1ded879e12
These macros are used by more than one SoC vendor platforms, avoid to have many copies of these code, this patch moves them to the common header file which every clock drivers can access to. Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* Copyright (c) 2016 Maxime Ripard. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _COMMON_H_
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#define _COMMON_H_
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#include <linux/compiler.h>
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#include <linux/clk-provider.h>
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#define CCU_FEATURE_FRACTIONAL BIT(0)
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#define CCU_FEATURE_VARIABLE_PREDIV BIT(1)
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#define CCU_FEATURE_FIXED_PREDIV BIT(2)
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#define CCU_FEATURE_FIXED_POSTDIV BIT(3)
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#define CCU_FEATURE_ALL_PREDIV BIT(4)
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#define CCU_FEATURE_LOCK_REG BIT(5)
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#define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6)
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#define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7)
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/* MMC timing mode switch bit */
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#define CCU_MMC_NEW_TIMING_MODE BIT(30)
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struct device_node;
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struct ccu_common {
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void __iomem *base;
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u16 reg;
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u16 lock_reg;
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u32 prediv;
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unsigned long features;
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spinlock_t *lock;
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struct clk_hw hw;
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};
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static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw)
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{
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return container_of(hw, struct ccu_common, hw);
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}
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struct sunxi_ccu_desc {
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struct ccu_common **ccu_clks;
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unsigned long num_ccu_clks;
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struct clk_hw_onecell_data *hw_clks;
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struct ccu_reset_map *resets;
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unsigned long num_resets;
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};
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void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock);
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struct ccu_pll_nb {
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struct notifier_block clk_nb;
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struct ccu_common *common;
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u32 enable;
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u32 lock;
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};
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#define to_ccu_pll_nb(_nb) container_of(_nb, struct ccu_pll_nb, clk_nb)
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int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb);
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int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,
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const struct sunxi_ccu_desc *desc);
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#endif /* _COMMON_H_ */
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