A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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dlkm: optimize st21nfc driver

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Change some logs and optimize the clkreq_gpio
operation for st21nfc driver.

Change-Id: I1b9b5cdfd711bb2b051d1997124e9211a3b50384
Signed-off-by: Weilong Wu <wuwl10@motorola.com>
Reviewed-on: https://gerrit.mot.com/1264033
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Balachandar Swami <balaswami@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Weilong Wu 2018-11-02 15:02:30 +08:00
commit 74b852a4c3
1 changed files with 6 additions and 4 deletions
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10
drivers/nfc/st21nfc/st21nfc.c
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@ -617,14 +617,14 @@ static int st21nfc_probe(struct i2c_client *client,
ret = gpio_request(platform_data->irq_gpio, "irq_gpio");
if (ret) {
pr_err("gpio_request failed\n");
pr_err("irq gpio_request failed\n");
ret = -ENODEV;
goto err_free_write_buffer;
}
ret = gpio_direction_input(platform_data->irq_gpio);
if (ret) {
pr_err("gpio_direction_input failed\n");
pr_err("irq gpio_direction_input failed\n");
ret = -ENODEV;
goto err_free_write_buffer;
}
@ -632,17 +632,19 @@ static int st21nfc_probe(struct i2c_client *client,
if (gpio_is_valid(platform_data->clkreq_gpio)) {
ret = gpio_request(platform_data->clkreq_gpio, "clkreq_gpio");
if (ret) {
pr_err("[OPTIONAL] gpio_request failed\n");
pr_err("clkreq gpio_request failed\n");
ret = -ENODEV;
goto err_free_write_buffer;
} else {
ret = gpio_direction_input(platform_data->clkreq_gpio);
if (ret) {
pr_err("[OPTIONAL] gpio_direction_input failed\n");
pr_err("clkreq gpio_direction_input failed\n");
ret = -ENODEV;
goto err_clkreq_gpio;
}
}
} else {
pr_warn("clkreq gpio not provided. Ext xtal expected\n");
}
/* initialize irqIsAttached variable */