[PATCH] pinctrl: rockchip: improve error message for incorrect rockchip,pins property

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From: Quentin Schulz <quentin.schulz@xxxxxxxxx>

If one improperly writes a rockchip,pins property, the pinctrl driver
basically just states that one in the myriad of pinctrl nodes is
improper but does not tell you which one.

Instead, let's print the full name of the Device Tree node that is
improper as well as provide more context on what the expected content
is.

Note that this should be rather unnecessary if one reads the output of
the dtbs_check as it would be highlighted as an error.

Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxx>
---
 drivers/pinctrl/pinctrl-rockchip.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 5c1bc4d5b662ed403ea5c8e57a8e1cad913a31a5..04e85a6037c93f415670b286f91fccada0d38fbf 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -3227,7 +3227,9 @@ static int rockchip_pinctrl_parse_groups(struct device_node *np,
 	/* we do not check return since it's safe node passed down */
 	size /= sizeof(*list);
 	if (!size || size % 4)
-		return dev_err_probe(dev, -EINVAL, "wrong pins number or pins and configs should be by 4\n");
+		return dev_err_probe(dev, -EINVAL,
+				     "%pOF: rockchip,pins: expected one or more of <bank pin mux CONFIG>, got %d args instead\n",
+				     np, size);
 
 	grp->npins = size / 4;
 

---
base-commit: e32cde8d2bd7d251a8f9b434143977ddf13dcec6
change-id: 20241002-pinctrl-rockchip-error-modulo-4-8fb1affc063a

Best regards,
-- 
Quentin Schulz <quentin.schulz@xxxxxxxxx>





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