Re: [PATCH 04/25] clk: meson: a1: add the audio clock controller driver

From: Jan Dakinevich
Date: Tue Mar 26 2024 - 14:46:18 EST

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In reply to: Jerome Brunet: "Re: [PATCH 04/25] clk: meson: a1: add the audio clock controller driver"
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On 3/26/24 18:26, Jerome Brunet wrote:
>
> On Sat 23 Mar 2024 at 21:02, Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx> wrote:
>
>> Jerome, I have reworked my driver reusing axg-audio code as most as I
>> could and now I have one more question. Lets see on this definition from
>> axg-audio:
>>
>> #define AUD_MST_MUX(_name, _reg, _flag) \
>> AUD_MUX(_name##_sel, _reg, 0x7, 24, _flag, \
>> mst_mux_parent_data, 0)
>>
>> #define AUD_MST_MCLK_MUX(_name, _reg) \
>> AUD_MST_MUX(_name, _reg, CLK_MUX_ROUND_CLOSEST)
>>
>> CLK_SET_RATE_PARENT is not set here. But why? It means, that topmost pll
>> clock will not be reconfigured at runtime to satisfy the rate that was
>> requested from axg-tdm.
>>
>
> Yes, that is by design. It is another area where mainline audio differs
> greatly from AML vendor code. The PLLs are expected be to fixed and the
> audio master clock will reparent to the most adequate PLL source
> depending on the use case.
>
> This is how we manage to satisfy all audio interfaces with a very
> limited number of PLLs
>
> On AXG/G12 there is at most 6 concurrent interfaces (3 FRDDR/TODDR) - 8
> on sm1 - and we can satisfy on that with 3 PLLs. That would not be
> possible if interfaces were having their way with the PLLs, reseting it
> everytime a stream is started.
> > The PLL rate should be carefully chosen so it can be derived easily. On
> AXG/G12/SM1 that is:
> * one PLL per rate family, to maximize clock precision
> * x24 x32: to handle different sample sizes
> * x2 until we reach the PLL limits to allow higher rates such as 384kHz
> or even higher
>

Thank you. Now it has become much clearer.

> If you have less PLLs on A1, you'll have to make compromises, like a less
> precise clock to support multiple family with one PLL.
> This is why the PLLs are set for each platform in DT because that choice
> may depend on the platform use case.
>

Unfortunately, on A1 we have only one PLL.

Yes, for us it would be better to have hifi_pll with predefined rate.
For instance it will allow to avoid that ugly workaround in PDM (sysrate
property, etc).

But what whould be preferred for upstream? I can imagine a scenario
where samples with different rate should be played, PDM attached to
fclk_divN and there are no conflicts with TDM. In this case
reconfiguration of hifi_pll on demand could better satisfy somebody's
requirements.

>>
>> On 3/19/24 11:30, Jerome Brunet wrote:
>>>
>>> On Tue 19 Mar 2024 at 04:47, Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx> wrote:
>>>
>>>> Let's start from the end:
>>>>
>>>>> No - Looks to me you just have two clock controllers you are trying
>>>> force into one.
>>>>
>>>>> Again, this shows 2 devices. The one related to your 'map0' should
>>>> request AUD2_CLKID_AUDIOTOP as input and enable it right away.
>>>>
>>>> Most of fishy workarounds that you commented is caused the fact the mmio
>>>> of this clock controller is divided into two parts. Compare it with
>>>> axg-audio driver, things that was part of contigous memory region (like
>>>> pdm) here are moved to second region. Is this enough to make a guess
>>>> that these are two devices?
>>>
>>> I see obsolutely no reason to think it is a single device nor to add all the quirks
>>> you have the way you did. So yes, in that case, 2 zones, 2 devices.
>>>
>>>>
>>>> Concerning AUD2_CLKID_AUDIOTOP clock, as it turned out, it must be
>>>> enabled before enabling of clocks from second region too. That is
>>>> AUD2_CLKID_AUDIOTOP clock feeds both parts of this clock controller.
>>>>
>>>
>>> Yes. I understood the first time around and already commented on that.
>>>
>>>>
>>>> On 3/15/24 12:20, Jerome Brunet wrote:
>>>>>
>>>>> On Fri 15 Mar 2024 at 02:21, Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx> wrote:
>>>>>
>>>>>> This controller provides clocks and reset functionality for audio
>>>>>> peripherals on Amlogic A1 SoC family.
