forked from mirrors/linux
7ec27c9e97
Remove the delay for NFC sleep because the delay is only needed to guarantee that the NFC is awake. Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Link Layer for Samsung S3FWRN5 NCI based Driver
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*
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* Copyright (C) 2015 Samsung Electrnoics
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* Robert Baldyga <r.baldyga@samsung.com>
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* Copyright (C) 2020 Samsung Electrnoics
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* Bongsu Jeon <bongsu.jeon@samsung.com>
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*/
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include "phy_common.h"
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void s3fwrn5_phy_set_wake(void *phy_id, bool wake)
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{
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struct phy_common *phy = phy_id;
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mutex_lock(&phy->mutex);
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gpio_set_value(phy->gpio_fw_wake, wake);
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if (wake)
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msleep(S3FWRN5_EN_WAIT_TIME);
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mutex_unlock(&phy->mutex);
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}
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EXPORT_SYMBOL(s3fwrn5_phy_set_wake);
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bool s3fwrn5_phy_power_ctrl(struct phy_common *phy, enum s3fwrn5_mode mode)
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{
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if (phy->mode == mode)
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return false;
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phy->mode = mode;
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gpio_set_value(phy->gpio_en, 1);
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gpio_set_value(phy->gpio_fw_wake, 0);
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if (mode == S3FWRN5_MODE_FW)
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gpio_set_value(phy->gpio_fw_wake, 1);
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if (mode != S3FWRN5_MODE_COLD) {
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msleep(S3FWRN5_EN_WAIT_TIME);
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gpio_set_value(phy->gpio_en, 0);
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msleep(S3FWRN5_EN_WAIT_TIME);
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}
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return true;
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}
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EXPORT_SYMBOL(s3fwrn5_phy_power_ctrl);
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void s3fwrn5_phy_set_mode(void *phy_id, enum s3fwrn5_mode mode)
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{
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struct phy_common *phy = phy_id;
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mutex_lock(&phy->mutex);
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s3fwrn5_phy_power_ctrl(phy, mode);
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mutex_unlock(&phy->mutex);
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}
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EXPORT_SYMBOL(s3fwrn5_phy_set_mode);
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enum s3fwrn5_mode s3fwrn5_phy_get_mode(void *phy_id)
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{
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struct phy_common *phy = phy_id;
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enum s3fwrn5_mode mode;
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mutex_lock(&phy->mutex);
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mode = phy->mode;
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mutex_unlock(&phy->mutex);
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return mode;
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}
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EXPORT_SYMBOL(s3fwrn5_phy_get_mode);
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