diff options
Diffstat (limited to 'drivers/gpio/gpio-msic.c')
| -rw-r--r-- | drivers/gpio/gpio-msic.c | 34 |
1 files changed, 9 insertions, 25 deletions
diff --git a/drivers/gpio/gpio-msic.c b/drivers/gpio/gpio-msic.c index 3b34dbecef99..7e3c96e4ab2c 100644 --- a/drivers/gpio/gpio-msic.c +++ b/drivers/gpio/gpio-msic.c @@ -1,32 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Intel Medfield MSIC GPIO driver> * Copyright (c) 2011, Intel Corporation. * * Author: Mathias Nyman <mathias.nyman@linux.intel.com> * Based on intel_pmic_gpio.c - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> #include <linux/gpio/driver.h> -#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> #include <linux/mfd/intel_msic.h> +#include <linux/platform_device.h> +#include <linux/slab.h> /* the offset for the mapping of global gpio pin to irq */ #define MSIC_GPIO_IRQ_OFFSET 0x100 @@ -237,20 +224,17 @@ static void msic_gpio_irq_handler(struct irq_desc *desc) struct msic_gpio *mg = irq_data_get_irq_handler_data(data); struct irq_chip *chip = irq_data_get_irq_chip(data); struct intel_msic *msic = pdev_to_intel_msic(mg->pdev); + unsigned long pending; int i; int bitnr; u8 pin; - unsigned long pending = 0; for (i = 0; i < (mg->chip.ngpio / BITS_PER_BYTE); i++) { intel_msic_irq_read(msic, INTEL_MSIC_GPIO0LVIRQ + i, &pin); pending = pin; - if (pending) { - for_each_set_bit(bitnr, &pending, BITS_PER_BYTE) - generic_handle_irq(mg->irq_base + - (i * BITS_PER_BYTE) + bitnr); - } + for_each_set_bit(bitnr, &pending, BITS_PER_BYTE) + generic_handle_irq(mg->irq_base + i * BITS_PER_BYTE + bitnr); } chip->irq_eoi(data); } |