^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) // OWL composite clock driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) // Copyright (c) 2014 Actions Semi Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) // Author: David Liu <liuwei@actions-semi.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) // Copyright (c) 2018 Linaro Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) // Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/clk-provider.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "owl-composite.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static u8 owl_comp_get_parent(struct clk_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) return owl_mux_helper_get_parent(&comp->common, &comp->mux_hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int owl_comp_set_parent(struct clk_hw *hw, u8 index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) return owl_mux_helper_set_parent(&comp->common, &comp->mux_hw, index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static void owl_comp_disable(struct clk_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct owl_clk_common *common = &comp->common;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) owl_gate_set(common, &comp->gate_hw, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int owl_comp_enable(struct clk_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct owl_clk_common *common = &comp->common;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) owl_gate_set(common, &comp->gate_hw, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static int owl_comp_is_enabled(struct clk_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct owl_clk_common *common = &comp->common;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return owl_gate_clk_is_enabled(common, &comp->gate_hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static long owl_comp_div_round_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned long *parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) return owl_divider_helper_round_rate(&comp->common, &comp->rate.div_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) rate, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static unsigned long owl_comp_div_recalc_rate(struct clk_hw *hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return owl_divider_helper_recalc_rate(&comp->common, &comp->rate.div_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static int owl_comp_div_set_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return owl_divider_helper_set_rate(&comp->common, &comp->rate.div_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) rate, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static long owl_comp_fact_round_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) unsigned long *parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return owl_factor_helper_round_rate(&comp->common,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) &comp->rate.factor_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) rate, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static unsigned long owl_comp_fact_recalc_rate(struct clk_hw *hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return owl_factor_helper_recalc_rate(&comp->common,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) &comp->rate.factor_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int owl_comp_fact_set_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return owl_factor_helper_set_rate(&comp->common,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) &comp->rate.factor_hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) rate, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static long owl_comp_fix_fact_round_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) unsigned long *parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return comp->fix_fact_ops->round_rate(&fix_fact_hw->hw, rate, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static unsigned long owl_comp_fix_fact_recalc_rate(struct clk_hw *hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct owl_composite *comp = hw_to_owl_comp(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return comp->fix_fact_ops->recalc_rate(&fix_fact_hw->hw, parent_rate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static int owl_comp_fix_fact_set_rate(struct clk_hw *hw, unsigned long rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) unsigned long parent_rate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * We must report success but we can do so unconditionally because
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * owl_comp_fix_fact_round_rate returns values that ensure this call is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * a nop.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) const struct clk_ops owl_comp_div_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* mux_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .get_parent = owl_comp_get_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) .set_parent = owl_comp_set_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* gate_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .disable = owl_comp_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .enable = owl_comp_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .is_enabled = owl_comp_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* div_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .round_rate = owl_comp_div_round_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .recalc_rate = owl_comp_div_recalc_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .set_rate = owl_comp_div_set_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) const struct clk_ops owl_comp_fact_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) /* mux_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .get_parent = owl_comp_get_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .set_parent = owl_comp_set_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) /* gate_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .disable = owl_comp_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .enable = owl_comp_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .is_enabled = owl_comp_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) /* fact_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) .round_rate = owl_comp_fact_round_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .recalc_rate = owl_comp_fact_recalc_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .set_rate = owl_comp_fact_set_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) const struct clk_ops owl_comp_fix_fact_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* gate_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .disable = owl_comp_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .enable = owl_comp_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .is_enabled = owl_comp_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* fix_fact_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .round_rate = owl_comp_fix_fact_round_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .recalc_rate = owl_comp_fix_fact_recalc_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .set_rate = owl_comp_fix_fact_set_rate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) const struct clk_ops owl_comp_pass_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) /* mux_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .get_parent = owl_comp_get_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) .set_parent = owl_comp_set_parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* gate_ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .disable = owl_comp_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .enable = owl_comp_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .is_enabled = owl_comp_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags