Release 4.7 drivers/pinctrl/spear/pinctrl-spear310.c

Directory: drivers/pinctrl/spear
/*
 * Driver for the ST Microelectronics SPEAr310 pinmux
 *
 * Copyright (C) 2012 ST Microelectronics
 * Viresh Kumar <vireshk@kernel.org>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "pinctrl-spear3xx.h"


#define DRIVER_NAME "spear310-pinmux"

/* addresses */

#define PMX_CONFIG_REG			0x08

/* emi_cs_0_to_5_pins */

static const unsigned emi_cs_0_to_5_pins[] = { 45, 46, 47, 48, 49, 50 };

static struct spear_muxreg emi_cs_0_to_5_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
		.val = 0,
        },
};


static struct spear_modemux emi_cs_0_to_5_modemux[] = {
	{
		.muxregs = emi_cs_0_to_5_muxreg,
		.nmuxregs = ARRAY_SIZE(emi_cs_0_to_5_muxreg),
        },
};


static struct spear_pingroup emi_cs_0_to_5_pingroup = {
	.name = "emi_cs_0_to_5_grp",
	.pins = emi_cs_0_to_5_pins,
	.npins = ARRAY_SIZE(emi_cs_0_to_5_pins),
	.modemuxs = emi_cs_0_to_5_modemux,
	.nmodemuxs = ARRAY_SIZE(emi_cs_0_to_5_modemux),
};


static const char *const emi_cs_0_to_5_grps[] = { "emi_cs_0_to_5_grp" };

static struct spear_function emi_cs_0_to_5_function = {
	.name = "emi",
	.groups = emi_cs_0_to_5_grps,
	.ngroups = ARRAY_SIZE(emi_cs_0_to_5_grps),
};

/* uart1_pins */

static const unsigned uart1_pins[] = { 0, 1 };

static struct spear_muxreg uart1_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_FIRDA_MASK,
		.val = 0,
        },
};


static struct spear_modemux uart1_modemux[] = {
	{
		.muxregs = uart1_muxreg,
		.nmuxregs = ARRAY_SIZE(uart1_muxreg),
        },
};


static struct spear_pingroup uart1_pingroup = {
	.name = "uart1_grp",
	.pins = uart1_pins,
	.npins = ARRAY_SIZE(uart1_pins),
	.modemuxs = uart1_modemux,
	.nmodemuxs = ARRAY_SIZE(uart1_modemux),
};


static const char *const uart1_grps[] = { "uart1_grp" };

static struct spear_function uart1_function = {
	.name = "uart1",
	.groups = uart1_grps,
	.ngroups = ARRAY_SIZE(uart1_grps),
};

/* uart2_pins */

static const unsigned uart2_pins[] = { 43, 44 };

static struct spear_muxreg uart2_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_TIMER_0_1_MASK,
		.val = 0,
        },
};


static struct spear_modemux uart2_modemux[] = {
	{
		.muxregs = uart2_muxreg,
		.nmuxregs = ARRAY_SIZE(uart2_muxreg),
        },
};


static struct spear_pingroup uart2_pingroup = {
	.name = "uart2_grp",
	.pins = uart2_pins,
	.npins = ARRAY_SIZE(uart2_pins),
	.modemuxs = uart2_modemux,
	.nmodemuxs = ARRAY_SIZE(uart2_modemux),
};


static const char *const uart2_grps[] = { "uart2_grp" };

static struct spear_function uart2_function = {
	.name = "uart2",
	.groups = uart2_grps,
	.ngroups = ARRAY_SIZE(uart2_grps),
};

/* uart3_pins */

static const unsigned uart3_pins[] = { 37, 38 };

static struct spear_muxreg uart3_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_UART0_MODEM_MASK,
		.val = 0,
        },
};


static struct spear_modemux uart3_modemux[] = {
	{
		.muxregs = uart3_muxreg,
		.nmuxregs = ARRAY_SIZE(uart3_muxreg),
        },
};


static struct spear_pingroup uart3_pingroup = {
	.name = "uart3_grp",
	.pins = uart3_pins,
	.npins = ARRAY_SIZE(uart3_pins),
	.modemuxs = uart3_modemux,
	.nmodemuxs = ARRAY_SIZE(uart3_modemux),
};


static const char *const uart3_grps[] = { "uart3_grp" };

static struct spear_function uart3_function = {
	.name = "uart3",
	.groups = uart3_grps,
	.ngroups = ARRAY_SIZE(uart3_grps),
};

