1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * MMP PLL clock rate calculation
8 #include <linux/clk-provider.h>
34 	val = readl_relaxed(pll->enable_reg);  in mmp_clk_pll_is_enabled()
35 	if ((val & pll->enable) == pll->enable)  in mmp_clk_pll_is_enabled()
38 	/* Some PLLs, if not software controlled, output default clock. */  in mmp_clk_pll_is_enabled()
39 	if (pll->default_rate > 0)  in mmp_clk_pll_is_enabled()
53 	val = readl_relaxed(pll->enable_reg);  in mmp_clk_pll_recalc_rate()
54 	if ((val & pll->enable) != pll->enable)  in mmp_clk_pll_recalc_rate()
55 		return pll->default_rate;  in mmp_clk_pll_recalc_rate()
57 	if (pll->reg) {  in mmp_clk_pll_recalc_rate()
58 		val = readl_relaxed(pll->reg);  in mmp_clk_pll_recalc_rate()
59 		fbdiv = (val >> pll->shift) & 0x1ff;  in mmp_clk_pll_recalc_rate()
60 		refdiv = (val >> (pll->shift + 9)) & 0x1f;  in mmp_clk_pll_recalc_rate()
66 	if (pll->postdiv_reg) {  in mmp_clk_pll_recalc_rate()
67 		/* MMP3 clock rate calculation */  in mmp_clk_pll_recalc_rate()
70 		val = readl_relaxed(pll->postdiv_reg);  in mmp_clk_pll_recalc_rate()
71 		postdiv = (val >> pll->postdiv_shift) & 0x7;  in mmp_clk_pll_recalc_rate()
73 		rate = pll->input_rate;  in mmp_clk_pll_recalc_rate()
78 		/* MMP2 clock rate calculation */  in mmp_clk_pll_recalc_rate()
113 		return ERR_PTR(-ENOMEM);  in mmp_clk_register_pll()
121 	pll->default_rate = default_rate;  in mmp_clk_register_pll()
122 	pll->enable_reg = enable_reg;  in mmp_clk_register_pll()
123 	pll->enable = enable;  in mmp_clk_register_pll()
124 	pll->reg = reg;  in mmp_clk_register_pll()
125 	pll->shift = shift;  in mmp_clk_register_pll()
127 	pll->input_rate = input_rate;  in mmp_clk_register_pll()
128 	pll->postdiv_reg = postdiv_reg;  in mmp_clk_register_pll()
129 	pll->postdiv_shift = postdiv_shift;  in mmp_clk_register_pll()
131 	pll->hw.init = &init;  in mmp_clk_register_pll()
133 	clk = clk_register(NULL, &pll->hw);  in mmp_clk_register_pll()
163 			pr_err("%s: failed to register clock %s\n",  in mmp_register_pll_clks()
168 			unit->clk_table[clks[i].id] = clk;  in mmp_register_pll_clks()