Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
clk: gate: Add devm_clk_hw_register_gate()
Add devm_clk_hw_register_gate() - devres-managed version of
clk_hw_register_gate()
Suggested-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20211103085102.1656081-2-horatiu.vultur@microchip.com
authored by
Horatiu Vultur
and committed by
Nicolas Ferre
815f0e73
54104ee0
+58
+35
drivers/clk/clk-gate.c
+35
drivers/clk/clk-gate.c
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*/
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#include <linux/clk-provider.h>
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/io.h>
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kfree(gate);
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}
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EXPORT_SYMBOL_GPL(clk_hw_unregister_gate);
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static void devm_clk_hw_release_gate(struct device *dev, void *res)
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{
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clk_hw_unregister_gate(*(struct clk_hw **)res);
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}
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struct clk_hw *__devm_clk_hw_register_gate(struct device *dev,
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struct device_node *np, const char *name,
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const char *parent_name, const struct clk_hw *parent_hw,
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const struct clk_parent_data *parent_data,
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unsigned long flags,
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void __iomem *reg, u8 bit_idx,
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u8 clk_gate_flags, spinlock_t *lock)
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{
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struct clk_hw **ptr, *hw;
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ptr = devres_alloc(devm_clk_hw_release_gate, sizeof(*ptr), GFP_KERNEL);
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if (!ptr)
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return ERR_PTR(-ENOMEM);
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hw = __clk_hw_register_gate(dev, np, name, parent_name, parent_hw,
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parent_data, flags, reg, bit_idx,
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clk_gate_flags, lock);
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if (!IS_ERR(hw)) {
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*ptr = hw;
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devres_add(dev, ptr);
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} else {
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devres_free(ptr);
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}
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return hw;
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}
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EXPORT_SYMBOL_GPL(__devm_clk_hw_register_gate);
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include/linux/clk-provider.h
+23
include/linux/clk-provider.h
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unsigned long flags,
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void __iomem *reg, u8 bit_idx,
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u8 clk_gate_flags, spinlock_t *lock);
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struct clk_hw *__devm_clk_hw_register_gate(struct device *dev,
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struct device_node *np, const char *name,
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const char *parent_name, const struct clk_hw *parent_hw,
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const struct clk_parent_data *parent_data,
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unsigned long flags,
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void __iomem *reg, u8 bit_idx,
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u8 clk_gate_flags, spinlock_t *lock);
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struct clk *clk_register_gate(struct device *dev, const char *name,
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const char *parent_name, unsigned long flags,
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void __iomem *reg, u8 bit_idx,
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bit_idx, clk_gate_flags, lock) \
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__clk_hw_register_gate((dev), NULL, (name), NULL, NULL, (parent_data), \
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(flags), (reg), (bit_idx), \
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(clk_gate_flags), (lock))
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/**
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* devm_clk_hw_register_gate - register a gate clock with the clock framework
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* @dev: device that is registering this clock
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* @name: name of this clock
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* @parent_name: name of this clock's parent
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* @flags: framework-specific flags for this clock
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* @reg: register address to control gating of this clock
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* @bit_idx: which bit in the register controls gating of this clock
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* @clk_gate_flags: gate-specific flags for this clock
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* @lock: shared register lock for this clock
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*/
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#define devm_clk_hw_register_gate(dev, name, parent_name, flags, reg, bit_idx,\
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clk_gate_flags, lock) \
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__devm_clk_hw_register_gate((dev), NULL, (name), (parent_name), NULL, \
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NULL, (flags), (reg), (bit_idx), \
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(clk_gate_flags), (lock))
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void clk_unregister_gate(struct clk *clk);
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void clk_hw_unregister_gate(struct clk_hw *hw);