>>>>>>
>>>>>> The driver is almost identical to 'axg-audio', however it would be better
>>>>>> to keep it separate due to following reasons:
>>>>>>
>>>>>> - significant amount of bits has another definition. I will bring there
>>>>>> a mess of new defines with A1_ suffixes.
>>>>>>
>>>>>> - registers of this controller are located in two separate regions. It
>>>>>> will give a lot of complications for 'axg-audio' to support this.
>>>>>>
>>>>>> Signed-off-by: Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx>
>>>>>> ---
>>>>>> drivers/clk/meson/Kconfig | 13 +
>>>>>> drivers/clk/meson/Makefile | 1 +
>>>>>> drivers/clk/meson/a1-audio.c | 556 +++++++++++++++++++++++++++++++++++
>>>>>> drivers/clk/meson/a1-audio.h | 58 ++++
>>>>>> 4 files changed, 628 insertions(+)
>>>>>> create mode 100644 drivers/clk/meson/a1-audio.c
>>>>>> create mode 100644 drivers/clk/meson/a1-audio.h
>>>>>>
>>>>>> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
>>>>>> index d6a2fa5f7e88..80c4a18c83d2 100644
>>>>>> --- a/drivers/clk/meson/Kconfig
>>>>>> +++ b/drivers/clk/meson/Kconfig
>>>>>> @@ -133,6 +133,19 @@ config COMMON_CLK_A1_PERIPHERALS
>>>>>> device, A1 SoC Family. Say Y if you want A1 Peripherals clock
>>>>>> controller to work.
>>>>>>
>>>>>> +config COMMON_CLK_A1_AUDIO
>>>>>> + tristate "Amlogic A1 SoC Audio clock controller support"
>>>>>> + depends on ARM64
>>>>>> + select COMMON_CLK_MESON_REGMAP
>>>>>> + select COMMON_CLK_MESON_CLKC_UTILS
>>>>>> + select COMMON_CLK_MESON_PHASE
>>>>>> + select COMMON_CLK_MESON_SCLK_DIV
>>>>>> + select COMMON_CLK_MESON_AUDIO_RSTC
>>>>>> + help
>>>>>> + Support for the Audio clock controller on Amlogic A113L based
>>>>>> + device, A1 SoC Family. Say Y if you want A1 Audio clock controller
>>>>>> + to work.
>>>>>> +
>>>>>> config COMMON_CLK_G12A
>>>>>> tristate "G12 and SM1 SoC clock controllers support"
>>>>>> depends on ARM64
>>>>>> diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
>>>>>> index 88d94921a4dc..4968fc7ad555 100644
>>>>>> --- a/drivers/clk/meson/Makefile
>>>>>> +++ b/drivers/clk/meson/Makefile
>>>>>> @@ -20,6 +20,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o
>>>>>> obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o
>>>>>> obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o
>>>>>> obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o
>>>>>> +obj-$(CONFIG_COMMON_CLK_A1_AUDIO) += a1-audio.o
>>>>>> obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
>>>>>> obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
>>>>>> obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o
>>>>>> diff --git a/drivers/clk/meson/a1-audio.c b/drivers/clk/meson/a1-audio.c
>>>>>> new file mode 100644
>>>>>> index 000000000000..6039116c93ba
>>>>>> --- /dev/null
>>>>>> +++ b/drivers/clk/meson/a1-audio.c
>>>>>> @@ -0,0 +1,556 @@
>>>>>> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
>>>>>> +/*
>>>>>> + * Copyright (c) 2024, SaluteDevices. All Rights Reserved.
>>>>>> + *
>>>>>> + * Author: Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx>
>>>>>> + */
>>>>>> +
>>>>>> +#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/reset-controller.h>
>>>>>> +#include <linux/slab.h>
>>>>>> +
>>>>>> +#include "meson-clkc-utils.h"
>>>>>> +#include "meson-audio-rstc.h"
>>>>>> +#include "clk-regmap.h"
>>>>>> +#include "clk-phase.h"
>>>>>> +#include "sclk-div.h"
>>>>>> +#include "a1-audio.h"
>>>>>> +
>>>>>> +#define AUDIO_PDATA(_name) \
>>>>>> + ((const struct clk_parent_data[]) { { .hw = &(_name).hw } })
>>>>>
>>>>> Not a fan - yet another level of macro.
