[PATCH 1/5] gpio: aspeed-sgpio: Change the macro to support deferred probe

Billy Tsai billy_tsai at aspeedtech.com
Sat Jan 17 03:17:08 PST 2026


Use module_platform_driver() to replace module_platform_driver_probe().
The former utilizes platform_driver_register(), which allows the driver to
defer probing when it doesn't acquire the necessary resources due to probe
order. In contrast, the latter uses __platform_driver_probe(), which
includes the comment "Note that this is incompatible with deferred
probing." Since our SGPIO driver requires access to the clock resource, the
former is more suitable.

Signed-off-by: Billy Tsai <billy_tsai at aspeedtech.com>
---
 drivers/gpio/gpio-aspeed-sgpio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c
index 7622f9e9f54a..318cd0e39741 100644
--- a/drivers/gpio/gpio-aspeed-sgpio.c
+++ b/drivers/gpio/gpio-aspeed-sgpio.c
@@ -516,7 +516,7 @@ static const struct of_device_id aspeed_sgpio_of_table[] = {
 
 MODULE_DEVICE_TABLE(of, aspeed_sgpio_of_table);
 
-static int __init aspeed_sgpio_probe(struct platform_device *pdev)
+static int aspeed_sgpio_probe(struct platform_device *pdev)
 {
 	u32 nr_gpios, sgpio_freq, sgpio_clk_div, gpio_cnt_regval, pin_mask;
 	const struct aspeed_sgpio_pdata *pdata;
@@ -611,11 +611,12 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev)
 }
 
 static struct platform_driver aspeed_sgpio_driver = {
+	.probe = aspeed_sgpio_probe,
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.of_match_table = aspeed_sgpio_of_table,
 	},
 };
 
-module_platform_driver_probe(aspeed_sgpio_driver, aspeed_sgpio_probe);
+module_platform_driver(aspeed_sgpio_driver);
 MODULE_DESCRIPTION("Aspeed Serial GPIO Driver");

-- 
2.34.1




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