We now can access the address of the software node associated with the
GPIO controller cell of the cs5535 MFD device. Make it the target of the
GPIO software node references in geode-common.c. Make sure the cs5535
driver is built-in for all boards selecting GEODE_COMMON. Note that the
software node in question is exported in the "CS5535" namespace so we
must import it in this module.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---
GPIO software node lookup should rely exclusively on matching the
addresses of the referenced firmware nodes. I tried to enforce it with
commit e5d527be7e69 ("gpio: swnode: don't use the swnode's name as the
key for GPIO lookup") but it broke existing users who abuse the software
node mechanism by creating "dummy" software nodes named after the device
they want to get GPIOs from but never attaching them to the actual GPIO
devices. They rely on the current behavior of GPIOLIB where it will match
the label of the GPIO controller against the name of the software node
and does not require a true link.

In order to un-revert e5d527be7e69, we need to convert all existing
users to real firmware node lookup for software nodes.

This series exposes the software node associated with the GPIO
controller cell of the cs5535 MFD device and uses it in the geode board
setup for LEDs.

Merging strategy: there's not much development going on for the geode
board file so this could go through the MFD tree with an ack from the
x86 maintainers.
---
Changes in v2:
- Drop the MFD patch that's already in linux-next
- Rebase on top of current linux-next
- Rephrase the commit message, mention the namespace import
- Link to v1: https://patch.msgid.link/20260429-cs5535-swnode-v1-0-2bc5e17ddcf9@oss.qualcomm.com
---
 arch/x86/Kconfig                       | 10 +++++-----
 arch/x86/platform/geode/geode-common.c | 12 +++++-------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f24810015234e00a441645f61648ce9aa174a293..63c31b91341bd50f57626d44ad34648a25233393 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -3028,7 +3028,7 @@ config GEODE_COMMON
 
 config ALIX
 	bool "PCEngines ALIX System Support (LED setup)"
-	select GPIOLIB
+	depends on GPIO_CS5535=y
 	select GEODE_COMMON
 	help
 	  This option enables system support for the PCEngines ALIX.
@@ -3036,21 +3036,21 @@ config ALIX
 	  ALIX2/3/6 boards.  However, other system specific setup should
 	  get added here.
 
-	  Note: You must still enable the drivers for GPIO and LED support
-	  (GPIO_CS5535 & LEDS_GPIO) to actually use the LEDs
+	  Note: You must still enable the drivers for LED support (LEDS_GPIO)
+	  to actually use the LEDs
 
 	  Note: You have to set alix.force=1 for boards with Award BIOS.
 
 config NET5501
 	bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
-	select GPIOLIB
+	depends on GPIO_CS5535=y
 	select GEODE_COMMON
 	help
 	  This option enables system support for the Soekris Engineering net5501.
 
 config GEOS
 	bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"
-	select GPIOLIB
+	depends on GPIO_CS5535=y
 	select GEODE_COMMON
 	depends on DMI
 	help
diff --git a/arch/x86/platform/geode/geode-common.c b/arch/x86/platform/geode/geode-common.c
index 1843ae385e2dc038fde6fb02f6de0b818e22d8dd..679b4b07b790db3ce1c06bd6639bba7516ca3f71 100644
--- a/arch/x86/platform/geode/geode-common.c
+++ b/arch/x86/platform/geode/geode-common.c
@@ -9,15 +9,12 @@
 #include <linux/gpio/property.h>
 #include <linux/input.h>
 #include <linux/leds.h>
+#include <linux/mfd/cs5535.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
 #include "geode-common.h"
 
-static const struct software_node geode_gpiochip_node = {
-	.name = "cs5535-gpio",
-};
-
 static const struct property_entry geode_gpio_keys_props[] = {
 	PROPERTY_ENTRY_U32("poll-interval", 20),
 	{ }
@@ -44,7 +41,6 @@ static const struct software_node geode_restart_key_node = {
 };
 
 static const struct software_node *geode_gpio_keys_swnodes[] __initconst = {
-	&geode_gpiochip_node,
 	&geode_gpio_keys_node,
 	&geode_restart_key_node,
 	NULL
@@ -66,7 +62,7 @@ int __init geode_create_restart_key(unsigned int pin)
 	struct platform_device *pd;
 	int err;
 
-	geode_restart_gpio_ref = SOFTWARE_NODE_REFERENCE(&geode_gpiochip_node,
+	geode_restart_gpio_ref = SOFTWARE_NODE_REFERENCE(&cs5535_gpio_swnode,
 							 pin, GPIO_ACTIVE_LOW);
 
 	err = software_node_register_node_group(geode_gpio_keys_swnodes);
@@ -143,7 +139,7 @@ int __init geode_create_leds(const char *label, const struct geode_led *leds,
 			goto err_free_names;
 		}
 
-		gpio_refs[i] = SOFTWARE_NODE_REFERENCE(&geode_gpiochip_node,
+		gpio_refs[i] = SOFTWARE_NODE_REFERENCE(&cs5535_gpio_swnode,
 						       leds[i].pin,
 						       GPIO_ACTIVE_LOW);
 		props[i * 3 + 0] =
@@ -188,3 +184,5 @@ int __init geode_create_leds(const char *label, const struct geode_led *leds,
 	kfree(swnodes);
 	return err;
 }
+
+MODULE_IMPORT_NS("CS5535");

---
base-commit: 550604d6c9b9efc8d068aff94dc301694a7afdee
change-id: 20260429-cs5535-swnode-0f731d2bbe10

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>