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author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-10-24 23:38:58 +0200 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2012-11-11 19:05:57 +0100 |
commit | 06763c741b0a19160482c9b34e5bbc3e50dba79a (patch) | |
tree | ddb63e13898f4dc1957b2250517f97e0a4030d08 /drivers/pinctrl/pinctrl-mvebu.h | |
parent | de1d76258f438414633cb92cb1a195ba3835972c (diff) | |
download | op-kernel-dev-06763c741b0a19160482c9b34e5bbc3e50dba79a.zip op-kernel-dev-06763c741b0a19160482c9b34e5bbc3e50dba79a.tar.gz |
pinctrl: mvebu: move to its own directory
Like the spear platform, the mvebu platform has multiple files: one
core file, and then one file per SoC family. More files will be added
later, as support for mach-orion5x and mach-mv78xx0 SoCs is added to
pinctrl-mvebu. For those reasons, having a separate subdirectory,
drivers/pinctrl/mvebu/ makes sense, and it had already been suggested
by Linus Wallej when the driver was originally submitted.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-mvebu.h')
-rw-r--r-- | drivers/pinctrl/pinctrl-mvebu.h | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/drivers/pinctrl/pinctrl-mvebu.h b/drivers/pinctrl/pinctrl-mvebu.h deleted file mode 100644 index 90bd3be..0000000 --- a/drivers/pinctrl/pinctrl-mvebu.h +++ /dev/null @@ -1,192 +0,0 @@ -/* - * Marvell MVEBU pinctrl driver - * - * Authors: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> - * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __PINCTRL_MVEBU_H__ -#define __PINCTRL_MVEBU_H__ - -/** - * struct mvebu_mpp_ctrl - describe a mpp control - * @name: name of the control group - * @pid: first pin id handled by this control - * @npins: number of pins controlled by this control - * @mpp_get: (optional) special function to get mpp setting - * @mpp_set: (optional) special function to set mpp setting - * @mpp_gpio_req: (optional) special function to request gpio - * @mpp_gpio_dir: (optional) special function to set gpio direction - * - * A mpp_ctrl describes a muxable unit, e.g. pin, group of pins, or - * internal function, inside the SoC. Each muxable unit can be switched - * between two or more different settings, e.g. assign mpp pin 13 to - * uart1 or sata. - * - * If optional mpp_get/_set functions are set these are used to get/set - * a specific mode. Otherwise it is assumed that the mpp control is based - * on 4-bit groups in subsequent registers. The optional mpp_gpio_req/_dir - * functions can be used to allow pin settings with varying gpio pins. - */ -struct mvebu_mpp_ctrl { - const char *name; - u8 pid; - u8 npins; - unsigned *pins; - int (*mpp_get)(struct mvebu_mpp_ctrl *ctrl, unsigned long *config); - int (*mpp_set)(struct mvebu_mpp_ctrl *ctrl, unsigned long config); - int (*mpp_gpio_req)(struct mvebu_mpp_ctrl *ctrl, u8 pid); - int (*mpp_gpio_dir)(struct mvebu_mpp_ctrl *ctrl, u8 pid, bool input); -}; - -/** - * struct mvebu_mpp_ctrl_setting - describe a mpp ctrl setting - * @val: ctrl setting value - * @name: ctrl setting name, e.g. uart2, spi0 - unique per mpp_mode - * @subname: (optional) additional ctrl setting name, e.g. rts, cts - * @variant: (optional) variant identifier mask - * @flags: (private) flags to store gpi/gpo/gpio capabilities - * - * A ctrl_setting describes a specific internal mux function that a mpp pin - * can be switched to. The value (val) will be written in the corresponding - * register for common mpp pin configuration registers on MVEBU. SoC specific - * mpp_get/_set function may use val to distinguish between different settings. - * - * The name will be used to switch to this setting in DT