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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a2b760a601
The argument "override_active_level" made it possible to enforce a specific polarity on the write-protect GPIO line. All callers in the kernel pass "false" to this call after I have converted all drivers to use GPIO machine descriptors, so remove the argument and clean out this. This kind of polarity inversion should be handled by the GPIO descriptor inside the GPIO library if needed. This rids us of one instance of the kludgy calls into the gpiod_get_raw_value() API. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*
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* Generic GPIO card-detect helper header
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*
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* Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef MMC_SLOT_GPIO_H
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#define MMC_SLOT_GPIO_H
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#include <linux/types.h>
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#include <linux/irqreturn.h>
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struct mmc_host;
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int mmc_gpio_get_ro(struct mmc_host *host);
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int mmc_gpio_get_cd(struct mmc_host *host);
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int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
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unsigned int idx, bool override_active_level,
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unsigned int debounce, bool *gpio_invert);
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int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
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unsigned int idx,
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unsigned int debounce, bool *gpio_invert);
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void mmc_gpio_set_cd_isr(struct mmc_host *host,
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irqreturn_t (*isr)(int irq, void *dev_id));
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int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on);
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void mmc_gpiod_request_cd_irq(struct mmc_host *host);
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bool mmc_can_gpio_cd(struct mmc_host *host);
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bool mmc_can_gpio_ro(struct mmc_host *host);
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#endif
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