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linux/drivers/clk/meson/axg-audio.c
Jerome Brunet 1cd5018175 clk: meson: axg: add the audio clock controller driver 
The axg audio clock controller is the clock generation unit for the
amlogic audio subsystem of A113 based SoCs. It may be clocked by 8
different plls provided by the primary clock controller and also by
10 slave bit clocks and 10 slave sample clocks which may be provided
by external components, such as audio codecs, through the SoC pads.

It contains several muxes, dividers and gates which are fed into the
the different devices of the audio subsystem.

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2018-07-09 13:48:26 +02:00

846 lines
28 KiB
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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (c) 2018 BayLibre, SAS.
* Author: Jerome Brunet <jbrunet@baylibre.com>
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/init.h>
#include <linux/of_device.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/slab.h>
#include "clkc-audio.h"
#include "axg-audio.h"
#define AXG_MST_IN_COUNT 8
#define AXG_SLV_SCLK_COUNT 10
#define AXG_SLV_LRCLK_COUNT 10
#define AXG_AUD_GATE(_name, _reg, _bit, _pname, _iflags) \
struct clk_regmap axg_##_name = { \
.data = &(struct clk_regmap_gate_data){ \
.offset = (_reg), \
.bit_idx = (_bit), \
}, \
.hw.init = &(struct clk_init_data) { \
.name = "axg_"#_name, \
.ops = &clk_regmap_gate_ops, \
.parent_names = (const char *[]){ _pname }, \
.num_parents = 1, \
.flags = CLK_DUTY_CYCLE_PARENT | (_iflags), \
}, \
}
#define AXG_AUD_MUX(_name, _reg, _mask, _shift, _dflags, _pnames, _iflags) \
struct clk_regmap axg_##_name = { \
.data = &(struct clk_regmap_mux_data){ \
.offset = (_reg), \
.mask = (_mask), \
.shift = (_shift), \
.flags = (_dflags), \
}, \
.hw.init = &(struct clk_init_data){ \
.name = "axg_"#_name, \
.ops = &clk_regmap_mux_ops, \
.parent_names = (_pnames), \
.num_parents = ARRAY_SIZE(_pnames), \
.flags = CLK_DUTY_CYCLE_PARENT | (_iflags), \
}, \
}
#define AXG_AUD_DIV(_name, _reg, _shift, _width, _dflags, _pname, _iflags) \
struct clk_regmap axg_##_name = { \
.data = &(struct clk_regmap_div_data){ \
.offset = (_reg), \
.shift = (_shift), \
.width = (_width), \
.flags = (_dflags), \
}, \
.hw.init = &(struct clk_init_data){ \
.name = "axg_"#_name, \
.ops = &clk_regmap_divider_ops, \
.parent_names = (const char *[]) { _pname }, \
.num_parents = 1, \
.flags = (_iflags), \
}, \
}
#define AXG_PCLK_GATE(_name, _bit) \
AXG_AUD_GATE(_name, AUDIO_CLK_GATE_EN, _bit, "axg_audio_pclk", 0)
/* Audio peripheral clocks */
static AXG_PCLK_GATE(ddr_arb, 0);
static AXG_PCLK_GATE(pdm, 1);
static AXG_PCLK_GATE(tdmin_a, 2);
static AXG_PCLK_GATE(tdmin_b, 3);
static AXG_PCLK_GATE(tdmin_c, 4);
static AXG_PCLK_GATE(tdmin_lb, 5);
static AXG_PCLK_GATE(tdmout_a, 6);
static AXG_PCLK_GATE(tdmout_b, 7);
static AXG_PCLK_GATE(tdmout_c, 8);
static AXG_PCLK_GATE(frddr_a, 9);
static AXG_PCLK_GATE(frddr_b, 10);
static AXG_PCLK_GATE(frddr_c, 11);
static AXG_PCLK_GATE(toddr_a, 12);
static AXG_PCLK_GATE(toddr_b, 13);
static AXG_PCLK_GATE(toddr_c, 14);
static AXG_PCLK_GATE(loopback, 15);
static AXG_PCLK_GATE(spdifin, 16);
static AXG_PCLK_GATE(spdifout, 17);
static AXG_PCLK_GATE(resample, 18);
static AXG_PCLK_GATE(power_detect, 19);
/* Audio Master Clocks */
static const char * const mst_mux_parent_names[] = {