description, e.g. - * marvell,function = "uart2". subname is only for debugging purposes. - * - * If name is one of "gpi", "gpo", "gpio" gpio capabilities are - * parsed during initialization and stored in flags. - * - * The variant can be used to combine different revisions of one SoC to a - * common pinctrl driver. It is matched (AND) with variant of soc_info to - * determine if a setting is available on the current SoC revision. - */ -struct mvebu_mpp_ctrl_setting { - u8 val; - const char *name; - const char *subname; - u8 variant; - u8 flags; -#define MVEBU_SETTING_GPO (1 << 0) -#define MVEBU_SETTING_GPI (1 << 1) -}; - -/** - * struct mvebu_mpp_mode - link ctrl and settings - * @pid: first pin id handled by this mode - * @settings: list of settings available for this mode - * - * A mode connects all available settings with the corresponding mpp_ctrl - * given by pid. - */ -struct mvebu_mpp_mode { - u8 pid; - struct mvebu_mpp_ctrl_setting *settings; -}; - -/** - * struct mvebu_pinctrl_soc_info - SoC specific info passed to pinctrl-mvebu - * @variant: variant mask of soc_info - * @controls: list of available mvebu_mpp_ctrls - * @ncontrols: number of available mvebu_mpp_ctrls - * @modes: list of available mvebu_mpp_modes - * @nmodes: number of available mvebu_mpp_modes - * @gpioranges: list of pinctrl_gpio_ranges - * @ngpioranges: number of available pinctrl_gpio_ranges - * - * This struct describes all pinctrl related information for a specific SoC. - * If variant is unequal 0 it will be matched (AND) with variant of each - * setting and allows to distinguish between different revisions of one SoC. - */ -struct mvebu_pinctrl_soc_info { - u8 variant; - struct mvebu_mpp_ctrl *controls; - int ncontrols; - struct mvebu_mpp_mode *modes; - int nmodes; - struct pinctrl_gpio_range *gpioranges; - int ngpioranges; -}; - -#define MPP_REG_CTRL(_idl, _idh) \ - { \ - .name = NULL, \ - .pid = _idl, \ - .npins = _idh - _idl + 1, \ - .pins = (unsigned[_idh - _idl + 1]) { }, \ - .mpp_get = NULL, \ - .mpp_set = NULL, \ - .mpp_gpio_req = NULL, \ - .mpp_gpio_dir = NULL, \ - } - -#define MPP_FUNC_CTRL(_idl, _idh, _name, _func) \ - { \ - .name = _name, \ - .pid = _idl, \ - .npins = _idh - _idl + 1, \ - .pins = (unsigned[_idh - _idl + 1]) { }, \ - .mpp_get = _func ## _get, \ - .mpp_set = _func ## _set, \ - .mpp_gpio_req = NULL, \ - .mpp_gpio_dir = NULL, \ - } - -#define MPP_FUNC_GPIO_CTRL(_idl, _idh, _name, _func) \ - { \ - .name = _name, \ - .pid = _idl, \ - .npins = _idh - _idl + 1, \ - .pins = (unsigned[_idh - _idl + 1]) { }, \ - .mpp_get = _func ## _get, \ - .mpp_set = _func ## _set, \ - .mpp_gpio_req = _func ## _gpio_req, \ - .mpp_gpio_dir = _func ## _gpio_dir, \ - } - -#define _MPP_VAR_FUNCTION(_val, _name, _subname, _mask) \ - { \ - .val = _val, \ - .name = _name, \ - .subname = _subname, \ - .variant = _mask, \ - .flags = 0, \ - } - -#if defined(CONFIG_DEBUG_FS) -#define MPP_VAR_FUNCTION(_val, _name, _subname, _mask) \ - _MPP_VAR_FUNCTION(_val, _name, _subname, _mask) -#else -#define MPP_VAR_FUNCTION(_val, _name, _subname, _mask) \ - _MPP_VAR_FUNCTION(_val, _name, NULL, _mask) -#endif - -#define MPP_FUNCTION(_val, _name, _subname) \ - MPP_VAR_FUNCTION(_val, _name, _subname, (u8)-1) - -#define MPP_MODE(_id, ...) \ - { \ - .pid = _id, \ - .settings = (struct mvebu_mpp_ctrl_setting[]){ \ - __VA_ARGS__, { } }, \ - } - -#define MPP_GPIO_RANGE(_id, _pinbase, _gpiobase, _npins) \ - { \ - .name = "mvebu-gpio", \ - .id = _id, \ - .pin_base = _pinbase, \ - .base = _gpiobase, \ - .npins = _npins, \ - } - -int mvebu_pinctrl_probe(struct platform_device *pdev); -int mvebu_pinctrl_remove(struct platform_device *pdev); - -#endif |