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staging: nvec: remove instantiating via platform device

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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>
This commit is contained in:
Marc Dietrich 2013-06-21 10:28:54 +02:00 committed by Greg Kroah-Hartman
parent 2b8d5e5b39
commit 2c6cbdd0ef
2 changed files with 14 additions and 44 deletions
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33
drivers/staging/nvec/nvec.c
View file

@ -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;
}

25
drivers/staging/nvec/nvec.h
View file

@ -102,31 +102,6 @@ struct nvec_msg {
atomic_t used;
};
/**
* 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