f613facc82
Since DEFINE_RES_*() macros were converted to provide a compound literal
the user doesn't need to repeat it. Moreover, it may not be compiled.
Fixes: 52c4d11f1d ("resource: Convert DEFINE_RES_NAMED() to be compound literal")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221113191027.2327-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
*
|
|
* Copyright (C) 2012 ARM Limited
|
|
*/
|
|
|
|
#include <linux/gpio/driver.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/platform_data/syscon.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/stat.h>
|
|
|
|
#define SYS_ID 0x000
|
|
#define SYS_SW 0x004
|
|
#define SYS_LED 0x008
|
|
#define SYS_100HZ 0x024
|
|
#define SYS_FLAGSSET 0x030
|
|
#define SYS_FLAGSCLR 0x034
|
|
#define SYS_NVFLAGS 0x038
|
|
#define SYS_NVFLAGSSET 0x038
|
|
#define SYS_NVFLAGSCLR 0x03c
|
|
#define SYS_MCI 0x048
|
|
#define SYS_FLASH 0x04c
|
|
#define SYS_CFGSW 0x058
|
|
#define SYS_24MHZ 0x05c
|
|
#define SYS_MISC 0x060
|
|
#define SYS_DMA 0x064
|
|
#define SYS_PROCID0 0x084
|
|
#define SYS_PROCID1 0x088
|
|
#define SYS_CFGDATA 0x0a0
|
|
#define SYS_CFGCTRL 0x0a4
|
|
#define SYS_CFGSTAT 0x0a8
|
|
|
|
/* The sysreg block is just a random collection of various functions... */
|
|
|
|
static struct bgpio_pdata vexpress_sysreg_sys_led_pdata = {
|
|
.label = "sys_led",
|
|
.base = -1,
|
|
.ngpio = 8,
|
|
};
|
|
|
|
static struct bgpio_pdata vexpress_sysreg_sys_mci_pdata = {
|
|
.label = "sys_mci",
|
|
.base = -1,
|
|
.ngpio = 2,
|
|
};
|
|
|
|
static struct bgpio_pdata vexpress_sysreg_sys_flash_pdata = {
|
|
.label = "sys_flash",
|
|
.base = -1,
|
|
.ngpio = 1,
|
|
};
|
|
|
|
static struct mfd_cell vexpress_sysreg_cells[] = {
|
|
{
|
|
.name = "basic-mmio-gpio",
|
|
.of_compatible = "arm,vexpress-sysreg,sys_led",
|
|
.num_resources = 1,
|
|
.resources = &DEFINE_RES_MEM_NAMED(SYS_LED, 0x4, "dat"),
|
|
.platform_data = &vexpress_sysreg_sys_led_pdata,
|
|
.pdata_size = sizeof(vexpress_sysreg_sys_led_pdata),
|
|
}, {
|
|
.name = "basic-mmio-gpio",
|
|
.of_compatible = "arm,vexpress-sysreg,sys_mci",
|
|
.num_resources = 1,
|
|
.resources = &DEFINE_RES_MEM_NAMED(SYS_MCI, 0x4, "dat"),
|
|
.platform_data = &vexpress_sysreg_sys_mci_pdata,
|
|
.pdata_size = sizeof(vexpress_sysreg_sys_mci_pdata),
|
|
}, {
|
|
.name = "basic-mmio-gpio",
|
|
.of_compatible = "arm,vexpress-sysreg,sys_flash",
|
|
.num_resources = 1,
|
|
.resources = &DEFINE_RES_MEM_NAMED(SYS_FLASH, 0x4, "dat"),
|
|
.platform_data = &vexpress_sysreg_sys_flash_pdata,
|
|
.pdata_size = sizeof(vexpress_sysreg_sys_flash_pdata),
|
|
}, {
|
|
.name = "vexpress-syscfg",
|
|
.num_resources = 1,
|
|
.resources = &DEFINE_RES_MEM(SYS_MISC, 0x4c),
|
|
}
|
|
};
|
|
|
|
static int vexpress_sysreg_probe(struct platform_device *pdev)
|
|
{
|
|
struct resource *mem;
|
|
void __iomem *base;
|
|
struct gpio_chip *mmc_gpio_chip;
|
|
|
|
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!mem)
|
|
return -EINVAL;
|
|
|
|
base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
|
|
if (!base)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Duplicated SYS_MCI pseudo-GPIO controller for compatibility with
|
|
* older trees using sysreg node for MMC control lines.
|
|
*/
|
|
mmc_gpio_chip = devm_kzalloc(&pdev->dev, sizeof(*mmc_gpio_chip),
|
|
GFP_KERNEL);
|
|
if (!mmc_gpio_chip)
|
|
return -ENOMEM;
|
|
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
|
|
NULL, NULL, NULL, NULL, 0);
|
|
mmc_gpio_chip->ngpio = 2;
|
|
devm_gpiochip_add_data(&pdev->dev, mmc_gpio_chip, NULL);
|
|
|
|
return devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
|
|
vexpress_sysreg_cells,
|
|
ARRAY_SIZE(vexpress_sysreg_cells), mem, 0, NULL);
|
|
}
|
|
|
|
static const struct of_device_id vexpress_sysreg_match[] = {
|
|
{ .compatible = "arm,vexpress-sysreg", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, vexpress_sysreg_match);
|
|
|
|
static struct platform_driver vexpress_sysreg_driver = {
|
|
.driver = {
|
|
.name = "vexpress-sysreg",
|
|
.of_match_table = vexpress_sysreg_match,
|
|
},
|
|
.probe = vexpress_sysreg_probe,
|
|
};
|
|
|
|
module_platform_driver(vexpress_sysreg_driver);
|
|
MODULE_LICENSE("GPL v2");
|