/* uart4_pins */

static const unsigned uart4_pins[] = { 39, 40 };

static struct spear_muxreg uart4_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_UART0_MODEM_MASK,
		.val = 0,
        },
};


static struct spear_modemux uart4_modemux[] = {
	{
		.muxregs = uart4_muxreg,
		.nmuxregs = ARRAY_SIZE(uart4_muxreg),
        },
};


static struct spear_pingroup uart4_pingroup = {
	.name = "uart4_grp",
	.pins = uart4_pins,
	.npins = ARRAY_SIZE(uart4_pins),
	.modemuxs = uart4_modemux,
	.nmodemuxs = ARRAY_SIZE(uart4_modemux),
};


static const char *const uart4_grps[] = { "uart4_grp" };

static struct spear_function uart4_function = {
	.name = "uart4",
	.groups = uart4_grps,
	.ngroups = ARRAY_SIZE(uart4_grps),
};

/* uart5_pins */

static const unsigned uart5_pins[] = { 41, 42 };

static struct spear_muxreg uart5_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_UART0_MODEM_MASK,
		.val = 0,
        },
};


static struct spear_modemux uart5_modemux[] = {
	{
		.muxregs = uart5_muxreg,
		.nmuxregs = ARRAY_SIZE(uart5_muxreg),
        },
};


static struct spear_pingroup uart5_pingroup = {
	.name = "uart5_grp",
	.pins = uart5_pins,
	.npins = ARRAY_SIZE(uart5_pins),
	.modemuxs = uart5_modemux,
	.nmodemuxs = ARRAY_SIZE(uart5_modemux),
};


static const char *const uart5_grps[] = { "uart5_grp" };

static struct spear_function uart5_function = {
	.name = "uart5",
	.groups = uart5_grps,
	.ngroups = ARRAY_SIZE(uart5_grps),
};

/* fsmc_pins */

static const unsigned fsmc_pins[] = { 34, 35, 36 };

static struct spear_muxreg fsmc_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_SSP_CS_MASK,
		.val = 0,
        },
};


static struct spear_modemux fsmc_modemux[] = {
	{
		.muxregs = fsmc_muxreg,
		.nmuxregs = ARRAY_SIZE(fsmc_muxreg),
        },
};


static struct spear_pingroup fsmc_pingroup = {
	.name = "fsmc_grp",
	.pins = fsmc_pins,
	.npins = ARRAY_SIZE(fsmc_pins),
	.modemuxs = fsmc_modemux,
	.nmodemuxs = ARRAY_SIZE(fsmc_modemux),
};


static const char *const fsmc_grps[] = { "fsmc_grp" };

static struct spear_function fsmc_function = {
	.name = "fsmc",
	.groups = fsmc_grps,
	.ngroups = ARRAY_SIZE(fsmc_grps),
};

/* rs485_0_pins */

static const unsigned rs485_0_pins[] = { 19, 20, 21, 22, 23 };

static struct spear_muxreg rs485_0_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_MII_MASK,
		.val = 0,
        },
};


static struct spear_modemux rs485_0_modemux[] = {
	{
		.muxregs = rs485_0_muxreg,
		.nmuxregs = ARRAY_SIZE(rs485_0_muxreg),
        },
};


static struct spear_pingroup rs485_0_pingroup = {
	.name = "rs485_0_grp",
	.pins = rs485_0_pins,
	.npins = ARRAY_SIZE(rs485_0_pins),
	.modemuxs = rs485_0_modemux,
	.nmodemuxs = ARRAY_SIZE(rs485_0_modemux),
};


static const char *const rs485_0_grps[] = { "rs485_0" };

static struct spear_function rs485_0_function = {
	.name = "rs485_0",
	.groups = rs485_0_grps,
	.ngroups = ARRAY_SIZE(rs485_0_grps),
};

/* rs485_1_pins */

static const unsigned rs485_1_pins[] = { 14, 15, 16, 17, 18 };

static struct spear_muxreg rs485_1_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_MII_MASK,
		.val = 0,
        },
};


static struct spear_modemux rs485_1_modemux[] = {
	{
		.muxregs = rs485_1_muxreg,
		.nmuxregs = ARRAY_SIZE(rs485_1_muxreg),
        },
};


static struct spear_pingroup rs485_1_pingroup = {
	.name = "rs485_1_grp",
	.pins = rs485_1_pins,
	.npins = ARRAY_SIZE(rs485_1_pins),
	.modemuxs = rs485_1_modemux,
	.nmodemuxs = ARRAY_SIZE(rs485_1_modemux),
};


static const char *const rs485_1_grps[] = { "rs485_1" };

static struct spear_function rs485_1_function = {
	.name = "rs485_1",
	.groups = rs485_1_grps,
	.ngroups = ARRAY_SIZE(rs485_1_grps),
};

