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gpio: pca9570: Use I2C match data

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The driver stores chip metadata in both the OF match table and the I2C
id table, but probe currently reads it with device_get_match_data().
That helper only returns firmware-node match data, so an I2C-id/modalias
match can leave chip_data NULL before the driver dereferences it to read
ngpio.

Use i2c_get_match_data() so the I2C id table driver_data is consumed
when firmware match data is not present.

Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260624053744.72612-1-pengpeng@iscas.ac.cn
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
This commit is contained in:
Pengpeng Hou
2026-06-26 11:30:50 +02:00
committed by Bartosz Golaszewski
parent a57e27c43b
commit 415c63896b
1 changed files with 1 additions and 1 deletions
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drivers/gpio/gpio-pca9570.c
+1 -1
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@@ -133,7 +133,7 @@ static int pca9570_probe(struct i2c_client *client)
gpio->chip.get = pca9570_get;
gpio->chip.set = pca9570_set;
gpio->chip.base = -1;
gpio->chip_data = device_get_match_data(&client->dev);
gpio->chip_data = i2c_get_match_data(client);
gpio->chip.ngpio = gpio->chip_data->ngpio;
gpio->chip.can_sleep = true;