diff mbox series

[RFT,3/6] mfd: vexpress-sysreg: set-up software nodes for gpio-mmio

Message ID 20250624-gpio-mmio-pdata-v1-3-a58c72eb556a@linaro.org
State New
Headers show
Series [RFT,1/6] gpio: mmio: drop the big-endian platform device variant | expand

Commit Message

Bartosz Golaszewski June 24, 2025, 1:19 p.m. UTC 
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/mfd/vexpress-sysreg.c | 46 ++++++++++++++++++++++++++-----------------
 1 file changed, 28 insertions(+), 18 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index ef03d6cec9ff6927668d051ca459eb1d8ff7269e..fc2daffc4352cca763cefbf6e17bdd5242290198 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -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,