mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-08-30 10:00:03 -04:00
Code Issues Packages Projects Releases Wiki Activity

gpio: sa1100: register software node for GPIO controller

Browse Source 
Define and register a static software node (sa1100_gpiochip_node) for the
SA-1100 GPIO controller during sa1100_init_gpio(). Assign its firmware node
directly to the GPIO chip prior to calling gpiochip_add_data().

This allows StrongARM SA-1100 board setup files to reference the SoC GPIO
controller in property entries when converting legacy platform data to
software nodes, resolving pin bindings directly via the attached firmware
node without relying on name matching.

Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20260706-sa1100-swnode-v1-1-332759bbd930@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Dmitry Torokhov
2026-07-06 20:14:00 -07:00
committed by Arnd Bergmann
parent 9212f660d3
commit e4671f292e
2 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-sa1100/generic.h
View File

@@ -48,6 +48,9 @@ int sa11xx_clk_init(void);
struct gpiod_lookup_table;
void sa11x0_register_pcmcia(int socket, struct gpiod_lookup_table *);
struct software_node;
extern const struct software_node sa1100_gpiochip_node;
struct fixed_voltage_config;
struct regulator_consumer_supply;
int sa11x0_register_fixed_regulator(int n, struct fixed_voltage_config *cfg,

10
drivers/gpio/gpio-sa1100.c
View File

@@ -13,6 +13,11 @@
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/generic.h>
#include <linux/property.h>
const struct software_node sa1100_gpiochip_node = {
.name = "sa1100-gpio",
};
struct sa1100_gpio_chip {
struct gpio_chip chip;
@@ -317,6 +322,7 @@ static const int sa1100_gpio_irqs[] __initconst = {
void __init sa1100_init_gpio(void)
{
struct sa1100_gpio_chip *sgc = &sa1100_gpio_chip;
struct gpio_chip *gc = &sgc->chip;
int i;
/* clear all GPIO edge detects */
@@ -324,7 +330,9 @@ void __init sa1100_init_gpio(void)
writel_relaxed(0, sgc->membase + R_GRER);
writel_relaxed(-1, sgc->membase + R_GEDR);
gpiochip_add_data(&sa1100_gpio_chip.chip, NULL);
software_node_register(&sa1100_gpiochip_node);
gc->fwnode = software_node_fwnode(&sa1100_gpiochip_node);
gpiochip_add_data(gc, NULL);
sa1100_gpio_irqdomain = irq_domain_create_simple(NULL,
28, IRQ_GPIO0,