diff options
author | Chen-Yu Tsai <wens@csie.org> | 2019-05-03 19:21:08 +0800 |
---|---|---|
committer | Chen-Yu Tsai <wens@csie.org> | 2019-06-22 10:13:16 +0800 |
commit | 4b751ffae7a7659d665499ee9ed6fd7a144e575a (patch) | |
tree | 205ca384d01ec62e6d99aaa4faf967510e9b2b46 /drivers/clk/sunxi-ng | |
parent | 22ce173f76f47b087d9978473db22d5d9ce79f71 (diff) |
clk: sunxi-ng: gate: Add macros for referencing local clock parents
With the new clk parenting code, clk_init_data was expanded to include
.parent_hws, for clk drivers to directly reference parents by clk_hw,
and .parent_data, for clk drivers to specify parents using a combination
of device tree clock-names, pointers to struct clk_hw, device tree clocks,
and/or fallback global clock names.
Add four new macros:
- SUNXI_CCU_GATE_HW, that can take a struct clk_hw pointer, instead
of a string, as its parent.
- SUNXI_CCU_GATE_FW that takes a string to match a clock-names entry
in the device tree to specify the clock parent.
- SUNXI_CCU_GATE_HWS that takes an array of struct clk_hw * as its
parent. This allows the array to be shared with other clk
declarations.
- SUNXI_CCU_GATE_DATA that takes an array of struct clk_parent_data *
as its parent. This allows the array to be shared with other clk
declarations.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Diffstat (limited to 'drivers/clk/sunxi-ng')
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_gate.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_gate.h b/drivers/clk/sunxi-ng/ccu_gate.h index 4466169bd2d7..613ddd03629e 100644 --- a/drivers/clk/sunxi-ng/ccu_gate.h +++ b/drivers/clk/sunxi-ng/ccu_gate.h @@ -36,6 +36,59 @@ struct ccu_gate { } \ } +#define SUNXI_CCU_GATE_HW(_struct, _name, _parent, _reg, _gate, _flags) \ + struct ccu_gate _struct = { \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_HW(_name, \ + _parent, \ + &ccu_gate_ops, \ + _flags), \ + } \ + } + +#define SUNXI_CCU_GATE_FW(_struct, _name, _parent, _reg, _gate, _flags) \ + struct ccu_gate _struct = { \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_FW_NAME(_name, \ + _parent, \ + &ccu_gate_ops, \ + _flags), \ + } \ + } + +/* + * The following two macros allow the re-use of the data structure + * holding the parent info. + */ +#define SUNXI_CCU_GATE_HWS(_struct, _name, _parent, _reg, _gate, _flags) \ + struct ccu_gate _struct = { \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_HWS(_name, \ + _parent, \ + &ccu_gate_ops, \ + _flags), \ + } \ + } + +#define SUNXI_CCU_GATE_DATA(_struct, _name, _data, _reg, _gate, _flags) \ + struct ccu_gate _struct = { \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = \ + CLK_HW_INIT_PARENTS_DATA(_name, \ + _data, \ + &ccu_gate_ops, \ + _flags), \ + } \ + } + static inline struct ccu_gate *hw_to_ccu_gate(struct clk_hw *hw) { struct ccu_common *common = hw_to_ccu_common(hw); |