clk/sunxi-ng/ccu_div.c

19 	struct ccu_div *cd = data;
21 	if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
22 		rate *= cd->fixed_post_div;
24 	rate = divider_round_rate_parent(&cd->common.hw, parent,
26 					 cd->div.table, cd->div.width,
27 					 cd->div.flags);
29 	if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
30 		rate /= cd->fixed_post_div;
37 	struct ccu_div *cd = hw_to_ccu_div(hw);
39 	return ccu_gate_helper_disable(&cd->common, cd->enable);
44 	struct ccu_div *cd = hw_to_ccu_div(hw);
46 	return ccu_gate_helper_enable(&cd->common, cd->enable);
51 	struct ccu_div *cd = hw_to_ccu_div(hw);
53 	return ccu_gate_helper_is_enabled(&cd->common, cd->enable);
59 	struct ccu_div *cd = hw_to_ccu_div(hw);
63 	reg = readl(cd->common.base + cd->common.reg);
64 	val = reg >> cd->div.shift;
65 	val &= (1 << cd->div.width) - 1;
67 	parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
70 	val = divider_recalc_rate(hw, parent_rate, val, cd->div.table,
71 				  cd->div.flags, cd->div.width);
73 	if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
74 		val /= cd->fixed_post_div;
82 	struct ccu_div *cd = hw_to_ccu_div(hw);
84 	return ccu_mux_helper_determine_rate(&cd->common, &cd->mux,
85 					     req, ccu_div_round_rate, cd);
91 	struct ccu_div *cd = hw_to_ccu_div(hw);
96 	parent_rate = ccu_mux_helper_apply_prediv(&cd->common, &cd->mux, -1,
99 	if (cd->common.features & CCU_FEATURE_FIXED_POSTDIV)
100 		rate *= cd->fixed_post_div;
102 	val = divider_get_val(rate, parent_rate, cd->div.table, cd->div.width,
103 			      cd->div.flags);
105 	spin_lock_irqsave(cd->common.lock, flags);
107 	reg = readl(cd->common.base + cd->common.reg);
108 	reg &= ~GENMASK(cd->div.width + cd->div.shift - 1, cd->div.shift);
110 	writel(reg | (val << cd->div.shift),
111 	       cd->common.base + cd->common.reg);
113 	spin_unlock_irqrestore(cd->common.lock, flags);
120 	struct ccu_div *cd = hw_to_ccu_div(hw);
122 	return ccu_mux_helper_get_parent(&cd->common, &cd->mux);
127 	struct ccu_div *cd = hw_to_ccu_div(hw);
129 	return ccu_mux_helper_set_parent(&cd->common, &cd->mux, index);