"axg_mst_in0", "axg_mst_in1", "axg_mst_in2", "axg_mst_in3",
"axg_mst_in4", "axg_mst_in5", "axg_mst_in6", "axg_mst_in7",
};
#define AXG_MST_MCLK_MUX(_name, _reg) \
AXG_AUD_MUX(_name##_sel, _reg, 0x7, 24, CLK_MUX_ROUND_CLOSEST, \
mst_mux_parent_names, CLK_SET_RATE_PARENT)
static AXG_MST_MCLK_MUX(mst_a_mclk, AUDIO_MCLK_A_CTRL);
static AXG_MST_MCLK_MUX(mst_b_mclk, AUDIO_MCLK_B_CTRL);
static AXG_MST_MCLK_MUX(mst_c_mclk, AUDIO_MCLK_C_CTRL);
static AXG_MST_MCLK_MUX(mst_d_mclk, AUDIO_MCLK_D_CTRL);
static AXG_MST_MCLK_MUX(mst_e_mclk, AUDIO_MCLK_E_CTRL);
static AXG_MST_MCLK_MUX(mst_f_mclk, AUDIO_MCLK_F_CTRL);
static AXG_MST_MCLK_MUX(spdifout_clk, AUDIO_CLK_SPDIFOUT_CTRL);
static AXG_MST_MCLK_MUX(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
static AXG_MST_MCLK_MUX(pdm_dclk, AUDIO_CLK_PDMIN_CTRL0);
static AXG_MST_MCLK_MUX(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
#define AXG_MST_MCLK_DIV(_name, _reg) \
AXG_AUD_DIV(_name##_div, _reg, 0, 16, CLK_DIVIDER_ROUND_CLOSEST, \
"axg_"#_name"_sel", CLK_SET_RATE_PARENT) \
static AXG_MST_MCLK_DIV(mst_a_mclk, AUDIO_MCLK_A_CTRL);
static AXG_MST_MCLK_DIV(mst_b_mclk, AUDIO_MCLK_B_CTRL);
static AXG_MST_MCLK_DIV(mst_c_mclk, AUDIO_MCLK_C_CTRL);
static AXG_MST_MCLK_DIV(mst_d_mclk, AUDIO_MCLK_D_CTRL);
static AXG_MST_MCLK_DIV(mst_e_mclk, AUDIO_MCLK_E_CTRL);
static AXG_MST_MCLK_DIV(mst_f_mclk, AUDIO_MCLK_F_CTRL);
static AXG_MST_MCLK_DIV(spdifout_clk, AUDIO_CLK_SPDIFOUT_CTRL);
static AXG_MST_MCLK_DIV(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
static AXG_MST_MCLK_DIV(pdm_dclk, AUDIO_CLK_PDMIN_CTRL0);
static AXG_MST_MCLK_DIV(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
#define AXG_MST_MCLK_GATE(_name, _reg) \
AXG_AUD_GATE(_name, _reg, 31, "axg_"#_name"_div", \
CLK_SET_RATE_PARENT)
static AXG_MST_MCLK_GATE(mst_a_mclk, AUDIO_MCLK_A_CTRL);
static AXG_MST_MCLK_GATE(mst_b_mclk, AUDIO_MCLK_B_CTRL);
static AXG_MST_MCLK_GATE(mst_c_mclk, AUDIO_MCLK_C_CTRL);
static AXG_MST_MCLK_GATE(mst_d_mclk, AUDIO_MCLK_D_CTRL);
static AXG_MST_MCLK_GATE(mst_e_mclk, AUDIO_MCLK_E_CTRL);
static AXG_MST_MCLK_GATE(mst_f_mclk, AUDIO_MCLK_F_CTRL);
static AXG_MST_MCLK_GATE(spdifout_clk, AUDIO_CLK_SPDIFOUT_CTRL);
static AXG_MST_MCLK_GATE(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
static AXG_MST_MCLK_GATE(pdm_dclk, AUDIO_CLK_PDMIN_CTRL0);
static AXG_MST_MCLK_GATE(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
/* Sample Clocks */
#define AXG_MST_SCLK_PRE_EN(_name, _reg) \
AXG_AUD_GATE(mst_##_name##_sclk_pre_en, _reg, 31, \
"axg_mst_"#_name"_mclk", 0)
static AXG_MST_SCLK_PRE_EN(a, AUDIO_MST_A_SCLK_CTRL0);
static AXG_MST_SCLK_PRE_EN(b, AUDIO_MST_B_SCLK_CTRL0);
static AXG_MST_SCLK_PRE_EN(c, AUDIO_MST_C_SCLK_CTRL0);
static AXG_MST_SCLK_PRE_EN(d, AUDIO_MST_D_SCLK_CTRL0);
static AXG_MST_SCLK_PRE_EN(e, AUDIO_MST_E_SCLK_CTRL0);
static AXG_MST_SCLK_PRE_EN(f, AUDIO_MST_F_SCLK_CTRL0);
#define AXG_AUD_SCLK_DIV(_name, _reg, _div_shift, _div_width, \
_hi_shift, _hi_width, _pname, _iflags) \
struct clk_regmap axg_##_name = { \
.data = &(struct meson_sclk_div_data) { \
.div = { \
.reg_off = (_reg), \
.shift = (_div_shift), \
.width = (_div_width), \
}, \
.hi = { \
.reg_off = (_reg), \
.shift = (_hi_shift), \
.width = (_hi_width), \
}, \
}, \
.hw.init = &(struct clk_init_data) { \
.name = "axg_"#_name, \
.ops = &meson_sclk_div_ops, \
.parent_names = (const char *[]) { _pname }, \
.num_parents = 1, \
.flags = (_iflags), \
}, \
}
#define AXG_MST_SCLK_DIV(_name, _reg) \
