linux_dsm_epyc7002/drivers/clk/clk.h
Stephen Boyd dde4eff47c clk: Look for parents with clkdev based clk_lookups
In addition to looking for DT based parents, support clkdev based
clk_lookups. This should allow non-DT based clk drivers to participate
in the parent lookup process.

Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-19 14:53:00 -07:00

43 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* Sylwester Nawrocki <s.nawrocki@samsung.com>
*/
struct clk_hw;
struct device;
struct of_phandle_args;
#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
struct clk_hw *of_clk_get_hw(struct device_node *np,
int index, const char *con_id);
#else /* !CONFIG_COMMON_CLK || !CONFIG_OF */
static inline struct clk_hw *of_clk_get_hw(struct device_node *np,
int index, const char *con_id)
{
return ERR_PTR(-ENOENT);
}
#endif
struct clk_hw *clk_find_hw(const char *dev_id, const char *con_id);
#ifdef CONFIG_COMMON_CLK
struct clk *clk_hw_create_clk(struct device *dev, struct clk_hw *hw,
const char *dev_id, const char *con_id);
void __clk_put(struct clk *clk);
#else
/* All these casts to avoid ifdefs in clkdev... */
static inline struct clk *
clk_hw_create_clk(struct device *dev, struct clk_hw *hw, const char *dev_id,
const char *con_id)
{
return (struct clk *)hw;
}
static struct clk_hw *__clk_get_hw(struct clk *clk)
{
return (struct clk_hw *)clk;
}
static inline void __clk_put(struct clk *clk) { }
#endif