>>>>>
>>>>>> +
>>>>>> +#define AUDIO_MUX(_name, _reg, _mask, _shift, _pdata) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct clk_regmap_mux_data){ \
>>>>>> + .offset = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .mask = (_mask), \
>>>>>> + .shift = (_shift), \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &clk_regmap_mux_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = ARRAY_SIZE(_pdata), \
>>>>>> + .flags = CLK_SET_RATE_PARENT, \
>>>>>> + }, \
>>>>>> +}
>>>>>> +
>>>>>> +#define AUDIO_DIV(_name, _reg, _shift, _width, _pdata) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct clk_regmap_div_data){ \
>>>>>> + .offset = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &clk_regmap_divider_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = 1, \
>>>>>> + .flags = CLK_SET_RATE_PARENT, \
>>>>>> + }, \
>>>>>> +}
>>>>>> +
>>>>>> +#define AUDIO_GATE(_name, _reg, _bit, _pdata) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct clk_regmap_gate_data){ \
>>>>>> + .offset = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .bit_idx = (_bit), \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &clk_regmap_gate_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = 1, \
>>>>>> + .flags = CLK_SET_RATE_PARENT, \
>>>>>> + }, \
>>>>>> +}
>>>>>> +
>>>>>> +#define AUDIO_SCLK_DIV(_name, _reg, _div_shift, _div_width, \
>>>>>> + _hi_shift, _hi_width, _pdata, _set_rate_parent) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct meson_sclk_div_data) { \
>>>>>> + .div = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_div_shift), \
>>>>>> + .width = (_div_width), \
>>>>>> + }, \
>>>>>> + .hi = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_hi_shift), \
>>>>>> + .width = (_hi_width), \
>>>>>> + }, \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &meson_sclk_div_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = 1, \
>>>>>> + .flags = (_set_rate_parent) ? CLK_SET_RATE_PARENT : 0, \
>>>>>
>>>>> Does not help readeability. Just pass the flag as axg-audio does.
>>>>>
>>>>>> + }, \
>>>>>> +}
>>>>>> +
>>>>>> +#define AUDIO_TRIPHASE(_name, _reg, _width, _shift0, _shift1, _shift2, \
>>>>>> + _pdata) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct meson_clk_triphase_data) { \
>>>>>> + .ph0 = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift0), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + .ph1 = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift1), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + .ph2 = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift2), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &meson_clk_triphase_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = 1, \
>>>>>> + .flags = CLK_SET_RATE_PARENT | CLK_DUTY_CYCLE_PARENT, \
>>>>>> + }, \
>>>>>> +}
>>>>>> +
>>>>>> +#define AUDIO_SCLK_WS(_name, _reg, _width, _shift_ph, _shift_ws, \
>>>>>> + _pdata) \
>>>>>> +static struct clk_regmap _name = { \
>>>>>> + .map = AUDIO_REG_MAP(_reg), \
>>>>>> + .data = &(struct meson_sclk_ws_inv_data) { \
>>>>>> + .ph = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift_ph), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + .ws = { \
>>>>>> + .reg_off = AUDIO_REG_OFFSET(_reg), \
>>>>>> + .shift = (_shift_ws), \
>>>>>> + .width = (_width), \
>>>>>> + }, \
>>>>>> + }, \
>>>>>> + .hw.init = &(struct clk_init_data) { \
>>>>>> + .name = #_name, \
>>>>>> + .ops = &meson_sclk_ws_inv_ops, \
>>>>>> + .parent_data = (_pdata), \
>>>>>> + .num_parents = 1, \
>>>>>> + .flags = CLK_SET_RATE_PARENT | CLK_DUTY_CYCLE_PARENT, \
>>>>>> + }, \
>>>>>> +}
>>>>>
>>>>> All the above does essentially the same things as the macro of
>>>>> axg-audio, to some minor differences. Yet it is another set to maintain.