AXG_AUD_SCLK_DIV(mst_##_name##_sclk_div, _reg, 20, 10, 0, 0, \
"axg_mst_"#_name"_sclk_pre_en", \
CLK_SET_RATE_PARENT)
static AXG_MST_SCLK_DIV(a, AUDIO_MST_A_SCLK_CTRL0);
static AXG_MST_SCLK_DIV(b, AUDIO_MST_B_SCLK_CTRL0);
static AXG_MST_SCLK_DIV(c, AUDIO_MST_C_SCLK_CTRL0);
static AXG_MST_SCLK_DIV(d, AUDIO_MST_D_SCLK_CTRL0);
static AXG_MST_SCLK_DIV(e, AUDIO_MST_E_SCLK_CTRL0);
static AXG_MST_SCLK_DIV(f, AUDIO_MST_F_SCLK_CTRL0);
#define AXG_MST_SCLK_POST_EN(_name, _reg) \
AXG_AUD_GATE(mst_##_name##_sclk_post_en, _reg, 30, \
"axg_mst_"#_name"_sclk_div", CLK_SET_RATE_PARENT)
static AXG_MST_SCLK_POST_EN(a, AUDIO_MST_A_SCLK_CTRL0);
static AXG_MST_SCLK_POST_EN(b, AUDIO_MST_B_SCLK_CTRL0);
static AXG_MST_SCLK_POST_EN(c, AUDIO_MST_C_SCLK_CTRL0);
static AXG_MST_SCLK_POST_EN(d, AUDIO_MST_D_SCLK_CTRL0);
static AXG_MST_SCLK_POST_EN(e, AUDIO_MST_E_SCLK_CTRL0);
static AXG_MST_SCLK_POST_EN(f, AUDIO_MST_F_SCLK_CTRL0);
#define AXG_AUD_TRIPHASE(_name, _reg, _width, _shift0, _shift1, _shift2, \
_pname, _iflags) \
struct clk_regmap axg_##_name = { \
.data = &(struct meson_clk_triphase_data) { \
.ph0 = { \
.reg_off = (_reg), \
.shift = (_shift0), \
.width = (_width), \
}, \
.ph1 = { \
.reg_off = (_reg), \
.shift = (_shift1), \
.width = (_width), \
}, \
.ph2 = { \
.reg_off = (_reg), \
.shift = (_shift2), \
.width = (_width), \
}, \
}, \
.hw.init = &(struct clk_init_data) { \
.name = "axg_"#_name, \
.ops = &meson_clk_triphase_ops, \
.parent_names = (const char *[]) { _pname }, \
.num_parents = 1, \
.flags = CLK_DUTY_CYCLE_PARENT | (_iflags), \
}, \
}
#define AXG_MST_SCLK(_name, _reg) \
AXG_AUD_TRIPHASE(mst_##_name##_sclk, _reg, 1, 0, 2, 4, \
"axg_mst_"#_name"_sclk_post_en", CLK_SET_RATE_PARENT)
static AXG_MST_SCLK(a, AUDIO_MST_A_SCLK_CTRL1);
static AXG_MST_SCLK(b, AUDIO_MST_B_SCLK_CTRL1);
static AXG_MST_SCLK(c, AUDIO_MST_C_SCLK_CTRL1);
static AXG_MST_SCLK(d, AUDIO_MST_D_SCLK_CTRL1);
static AXG_MST_SCLK(e, AUDIO_MST_E_SCLK_CTRL1);
static AXG_MST_SCLK(f, AUDIO_MST_F_SCLK_CTRL1);
#define AXG_MST_LRCLK_DIV(_name, _reg) \
AXG_AUD_SCLK_DIV(mst_##_name##_lrclk_div, _reg, 0, 10, 10, 10, \
"axg_mst_"#_name"_sclk_post_en", 0) \
static AXG_MST_LRCLK_DIV(a, AUDIO_MST_A_SCLK_CTRL0);
static AXG_MST_LRCLK_DIV(b, AUDIO_MST_B_SCLK_CTRL0);
static AXG_MST_LRCLK_DIV(c, AUDIO_MST_C_SCLK_CTRL0);
static AXG_MST_LRCLK_DIV(d, AUDIO_MST_D_SCLK_CTRL0);
static AXG_MST_LRCLK_DIV(e, AUDIO_MST_E_SCLK_CTRL0);
static AXG_MST_LRCLK_DIV(f, AUDIO_MST_F_SCLK_CTRL0);
#define AXG_MST_LRCLK(_name, _reg) \
AXG_AUD_TRIPHASE(mst_##_name##_lrclk, _reg, 1, 1, 3, 5, \
"axg_mst_"#_name"_lrclk_div", CLK_SET_RATE_PARENT)
static AXG_MST_LRCLK(a, AUDIO_MST_A_SCLK_CTRL1);
static AXG_MST_LRCLK(b, AUDIO_MST_B_SCLK_CTRL1);
static AXG_MST_LRCLK(c, AUDIO_MST_C_SCLK_CTRL1);
static AXG_MST_LRCLK(d, AUDIO_MST_D_SCLK_CTRL1);
static AXG_MST_LRCLK(e, AUDIO_MST_E_SCLK_CTRL1);
static AXG_MST_LRCLK(f, AUDIO_MST_F_SCLK_CTRL1);
static const char * const tdm_sclk_parent_names[] = {
"axg_mst_a_sclk", "axg_mst_b_sclk", "axg_mst_c_sclk",
"axg_mst_d_sclk", "axg_mst_e_sclk", "axg_mst_f_sclk",
"axg_slv_sclk0", "axg_slv_sclk1", "axg_slv_sclk2",
"axg_slv_sclk3", "axg_slv_sclk4", "axg_slv_sclk5",
"axg_slv_sclk6", "axg_slv_sclk7", "axg_slv_sclk8",
"axg_slv_sclk9"
};
#define AXG_TDM_SCLK_MUX(_name, _reg) \
AXG_AUD_MUX(tdm##_name##_sclk_sel, _reg, 0xf, 24, \
CLK_MUX_ROUND_CLOSEST, \
tdm_sclk_parent_names, 0)
