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MA-18186 mfd: pca9450: handle EPROBE_DEFER when get pmic_plat_data

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If pca9450 is probed before the GPIO driver, it may miss the gpio_intr
configuration in dts.
Add defer probe handler to wait GPIO driver probe.

Change-Id: Iafbddcb0ee5144043c4e67f0e361cfe0577940e8
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Jindong Yue <jindong.yue@nxp.com>
This commit is contained in:
Jindong Yue
2020-10-29 10:54:52 +08:00
parent 7936848dbc
commit bb9da18bac
1 changed files with 3 additions and 2 deletions
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5
drivers/mfd/pca9450.c
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@ -166,7 +166,8 @@ static struct pca9450_board *pca9450_parse_dt(struct i2c_client *client,
board_info->gpio_intr = of_get_named_gpio(np, "gpio_intr", 0);
if (!gpio_is_valid(board_info->gpio_intr)) {
dev_err(&client->dev, "no pmic intr pin available\n");
if (PTR_ERR(board_info->gpio_intr) != -EPROBE_DEFER)
dev_err(&client->dev, "no pmic intr pin available\n");
goto err_intr;
}
@ -208,7 +209,7 @@ static int pca9450_i2c_probe(struct i2c_client *i2c,
}
if (!pmic_plat_data)
return -EINVAL;
return -EPROBE_DEFER;
pca9450 = kzalloc(sizeof(struct pca9450), GFP_KERNEL);
if (pca9450 == NULL)