forked from Minki/linux
c673a2b400
Commit 21f2aae91e902aad ("leds: leds-gpio: Add support for GPIO
descriptors") already converted most of the driver to use GPIO descriptors.
What is still missing is the platform specific hook gpio_blink_set() and
board files which pass legacy GPIO numbers to this driver in platform data.
In this patch we handle the former and convert gpio_blink_set() to take
GPIO descriptor instead. In order to do this we convert the existing four
users to accept GPIO descriptor and translate it to legacy GPIO number in
the platform code. This effectively "pushes" legacy GPIO number usage from
the driver to platforms.
Also add comment to the remaining block describing that it is legacy code
path and we are getting rid of it eventually.
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
40 lines
1019 B
C
40 lines
1019 B
C
/*
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* arch/arm/plat-orion/include/plat/orion-gpio.h
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*
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* Marvell Orion SoC GPIO handling.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __PLAT_GPIO_H
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#define __PLAT_GPIO_H
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/irqdomain.h>
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struct gpio_desc;
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/*
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* Orion-specific GPIO API extensions.
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*/
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void orion_gpio_set_unused(unsigned pin);
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void orion_gpio_set_blink(unsigned pin, int blink);
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int orion_gpio_led_blink_set(struct gpio_desc *desc, int state,
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unsigned long *delay_on, unsigned long *delay_off);
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#define GPIO_INPUT_OK (1 << 0)
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#define GPIO_OUTPUT_OK (1 << 1)
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void orion_gpio_set_valid(unsigned pin, int mode);
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/* Initialize gpiolib. */
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void __init orion_gpio_init(struct device_node *np,
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int gpio_base, int ngpio,
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void __iomem *base, int mask_offset,
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int secondary_irq_base,
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int irq[4]);
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#endif
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