static AXG_TDM_SCLK_MUX(in_a, AUDIO_CLK_TDMIN_A_CTRL);
static AXG_TDM_SCLK_MUX(in_b, AUDIO_CLK_TDMIN_B_CTRL);
static AXG_TDM_SCLK_MUX(in_c, AUDIO_CLK_TDMIN_C_CTRL);
static AXG_TDM_SCLK_MUX(in_lb, AUDIO_CLK_TDMIN_LB_CTRL);
static AXG_TDM_SCLK_MUX(out_a, AUDIO_CLK_TDMOUT_A_CTRL);
static AXG_TDM_SCLK_MUX(out_b, AUDIO_CLK_TDMOUT_B_CTRL);
static AXG_TDM_SCLK_MUX(out_c, AUDIO_CLK_TDMOUT_C_CTRL);
#define AXG_TDM_SCLK_PRE_EN(_name, _reg) \
AXG_AUD_GATE(tdm##_name##_sclk_pre_en, _reg, 31, \
"axg_tdm"#_name"_sclk_sel", CLK_SET_RATE_PARENT)
static AXG_TDM_SCLK_PRE_EN(in_a, AUDIO_CLK_TDMIN_A_CTRL);
static AXG_TDM_SCLK_PRE_EN(in_b, AUDIO_CLK_TDMIN_B_CTRL);
static AXG_TDM_SCLK_PRE_EN(in_c, AUDIO_CLK_TDMIN_C_CTRL);
static AXG_TDM_SCLK_PRE_EN(in_lb, AUDIO_CLK_TDMIN_LB_CTRL);
static AXG_TDM_SCLK_PRE_EN(out_a, AUDIO_CLK_TDMOUT_A_CTRL);
static AXG_TDM_SCLK_PRE_EN(out_b, AUDIO_CLK_TDMOUT_B_CTRL);
static AXG_TDM_SCLK_PRE_EN(out_c, AUDIO_CLK_TDMOUT_C_CTRL);
#define AXG_TDM_SCLK_POST_EN(_name, _reg) \
AXG_AUD_GATE(tdm##_name##_sclk_post_en, _reg, 30, \
"axg_tdm"#_name"_sclk_pre_en", CLK_SET_RATE_PARENT)
static AXG_TDM_SCLK_POST_EN(in_a, AUDIO_CLK_TDMIN_A_CTRL);
static AXG_TDM_SCLK_POST_EN(in_b, AUDIO_CLK_TDMIN_B_CTRL);
static AXG_TDM_SCLK_POST_EN(in_c, AUDIO_CLK_TDMIN_C_CTRL);
static AXG_TDM_SCLK_POST_EN(in_lb, AUDIO_CLK_TDMIN_LB_CTRL);
static AXG_TDM_SCLK_POST_EN(out_a, AUDIO_CLK_TDMOUT_A_CTRL);
static AXG_TDM_SCLK_POST_EN(out_b, AUDIO_CLK_TDMOUT_B_CTRL);
static AXG_TDM_SCLK_POST_EN(out_c, AUDIO_CLK_TDMOUT_C_CTRL);
#define AXG_TDM_SCLK(_name, _reg) \
struct clk_regmap axg_tdm##_name##_sclk = { \
.data = &(struct meson_clk_phase_data) { \
.ph = { \
.reg_off = (_reg), \
.shift = 29, \
.width = 1, \
}, \
}, \
.hw.init = &(struct clk_init_data) { \
.name = "axg_tdm"#_name"_sclk", \
.ops = &meson_clk_phase_ops, \
.parent_names = (const char *[]) \
{ "axg_tdm"#_name"_sclk_post_en" }, \
.num_parents = 1, \
.flags = CLK_DUTY_CYCLE_PARENT | CLK_SET_RATE_PARENT, \
}, \
}
static AXG_TDM_SCLK(in_a, AUDIO_CLK_TDMIN_A_CTRL);
static AXG_TDM_SCLK(in_b, AUDIO_CLK_TDMIN_B_CTRL);
static AXG_TDM_SCLK(in_c, AUDIO_CLK_TDMIN_C_CTRL);
static AXG_TDM_SCLK(in_lb, AUDIO_CLK_TDMIN_LB_CTRL);
static AXG_TDM_SCLK(out_a, AUDIO_CLK_TDMOUT_A_CTRL);
static AXG_TDM_SCLK(out_b, AUDIO_CLK_TDMOUT_B_CTRL);
static AXG_TDM_SCLK(out_c, AUDIO_CLK_TDMOUT_C_CTRL);
static const char * const tdm_lrclk_parent_names[] = {
"axg_mst_a_lrclk", "axg_mst_b_lrclk", "axg_mst_c_lrclk",
"axg_mst_d_lrclk", "axg_mst_e_lrclk", "axg_mst_f_lrclk",
"axg_slv_lrclk0", "axg_slv_lrclk1", "axg_slv_lrclk2",
"axg_slv_lrclk3", "axg_slv_lrclk4", "axg_slv_lrclk5",
"axg_slv_lrclk6", "axg_slv_lrclk7", "axg_slv_lrclk8",
"axg_slv_lrclk9"
};
#define AXG_TDM_LRLCK(_name, _reg) \
AXG_AUD_MUX(tdm##_name##_lrclk, _reg, 0xf, 20, \
CLK_MUX_ROUND_CLOSEST, \
tdm_lrclk_parent_names, 0)
static AXG_TDM_LRLCK(in_a, AUDIO_CLK_TDMIN_A_CTRL);
static AXG_TDM_LRLCK(in_b, AUDIO_CLK_TDMIN_B_CTRL);
static AXG_TDM_LRLCK(in_c, AUDIO_CLK_TDMIN_C_CTRL);
static AXG_TDM_LRLCK(in_lb, AUDIO_CLK_TDMIN_LB_CTRL);
static AXG_TDM_LRLCK(out_a, AUDIO_CLK_TDMOUT_A_CTRL);
static AXG_TDM_LRLCK(out_b, AUDIO_CLK_TDMOUT_B_CTRL);
static AXG_TDM_LRLCK(out_c, AUDIO_CLK_TDMOUT_C_CTRL);
/*
* Array of all clocks provided by this provider
* The input clocks of the controller will be populated at runtime
*/
static struct clk_hw_onecell_data axg_audio_hw_onecell_data = {
.hws = {
[AUD_CLKID_DDR_ARB] = &axg_ddr_arb.hw,
