// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2018-2021, The Linux Foundation. All rights reserved. */ #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <soc/qcom/cmd-db.h> #include <soc/qcom/rpmh.h> #include <soc/qcom/tcs.h> #include <dt-bindings/clock/qcom,rpmh.h> #define CLK_RPMH_ARC_EN_OFFSET … #define CLK_RPMH_VRM_EN_OFFSET … /** * struct bcm_db - Auxiliary data pertaining to each Bus Clock Manager(BCM) * @unit: divisor used to convert Hz value to an RPMh msg * @width: multiplier used to convert Hz value to an RPMh msg * @vcd: virtual clock domain that this bcm belongs to * @reserved: reserved to pad the struct */ struct bcm_db { … }; /** * struct clk_rpmh - individual rpmh clock data structure * @hw: handle between common and hardware-specific interfaces * @res_name: resource name for the rpmh clock * @div: clock divider to compute the clock rate * @res_addr: base address of the rpmh resource within the RPMh * @res_on_val: rpmh clock enable value * @state: rpmh clock requested state * @aggr_state: rpmh clock aggregated state * @last_sent_aggr_state: rpmh clock last aggr state sent to RPMh * @valid_state_mask: mask to determine the state of the rpmh clock * @unit: divisor to convert rate to rpmh msg in magnitudes of Khz * @dev: device to which it is attached * @peer: pointer to the clock rpmh sibling */ struct clk_rpmh { … }; struct clk_rpmh_desc { … }; static DEFINE_MUTEX(rpmh_clk_lock); #define __DEFINE_CLK_RPMH(_name, _clk_name, _res_name, \ _res_en_offset, _res_on, _div) … #define DEFINE_CLK_RPMH_ARC(_name, _res_name, _res_on, _div) … #define DEFINE_CLK_RPMH_VRM(_name, _suffix, _res_name, _div) … #define DEFINE_CLK_RPMH_BCM(_name, _res_name) … static inline struct clk_rpmh *to_clk_rpmh(struct clk_hw *_hw) { … } static inline bool has_state_changed(struct clk_rpmh *c, u32 state) { … } static int clk_rpmh_send(struct clk_rpmh *c, enum rpmh_state state, struct tcs_cmd *cmd, bool wait) { … } static int clk_rpmh_send_aggregate_command(struct clk_rpmh *c) { … } /* * Update state and aggregate state values based on enable value. */ static int clk_rpmh_aggregate_state_send_command(struct clk_rpmh *c, bool enable) { … } static int clk_rpmh_prepare(struct clk_hw *hw) { … } static void clk_rpmh_unprepare(struct clk_hw *hw) { struct clk_rpmh *c = to_clk_rpmh(hw); mutex_lock(&rpmh_clk_lock); clk_rpmh_aggregate_state_send_command(c, false); mutex_unlock(&rpmh_clk_lock); }; static unsigned long clk_rpmh_recalc_rate(struct clk_hw *hw, unsigned long prate) { … } static const struct clk_ops clk_rpmh_ops = …; static int clk_rpmh_bcm_send_cmd(struct clk_rpmh *c, bool enable) { … } static int clk_rpmh_bcm_prepare(struct clk_hw *hw) { … } static void clk_rpmh_bcm_unprepare(struct clk_hw *hw) { … } static int clk_rpmh_bcm_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { … } static long clk_rpmh_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { … } static unsigned long clk_rpmh_bcm_recalc_rate(struct clk_hw *hw, unsigned long prate) { … } static const struct clk_ops clk_rpmh_bcm_ops = …; /* Resource name must match resource id present in cmd-db */ DEFINE_CLK_RPMH_ARC(…); DEFINE_CLK_RPMH_ARC(…); DEFINE_CLK_RPMH_ARC(…); DEFINE_CLK_RPMH_ARC(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_VRM(…); DEFINE_CLK_RPMH_BCM(ce, "CE0"); DEFINE_CLK_RPMH_BCM(hwkm, "HK0"); DEFINE_CLK_RPMH_BCM(ipa, "IP0"); DEFINE_CLK_RPMH_BCM(pka, "PKA0"); DEFINE_CLK_RPMH_BCM(qpic_clk, "QP0"); static struct clk_hw *sdm845_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sdm845 = …; static struct clk_hw *sa8775p_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sa8775p = …; static struct clk_hw *sdm670_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sdm670 = …; static struct clk_hw *sdx55_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sdx55 = …; static struct clk_hw *sm8150_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8150 = …; static struct clk_hw *sc7180_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sc7180 = …; static struct clk_hw *sc8180x_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sc8180x = …; static struct clk_hw *sm8250_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8250 = …; static struct clk_hw *sm8350_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8350 = …; static struct clk_hw *sc8280xp_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sc8280xp = …; static struct clk_hw *sm8450_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8450 = …; static struct clk_hw *sm8550_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8550 = …; static struct clk_hw *sm8650_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm8650 = …; static struct clk_hw *sc7280_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sc7280 = …; static struct clk_hw *sm6350_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm6350 = …; static struct clk_hw *sdx65_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sdx65 = …; static struct clk_hw *qdu1000_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_qdu1000 = …; static struct clk_hw *sdx75_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sdx75 = …; static struct clk_hw *sm4450_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_sm4450 = …; static struct clk_hw *x1e80100_rpmh_clocks[] = …; static const struct clk_rpmh_desc clk_rpmh_x1e80100 = …; static struct clk_hw *of_clk_rpmh_hw_get(struct of_phandle_args *clkspec, void *data) { … } static int clk_rpmh_probe(struct platform_device *pdev) { … } static const struct of_device_id clk_rpmh_match_table[] = …; MODULE_DEVICE_TABLE(of, clk_rpmh_match_table); static struct platform_driver clk_rpmh_driver = …; static int __init clk_rpmh_init(void) { … } core_initcall(clk_rpmh_init); static void __exit clk_rpmh_exit(void) { … } module_exit(clk_rpmh_exit); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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