// SPDX-License-Identifier: GPL-2.0
/*
* Pin Control and GPIO driver for SuperH Pin Function Controller.
*
* Authors: Magnus Damm, Paul Mundt, Laurent Pinchart
*
* Copyright (C) 2008 Magnus Damm
* Copyright (C) 2009 - 2012 Paul Mundt
*/
#define DRV_NAME "sh-pfc"
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_device.h>
#include <linux/psci.h>
#include <linux/slab.h>
#include <linux/sys_soc.h>
#include "core.h"
static int sh_pfc_map_resources(struct sh_pfc *pfc,
struct platform_device *pdev)
{
struct sh_pfc_window *windows;
unsigned int *irqs = NULL;
unsigned int num_windows;
struct resource *res;
unsigned int i;
int num_irqs;
/* Count the MEM and IRQ resources. */
for (num_windows = 0;; num_windows++) {
res = platform_get_resource(pdev, IORESOURCE_MEM, num_windows);
if (!res)
break;
}
if (num_windows == 0)
return -EINVAL;
num_irqs = platform_irq_count(pdev);
if (num_irqs < 0)
return num_irqs;
/* Allocate memory windows and IRQs arrays. */
windows = devm_kcalloc(pfc->dev, num_windows, sizeof(*windows),
GFP_KERNEL);
if (windows == NULL)
return -ENOMEM;
pfc->num_windows = num_windows;
pfc->windows = windows;
if (num_irqs) {
irqs = devm_kcalloc(pfc->dev, num_irqs, sizeof(*irqs),
GFP_KERNEL);
if (irqs == NULL)
return -ENOMEM;
pfc->num_irqs = num_irqs;
pfc->irqs = irqs;
}
/* Fill them. */
for (i = 0; i < num_windows; i++) {
res = platform_get_resource(pdev, IORESOURCE_MEM, i);
windows->phys = res->start;
windows->size = resource_size(res);
windows->virt = devm_ioremap_resource(pfc->dev, res);
if (IS_ERR(windows->virt))
return -ENOMEM;
windows++;
}
for (i = 0; i < num_irqs; i++)
*irqs++ = platform_get_irq(pdev, i);
return 0;
}
static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc,<