[AUD_CLKID_PDM] = &axg_pdm.hw,
[AUD_CLKID_TDMIN_A] = &axg_tdmin_a.hw,
[AUD_CLKID_TDMIN_B] = &axg_tdmin_b.hw,
[AUD_CLKID_TDMIN_C] = &axg_tdmin_c.hw,
[AUD_CLKID_TDMIN_LB] = &axg_tdmin_lb.hw,
[AUD_CLKID_TDMOUT_A] = &axg_tdmout_a.hw,
[AUD_CLKID_TDMOUT_B] = &axg_tdmout_b.hw,
[AUD_CLKID_TDMOUT_C] = &axg_tdmout_c.hw,
[AUD_CLKID_FRDDR_A] = &axg_frddr_a.hw,
[AUD_CLKID_FRDDR_B] = &axg_frddr_b.hw,
[AUD_CLKID_FRDDR_C] = &axg_frddr_c.hw,
[AUD_CLKID_TODDR_A] = &axg_toddr_a.hw,
[AUD_CLKID_TODDR_B] = &axg_toddr_b.hw,
[AUD_CLKID_TODDR_C] = &axg_toddr_c.hw,
[AUD_CLKID_LOOPBACK] = &axg_loopback.hw,
[AUD_CLKID_SPDIFIN] = &axg_spdifin.hw,
[AUD_CLKID_SPDIFOUT] = &axg_spdifout.hw,
[AUD_CLKID_RESAMPLE] = &axg_resample.hw,
[AUD_CLKID_POWER_DETECT] = &axg_power_detect.hw,
[AUD_CLKID_MST_A_MCLK_SEL] = &axg_mst_a_mclk_sel.hw,
[AUD_CLKID_MST_B_MCLK_SEL] = &axg_mst_b_mclk_sel.hw,
[AUD_CLKID_MST_C_MCLK_SEL] = &axg_mst_c_mclk_sel.hw,
[AUD_CLKID_MST_D_MCLK_SEL] = &axg_mst_d_mclk_sel.hw,
[AUD_CLKID_MST_E_MCLK_SEL] = &axg_mst_e_mclk_sel.hw,
[AUD_CLKID_MST_F_MCLK_SEL] = &axg_mst_f_mclk_sel.hw,
[AUD_CLKID_MST_A_MCLK_DIV] = &axg_mst_a_mclk_div.hw,
[AUD_CLKID_MST_B_MCLK_DIV] = &axg_mst_b_mclk_div.hw,
[AUD_CLKID_MST_C_MCLK_DIV] = &axg_mst_c_mclk_div.hw,
[AUD_CLKID_MST_D_MCLK_DIV] = &axg_mst_d_mclk_div.hw,
[AUD_CLKID_MST_E_MCLK_DIV] = &axg_mst_e_mclk_div.hw,
[AUD_CLKID_MST_F_MCLK_DIV] = &axg_mst_f_mclk_div.hw,
[AUD_CLKID_MST_A_MCLK] = &axg_mst_a_mclk.hw,
[AUD_CLKID_MST_B_MCLK] = &axg_mst_b_mclk.hw,
[AUD_CLKID_MST_C_MCLK] = &axg_mst_c_mclk.hw,
[AUD_CLKID_MST_D_MCLK] = &axg_mst_d_mclk.hw,
[AUD_CLKID_MST_E_MCLK] = &axg_mst_e_mclk.hw,
[AUD_CLKID_MST_F_MCLK] = &axg_mst_f_mclk.hw,
[AUD_CLKID_SPDIFOUT_CLK_SEL] = &axg_spdifout_clk_sel.hw,
[AUD_CLKID_SPDIFOUT_CLK_DIV] = &axg_spdifout_clk_div.hw,
[AUD_CLKID_SPDIFOUT_CLK] = &axg_spdifout_clk.hw,
[AUD_CLKID_SPDIFIN_CLK_SEL] = &axg_spdifin_clk_sel.hw,
[AUD_CLKID_SPDIFIN_CLK_DIV] = &axg_spdifin_clk_div.hw,
[AUD_CLKID_SPDIFIN_CLK] = &axg_spdifin_clk.hw,
[AUD_CLKID_PDM_DCLK_SEL] = &axg_pdm_dclk_sel.hw,
[AUD_CLKID_PDM_DCLK_DIV] = &axg_pdm_dclk_div.hw,
[AUD_CLKID_PDM_DCLK] = &axg_pdm_dclk.hw,
[AUD_CLKID_PDM_SYSCLK_SEL] = &axg_pdm_sysclk_sel.hw,
[AUD_CLKID_PDM_SYSCLK_DIV] = &axg_pdm_sysclk_div.hw,
[AUD_CLKID_PDM_SYSCLK] = &axg_pdm_sysclk.hw,
[AUD_CLKID_MST_A_SCLK_PRE_EN] = &axg_mst_a_sclk_pre_en.hw,
[AUD_CLKID_MST_B_SCLK_PRE_EN] = &axg_mst_b_sclk_pre_en.hw,
[AUD_CLKID_MST_C_SCLK_PRE_EN] = &axg_mst_c_sclk_pre_en.hw,
[AUD_CLKID_MST_D_SCLK_PRE_EN] = &axg_mst_d_sclk_pre_en.hw,
[AUD_CLKID_MST_E_SCLK_PRE_EN] = &axg_mst_e_sclk_pre_en.hw,
[AUD_CLKID_MST_F_SCLK_PRE_EN] = &axg_mst_f_sclk_pre_en.hw,
[AUD_CLKID_MST_A_SCLK_DIV] = &axg_mst_a_sclk_div.hw,
[AUD_CLKID_MST_B_SCLK_DIV] = &axg_mst_b_sclk_div.hw,
[AUD_CLKID_MST_C_SCLK_DIV] = &axg_mst_c_sclk_div.hw,
[AUD_CLKID_MST_D_SCLK_DIV] = &axg_mst_d_sclk_div.hw,
[AUD_CLKID_MST_E_SCLK_DIV] = &axg_mst_e_sclk_div.hw,
[AUD_CLKID_MST_F_SCLK_DIV] = &axg_mst_f_sclk_div.hw,
[AUD_CLKID_MST_A_SCLK_POST_EN] = &axg_mst_a_sclk_post_en.hw,
[AUD_CLKID_MST_B_SCLK_POST_EN] = &axg_mst_b_sclk_post_en.hw,
[AUD_CLKID_MST_C_SCLK_POST_EN] = &axg_mst_c_sclk_post_en.hw,
[AUD_CLKID_MST_D_SCLK_POST_EN] = &axg_mst_d_sclk_post_en.hw,
[AUD_CLKID_MST_E_SCLK_POST_EN] = &axg_mst_e_sclk_post_en.hw,
[AUD_CLKID_MST_F_SCLK_POST_EN] = &axg_mst_f_sclk_post_en.hw,
[AUD_CLKID_MST_A_SCLK] = &axg_mst_a_sclk.hw,
[AUD_CLKID_MST_B_SCLK] = &axg_mst_b_sclk.hw,
