Lines Matching refs:div
62 unsigned long div) in ccu_div_lock_delay_ns() argument
64 u64 ns = 4ULL * (div ?: 1) * NSEC_PER_SEC; in ccu_div_lock_delay_ns()
72 unsigned long div) in ccu_div_calc_freq() argument
74 return ref_clk / (div ?: 1); in ccu_div_calc_freq()
77 static int ccu_div_var_update_clkdiv(struct ccu_div *div, in ccu_div_var_update_clkdiv() argument
88 if (div->features & CCU_DIV_LOCK_SHIFTED) in ccu_div_var_update_clkdiv()
93 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_var_update_clkdiv()
103 regmap_read(div->sys_regs, div->reg_ctl, &val); in ccu_div_var_update_clkdiv()
114 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_enable() local
124 regmap_read(div->sys_regs, div->reg_ctl, &val); in ccu_div_var_enable()
128 spin_lock_irqsave(&div->lock, flags); in ccu_div_var_enable()
129 ret = ccu_div_var_update_clkdiv(div, clk_hw_get_rate(parent_hw), in ccu_div_var_enable()
130 ccu_div_get(div->mask, val)); in ccu_div_var_enable()
132 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_var_enable()
134 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_var_enable()
143 struct ccu_div *div = to_ccu_div(hw); in ccu_div_gate_enable() local
146 spin_lock_irqsave(&div->lock, flags); in ccu_div_gate_enable()
147 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_gate_enable()
149 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_gate_enable()
156 struct ccu_div *div = to_ccu_div(hw); in ccu_div_gate_disable() local
159 spin_lock_irqsave(&div->lock, flags); in ccu_div_gate_disable()
160 regmap_update_bits(div->sys_regs, div->reg_ctl, CCU_DIV_CTL_EN, 0); in ccu_div_gate_disable()
161 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_gate_disable()
166 struct ccu_div *div = to_ccu_div(hw); in ccu_div_gate_is_enabled() local
169 regmap_read(div->sys_regs, div->reg_ctl, &val); in ccu_div_gate_is_enabled()
176 struct ccu_div *div = to_ccu_div(hw); in ccu_div_buf_enable() local
179 spin_lock_irqsave(&div->lock, flags); in ccu_div_buf_enable()
180 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_buf_enable()
182 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_buf_enable()
189 struct ccu_div *div = to_ccu_div(hw); in ccu_div_buf_disable() local
192 spin_lock_irqsave(&div->lock, flags); in ccu_div_buf_disable()
193 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_buf_disable()
195 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_buf_disable()
200 struct ccu_div *div = to_ccu_div(hw); in ccu_div_buf_is_enabled() local
203 regmap_read(div->sys_regs, div->reg_ctl, &val); in ccu_div_buf_is_enabled()
211 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_recalc_rate() local
215 regmap_read(div->sys_regs, div->reg_ctl, &val); in ccu_div_var_recalc_rate()
216 divider = ccu_div_get(div->mask, val); in ccu_div_var_recalc_rate()
235 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_round_rate() local
238 divider = ccu_div_var_calc_divider(rate, *parent_rate, div->mask); in ccu_div_var_round_rate()
251 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_set_rate_slow() local
256 divider = ccu_div_var_calc_divider(rate, parent_rate, div->mask); in ccu_div_var_set_rate_slow()
257 if (divider == 1 && div->features & CCU_DIV_SKIP_ONE) { in ccu_div_var_set_rate_slow()
259 } else if (div->features & CCU_DIV_SKIP_ONE_TO_THREE) { in ccu_div_var_set_rate_slow()
266 val = ccu_div_prep(div->mask, divider); in ccu_div_var_set_rate_slow()
268 spin_lock_irqsave(&div->lock, flags); in ccu_div_var_set_rate_slow()
269 regmap_update_bits(div->sys_regs, div->reg_ctl, div->mask, val); in ccu_div_var_set_rate_slow()
270 ret = ccu_div_var_update_clkdiv(div, parent_rate, divider); in ccu_div_var_set_rate_slow()
271 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_var_set_rate_slow()
285 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_set_rate_fast() local
289 divider = ccu_div_var_calc_divider(rate, parent_rate, div->mask); in ccu_div_var_set_rate_fast()
290 val = ccu_div_prep(div->mask, divider); in ccu_div_var_set_rate_fast()
296 spin_lock_irqsave(&div->lock, flags); in ccu_div_var_set_rate_fast()
297 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_var_set_rate_fast()
298 div->mask | CCU_DIV_CTL_EN, val); in ccu_div_var_set_rate_fast()
299 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_var_set_rate_fast()