/* tdm_pins */

static const unsigned tdm_pins[] = { 10, 11, 12, 13 };

static struct spear_muxreg tdm_muxreg[] = {
	{
		.reg = PMX_CONFIG_REG,
		.mask = PMX_MII_MASK,
		.val = 0,
        },
};


static struct spear_modemux tdm_modemux[] = {
	{
		.muxregs = tdm_muxreg,
		.nmuxregs = ARRAY_SIZE(tdm_muxreg),
        },
};


static struct spear_pingroup tdm_pingroup = {
	.name = "tdm_grp",
	.pins = tdm_pins,
	.npins = ARRAY_SIZE(tdm_pins),
	.modemuxs = tdm_modemux,
	.nmodemuxs = ARRAY_SIZE(tdm_modemux),
};


static const char *const tdm_grps[] = { "tdm_grp" };

static struct spear_function tdm_function = {
	.name = "tdm",
	.groups = tdm_grps,
	.ngroups = ARRAY_SIZE(tdm_grps),
};

/* pingroups */

static struct spear_pingroup *spear310_pingroups[] = {
	SPEAR3XX_COMMON_PINGROUPS,
	&emi_cs_0_to_5_pingroup,
	&uart1_pingroup,
	&uart2_pingroup,
	&uart3_pingroup,
	&uart4_pingroup,
	&uart5_pingroup,
	&fsmc_pingroup,
	&rs485_0_pingroup,
	&rs485_1_pingroup,
	&tdm_pingroup,
};

/* functions */

static struct spear_function *spear310_functions[] = {
	SPEAR3XX_COMMON_FUNCTIONS,
	&emi_cs_0_to_5_function,
	&uart1_function,
	&uart2_function,
	&uart3_function,
	&uart4_function,
	&uart5_function,
	&fsmc_function,
	&rs485_0_function,
	&rs485_1_function,
	&tdm_function,
};


static const struct of_device_id spear310_pinctrl_of_match[] = {
	{
		.compatible = "st,spear310-pinmux",
        },
	{},
};



static int spear310_pinctrl_probe(struct platform_device *pdev)
{
	int ret;

	spear3xx_machdata.groups = spear310_pingroups;
	spear3xx_machdata.ngroups = ARRAY_SIZE(spear310_pingroups);
	spear3xx_machdata.functions = spear310_functions;
	spear3xx_machdata.nfunctions = ARRAY_SIZE(spear310_functions);

	pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG);
	pmx_init_gpio_pingroup_addr(spear3xx_machdata.gpio_pingroups,
			spear3xx_machdata.ngpio_pingroups, PMX_CONFIG_REG);

	spear3xx_machdata.modes_supported = false;

	ret = spear_pinctrl_probe(pdev, &spear3xx_machdata);
	if (ret)
		return ret;

	return 0;
}

Contributors
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viresh kumar viresh kumar 91 100.00% 2 100.00%
Total 91 100.00% 2 100.00%


static struct platform_driver spear310_pinctrl_driver = {
	.driver = {
		.name = DRIVER_NAME,
		.of_match_table = spear310_pinctrl_of_match,
        },
	.probe = spear310_pinctrl_probe,
};



static int __init spear310_pinctrl_init(void)
{
	return platform_driver_register(&spear310_pinctrl_driver);
}
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viresh kumar viresh kumar 16 100.00% 1 100.00%
Total 16 100.00% 1 100.00%


arch_initcall(spear310_pinctrl_init);



static void __exit spear310_pinctrl_exit(void)
{
	platform_driver_unregister(&spear310_pinctrl_driver);
}
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Person Tokens Prop Commits CommitProp
viresh kumar viresh kumar 15 100.00% 1 100.00%
Total 15 100.00% 1 100.00%


module_exit(spear310_pinctrl_exit);

MODULE_AUTHOR("Viresh Kumar <vireshk@kernel.org>");
MODULE_DESCRIPTION("ST Microelectronics SPEAr310 pinctrl driver");
MODULE_LICENSE("GPL v2");
MODULE_DEVICE_TABLE(of, spear310_pinctrl_of_match);
Overall Contributors
Person Tokens Prop Commits CommitProp
viresh kumar viresh kumar 1697 99.88% 3 60.00%
axel lin axel lin 1 0.06% 1 20.00%
kiran padwal kiran padwal 1 0.06% 1 20.00%
bill pemberton bill pemberton 0.00% 0 0.00%
Total 1699 100.00% 5 100.00%
  Directory: drivers/pinctrl/spear

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
viresh kumar	viresh kumar	91	100.00%	2	100.00%
	Total	91	100.00%	2	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/pinctrl/spear/pinctrl-spear310.c

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