. possibility using driver on systems without oftree support. For search syscon device from the client drivers, "syscon_regmap_lookup_by_pdevname" function was added. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-17mfd: Add syscon driver based on regmapDong Aisheng
Add regmap based syscon driver. This is usually used for access misc bits in registers which does not belong to a specific module, for example, IMX IOMUXC GPR and ANATOP. With this driver, client can use generic regmap API to access registers which are registered into syscon. Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>