1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * Maxime Ripard <maxime.ripard@free-electrons.com>
8 #include <linux/clk-provider.h>
40 	spin_lock_irqsave(&tclk->lock, flags);  in tcon_ch1_disable()
41 	reg = readl(tclk->reg);  in tcon_ch1_disable()
43 	writel(reg, tclk->reg);  in tcon_ch1_disable()
44 	spin_unlock_irqrestore(&tclk->lock, flags);  in tcon_ch1_disable()
53 	spin_lock_irqsave(&tclk->lock, flags);  in tcon_ch1_enable()
54 	reg = readl(tclk->reg);  in tcon_ch1_enable()
56 	writel(reg, tclk->reg);  in tcon_ch1_enable()
57 	spin_unlock_irqrestore(&tclk->lock, flags);  in tcon_ch1_enable()
67 	reg = readl(tclk->reg);  in tcon_ch1_is_enabled()
76 	reg = readl(tclk->reg) >> TCON_CH1_SCLK2_MUX_SHIFT;  in tcon_ch1_get_parent()
88 	spin_lock_irqsave(&tclk->lock, flags);  in tcon_ch1_set_parent()
89 	reg = readl(tclk->reg);  in tcon_ch1_set_parent()
92 	writel(reg, tclk->reg);  in tcon_ch1_set_parent()
93 	spin_unlock_irqrestore(&tclk->lock, flags);  in tcon_ch1_set_parent()
119 			    (rate - tmp_rate) < (rate - best_rate)) {  in tcon_ch1_calc_divider()
138 	long best_rate = -EINVAL;  in tcon_ch1_determine_rate()
152 		tmp_rate = tcon_ch1_calc_divider(req->rate, parent_rate,  in tcon_ch1_determine_rate()
156 		    (req->rate - tmp_rate) < (req->rate - best_rate)) {  in tcon_ch1_determine_rate()
158 			req->best_parent_rate = parent_rate;  in tcon_ch1_determine_rate()
159 			req->best_parent_hw = parent;  in tcon_ch1_determine_rate()
166 	req->rate = best_rate;  in tcon_ch1_determine_rate()
176 	reg = readl(tclk->reg);  in tcon_ch1_recalc_rate()
197 	spin_lock_irqsave(&tclk->lock, flags);  in tcon_ch1_set_rate()
198 	reg = readl(tclk->reg);  in tcon_ch1_set_rate()
200 	reg |= (div_m - 1) & TCON_CH1_SCLK2_DIV_MASK;  in tcon_ch1_set_rate()
205 	writel(reg, tclk->reg);  in tcon_ch1_set_rate()
206 	spin_unlock_irqrestore(&tclk->lock, flags);  in tcon_ch1_set_rate()
227 	const char *clk_name = node->name;  in tcon_ch1_setup()
235 	of_property_read_string(node, "clock-output-names", &clk_name);  in tcon_ch1_setup()
259 	tclk->reg = reg;  in tcon_ch1_setup()
260 	tclk->hw.init = &init;  in tcon_ch1_setup()
261 	spin_lock_init(&tclk->lock);  in tcon_ch1_setup()
263 	clk = clk_register(NULL, &tclk->hw);  in tcon_ch1_setup()
287 CLK_OF_DECLARE(tcon_ch1, "allwinner,sun4i-a10-tcon-ch1-clk",