diff options
Diffstat (limited to 'arch/arm/mach-msm/pmic8058-mpp.c')
| -rw-r--r-- | arch/arm/mach-msm/pmic8058-mpp.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/pmic8058-mpp.c b/arch/arm/mach-msm/pmic8058-mpp.c new file mode 100644 index 000000000000..5c4f396c544b --- /dev/null +++ b/arch/arm/mach-msm/pmic8058-mpp.c @@ -0,0 +1,105 @@ +/* Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Code Aurora Forum nor + * the names of its contributors may be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * Alternatively, provided that this notice is retained in full, this software + * may be relicensed by the recipient under the terms of the GNU General Public + * License version 2 ("GPL") and only version 2, in which case the provisions of + * the GPL apply INSTEAD OF those given above. If the recipient relicenses the + * software under the GPL, then the identification text in the MODULE_LICENSE + * macro must be changed to reflect "GPLv2" instead of "Dual BSD/GPL". Once a + * recipient changes the license terms to the GPL, subsequent recipients shall + * not relicense under alternate licensing terms, including the BSD or dual + * BSD/GPL terms. In addition, the following license statement immediately + * below and between the words START and END shall also then apply when this + * software is relicensed under the GPL: + * + * START + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 and only version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * END + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + */ +/* + * Qualcomm PMIC8058 MPP driver + * + */ + +#include <linux/gpio.h> +#include <linux/mfd/pmic8058.h> +#include "gpio_chip.h" + +#define PM8058_MPP_TO_INT(n) (PMIC8058_IRQ_BASE + NR_PMIC8058_GPIO_IRQS + (n)) + +static int pm8058_mpp_get_irq_num(struct gpio_chip *chip, + unsigned int gpio, + unsigned int *irqp, + unsigned long *irqnumflagsp) +{ + gpio -= chip->start; + *irqp = PM8058_MPP_TO_INT(gpio); + if (irqnumflagsp) + *irqnumflagsp = 0; + return 0; +} + +static int pm8058_mpp_read(struct gpio_chip *chip, unsigned n) +{ + n -= chip->start; + return pm8058_mpp_get(n); +} + +struct msm_gpio_chip pm8058_mpp_chip = { + .chip = { + .start = NR_GPIO_IRQS + NR_PMIC8058_GPIO_IRQS, + .end = NR_GPIO_IRQS + NR_PMIC8058_GPIO_IRQS + + NR_PMIC8058_MPP_IRQS - 1, + .get_irq_num = pm8058_mpp_get_irq_num, + .read = pm8058_mpp_read, + } +}; + +static int __init pm8058_mpp_init(void) +{ + int rc; + + rc = register_gpio_chip(&pm8058_mpp_chip.chip); + pr_info("%s: register_gpio_chip(): rc=%d\n", __func__, rc); + + return rc; +} +device_initcall(pm8058_mpp_init); |