diff options
Diffstat (limited to 'drivers/clk/clk-pwm.c')
| -rw-r--r-- | drivers/clk/clk-pwm.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/clk/clk-pwm.c b/drivers/clk/clk-pwm.c index 02b472a1f9b0..87fe0b0e01a3 100644 --- a/drivers/clk/clk-pwm.c +++ b/drivers/clk/clk-pwm.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2014 Philipp Zabel, Pengutronix * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * * PWM (mis)used as clock output */ #include <linux/clk-provider.h> @@ -47,10 +44,24 @@ static unsigned long clk_pwm_recalc_rate(struct clk_hw *hw, return clk_pwm->fixed_rate; } +static int clk_pwm_get_duty_cycle(struct clk_hw *hw, struct clk_duty *duty) +{ + struct clk_pwm *clk_pwm = to_clk_pwm(hw); + struct pwm_state state; + + pwm_get_state(clk_pwm->pwm, &state); + + duty->num = state.duty_cycle; + duty->den = state.period; + + return 0; +} + static const struct clk_ops clk_pwm_ops = { .prepare = clk_pwm_prepare, .unprepare = clk_pwm_unprepare, .recalc_rate = clk_pwm_recalc_rate, + .get_duty_cycle = clk_pwm_get_duty_cycle, }; static int clk_pwm_probe(struct platform_device *pdev) |