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 <sakari.ailus@iki.fi>
This reverts commit b6100f10bdc2019a65297d2597c388de2f7dd653.

2 files changed, 9 insertions, 118 deletions

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 <sakari.ailus@iki.fi>
  *      Tuukka Toivonen <tuukkat76@gmail.com>
- *      Pavel Machek <pavel@ucw.cz>
  *
  * 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 <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/slab.h>
-#include <linux/of_gpio.h>
-#include <linux/gpio.h>
 #include <media/adp1653.h>
 #include <media/v4l2-device.h>
 
@@ -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,
 };