[AUD_CLKID_MST_C_SCLK] = &axg_mst_c_sclk.hw,
[AUD_CLKID_MST_D_SCLK] = &axg_mst_d_sclk.hw,
[AUD_CLKID_MST_E_SCLK] = &axg_mst_e_sclk.hw,
[AUD_CLKID_MST_F_SCLK] = &axg_mst_f_sclk.hw,
[AUD_CLKID_MST_A_LRCLK_DIV] = &axg_mst_a_lrclk_div.hw,
[AUD_CLKID_MST_B_LRCLK_DIV] = &axg_mst_b_lrclk_div.hw,
[AUD_CLKID_MST_C_LRCLK_DIV] = &axg_mst_c_lrclk_div.hw,
[AUD_CLKID_MST_D_LRCLK_DIV] = &axg_mst_d_lrclk_div.hw,
[AUD_CLKID_MST_E_LRCLK_DIV] = &axg_mst_e_lrclk_div.hw,
[AUD_CLKID_MST_F_LRCLK_DIV] = &axg_mst_f_lrclk_div.hw,
[AUD_CLKID_MST_A_LRCLK] = &axg_mst_a_lrclk.hw,
[AUD_CLKID_MST_B_LRCLK] = &axg_mst_b_lrclk.hw,
[AUD_CLKID_MST_C_LRCLK] = &axg_mst_c_lrclk.hw,
[AUD_CLKID_MST_D_LRCLK] = &axg_mst_d_lrclk.hw,
[AUD_CLKID_MST_E_LRCLK] = &axg_mst_e_lrclk.hw,
[AUD_CLKID_MST_F_LRCLK] = &axg_mst_f_lrclk.hw,
[AUD_CLKID_TDMIN_A_SCLK_SEL] = &axg_tdmin_a_sclk_sel.hw,
[AUD_CLKID_TDMIN_B_SCLK_SEL] = &axg_tdmin_b_sclk_sel.hw,
[AUD_CLKID_TDMIN_C_SCLK_SEL] = &axg_tdmin_c_sclk_sel.hw,
[AUD_CLKID_TDMIN_LB_SCLK_SEL] = &axg_tdmin_lb_sclk_sel.hw,
[AUD_CLKID_TDMOUT_A_SCLK_SEL] = &axg_tdmout_a_sclk_sel.hw,
[AUD_CLKID_TDMOUT_B_SCLK_SEL] = &axg_tdmout_b_sclk_sel.hw,
[AUD_CLKID_TDMOUT_C_SCLK_SEL] = &axg_tdmout_c_sclk_sel.hw,
[AUD_CLKID_TDMIN_A_SCLK_PRE_EN] = &axg_tdmin_a_sclk_pre_en.hw,
[AUD_CLKID_TDMIN_B_SCLK_PRE_EN] = &axg_tdmin_b_sclk_pre_en.hw,
[AUD_CLKID_TDMIN_C_SCLK_PRE_EN] = &axg_tdmin_c_sclk_pre_en.hw,
[AUD_CLKID_TDMIN_LB_SCLK_PRE_EN] = &axg_tdmin_lb_sclk_pre_en.hw,
[AUD_CLKID_TDMOUT_A_SCLK_PRE_EN] = &axg_tdmout_a_sclk_pre_en.hw,
[AUD_CLKID_TDMOUT_B_SCLK_PRE_EN] = &axg_tdmout_b_sclk_pre_en.hw,
[AUD_CLKID_TDMOUT_C_SCLK_PRE_EN] = &axg_tdmout_c_sclk_pre_en.hw,
[AUD_CLKID_TDMIN_A_SCLK_POST_EN] = &axg_tdmin_a_sclk_post_en.hw,
[AUD_CLKID_TDMIN_B_SCLK_POST_EN] = &axg_tdmin_b_sclk_post_en.hw,
[AUD_CLKID_TDMIN_C_SCLK_POST_EN] = &axg_tdmin_c_sclk_post_en.hw,
[AUD_CLKID_TDMIN_LB_SCLK_POST_EN] = &axg_tdmin_lb_sclk_post_en.hw,
[AUD_CLKID_TDMOUT_A_SCLK_POST_EN] = &axg_tdmout_a_sclk_post_en.hw,
[AUD_CLKID_TDMOUT_B_SCLK_POST_EN] = &axg_tdmout_b_sclk_post_en.hw,
[AUD_CLKID_TDMOUT_C_SCLK_POST_EN] = &axg_tdmout_c_sclk_post_en.hw,
[AUD_CLKID_TDMIN_A_SCLK] = &axg_tdmin_a_sclk.hw,
[AUD_CLKID_TDMIN_B_SCLK] = &axg_tdmin_b_sclk.hw,
[AUD_CLKID_TDMIN_C_SCLK] = &axg_tdmin_c_sclk.hw,
[AUD_CLKID_TDMIN_LB_SCLK] = &axg_tdmin_lb_sclk.hw,
[AUD_CLKID_TDMOUT_A_SCLK] = &axg_tdmout_a_sclk.hw,
[AUD_CLKID_TDMOUT_B_SCLK] = &axg_tdmout_b_sclk.hw,
[AUD_CLKID_TDMOUT_C_SCLK] = &axg_tdmout_c_sclk.hw,
[AUD_CLKID_TDMIN_A_LRCLK] = &axg_tdmin_a_lrclk.hw,
[AUD_CLKID_TDMIN_B_LRCLK] = &axg_tdmin_b_lrclk.hw,
[AUD_CLKID_TDMIN_C_LRCLK] = &axg_tdmin_c_lrclk.hw,
[AUD_CLKID_TDMIN_LB_LRCLK] = &axg_tdmin_lb_lrclk.hw,
[AUD_CLKID_TDMOUT_A_LRCLK] = &axg_tdmout_a_lrclk.hw,
[AUD_CLKID_TDMOUT_B_LRCLK] = &axg_tdmout_b_lrclk.hw,
[AUD_CLKID_TDMOUT_C_LRCLK] = &axg_tdmout_c_lrclk.hw,
[NR_CLKS] = NULL,
},
.num = NR_CLKS,
};
/* Convenience table to populate regmap in .probe() */
static struct clk_regmap *const axg_audio_clk_regmaps[] = {
&axg_ddr_arb,
&axg_pdm,
&axg_tdmin_a,
&axg_tdmin_b,
&axg_tdmin_c,
&axg_tdmin_lb,
&axg_tdmout_a,
&axg_tdmout_b,
&axg_tdmout_c,
&axg_frddr_a,
&axg_frddr_b,
&axg_frddr_c,
&axg_toddr_a,
&axg_toddr_b,
&axg_toddr_c,
&axg_loopback,
&axg_spdifin,
&axg_spdifout,
&axg_resample,
&axg_power_detect,
&axg_mst_a_mclk_sel,
&axg_mst_b_mclk_sel,
&axg_mst_c_mclk_sel,
&axg_mst_d_mclk_sel,
&axg_mst_e_mclk_sel,
&axg_mst_f_mclk_sel,
