static int tps65217_bl_probe(struct platform_device *pdev)
{
int rc;
struct i2c_client *i2c_client = to_i2c_client(pdev->dev.parent);
struct tps65217 *tps = i2c_get_clientdata(i2c_client);
struct tps65217_bl *tps65217_bl;
struct tps65217_bl_pdata *pdata;
struct backlight_properties bl_props;
tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl),
GFP_KERNEL);
if (tps65217_bl == NULL) {
dev_err(&pdev->dev, "allocation of struct tps65217_bl failed\n");
return -ENOMEM;
}
tps65217_bl->tps = tps;
tps65217_bl->dev = &pdev->dev;
tps65217_bl->on = 0;
if (tps65217_bl->dev->of_node)
pdata = tps65217_bl_parse_dt(tps65217_bl);
else
pdata = pdev->dev.platform_data;
if (IS_ERR(pdata))
return PTR_ERR(pdata);
rc = tps65217_bl_hw_init(tps65217_bl, pdata);
if (rc)
goto err_bl_hw_init;
memset(&bl_props, 0, sizeof(struct backlight_properties));
bl_props.type = BACKLIGHT_RAW;
bl_props.max_brightness = 100;
tps65217_bl->bl = backlight_device_register(pdev->name,
tps65217_bl->dev, tps65217_bl,
&tps65217_bl_ops, &bl_props);
if (IS_ERR(tps65217_bl->bl)) {
rc = PTR_ERR(tps65217_bl->bl);
dev_err(tps65217_bl->dev,
"registration of backlight device failed: %d\n", rc);
goto err_reg_bl;
}
// Set the default brightness to 90%
tps65217_bl->bl->props.brightness = 90;
return 0;
err_reg_bl:
err_bl_hw_init:
return rc;
}
static int tps65217_bl_probe(struct platform_device *pdev)
{
int rc;
struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65217_bl *tps65217_bl;
struct tps65217_bl_pdata *pdata;
struct backlight_properties bl_props;
if (tps->dev->of_node) {
pdata = tps65217_bl_parse_dt(pdev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
} else {
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "no platform data provided\n");
return -EINVAL;
}
}
tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl),
GFP_KERNEL);
if (tps65217_bl == NULL)
return -ENOMEM;
tps65217_bl->tps = tps;
tps65217_bl->dev = &pdev->dev;
tps65217_bl->is_enabled = false;
rc = tps65217_bl_hw_init(tps65217_bl, pdata);
if (rc)
return rc;
memset(&bl_props, 0, sizeof(struct backlight_properties));
bl_props.type = BACKLIGHT_RAW;
bl_props.max_brightness = 100;
tps65217_bl->bl = devm_backlight_device_register(&pdev->dev, pdev->name,
tps65217_bl->dev, tps65217_bl,
&tps65217_bl_ops, &bl_props);
if (IS_ERR(tps65217_bl->bl)) {
dev_err(tps65217_bl->dev,
"registration of backlight device failed: %d\n", rc);
return PTR_ERR(tps65217_bl->bl);
}
tps65217_bl->bl->props.brightness = pdata->dft_brightness;
backlight_update_status(tps65217_bl->bl);
platform_set_drvdata(pdev, tps65217_bl);
return 0;
}