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mfd: vexpress-sysreg: set-up software nodes for gpio-mmio

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Replace struct bgpio_pdata - that we plan to remove - with software
nodes containing properties encoding the same values thatr can now be
parsed by gpio-mmio.

Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250701-gpio-mmio-pdata-v2-3-ebf34d273497@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2025-07-01 13:49:37 +02:00
parent c4a8348405
commit 11cd2e582b
1 changed files with 28 additions and 18 deletions
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46
drivers/mfd/vexpress-sysreg.c
View file

@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/slab.h>
#include <linux/stat.h>
@ -37,22 +38,34 @@
/* 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 const struct property_entry vexpress_sysreg_sys_led_props[] = {
PROPERTY_ENTRY_STRING("label", "sys_led"),
PROPERTY_ENTRY_U32("ngpios", 8),
{ }
};
static struct bgpio_pdata vexpress_sysreg_sys_mci_pdata = {
.label = "sys_mci",
.base = -1,
.ngpio = 2,
static const struct software_node vexpress_sysreg_sys_led_swnode = {
.properties = vexpress_sysreg_sys_led_props,
};
static struct bgpio_pdata vexpress_sysreg_sys_flash_pdata = {
.label = "sys_flash",
.base = -1,
.ngpio = 1,
static const struct property_entry vexpress_sysreg_sys_mci_props[] = {
PROPERTY_ENTRY_STRING("label", "sys_mci"),
PROPERTY_ENTRY_U32("ngpios", 2),
{ }
};
static const struct software_node vexpress_sysreg_sys_mci_swnode = {
.properties = vexpress_sysreg_sys_mci_props,
};
static const struct property_entry vexpress_sysreg_sys_flash_props[] = {
PROPERTY_ENTRY_STRING("label", "sys_flash"),
PROPERTY_ENTRY_U32("ngpios", 1),
{ }
};
static const struct software_node vexpress_sysreg_sys_flash_swnode = {
.properties = vexpress_sysreg_sys_flash_props,
};
static struct mfd_cell vexpress_sysreg_cells[] = {
@ -61,22 +74,19 @@ static struct mfd_cell vexpress_sysreg_cells[] = {
.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),
.swnode = &vexpress_sysreg_sys_led_swnode,
}, {
.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),
.swnode = &vexpress_sysreg_sys_mci_swnode,
}, {
.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),
.swnode = &vexpress_sysreg_sys_flash_swnode,
}, {
.name = "vexpress-syscfg",
.num_resources = 1,