Merge tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull late ARM soc platform updates from Olof Johansson:
 "This branch contains updates to OMAP and Marvell platforms (kirkwood,
  dove, mvebu) that came in after we had done the big multiplatform
  merges, so they were kept separate from the rest, and not separated
  into the traditional topics of cleanup/driver/platform features.

  For OMAP, the updates are:
   - Runtime PM conversions for the GPMC and RNG IP blocks
   - Preparation patches for the OMAP common clock framework conversion
   - clkdev alias additions required by other drivers
   - Performance Monitoring Unit (PMU) support for OMAP2, 3, and
     non-4430 OMAP4
   - OMAP hwmod code and data improvements
   - Preparation patches for the IOMMU runtime PM conversion
   - Preparation patches for OMAP4 full-chip retention support

  For Kirkwood/Dove/mvebu:
   - New driver for "address decoder controller" for mvebu, which is a
     piece of hardware that configures addressable devices and
     peripherals.  First user is the boot rom aperture on armada XP
     since it is needed for SMP support.
   - New device tree bindings for peripherals such as gpio-fan, iconnect
     nand, mv_cesa and the above address decoder controller.
   - Some defconfig updates, mostly to enable new DT boards and a few
     drivers.
   - New drivers using the pincontrol subsystem for dove, kirkwood and
     mvebu
   - New clean gpio driver for mvebu"

* tag 'soc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (98 commits)
  ARM: mvebu: fix build breaks from multi-platform conversion
  ARM: OMAP4460/4470: PMU: Enable PMU for OMAP4460/70
  ARM: OMAP2+: PMU: Add runtime PM support
  ARM: OMAP4430: PMU: prepare to create PMU device via HWMOD
  ARM: OMAP2+: PMU: Convert OMAP2/3 devices to use HWMOD
  ARM: OMAP3: hwmod data: Add debugss HWMOD data
  ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU clockdomain idle problems
  ARM: OMAP: Add a timer attribute for timers that can interrupt the DSP
  hwrng: OMAP: remove SoC restrictions from driver registration
  ARM: OMAP: split OMAP1, OMAP2+ RNG device registration
  hwrng: OMAP: convert to use runtime PM
  hwrng: OMAP: store per-device data in per-device variables, not file statics
  ARM: OMAP2xxx: hwmod/CM: add RNG integration data
  ARM: OMAP2+: gpmc: minimal driver support
  ARM: OMAP2+: gpmc: Adapt to HWMOD
  ARM: OMAP2/3: hwmod data: add gpmc
  ARM: OMAP4: hwmod data: add mmu hwmod for ipu and dsp
  ARM: OMAP3: hwmod data: add mmu data for iva and isp
  ARM: OMAP: iommu: fix including iommu.h without IOMMU_API selected
  ARM: OMAP4: hwmod data: add missing HWMOD_NO_IDLEST flags to some PRCM IP blocks
  ...

1 files changed, 192 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-mvebu.h b/drivers/pinctrl/pinctrl-mvebu.h
new file mode 100644
index 00000000000..90bd3beee86
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-mvebu.h
@@ -0,0 +1,192 @@
+/*
+ * 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