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The 'struct samsung_pwm_variant' argument passed to initialization functions is not modified, so it can be made const for safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210506202729.157260-2-krzysztof.kozlowski@canonical.com
33 lines
803 B
C
33 lines
803 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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*/
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#ifndef __CLOCKSOURCE_SAMSUNG_PWM_H
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#define __CLOCKSOURCE_SAMSUNG_PWM_H
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#include <linux/spinlock.h>
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#define SAMSUNG_PWM_NUM 5
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/*
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* Following declaration must be in an ifdef due to this symbol being static
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* in pwm-samsung driver if the clocksource driver is not compiled in and the
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* spinlock is not shared between both drivers.
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*/
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#ifdef CONFIG_CLKSRC_SAMSUNG_PWM
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extern spinlock_t samsung_pwm_lock;
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#endif
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struct samsung_pwm_variant {
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u8 bits;
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u8 div_base;
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u8 tclk_mask;
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u8 output_mask;
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bool has_tint_cstat;
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};
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void samsung_pwm_clocksource_init(void __iomem *base,
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unsigned int *irqs,
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const struct samsung_pwm_variant *variant);
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#endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */
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