0d37899363b0e5486f8800231b7edd75e8b60942 |
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03-Sep-2014 |
Geert Uytterhoeven <geert+renesas@glider.be> |
pinctrl: generic: Fix PIN_CONFIG_DRIVE_OPEN_SOURCE source/drain doc mismatch PIN_CONFIG_DRIVE_OPEN_SOURCE enables open source, not open drain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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8ba3f4d00078e7a49c60c0bd6298f29402c3a0a0 |
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11-Dec-2013 |
Sherman Yin <syin@broadcom.com> |
pinctrl: Adds slew-rate, input-enable/disable This commit adds slew-rate and input-enable/disable support for pinconf -generic. Signed-off-by: Sherman Yin <syin@broadcom.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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e9c9489f1077880cb8332f3e1600bf8edba3e86a |
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25-Nov-2013 |
Linus Walleij <linus.walleij@linaro.org> |
pinctrl: provide documentation pointer The PIN_CONFIG_OUTPUT parameter is really tricky to understand and needs an explicit pointer to the documentation. Cc: Tomasz Figa <t.figa@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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3287c24088abded9f111ca797fdd36f86912d199 |
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21-Aug-2013 |
Laxman Dewangan <ldewangan@nvidia.com> |
pinctrl: utils : add support to pass config type in generic util APIs Add support to pass the config type like GROUP or PIN when using the utils or generic pin configuration APIs. This will make the APIs more generic. Added additional inline APIs such that it can be use directly as callback for the pinctrl_ops. Changes from V1: - Remove separate implementation for pins and group for pinctrl_utils_dt_free_map and improve this function to support both i.e. PINS and GROUPs. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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0d74d4a161c9f9870039af414b712552c0ed6dfb |
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15-Aug-2013 |
Linus Walleij <linus.walleij@linaro.org> |
pinctrl: add includes and ifdefs for non-DT builds Commit e81c8f18afc4fdd6e34d8c83814b8b5134dbb30f "pinctrl: pinconf-generic: add generic APIs for mapping pinctrl node" Added function prototypes with implicit dependencies on other header files causing build warnings like this: In file included from arch/arm/mach-ux500/board-mop500-pins.c:12:0: include/linux/pinctrl/pinconf-generic.h:142:3: warning: 'struct device_node' declared inside parameter list [enabled by default] unsigned *reserved_maps, unsigned *num_maps); ^ include/linux/pinctrl/pinconf-generic.h:142:3: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] include/linux/pinctrl/pinconf-generic.h:142:3: warning: 'struct pinctrl_dev' declared inside parameter list [enabled by default] include/linux/pinctrl/pinconf-generic.h:145:3: warning: 'struct device_node' declared inside parameter list [enabled by default] unsigned *num_maps); ^ Let's just add ifdefs for non-DT systems (the actual code is already ifdefed) and #include <linux/device.h> to get the most important structs and forward-declare the pinctrl core structs. Reported-by: Olof Johansson <olof@lixom.net> Cc: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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e81c8f18afc4fdd6e34d8c83814b8b5134dbb30f |
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06-Aug-2013 |
Laxman Dewangan <ldewangan@nvidia.com> |
pinctrl: pinconf-generic: add generic APIs for mapping pinctrl node Add generic APIs to map the DT node and its sub node in pinconf generic driver. These APIs can be used from driver to parse the DT node who uses the pinconf generic APIs for defining their nodes. Changes from V1: - Add generic property for pins and functions in pinconf-generic. - Add APIs to map the DT and subnode. - Move common utils APIs to the pinctrl-utils from this file. - Update the binding document accordingly. Changes from V2: - Rebased the pinctrl binding doc on top of Stephen's cleanup. - Rename properties "pinctrl-pins" and "pinctrl-function" to "pins" and "function". Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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256aeb648741bf095e884793862d3dfa6b1c1fb5 |
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25-Jun-2013 |
Heiko Stübner <heiko@sntech.de> |
pinctrl: set unit for debounce time pinconfig to usec Currently the debounce time pinconfig option uses an unspecified "time units" unit. As pinconfig options should use SI units and a real unit is also necessary for generic dt bindings, change it to usec. Currently no driver is using the generic pinconfig option for this, so the unit change is safe to do. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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70637a6dcaa6e4cb707d0d50a7ea448f13438786 |
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25-Jun-2013 |
Heiko Stübner <heiko@sntech.de> |
pinctrl: more clarifications for generic pull configs PULL_PIN_DEFAULT is meant for hardware completely hiding any pull settings from the driver, so that it's really only possible to turn the pull on or off, but it not being possible to determine any pull settings from software. Also the binding-documentation for the pull arguments did not match the changes to the expected values. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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5ca3353bcee929c3b7bbf39f79038842f443f01a |
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16-Jun-2013 |
Linus Walleij <linus.walleij@linaro.org> |
