staging: nvec: remove instantiating via platform device

Tegra has been converted to support device tree only. Remove support
for instantiating via platform device.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 14 insertions, 44 deletions

diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 197c393c4ca7..8e935a4aafe2 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -33,7 +33,6 @@
 #include <linux/mfd/core.h>
 #include <linux/mutex.h>
 #include <linux/notifier.h>
-#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
@@ -776,7 +775,6 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 {
         int err, ret;
         struct clk *i2c_clk;
-        struct nvec_platform_data *pdata = pdev->dev.platform_data;
         struct nvec_chip *nvec;
         struct nvec_msg *msg;
         struct resource *res;
@@ -785,6 +783,11 @@ static int tegra_nvec_probe(struct platform_device *pdev)
                 unmute_speakers[] = { NVEC_OEM0, 0x10, 0x59, 0x95 },
                 enable_event[7] = { NVEC_SYS, CNF_EVENT_REPORTING, true };
 
+        if(!pdev->dev.of_node) {
+                dev_err(&pdev->dev, "must be instantiated using device tree\n");
+                return -ENODEV;
+        }
+
         nvec = devm_kzalloc(&pdev->dev, sizeof(struct nvec_chip), GFP_KERNEL);
         if (nvec == NULL) {
                 dev_err(&pdev->dev, "failed to reserve memory\n");
@@ -793,23 +796,15 @@ static int tegra_nvec_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, nvec);
         nvec->dev = &pdev->dev;
 
-        if (pdata) {
-                nvec->gpio = pdata->gpio;
-                nvec->i2c_addr = pdata->i2c_addr;
-        } else if (nvec->dev->of_node) {
-                nvec->gpio = of_get_named_gpio(nvec->dev->of_node,
-                                        "request-gpios", 0);
-                if (nvec->gpio < 0) {
-                        dev_err(&pdev->dev, "no gpio specified");
-                        return -ENODEV;
-                }
-                if (of_property_read_u32(nvec->dev->of_node,
-                                        "slave-addr", &nvec->i2c_addr)) {
-                        dev_err(&pdev->dev, "no i2c address specified");
-                        return -ENODEV;
-                }
-        } else {
-                dev_err(&pdev->dev, "no platform data\n");
+        nvec->gpio = of_get_named_gpio(nvec->dev->of_node, "request-gpios", 0);
+        if (nvec->gpio < 0) {
+                dev_err(&pdev->dev, "no gpio specified");
+                return -ENODEV;
+        }
+
+        if (of_property_read_u32(nvec->dev->of_node, "slave-addr",
+                                 &nvec->i2c_addr)) {
+                dev_err(&pdev->dev, "no i2c address specified");
                 return -ENODEV;
         }
 
diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h
index 2b1316d87470..e880518935fb 100644
--- a/drivers/staging/nvec/nvec.h
+++ b/drivers/staging/nvec/nvec.h
@@ -103,31 +103,6 @@ struct nvec_msg {
 };
 
 /**
- * struct nvec_subdev - A subdevice of nvec, such as nvec_kbd
- * @name: The name of the sub device
- * @platform_data: Platform data
- * @id: Identifier of the sub device
- */
-struct nvec_subdev {
-        const char *name;
-        void *platform_data;
-        int id;
-};
-
-/**
- * struct nvec_platform_data - platform data for a tegra slave controller
- * @i2c_addr: number of i2c slave adapter the ec is connected to
- * @gpio: gpio number for the ec request line
- *
- * Platform data, to be used in board definitions. For an example, take a
- * look at the paz00 board in arch/arm/mach-tegra/board-paz00.c
- */
-struct nvec_platform_data {
-        int i2c_addr;
-        int gpio;
-};
-
-/**
  * struct nvec_chip - A single connection to an NVIDIA Embedded controller
  * @dev: The device
  * @gpio: The same as for &struct nvec_platform_data