From: Mauro Carvalho Chehab Date: Thu, 9 Apr 2015 10:33:45 +0000 (-0300) Subject: Revert "[media] Add device tree support to adp1653 flash driver" X-Git-Tag: firefly_0821_release~176^2~795^2~1025 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=be8e58d93fba531b12ef2fce4fb33c9c5fb5b69f;p=firefly-linux-kernel-4.4.55.git Revert "[media] Add device tree support to adp1653 flash driver" As requested by Sakari: "The driver changes are still being reviewed. It's been proposed that the max-microamp property be renamed." So, as the DT bindings are not agreed upstream yet, let's revert it. Requested-by: Sakari Ailus This reverts commit b6100f10bdc2019a65297d2597c388de2f7dd653. --- diff --git a/Documentation/devicetree/bindings/media/i2c/adp1653.txt b/Documentation/devicetree/bindings/media/i2c/adp1653.txt deleted file mode 100644 index 0fc28a95e2f4..000000000000 --- a/Documentation/devicetree/bindings/media/i2c/adp1653.txt +++ /dev/null @@ -1,37 +0,0 @@ -* Analog Devices ADP1653 flash LED driver - -Required Properties: - - - compatible: Must contain be "adi,adp1653" - - - reg: I2C slave address - - - gpios: References to the GPIO that controls the power for the chip. - -There are two led outputs available - flash and indicator. One led is -represented by one child node, nodes need to be named "flash" and "indicator". - -Required properties of the LED child node: -- max-microamp : see Documentation/devicetree/bindings/leds/common.txt - -Required properties of the flash LED child node: - -- flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt -- flash-timeout-us : see Documentation/devicetree/bindings/leds/common.txt - -Example: - - adp1653: led-controller@30 { - compatible = "adi,adp1653"; - reg = <0x30>; - gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>; /* 88 */ - - flash { - flash-timeout-us = <500000>; - flash-max-microamp = <320000>; - max-microamp = <50000>; - }; - indicator { - max-microamp = <17500>; - }; - }; diff --git a/drivers/media/i2c/adp1653.c b/drivers/media/i2c/adp1653.c index 0341009d71fc..873fe1949e98 100644 --- a/drivers/media/i2c/adp1653.c +++ b/drivers/media/i2c/adp1653.c @@ -8,7 +8,6 @@ * Contributors: * Sakari Ailus * Tuukka Toivonen - * Pavel Machek * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -35,8 +34,6 @@ #include #include #include -#include -#include #include #include @@ -309,17 +306,9 @@ adp1653_init_device(struct adp1653_flash *flash) static int __adp1653_set_power(struct adp1653_flash *flash, int on) { - int ret = 0; - - if (flash->platform_data->power) { - ret = flash->platform_data->power(&flash->subdev, on); - } else { - gpio_set_value(flash->platform_data->power_gpio, on); - if (on) - /* Some delay is apparently required. */ - udelay(20); - } + int ret; + ret = flash->platform_data->power(&flash->subdev, on); if (ret < 0) return ret; @@ -327,13 +316,8 @@ __adp1653_set_power(struct adp1653_flash *flash, int on) return 0; ret = adp1653_init_device(flash); - if (ret >= 0) - return ret; - - if (flash->platform_data->power) + if (ret < 0) flash->platform_data->power(&flash->subdev, 0); - else - gpio_set_value(flash->platform_data->power_gpio, 0); return ret; } @@ -423,77 +407,21 @@ static int adp1653_resume(struct device *dev) #endif /* CONFIG_PM */ -static int adp1653_of_init(struct i2c_client *client, - struct adp1653_flash *flash, - struct device_node *node) -{ - u32 val; - struct adp1653_platform_data *pd; - enum of_gpio_flags flags; - int gpio; - struct device_node *child; - - if (!node) - return -EINVAL; - - pd = devm_kzalloc(&client->dev, sizeof(*pd), GFP_KERNEL); - if (!pd) - return -ENOMEM; - flash->platform_data = pd; - - child = of_get_child_by_name(node, "flash"); - if (!child) - return -EINVAL; - if (of_property_read_u32(child, "flash-timeout-microsec", &val)) - return -EINVAL; - - pd->max_flash_timeout = val; - if (of_property_read_u32(child, "flash-max-microamp", &val)) - return -EINVAL; - pd->max_flash_intensity = val/1000; - - if (of_property_read_u32(child, "max-microamp", &val)) - return -EINVAL; - pd->max_torch_intensity = val/1000; - - child = of_get_child_by_name(node, "indicator"); - if (!child) - return -EINVAL; - if (of_property_read_u32(child, "max-microamp", &val)) - return -EINVAL; - pd->max_indicator_intensity = val; - - if (!of_find_property(node, "gpios", NULL)) { - dev_err(&client->dev, "No gpio node\n"); - return -EINVAL; - } - - pd->power_gpio = of_get_gpio_flags(node, 0, &flags); - if (pd->power_gpio < 0) { - dev_err(&client->dev, "Error getting GPIO\n"); - return -EINVAL; - } - - return 0; -} - - static int adp1653_probe(struct i2c_client *client, const struct i2c_device_id *devid) { struct adp1653_flash *flash; int ret; + /* we couldn't work without platform data */ + if (client->dev.platform_data == NULL) + return -ENODEV; + flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL); if (flash == NULL) return -ENOMEM; flash->platform_data = client->dev.platform_data; - if (!flash->platform_data) { - ret = adp1653_of_init(client, flash, client->dev.of_node); - if (ret) - return ret; - } mutex_init(&flash->power_lock); @@ -510,10 +438,10 @@ static int adp1653_probe(struct i2c_client *client, goto free_and_quit; flash->subdev.entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH; + return 0; free_and_quit: - dev_err(&client->dev, "adp1653: failed to register device\n"); v4l2_ctrl_handler_free(&flash->ctrls); return ret; } @@ -536,7 +464,7 @@ static const struct i2c_device_id adp1653_id_table[] = { }; MODULE_DEVICE_TABLE(i2c, adp1653_id_table); -static const struct dev_pm_ops adp1653_pm_ops = { +static struct dev_pm_ops adp1653_pm_ops = { .suspend = adp1653_suspend, .resume = adp1653_resume, };