linux-imx

/*

 * Copyright (C) 2016 IBM Corp.

 *

 * 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/mfd/syscon.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/string.h>

#include "../core.h"

#include "pinctrl-aspeed.h"

​

static const char *const aspeed_pinmux_ips[] = {

    [ASPEED_IP_SCU] = "SCU",

    [ASPEED_IP_GFX] = "GFX",

    [ASPEED_IP_LPC] = "LPC",

};

​

int aspeed_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    return pdata->ngroups;

}

​

const char *aspeed_pinctrl_get_group_name(struct pinctrl_dev *pctldev,

        unsigned int group)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    return pdata->groups[group].name;

}

​

int aspeed_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,

                  unsigned int group, const unsigned int **pins,

                  unsigned int *npins)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    *pins = &pdata->groups[group].pins[0];

    *npins = pdata->groups[group].npins;

​

    return 0;

}

​

void aspeed_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,

                 struct seq_file *s, unsigned int offset)

{

    seq_printf(s, " %s", dev_name(pctldev->dev));

}

​

int aspeed_pinmux_get_fn_count(struct pinctrl_dev *pctldev)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    return pdata->nfunctions;

}

​

const char *aspeed_pinmux_get_fn_name(struct pinctrl_dev *pctldev,

                      unsigned int function)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    return pdata->functions[function].name;

}

​

int aspeed_pinmux_get_fn_groups(struct pinctrl_dev *pctldev,

                unsigned int function,

                const char * const **groups,

                unsigned int * const num_groups)

{

    struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev);

​

    *groups = pdata->functions[function].groups;

    *num_groups = pdata->functions[function].ngroups;

​

    return 0;

}

​

static inline void aspeed_sig_desc_print_val(

        const struct aspeed_sig_desc *desc, bool enable, u32 rv)

{

    pr_debug("Want %s%X[0x%08X]=0x%X, got 0x%X from 0x%08X\n",

            aspeed_pinmux_ips[desc->ip], desc->reg,

            desc->mask, enable ? desc->enable : desc->disable,

            (rv & desc->mask) >> __ffs(desc->mask), rv);

}

​