linux/drivers/clk/qcom/clk-regmap.h
Arnd Bergmann 8d8c313124 clk: define to_clk_regmap() as inline function
Nesting container_of() causes warnings with W=2, which is
annoying if it happens in headers and fills the build log
like:

In file included from drivers/clk/qcom/clk-alpha-pll.c:6:
drivers/clk/qcom/clk-alpha-pll.c: In function 'clk_alpha_pll_hwfsm_enable':
include/linux/kernel.h:852:8: warning: declaration of '__mptr' shadows a previous local [-Wshadow]
  852 |  void *__mptr = (void *)(ptr);     \
      |        ^~~~~~
drivers/clk/qcom/clk-alpha-pll.c:155:31: note: in expansion of macro 'container_of'
  155 | #define to_clk_alpha_pll(_hw) container_of(to_clk_regmap(_hw), \
      |                               ^~~~~~~~~~~~
drivers/clk/qcom/clk-regmap.h:27:28: note: in expansion of macro 'container_of'
   27 | #define to_clk_regmap(_hw) container_of(_hw, struct clk_regmap, hw)
      |                            ^~~~~~~~~~~~
drivers/clk/qcom/clk-alpha-pll.c:155:44: note: in expansion of macro 'to_clk_regmap'
  155 | #define to_clk_alpha_pll(_hw) container_of(to_clk_regmap(_hw), \
      |                                            ^~~~~~~~~~~~~
drivers/clk/qcom/clk-alpha-pll.c:254:30: note: in expansion of macro 'to_clk_alpha_pll'
  254 |  struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
      |                              ^~~~~~~~~~~~~~~~
include/linux/kernel.h:852:8: note: shadowed declaration is here
  852 |  void *__mptr = (void *)(ptr);     \
      |        ^~~~~~

Redefine two copies of the to_clk_regmap() macro as inline functions
to avoid a lot of these.

Fixes: ea11dda9e0 ("clk: meson: add regmap clocks")
Fixes: 085d7a4554 ("clk: qcom: Add a regmap type clock struct")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201026161411.3708639-1-arnd@kernel.org
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-28 16:34:44 -07:00

39 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2014, The Linux Foundation. All rights reserved. */
#ifndef __QCOM_CLK_REGMAP_H__
#define __QCOM_CLK_REGMAP_H__
#include <linux/clk-provider.h>
struct regmap;
/**
* struct clk_regmap - regmap supporting clock
* @hw: handle between common and hardware-specific interfaces
* @regmap: regmap to use for regmap helpers and/or by providers
* @enable_reg: register when using regmap enable/disable ops
* @enable_mask: mask when using regmap enable/disable ops
* @enable_is_inverted: flag to indicate set enable_mask bits to disable
* when using clock_enable_regmap and friends APIs.
*/
struct clk_regmap {
struct clk_hw hw;
struct regmap *regmap;
unsigned int enable_reg;
unsigned int enable_mask;
bool enable_is_inverted;
};
static inline struct clk_regmap *to_clk_regmap(struct clk_hw *hw)
{
return container_of(hw, struct clk_regmap, hw);
}
int clk_is_enabled_regmap(struct clk_hw *hw);
int clk_enable_regmap(struct clk_hw *hw);
void clk_disable_regmap(struct clk_hw *hw);
int devm_clk_register_regmap(struct device *dev, struct clk_regmap *rclk);
#endif