50f894d50a
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Samsung SoC USB 1.1/2.0 PHY driver
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* Author: Kamil Debski <k.debski@samsung.com>
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*/
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#ifndef _PHY_EXYNOS_USB2_H
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#define _PHY_EXYNOS_USB2_H
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#include <linux/clk.h>
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#include <linux/phy/phy.h>
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#include <linux/device.h>
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#include <linux/regmap.h>
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#include <linux/spinlock.h>
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#include <linux/regulator/consumer.h>
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#define KHZ 1000
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#define MHZ (KHZ * KHZ)
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struct samsung_usb2_phy_driver;
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struct samsung_usb2_phy_instance;
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struct samsung_usb2_phy_config;
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struct samsung_usb2_phy_instance {
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const struct samsung_usb2_common_phy *cfg;
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struct phy *phy;
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struct samsung_usb2_phy_driver *drv;
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int int_cnt;
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int ext_cnt;
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};
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struct samsung_usb2_phy_driver {
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const struct samsung_usb2_phy_config *cfg;
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struct clk *clk;
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struct clk *ref_clk;
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struct regulator *vbus;
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unsigned long ref_rate;
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u32 ref_reg_val;
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struct device *dev;
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void __iomem *reg_phy;
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struct regmap *reg_pmu;
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struct regmap *reg_sys;
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spinlock_t lock;
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struct samsung_usb2_phy_instance instances[];
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};
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struct samsung_usb2_common_phy {
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int (*power_on)(struct samsung_usb2_phy_instance *);
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int (*power_off)(struct samsung_usb2_phy_instance *);
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unsigned int id;
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char *label;
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};
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struct samsung_usb2_phy_config {
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const struct samsung_usb2_common_phy *phys;
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int (*rate_to_clk)(unsigned long, u32 *);
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unsigned int num_phys;
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bool has_mode_switch;
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bool has_refclk_sel;
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};
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extern const struct samsung_usb2_phy_config exynos3250_usb2_phy_config;
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extern const struct samsung_usb2_phy_config exynos4210_usb2_phy_config;
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extern const struct samsung_usb2_phy_config exynos4x12_usb2_phy_config;
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extern const struct samsung_usb2_phy_config exynos5250_usb2_phy_config;
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extern const struct samsung_usb2_phy_config s5pv210_usb2_phy_config;
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#endif
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