&axg_mst_a_mclk_div,
&axg_mst_b_mclk_div,
&axg_mst_c_mclk_div,
&axg_mst_d_mclk_div,
&axg_mst_e_mclk_div,
&axg_mst_f_mclk_div,
&axg_mst_a_mclk,
&axg_mst_b_mclk,
&axg_mst_c_mclk,
&axg_mst_d_mclk,
&axg_mst_e_mclk,
&axg_mst_f_mclk,
&axg_spdifout_clk_sel,
&axg_spdifout_clk_div,
&axg_spdifout_clk,
&axg_spdifin_clk_sel,
&axg_spdifin_clk_div,
&axg_spdifin_clk,
&axg_pdm_dclk_sel,
&axg_pdm_dclk_div,
&axg_pdm_dclk,
&axg_pdm_sysclk_sel,
&axg_pdm_sysclk_div,
&axg_pdm_sysclk,
&axg_mst_a_sclk_pre_en,
&axg_mst_b_sclk_pre_en,
&axg_mst_c_sclk_pre_en,
&axg_mst_d_sclk_pre_en,
&axg_mst_e_sclk_pre_en,
&axg_mst_f_sclk_pre_en,
&axg_mst_a_sclk_div,
&axg_mst_b_sclk_div,
&axg_mst_c_sclk_div,
&axg_mst_d_sclk_div,
&axg_mst_e_sclk_div,
&axg_mst_f_sclk_div,
&axg_mst_a_sclk_post_en,
&axg_mst_b_sclk_post_en,
&axg_mst_c_sclk_post_en,
&axg_mst_d_sclk_post_en,
&axg_mst_e_sclk_post_en,
&axg_mst_f_sclk_post_en,
&axg_mst_a_sclk,
&axg_mst_b_sclk,
&axg_mst_c_sclk,
&axg_mst_d_sclk,
&axg_mst_e_sclk,
&axg_mst_f_sclk,
&axg_mst_a_lrclk_div,
&axg_mst_b_lrclk_div,
&axg_mst_c_lrclk_div,
&axg_mst_d_lrclk_div,
&axg_mst_e_lrclk_div,
&axg_mst_f_lrclk_div,
&axg_mst_a_lrclk,
&axg_mst_b_lrclk,
&axg_mst_c_lrclk,
&axg_mst_d_lrclk,
&axg_mst_e_lrclk,
&axg_mst_f_lrclk,
&axg_tdmin_a_sclk_sel,
&axg_tdmin_b_sclk_sel,
&axg_tdmin_c_sclk_sel,
&axg_tdmin_lb_sclk_sel,
&axg_tdmout_a_sclk_sel,
&axg_tdmout_b_sclk_sel,
&axg_tdmout_c_sclk_sel,
&axg_tdmin_a_sclk_pre_en,
&axg_tdmin_b_sclk_pre_en,
&axg_tdmin_c_sclk_pre_en,
&axg_tdmin_lb_sclk_pre_en,
&axg_tdmout_a_sclk_pre_en,
&axg_tdmout_b_sclk_pre_en,
&axg_tdmout_c_sclk_pre_en,
&axg_tdmin_a_sclk_post_en,
&axg_tdmin_b_sclk_post_en,
&axg_tdmin_c_sclk_post_en,
&axg_tdmin_lb_sclk_post_en,
&axg_tdmout_a_sclk_post_en,
&axg_tdmout_b_sclk_post_en,
&axg_tdmout_c_sclk_post_en,
&axg_tdmin_a_sclk,
&axg_tdmin_b_sclk,
&axg_tdmin_c_sclk,
&axg_tdmin_lb_sclk,
&axg_tdmout_a_sclk,
&axg_tdmout_b_sclk,
&axg_tdmout_c_sclk,
&axg_tdmin_a_lrclk,
&axg_tdmin_b_lrclk,
&axg_tdmin_c_lrclk,
&axg_tdmin_lb_lrclk,
&axg_tdmout_a_lrclk,
&axg_tdmout_b_lrclk,
&axg_tdmout_c_lrclk,
};
static struct clk *devm_clk_get_enable(struct device *dev, char *id)
{
struct clk *clk;
int ret;
clk = devm_clk_get(dev, id);
if (IS_ERR(clk)) {
if (PTR_ERR(clk) != -EPROBE_DEFER)
dev_err(dev, "failed to get %s", id);
return clk;
}
ret = clk_prepare_enable(clk);
if (ret) {
dev_err(dev, "failed to enable %s", id);
return ERR_PTR(ret);
}
ret = devm_add_action_or_reset(dev,
(void(*)(void *))clk_disable_unprepare,
clk);
if (ret) {
dev_err(dev, "failed to add reset action on %s", id);
return ERR_PTR(ret);
}
return clk;
}
static const struct clk_ops axg_clk_no_ops = {};
static struct clk_hw *axg_clk_hw_register_bypass(struct device *dev,
const char *name,
const char *parent_name)
{
struct clk_hw *hw;
struct clk_init_data init;
char *clk_name;
int ret;
hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL);
if (!hw)
return ERR_PTR(-ENOMEM);
clk_name = kasprintf(GFP_KERNEL, "axg_%s", name);
if (!clk_name)
return ERR_PTR(-ENOMEM);
init.name = clk_name;
init.ops = &axg_clk_no_ops;
init.flags = 0;
init.parent_names = parent_name ? &parent_name : NULL;
init.num_parents = parent_name ? 1 : 0;
hw->init = &init;
ret = devm_clk_hw_register(dev, hw);
kfree(clk_name);
return ret ? ERR_PTR(ret) : hw;
}
static int axg_register_clk_hw_input(struct device *dev,
const char *name,
unsigned int clkid)
{
struct clk *parent_clk = devm_clk_get(dev, name);
