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path: root/sound/soc/codecs/rl6231.h
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/*
 * rl6231.h - RL6231 class device shared support
 *
 * Copyright 2014 Realtek Semiconductor Corp.
 *
 * Author: Oder Chiou <oder_chiou@realtek.com>
 *
 * 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.
 */

#ifndef __RL6231_H__
#define __RL6231_H__

#define RL6231_PLL_INP_MAX	40000000
#define RL6231_PLL_INP_MIN	256000
#define RL6231_PLL_N_MAX	0x1ff
#define RL6231_PLL_K_MAX	0x1f
#define RL6231_PLL_M_MAX	0xf

struct rl6231_pll_code {
	bool m_bp; /* Indicates bypass m code or not. */
	int m_code;
	int n_code;
	int k_code;
};

int rl6231_calc_dmic_clk(int rate);
int rl6231_pll_calc(const unsigned int freq_in,
	const unsigned int freq_out, struct rl6231_pll_code *pll_code);
int rl6231_get_clk_info(int sclk, int rate);
int rl6231_get_pre_div(struct regmap *map, unsigned int reg, int sft);

#endif /* __RL6231_H__ */
ref='/cgit.cgi/linux/net-next.git/commit/sound/soc/samsung/s3c2412-i2s.c?h=nds-private-remove&id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER -EINVAL and so on. Currently, for the optional property "enable-gpio", we only check -EPROBE_DEFER, this is not enough since there may be misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return -EINVAL in this case, we should return immediately here. And for the optional property "gpios", we didn't check the return value, the driver will continue to the point where gpio_request_array() is called, it doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here. This patch tries to address these two issues by properly checking the return value of of_get_named_gpio. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/samsung/s3c2412-i2s.c')