* [PATCH v2] pinctrl: sunxi: dt: do not accumulate npins across probe attempts
@ 2026-10-07 6:01 Pablo Mazzini
0 siblings, 0 replies; only message in thread
From: Pablo Mazzini @ 2026-10-07 6:01 UTC (permalink / raw)
To: Linus Walleij
Cc: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Andre Przywara,
linux-gpio, linux-arm-kernel, linux-sunxi, linux-kernel,
Pablo Mazzini
init_pins_table() adds to npins in the driver's static descriptor, so
after a probe deferral the count doubles and the next probe fails with
"pin 0 already registered". Reset it first.
Signed-off-by: Pablo Mazzini <pmazzini@gmail.com>
---
v2: reset npins instead of counting into a local (Andre)
drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c b/drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c
index 50a16f3bd131..8bcd566593ae 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi-dt.c
@@ -84,6 +84,7 @@ static struct sunxi_desc_pin *init_pins_table(struct device *dev,
* Find the total number of pins.
* Also work out how much memory we need to store all the pin names.
*/
+ desc->npins = 0;
for (i = 0; i < SUNXI_PINCTRL_MAX_BANKS; i++) {
desc->npins += pins_per_bank[i];
if (pins_per_bank[i] < 10) {
--
2.52.0
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