linux-stable/arch/arm/mach-s3c24xx/h1940-bluetooth.c
Thomas Gleixner abbf94fc29 ARM: s3c24xx: Fix invalid SPDX identifier
GPL-1.0 is not part of the valid identifier list and as its meaning is GPL
version 1.0 only this would be incompatible with the kernel license.

As this code was included into the kernel, assume its GPL-1.0+

Fixes: 84b2170109 ("ARM: S3C24XX: Add SPDX license identifiers")
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-04-23 17:24:02 +02:00

141 lines
3 KiB
C

// SPDX-License-Identifier: GPL-1.0+
//
// Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
//
// S3C2410 bluetooth "driver"
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/rfkill.h>
#include <plat/gpio-cfg.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/gpio-samsung.h>
#include "h1940.h"
#define DRV_NAME "h1940-bt"
/* Bluetooth control */
static void h1940bt_enable(int on)
{
if (on) {
/* Power on the chip */
gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 1);
/* Reset the chip */
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 1);
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
h1940_led_blink_set(NULL, GPIO_LED_BLINK, NULL, NULL);
}
else {
gpio_set_value(S3C2410_GPH(1), 1);
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
mdelay(10);
gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 0);
h1940_led_blink_set(NULL, GPIO_LED_NO_BLINK_LOW, NULL, NULL);
}
}
static int h1940bt_set_block(void *data, bool blocked)
{
h1940bt_enable(!blocked);
return 0;
}
static const struct rfkill_ops h1940bt_rfkill_ops = {
.set_block = h1940bt_set_block,
};
static int h1940bt_probe(struct platform_device *pdev)
{
struct rfkill *rfk;
int ret = 0;
ret = gpio_request(S3C2410_GPH(1), dev_name(&pdev->dev));
if (ret) {
dev_err(&pdev->dev, "could not get GPH1\n");
return ret;
}
ret = gpio_request(H1940_LATCH_BLUETOOTH_POWER, dev_name(&pdev->dev));
if (ret) {
gpio_free(S3C2410_GPH(1));
dev_err(&pdev->dev, "could not get BT_POWER\n");
return ret;
}
/* Configures BT serial port GPIOs */
s3c_gpio_cfgpin(S3C2410_GPH(0), S3C2410_GPH0_nCTS0);
s3c_gpio_setpull(S3C2410_GPH(0), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(1), S3C2410_GPIO_OUTPUT);
s3c_gpio_setpull(S3C2410_GPH(1), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(2), S3C2410_GPH2_TXD0);
s3c_gpio_setpull(S3C2410_GPH(2), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(3), S3C2410_GPH3_RXD0);
s3c_gpio_setpull(S3C2410_GPH(3), S3C_GPIO_PULL_NONE);
rfk = rfkill_alloc(DRV_NAME, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
&h1940bt_rfkill_ops, NULL);
if (!rfk) {
ret = -ENOMEM;
goto err_rfk_alloc;
}
ret = rfkill_register(rfk);
if (ret)
goto err_rfkill;
platform_set_drvdata(pdev, rfk);
return 0;
err_rfkill:
rfkill_destroy(rfk);
err_rfk_alloc:
return ret;
}
static int h1940bt_remove(struct platform_device *pdev)
{
struct rfkill *rfk = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
gpio_free(S3C2410_GPH(1));
if (rfk) {
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
rfk = NULL;
h1940bt_enable(0);
return 0;
}
static struct platform_driver h1940bt_driver = {
.driver = {
.name = DRV_NAME,
},
.probe = h1940bt_probe,
.remove = h1940bt_remove,
};
module_platform_driver(h1940bt_driver);
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
MODULE_DESCRIPTION("Driver for the iPAQ H1940 bluetooth chip");
MODULE_LICENSE("GPL");