struct clk_hw *hw = NULL;
if (IS_ERR(parent_clk)) {
int err = PTR_ERR(parent_clk);
/* It is ok if an input clock is missing */
if (err == -ENOENT) {
dev_dbg(dev, "%s not provided", name);
} else {
if (err != -EPROBE_DEFER)
dev_err(dev, "failed to get %s clock", name);
return err;
}
} else {
hw = axg_clk_hw_register_bypass(dev, name,
__clk_get_name(parent_clk));
}
if (IS_ERR(hw)) {
dev_err(dev, "failed to register %s clock", name);
return PTR_ERR(hw);
}
axg_audio_hw_onecell_data.hws[clkid] = hw;
return 0;
}
static int axg_register_clk_hw_inputs(struct device *dev,
const char *basename,
unsigned int count,
unsigned int clkid)
{
char *name;
int i, ret;
for (i = 0; i < count; i++) {
name = kasprintf(GFP_KERNEL, "%s%d", basename, i);
if (!name)
return -ENOMEM;
ret = axg_register_clk_hw_input(dev, name, clkid + i);
kfree(name);
if (ret)
return ret;
}
return 0;
}
static const struct regmap_config axg_audio_regmap_cfg = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.max_register = AUDIO_CLK_PDMIN_CTRL1,
};
static int axg_audio_clkc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct regmap *map;
struct resource *res;
void __iomem *regs;
struct clk *clk;
struct clk_hw *hw;
int ret, i;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
map = devm_regmap_init_mmio(dev, regs, &axg_audio_regmap_cfg);
if (IS_ERR(map)) {
dev_err(dev, "failed to init regmap: %ld\n", PTR_ERR(map));
return PTR_ERR(map);
}
/* Get the mandatory peripheral clock */
clk = devm_clk_get_enable(dev, "pclk");
if (IS_ERR(clk))
return PTR_ERR(clk);
ret = device_reset(dev);
if (ret) {
dev_err(dev, "failed to reset device\n");
return ret;
}
/* Register the peripheral input clock */
hw = axg_clk_hw_register_bypass(dev, "audio_pclk",
__clk_get_name(clk));
if (IS_ERR(hw))
return PTR_ERR(hw);
axg_audio_hw_onecell_data.hws[AUD_CLKID_PCLK] = hw;
/* Register optional input master clocks */
ret = axg_register_clk_hw_inputs(dev, "mst_in",
AXG_MST_IN_COUNT,
AUD_CLKID_MST0);
if (ret)
return ret;
/* Register optional input slave sclks */
ret = axg_register_clk_hw_inputs(dev, "slv_sclk",
AXG_SLV_SCLK_COUNT,
AUD_CLKID_SLV_SCLK0);
if (ret)
return ret;
/* Register optional input slave lrclks */
ret = axg_register_clk_hw_inputs(dev, "slv_lrclk",
AXG_SLV_LRCLK_COUNT,
AUD_CLKID_SLV_LRCLK0);
if (ret)
return ret;
/* Populate regmap for the regmap backed clocks */
for (i = 0; i < ARRAY_SIZE(axg_audio_clk_regmaps); i++)
axg_audio_clk_regmaps[i]->map = map;
/* Take care to skip the registered input clocks */
for (i = AUD_CLKID_DDR_ARB; i < axg_audio_hw_onecell_data.num; i++) {
hw = axg_audio_hw_onecell_data.hws[i];
/* array might be sparse */
if (!hw)
continue;
ret = devm_clk_hw_register(dev, hw);
if (ret) {
dev_err(dev, "failed to register clock %s\n",
hw->init->name);
return ret;
}
}
return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
&axg_audio_hw_onecell_data);
}
static const struct of_device_id clkc_match_table[] = {
{ .compatible = "amlogic,axg-audio-clkc" },
{}
};
MODULE_DEVICE_TABLE(of, clkc_match_table);
static struct platform_driver axg_audio_driver = {
.probe = axg_audio_clkc_probe,
.driver = {
.name = "axg-audio-clkc",
.of_match_table = clkc_match_table,
},
};
module_platform_driver(axg_audio_driver);
MODULE_DESCRIPTION("Amlogic A113x Audio Clock driver");
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
MODULE_LICENSE("GPL v2");
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