[PATCH 08/16] board: sunxi: Convert extension support to UCLASS framework
Kory Maincent
kory.maincent at bootlin.com
Fri Oct 3 18:33:48 CEST 2025
Migrate sunxi board extension detection from legacy implementation to
the new UCLASS-based extension board framework.
Signed-off-by: Kory Maincent <kory.maincent at bootlin.com>
---
arch/arm/mach-sunxi/Kconfig | 2 +-
board/sunxi/chip.c | 17 ++++++++---------
2 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index b04ec671696..f5696199516 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1223,7 +1223,7 @@ config BLUETOOTH_DT_DEVICE_FIXUP
config CHIP_DIP_SCAN
bool "Enable DIPs detection for CHIP board"
- select SUPPORT_EXTENSION_SCAN
+ select SUPPORT_DM_EXTENSION_SCAN
select W1
select W1_GPIO
select W1_EEPROM
diff --git a/board/sunxi/chip.c b/board/sunxi/chip.c
index ea0d3a56f5f..183b8ded170 100644
--- a/board/sunxi/chip.c
+++ b/board/sunxi/chip.c
@@ -40,7 +40,7 @@ struct dip_w1_header {
u8 data[16]; /* user data, per-dip specific */
} __packed;
-int extension_board_scan(struct list_head *extension_list)
+static int sunxi_extension_board_scan(struct alist *extension_list)
{
struct udevice *bus, *dev;
int num_dip = 0;
@@ -54,6 +54,7 @@ int extension_board_scan(struct list_head *extension_list)
}
for_each_w1_device(bus, &dev) {
+ struct extension dip = {0}, *_dip;
struct dip_w1_header w1_header;
struct extension *dip;
u32 vid;
@@ -82,18 +83,16 @@ int extension_board_scan(struct list_head *extension_list)
w1_header.product_name, pid,
w1_header.vendor_name, vid);
- dip = calloc(1, sizeof(struct extension));
- if (!dip) {
- printf("Error in memory allocation\n");
- return num_dip;
- }
-
- snprintf(dip->overlay, sizeof(dip->overlay), "dip-%x-%x.dtbo",
+ snprintf(dip.overlay, sizeof(dip.overlay), "dip-%x-%x.dtbo",
vid, pid);
strlcpy(dip->name, w1_header.product_name, sizeof(dip->name));
strlcpy(dip->owner, w1_header.vendor_name, sizeof(dip->owner));
- list_add_tail(&dip->list, extension_list);
+ _dip = alist_add(extension_list, dip);
+ if (!_dip)
+ return -ENOMEM;
num_dip++;
}
return num_dip;
}
+
+U_BOOT_EXTENSION(dip, sunxi_extension_board_scan);
--
2.43.0
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