>>>>>
>>>>
>>>> Except one thing... Here I keep memory identifier to which this clock
>>>> belongs:
>>>>
>>>> .map = AUDIO_REG_MAP(_reg),
>>>>
>>>> It is workaround, but ->map the only common field in clk_regmap that
>>>> could be used for this purpose.
>>>>
>>>>
>>>>> I'd much prefer if you put the axg-audio macro in a header a re-used
>>>>> those. There would a single set to maintain. You may then specialize the
>>>>> included in the driver C file, to avoid redundant parameters
>>>>>
>>>>> Rework axg-audio to use clk_parent_data if you must, but not in the same
>>>>> series please.
>>>>>
>>>>>> +
>>>>>> +static const struct clk_parent_data a1_pclk_pdata[] = {
>>>>>> + { .fw_name = "pclk", },
>>>>>> +};
>>>>>> +
>>>>>> +AUDIO_GATE(audio_ddr_arb, AUDIO_CLK_GATE_EN0, 0, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_tdmin_a, AUDIO_CLK_GATE_EN0, 1, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_tdmin_b, AUDIO_CLK_GATE_EN0, 2, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_tdmin_lb, AUDIO_CLK_GATE_EN0, 3, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_loopback, AUDIO_CLK_GATE_EN0, 4, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_tdmout_a, AUDIO_CLK_GATE_EN0, 5, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_tdmout_b, AUDIO_CLK_GATE_EN0, 6, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_frddr_a, AUDIO_CLK_GATE_EN0, 7, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_frddr_b, AUDIO_CLK_GATE_EN0, 8, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_toddr_a, AUDIO_CLK_GATE_EN0, 9, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_toddr_b, AUDIO_CLK_GATE_EN0, 10, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_spdifin, AUDIO_CLK_GATE_EN0, 11, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_resample, AUDIO_CLK_GATE_EN0, 12, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_eqdrc, AUDIO_CLK_GATE_EN0, 13, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio_audiolocker, AUDIO_CLK_GATE_EN0, 14, a1_pclk_pdata);
>>>>> This is what I mean by redundant parameter ^
>>>>>
>>>>
>>>> Yep. I could define something like AUDIO_PCLK_GATE().
>>>>
>>>>>> +
>>>>>> +AUDIO_GATE(audio2_ddr_arb, AUDIO2_CLK_GATE_EN0, 0, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio2_pdm, AUDIO2_CLK_GATE_EN0, 1, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio2_tdmin_vad, AUDIO2_CLK_GATE_EN0, 2, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio2_toddr_vad, AUDIO2_CLK_GATE_EN0, 3, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio2_vad, AUDIO2_CLK_GATE_EN0, 4, a1_pclk_pdata);
>>>>>> +AUDIO_GATE(audio2_audiotop, AUDIO2_CLK_GATE_EN0, 7, a1_pclk_pdata);
>>>>>> +
>>>>>> +static const struct clk_parent_data a1_mst_pdata[] = {
>>>>>> + { .fw_name = "dds_in" },
>>>>>> + { .fw_name = "fclk_div2" },
>>>>>> + { .fw_name = "fclk_div3" },
>>>>>> + { .fw_name = "hifi_pll" },
>>>>>> + { .fw_name = "xtal" },
>>>>>> +};
>>>>>> +
>>>>>> +#define AUDIO_MST_MCLK(_name, _reg) \
>>>>>> + AUDIO_MUX(_name##_mux, (_reg), 0x7, 24, a1_mst_pdata); \
>>>>>> + AUDIO_DIV(_name##_div, (_reg), 0, 16, \
>>>>>> + AUDIO_PDATA(_name##_mux)); \
