Commit 86fbd094 authored by Hanna Hawa's avatar Hanna Hawa Committed by Linus Walleij
Browse files

pinctrl: mvebu: add driver for Armada AP806 pinctrl 



This commit adds a pinctrl driver for the pin-muxing controller found in
the AP806 part of the Marvell Armada 7K and 8K SoCs. Its register
interface is compatible with the one used by previous mvebu pin
controllers, so the common logic in drivers/pinctrl/mvebu/pinctrl-mvebu.c
is used.

Signed-off-by: default avatarHanna Hawa <hannah@marvell.com>
Reviewed-by: default avatarShadi Ammouri <shadi@marvell.com>
[updated for mvebu pinctrl changes
 - converted to simple_mmio
 - removed unimplemented .remove function
 - removed DTS description
  - converted  to use syscon/regmap
 --rmk]
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 0b369065

drivers/pinctrl/mvebu/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -28,6 +28,10 @@ config PINCTRL_ARMADA_39X 
	bool

	select PINCTRL_MVEBU



config PINCTRL_ARMADA_AP806

	bool

	select PINCTRL_MVEBU



config PINCTRL_ARMADA_XP

	bool

	select PINCTRL_MVEBU

drivers/pinctrl/mvebu/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ obj-$(CONFIG_PINCTRL_ARMADA_370) += pinctrl-armada-370.o 
obj-$(CONFIG_PINCTRL_ARMADA_375) += pinctrl-armada-375.o

obj-$(CONFIG_PINCTRL_ARMADA_38X) += pinctrl-armada-38x.o

obj-$(CONFIG_PINCTRL_ARMADA_39X) += pinctrl-armada-39x.o

obj-$(CONFIG_PINCTRL_ARMADA_AP806) += pinctrl-armada-ap806.o

obj-$(CONFIG_PINCTRL_ARMADA_XP)  += pinctrl-armada-xp.o

obj-$(CONFIG_PINCTRL_ARMADA_37XX)  += pinctrl-armada-37xx.o

obj-$(CONFIG_PINCTRL_ORION)  += pinctrl-orion.o

drivers/pinctrl/mvebu/pinctrl-armada-ap806.c

0 → 100644
+140 −0
Original line number Diff line number Diff line 
/*

 * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core

 *

 * Copyright (C) 2017 Marvell

 *

 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

 * Hanna Hawa <hannah@marvell.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.

 */



#include <linux/err.h>

#include <linux/init.h>

#include <linux/io.h>

#include <linux/platform_device.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/pinctrl/pinctrl.h>



#include "pinctrl-mvebu.h"



static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = {

	MPP_MODE(0,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "clk"),

		 MPP_FUNCTION(3, "spi0",    "clk")),

	MPP_MODE(1,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "cmd"),

		 MPP_FUNCTION(3, "spi0",    "miso")),

	MPP_MODE(2,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d0"),

		 MPP_FUNCTION(3, "spi0",    "mosi")),

	MPP_MODE(3,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d1"),

		 MPP_FUNCTION(3, "spi0",    "cs0n")),

	MPP_MODE(4,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d2"),

		 MPP_FUNCTION(3, "i2c0",    "sda")),

	MPP_MODE(5,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d3"),

		 MPP_FUNCTION(3, "i2c0",    "sdk")),

	MPP_MODE(6,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "ds")),

	MPP_MODE(7,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d4"),

		 MPP_FUNCTION(3, "uart1",   "rxd")),

	MPP_MODE(8,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d5"),

		 MPP_FUNCTION(3, "uart1",   "txd")),

	MPP_MODE(9,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d6"),

		 MPP_FUNCTION(3, "spi0",    "cs1n")),

	MPP_MODE(10,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "d7")),

	MPP_MODE(11,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(3, "uart0",   "txd")),

	MPP_MODE(12,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(1, "sdio",    "pw_off"),

		 MPP_FUNCTION(2, "sdio",    "hw_rst")),

	MPP_MODE(13,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(14,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(15,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(16,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(17,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(18,

		 MPP_FUNCTION(0, "gpio",    NULL)),

	MPP_MODE(19,

		 MPP_FUNCTION(0, "gpio",    NULL),

		 MPP_FUNCTION(3, "uart0",   "rxd"),

		 MPP_FUNCTION(4, "sdio",    "pw_off")),

};



static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info;



static const struct of_device_id armada_ap806_pinctrl_of_match[] = {

	{

		.compatible = "marvell,ap806-pinctrl",

	},

	{ },

};



static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = {

	MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl),

};



static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = {

	MPP_GPIO_RANGE(0,   0,  0, 20),

};



static int armada_ap806_pinctrl_probe(struct platform_device *pdev)

{

	struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info;

	const struct of_device_id *match =

		of_match_device(armada_ap806_pinctrl_of_match, &pdev->dev);



	if (!match || !pdev->dev.parent)

		return -ENODEV;



	soc->variant = 0; /* no variants for Armada AP806 */

	soc->controls = armada_ap806_mpp_controls;

	soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls);

	soc->gpioranges = armada_ap806_mpp_gpio_ranges;

	soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges);

	soc->modes = armada_ap806_mpp_modes;

	soc->nmodes = armada_ap806_mpp_controls[0].npins;



	pdev->dev.platform_data = soc;



	return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0);

}



static struct platform_driver armada_ap806_pinctrl_driver = {

	.driver = {

		.name = "armada-ap806-pinctrl",

		.of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match),

	},

	.probe = armada_ap806_pinctrl_probe,

};



builtin_platform_driver(armada_ap806_pinctrl_driver);

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