forked from Minki/linux
1a721859f8
The mmci driver can handle a GPIO pin for card detect, using IRQs and all just fine, so switch to using that. Delete the old bogus input device hack, if userspace need to detect MMC cards it should use udev like everyone else. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/*
|
|
*
|
|
* arch/arm/mach-u300/mmc.c
|
|
*
|
|
*
|
|
* Copyright (C) 2009 ST-Ericsson AB
|
|
* License terms: GNU General Public License (GPL) version 2
|
|
*
|
|
* Author: Linus Walleij <linus.walleij@stericsson.com>
|
|
* Author: Johan Lundin <johan.lundin@stericsson.com>
|
|
* Author: Jonas Aaberg <jonas.aberg@stericsson.com>
|
|
*/
|
|
#include <linux/device.h>
|
|
#include <linux/amba/bus.h>
|
|
#include <linux/mmc/host.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/amba/mmci.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "mmc.h"
|
|
#include "padmux.h"
|
|
|
|
static struct mmci_platform_data mmc0_plat_data = {
|
|
/*
|
|
* Do not set ocr_mask or voltage translation function,
|
|
* we have a regulator we can control instead.
|
|
*/
|
|
/* Nominally 2.85V on our platform */
|
|
.f_max = 24000000,
|
|
.gpio_wp = -1,
|
|
.gpio_cd = U300_GPIO_PIN_MMC_CD,
|
|
.cd_invert = true,
|
|
.capabilities = MMC_CAP_MMC_HIGHSPEED |
|
|
MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
|
|
};
|
|
|
|
int __devinit mmc_init(struct amba_device *adev)
|
|
{
|
|
struct device *mmcsd_device = &adev->dev;
|
|
struct pmx *pmx;
|
|
int ret = 0;
|
|
|
|
mmcsd_device->platform_data = &mmc0_plat_data;
|
|
|
|
/*
|
|
* Setup padmuxing for MMC. Since this must always be
|
|
* compiled into the kernel, pmx is never released.
|
|
*/
|
|
pmx = pmx_get(mmcsd_device, U300_APP_PMX_MMC_SETTING);
|
|
|
|
if (IS_ERR(pmx))
|
|
pr_warning("Could not get padmux handle\n");
|
|
else {
|
|
ret = pmx_activate(mmcsd_device, pmx);
|
|
if (IS_ERR_VALUE(ret))
|
|
pr_warning("Could not activate padmuxing\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|