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authorChen-Yu Tsai <wens@csie.org>2019-05-03 14:21:08 +0300
committerChen-Yu Tsai <wens@csie.org>2019-06-22 05:13:16 +0300
commit4b751ffae7a7659d665499ee9ed6fd7a144e575a (patch)
tree205ca384d01ec62e6d99aaa4faf967510e9b2b46 /drivers/clk/sunxi-ng
parent22ce173f76f47b087d9978473db22d5d9ce79f71 (diff)
downloadlinux-4b751ffae7a7659d665499ee9ed6fd7a144e575a.tar.xz
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.h53
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);