pinctrl: establish pull-up/pull-down terminology It is counter-intuitive to have "0" mean disable in a boolean manner for electronic properties of pins such as pull-up and pull-down. Therefore, define that a pull-up/pull-down argument of 0 to such a generic option means that the pin is short-circuited to VDD or GROUND. Pull disablement shall be done using PIN_CONFIG_BIAS_DISABLE. Cc: James Hogan <james.hogan@imgtec.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by Heiko Stuebner <heiko@sntech.de> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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7970cb770dffa23cb20a36f46602e688e075f5d9 |
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06-Jun-2013 |
Heiko Stübner <heiko@sntech.de> |
pinctrl: add pinconf-generic define for a pin-default pull There exist controllers that don't support to set the pull to up or down separately but instead automatically set the pull direction based on embedded knowledge inside the controller, for example depending on the selected mux function of the pin. Therefore this patch adds another config option to use this default pull-state for a pin where it is not possible to know or decide if the pin will be pulled up or down. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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a2df4269cad79635201587c5c5404f0b1cb0b05c |
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24-May-2013 |
James Hogan <james.hogan@imgtec.com> |
pinconf-generic: add BIAS_BUS_HOLD pinconf Add a new PIN_CONFIG_BIAS_BUS_HOLD pin configuration for a bus holder pin mode (also known as bus keeper, or repeater). This is a weak latch which drives the last value on a tristate bus. Another device on the bus can drive the bus high or low before going tristate to change the value driven by the pin. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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63ad9cbff5896dadfee510f631ffcb0176984722 |
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23-Apr-2013 |
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> |
pinctrl: generic: Fix typos and clarify comments Drive strength controls both sink and source currents, clarify the description accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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ea27c396174d5a4576853cbe7aeabeb9f7cba6e1 |
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11-Feb-2013 |
Haojian Zhuang <haojian.zhuang@linaro.org> |
pinctrl: generic: rename input schmitt disable Rename PIN_CONFIG_INPUT_SCHMITT_DISABLE to PIN_CONFIG_INPUT_SCHMITT_ENABLE. It's used to make it more generialize. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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684697cbbcd076b8fde78d8863e341700533b542 |
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18-Jan-2013 |
Haojian Zhuang <haojian.zhuang@linaro.org> |
pinctrl: generic: add slew rate config parameter Add PIN_CONFIG_SLEW_RATE parameter into pinconf-generic driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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f868ef995b32f0f08d7b6ce700bbe25de3ad65ac |
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08-Jan-2013 |
Maxime Ripard <maxime.ripard@free-electrons.com> |
pinctrl: pinconf-generic: add drive strength parameter Some pin configurations IP allows to set the current output to the pin. This patch adds such a parameter to the pinconf-generic mechanism. This parameter takes as argument the drive strength in mA. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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483f33f63c1cb3c6becb465bac7b75d7ff5e3b8f |
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04-Jan-2013 |
Linus Walleij <linus.walleij@linaro.org> |
pinctrl: add pinconf-generic defines for output This adds a definition of a generic output configuration for a certain pin when using the generic pin configuration library. Whereas driving pins low/high is usually a GPIO business, you may want to set up pins into a default state using hogs, and never touch them again. This helps out with that scenario. Based on a patch from Patrice Chotard. Signed-off-by: Patrice Chotard <patrice.chotard@stericsson.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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2ccb0bcfb0dd2001b1a40048c1e407cd9a78bd3d |
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15-Nov-2012 |
Haojian Zhuang <haojian.zhuang@gmail.com> |
pinctrl: generic: add input schmitt disable parameter In Marvell PXA/MMP silicons, input schmitt disable value is 0x40, not 0. So append new config parameter -- input schmitt disable. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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394349f7789fdfcdc74b61afcac84046535c40b7 |
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24-Nov-2011 |
Linus Walleij <linus.walleij@linaro.org> |
pinctrl: introduce generic pin config This is a split-off from the earlier patch set which adds generic pin configuration for the pin controllers that want it. Since we may have a system with mixed generic and custom pin controllers, we pass a boolean in the pin controller ops vtable to indicate if it is generic. ChangeLog v1->v5: - Follow parent patch versioning number system. - Document the semantic meaning of return values from pin config get functions, so we can iterate over pins and check their properties from debugfs as part of the generic config code. - Use proper cast functions in the generic debugfs pin config file. - Expand generic config to optionally cover groups too. ChangeLog v5->v6: - Update to match underlying changes. ChangeLog v6->v7: - Drop DRIVE_OFF parameter, use bias high impedance for this - Delete argument for drive modes push-pull, od and os. These are now just state transitions. - Delete slew rate rising/falling due to discussions on on proper semantics - Drop config wakeup, struct irq_chip does this for now, add back if need be. - Set PIN_CONFIG_END to 0x7fff making room for custom config parameters from 0x8000 and up. - Prefix accessor functions with pinconf_
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