307 struct ccu_div *div = to_ccu_div(hw); in ccu_div_fixed_recalc_rate() local
309 return ccu_div_calc_freq(parent_rate, div->divider); in ccu_div_fixed_recalc_rate()
315 struct ccu_div *div = to_ccu_div(hw); in ccu_div_fixed_round_rate() local
317 return ccu_div_calc_freq(*parent_rate, div->divider); in ccu_div_fixed_round_rate()
326 int ccu_div_reset_domain(struct ccu_div *div) in ccu_div_reset_domain() argument
330 if (!div || !(div->features & CCU_DIV_RESET_DOMAIN)) in ccu_div_reset_domain()
333 spin_lock_irqsave(&div->lock, flags); in ccu_div_reset_domain()
334 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_reset_domain()
336 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_reset_domain()
347 struct ccu_div *div; member
378 struct ccu_div *div = bit->div; in ccu_div_dbgfs_bit_set() local
381 spin_lock_irqsave(&div->lock, flags); in ccu_div_dbgfs_bit_set()
382 regmap_update_bits(div->sys_regs, div->reg_ctl, in ccu_div_dbgfs_bit_set()
384 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_dbgfs_bit_set()
391 struct ccu_div *div = priv; in ccu_div_dbgfs_var_clkdiv_set() local
396 CCU_DIV_CLKDIV_MAX(div->mask)); in ccu_div_dbgfs_var_clkdiv_set()
397 data = ccu_div_prep(div->mask, val); in ccu_div_dbgfs_var_clkdiv_set()
399 spin_lock_irqsave(&div->lock, flags); in ccu_div_dbgfs_var_clkdiv_set()
400 regmap_update_bits(div->sys_regs, div->reg_ctl, div->mask, data); in ccu_div_dbgfs_var_clkdiv_set()
401 spin_unlock_irqrestore(&div->lock, flags); in ccu_div_dbgfs_var_clkdiv_set()
419 struct ccu_div *div = bit->div; in ccu_div_dbgfs_bit_get() local
422 regmap_read(div->sys_regs, div->reg_ctl, &data); in ccu_div_dbgfs_bit_get()
432 struct ccu_div *div = priv; in ccu_div_dbgfs_var_clkdiv_get() local
435 regmap_read(div->sys_regs, div->reg_ctl, &data); in ccu_div_dbgfs_var_clkdiv_get()
436 *val = ccu_div_get(div->mask, data); in ccu_div_dbgfs_var_clkdiv_get()
445 struct ccu_div *div = priv; in ccu_div_dbgfs_fixed_clkdiv_get() local
447 *val = div->divider; in ccu_div_dbgfs_fixed_clkdiv_get()
456 struct ccu_div *div = to_ccu_div(hw); in ccu_div_var_debug_init() local
461 num += !!(div->flags & CLK_SET_RATE_GATE) + in ccu_div_var_debug_init()
462 !!(div->features & CCU_DIV_RESET_DOMAIN); in ccu_div_var_debug_init()
470 if (!(div->flags & CLK_SET_RATE_GATE) && in ccu_div_var_debug_init()
475 if (!(div->features & CCU_DIV_RESET_DOMAIN) && in ccu_div_var_debug_init()
484 bits[didx].div = div; in ccu_div_var_debug_init()
486 if (div->features & CCU_DIV_LOCK_SHIFTED && in ccu_div_var_debug_init()
498 div, &ccu_div_dbgfs_var_clkdiv_fops); in ccu_div_var_debug_init()
503 struct ccu_div *div = to_ccu_div(hw); in ccu_div_gate_debug_init() local
511 bit->div = div; in ccu_div_gate_debug_init()
515 debugfs_create_file_unsafe("div_clkdiv", 0400, dentry, div, in ccu_div_gate_debug_init()
521 struct ccu_div *div = to_ccu_div(hw); in ccu_div_buf_debug_init() local
529 bit->div = div; in ccu_div_buf_debug_init()
536 struct ccu_div *div = to_ccu_div(hw); in ccu_div_fixed_debug_init() local
538 debugfs_create_file_unsafe("div_clkdiv", 0400, dentry, div, in ccu_div_fixed_debug_init()
596 struct ccu_div *div; in ccu_div_hw_register() local
602 div = kzalloc(sizeof(*div), GFP_KERNEL); in ccu_div_hw_register()
603 if (!div) in ccu_div_hw_register()
611 div->hw.init = &hw_init; in ccu_div_hw_register()
612 div->id = div_init->id; in ccu_div_hw_register()
613 div->reg_ctl = div_init->base + CCU_DIV_CTL; in ccu_div_hw_register()
614 div->sys_regs = div_init->sys_regs; in ccu_div_hw_register()
615 div->flags = div_init->flags; in ccu_div_hw_register()
616 div->features = div_init->features; in ccu_div_hw_register()
617 spin_lock_init(&div->lock); in ccu_div_hw_register()
627 div->mask = CCU_DIV_CTL_CLKDIV_MASK(div_init->width); in ccu_div_hw_register()
630 div->divider = div_init->divider; in ccu_div_hw_register()
635 div->divider = div_init->divider; in ccu_div_hw_register()
650 ret = of_clk_hw_register(div_init->np, &div->hw); in ccu_div_hw_register()
654 return div; in ccu_div_hw_register()
657 kfree(div); in ccu_div_hw_register()
662 void ccu_div_hw_unregister(struct ccu_div *div) in ccu_div_hw_unregister() argument
664 clk_hw_unregister(&div->hw); in ccu_div_hw_unregister()
666 kfree(div); in ccu_div_hw_unregister()