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sgm7220: add sgm7220 pwr interface

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sgm7220/power
add sgm7220 power on interface

Change-Id: I3b78a9f5ae126e3be5ce9638520d7093bd331dff
Reviewed-on: https://gerrit.mot.com/2075603
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Haijian Ma <mahj8@motorola.com>
Reviewed-by: Yuecai Liu <liuyc20@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
chailu1 2021-09-24 16:21:33 +08:00 • committed by Lu Chai
commit 1fb802d332
1 changed files with 36 additions and 2 deletions
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38
drivers/usb/typec/mmi_tcpc/tcpc_sgm7220.c
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@ -1096,6 +1096,39 @@ static int sgm7220_check_revision(struct i2c_client *client)
return data;
}
static int sgm7220_pwr_on(struct device *dev)
{
struct device_node *np = dev->of_node;
int pwr_en_gpio;
int ret;
pwr_en_gpio = of_get_named_gpio(np, "sgm7220,pwr_gpio", 0);
if (pwr_en_gpio < 0) {
pr_err("%s no sgm7220,pwr_gpio info\n", __func__);
return -EINVAL;
}
if (!gpio_is_valid(pwr_en_gpio)) {
pr_err("%s pwr gpio is invalid\n", __func__);
return -EINVAL;
}
ret = devm_gpio_request(dev, pwr_en_gpio, "sgm7220-pwr-gpio");
if (ret < 0) {
pr_err("%s failed to request GPIO%d (ret = %d)\n", __func__, pwr_en_gpio, ret);
return -EINVAL;
}
ret = gpio_direction_output(pwr_en_gpio, 1);
if (ret < 0) {
pr_err("%s: failed to set GPIO%d as out high(ret = %d)\n",
__func__, pwr_en_gpio, ret);
return -EINVAL;
}
return 0;
}
static int sgm7220_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -1112,12 +1145,13 @@ static int sgm7220_i2c_probe(struct i2c_client *client,
pr_info("I2C functionality check : failuare...\n");
}
mutex_init(&mutex);
mutex_init(&mutex2);
sgm7220_pwr_on(&client->dev);
chip_id = sgm7220_check_revision(client);
if (chip_id < 0)
return chip_id;
mutex_init(&mutex);
mutex_init(&mutex2);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;