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c67d0f2926
This isolates the custom S3C24xx GPIO definition table to <linux/platform_data/gpio-samsung-s3x24xx.h> as this is used in a few different places in the kernel, removing the need to depend on the implicit inclusion of <mach/gpio.h> from <linux/gpio.h> and thus getting rid of a few nasty cross-dependencies. We also delete the nifty CONFIG_S3C24XX_GPIO_EXTRA stuff. The biggest this can ever be for the S3C24XX is CONFIG_S3C24XX_GPIO_EXTRA = 128, and then for CPU_S3C2443 or CPU_S3C2416 32*12 GPIOs are added, so 32*12+128 = 512 is the absolute roof value on this platform. So we set the size of ARCH_NR_GPIO to this and the GPIOs array will fit any S3C24XX platform, as per pattern from other archs. ChangeLog v2->v3: - Move the movement of the S3C64XX gpio.h file out of this patch and into the follow-up patch where it belongs. ChangeLog v1->v2: - Added an #ifdef ARCH_S3C24XX around the header inclusion in drivers/gpio/gpio-samsung.c as we would otherwise have colliding definitions when compiling S3C64XX. - Rename inclusion guard in the header file. Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: linux-samsung-soc@vger.kernel.org Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
147 lines
3.2 KiB
C
147 lines
3.2 KiB
C
/*
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* arch/arm/mach-s3c2410/h1940-bluetooth.c
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* Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*
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* S3C2410 bluetooth "driver"
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*
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/string.h>
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#include <linux/ctype.h>
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#include <linux/leds.h>
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#include <linux/gpio.h>
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#include <linux/rfkill.h>
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#include <linux/platform_data/gpio-samsung-s3c24xx.h>
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#include <mach/hardware.h>
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#include <mach/regs-gpio.h>
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#include "h1940.h"
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#define DRV_NAME "h1940-bt"
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/* Bluetooth control */
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static void h1940bt_enable(int on)
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{
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if (on) {
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/* Power on the chip */
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gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 1);
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/* Reset the chip */
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mdelay(10);
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gpio_set_value(S3C2410_GPH(1), 1);
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mdelay(10);
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gpio_set_value(S3C2410_GPH(1), 0);
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h1940_led_blink_set(-EINVAL, GPIO_LED_BLINK, NULL, NULL);
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}
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else {
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gpio_set_value(S3C2410_GPH(1), 1);
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mdelay(10);
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gpio_set_value(S3C2410_GPH(1), 0);
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mdelay(10);
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gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 0);
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h1940_led_blink_set(-EINVAL, GPIO_LED_NO_BLINK_LOW, NULL, NULL);
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}
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}
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static int h1940bt_set_block(void *data, bool blocked)
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{
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h1940bt_enable(!blocked);
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return 0;
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}
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static const struct rfkill_ops h1940bt_rfkill_ops = {
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.set_block = h1940bt_set_block,
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};
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static int h1940bt_probe(struct platform_device *pdev)
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{
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struct rfkill *rfk;
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int ret = 0;
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ret = gpio_request(S3C2410_GPH(1), dev_name(&pdev->dev));
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if (ret) {
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dev_err(&pdev->dev, "could not get GPH1\n");
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return ret;
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}
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ret = gpio_request(H1940_LATCH_BLUETOOTH_POWER, dev_name(&pdev->dev));
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if (ret) {
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gpio_free(S3C2410_GPH(1));
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dev_err(&pdev->dev, "could not get BT_POWER\n");
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return ret;
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}
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/* Configures BT serial port GPIOs */
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s3c_gpio_cfgpin(S3C2410_GPH(0), S3C2410_GPH0_nCTS0);
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s3c_gpio_setpull(S3C2410_GPH(0), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPH(1), S3C2410_GPIO_OUTPUT);
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s3c_gpio_setpull(S3C2410_GPH(1), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPH(2), S3C2410_GPH2_TXD0);
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s3c_gpio_setpull(S3C2410_GPH(2), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPH(3), S3C2410_GPH3_RXD0);
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s3c_gpio_setpull(S3C2410_GPH(3), S3C_GPIO_PULL_NONE);
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rfk = rfkill_alloc(DRV_NAME, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
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&h1940bt_rfkill_ops, NULL);
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if (!rfk) {
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ret = -ENOMEM;
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goto err_rfk_alloc;
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}
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ret = rfkill_register(rfk);
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if (ret)
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goto err_rfkill;
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platform_set_drvdata(pdev, rfk);
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return 0;
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err_rfkill:
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rfkill_destroy(rfk);
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err_rfk_alloc:
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return ret;
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}
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static int h1940bt_remove(struct platform_device *pdev)
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{
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struct rfkill *rfk = platform_get_drvdata(pdev);
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platform_set_drvdata(pdev, NULL);
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gpio_free(S3C2410_GPH(1));
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if (rfk) {
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rfkill_unregister(rfk);
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rfkill_destroy(rfk);
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}
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rfk = NULL;
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h1940bt_enable(0);
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return 0;
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}
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static struct platform_driver h1940bt_driver = {
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.driver = {
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.name = DRV_NAME,
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},
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.probe = h1940bt_probe,
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.remove = h1940bt_remove,
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};
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module_platform_driver(h1940bt_driver);
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MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
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MODULE_DESCRIPTION("Driver for the iPAQ H1940 bluetooth chip");
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MODULE_LICENSE("GPL");
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