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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b78d8e59a6
The patch makes necessary changes on gpio-mxc as below to turn it into an upstanding gpio driver. * Add a list to save all mx2 ports references, so that mx2_gpio_irq_handler can walk through all interrupt status registers * Use readl/writel to replace mach-specific accessors __raw_readl/__raw_writel * Change mxc_gpio_init into mxc_gpio_probe function * Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to be public at all, and also make some other cleanup on plat-mxc/include/mach/gpio.h at the same time And the patch then migrates mach-imx and mach-mx5 to the updated driver by adding corresponding platform devices. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/*
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* Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright 2008 Juergen Beisert, kernel@pengutronix.de
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __ASM_ARCH_MXC_GPIO_H__
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#define __ASM_ARCH_MXC_GPIO_H__
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#include <linux/spinlock.h>
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#include <mach/hardware.h>
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#include <asm-generic/gpio.h>
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/* There's a off-by-one betweem the gpio bank number and the gpiochip */
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/* range e.g. GPIO_1_5 is gpio 5 under linux */
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#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr))
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/* use gpiolib dispatchers */
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#define gpio_get_value __gpio_get_value
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#define gpio_set_value __gpio_set_value
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#define gpio_cansleep __gpio_cansleep
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#define gpio_to_irq(gpio) (MXC_GPIO_IRQ_START + (gpio))
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#define irq_to_gpio(irq) ((irq) - MXC_GPIO_IRQ_START)
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#endif
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