>>>>>> + AUDIO_GATE(_name, (_reg), 31, AUDIO_PDATA(_name##_div))
>>>>>> +
>>>>>> +AUDIO_MST_MCLK(audio_mst_a_mclk, AUDIO_MCLK_A_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio_mst_b_mclk, AUDIO_MCLK_B_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio_mst_c_mclk, AUDIO_MCLK_C_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio_mst_d_mclk, AUDIO_MCLK_D_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio_spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio_eqdrc_clk, AUDIO_CLK_EQDRC_CTRL);
>>>>>> +
>>>>>> +AUDIO_MUX(audio_resample_clk_mux, AUDIO_CLK_RESAMPLE_CTRL, 0xf, 24,
>>>>>> + a1_mst_pdata);
>>>>>> +AUDIO_DIV(audio_resample_clk_div, AUDIO_CLK_RESAMPLE_CTRL, 0, 8,
>>>>>> + AUDIO_PDATA(audio_resample_clk_mux));
>>>>>> +AUDIO_GATE(audio_resample_clk, AUDIO_CLK_RESAMPLE_CTRL, 31,
>>>>>> + AUDIO_PDATA(audio_resample_clk_div));
>>>>>> +
>>>>>> +AUDIO_MUX(audio_locker_in_clk_mux, AUDIO_CLK_LOCKER_CTRL, 0xf, 8,
>>>>>> + a1_mst_pdata);
>>>>>> +AUDIO_DIV(audio_locker_in_clk_div, AUDIO_CLK_LOCKER_CTRL, 0, 8,
>>>>>> + AUDIO_PDATA(audio_locker_in_clk_mux));
>>>>>> +AUDIO_GATE(audio_locker_in_clk, AUDIO_CLK_LOCKER_CTRL, 15,
>>>>>> + AUDIO_PDATA(audio_locker_in_clk_div));
>>>>>> +
>>>>>> +AUDIO_MUX(audio_locker_out_clk_mux, AUDIO_CLK_LOCKER_CTRL, 0xf, 24,
>>>>>> + a1_mst_pdata);
>>>>>> +AUDIO_DIV(audio_locker_out_clk_div, AUDIO_CLK_LOCKER_CTRL, 16, 8,
>>>>>> + AUDIO_PDATA(audio_locker_out_clk_mux));
>>>>>> +AUDIO_GATE(audio_locker_out_clk, AUDIO_CLK_LOCKER_CTRL, 31,
>>>>>> + AUDIO_PDATA(audio_locker_out_clk_div));
>>>>>> +
>>>>>> +AUDIO_MST_MCLK(audio2_vad_mclk, AUDIO2_MCLK_VAD_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio2_vad_clk, AUDIO2_CLK_VAD_CTRL);
>>>>>> +AUDIO_MST_MCLK(audio2_pdm_dclk, AUDIO2_CLK_PDMIN_CTRL0);
>>>>>> +AUDIO_MST_MCLK(audio2_pdm_sysclk, AUDIO2_CLK_PDMIN_CTRL1);
>>>>>> +
>>>>>> +#define AUDIO_MST_SCLK(_name, _reg0, _reg1, _pdata) \
>>>>>> + AUDIO_GATE(_name##_pre_en, (_reg0), 31, (_pdata)); \
>>>>>> + AUDIO_SCLK_DIV(_name##_div, (_reg0), 20, 10, 0, 0, \
>>>>>> + AUDIO_PDATA(_name##_pre_en), true); \
>>>>>> + AUDIO_GATE(_name##_post_en, (_reg0), 30, \
>>>>>> + AUDIO_PDATA(_name##_div)); \
>>>>>> + AUDIO_TRIPHASE(_name, (_reg1), 1, 0, 2, 4, \
>>>>>> + AUDIO_PDATA(_name##_post_en))
>>>>>> +
>>>>>
>>>>> Again, I'm not a fan of this many levels of macro. I can live with it
>>>>> but certainly don't want the burden of reviewing and maintaining for
>>>>> clock driver. AXG / G12 and A1 are obviously closely related, so make it common.
>>>>>
>>>>>> +#define AUDIO_MST_LRCLK(_name, _reg0, _reg1, _pdata) \
>>>>>> + AUDIO_SCLK_DIV(_name##_div, (_reg0), 0, 10, 10, 10, \
>>>>>> + (_pdata), false); \
>>>>>> + AUDIO_TRIPHASE(_name, (_reg1), 1, 1, 3, 5, \
>>>>>> + AUDIO_PDATA(_name##_div))
>>>>>> +
>>>>>> +AUDIO_MST_SCLK(audio_mst_a_sclk, AUDIO_MST_A_SCLK_CTRL0, AUDIO_MST_A_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_a_mclk));
>>>>>> +AUDIO_MST_SCLK(audio_mst_b_sclk, AUDIO_MST_B_SCLK_CTRL0, AUDIO_MST_B_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_b_mclk));
>>>>>> +AUDIO_MST_SCLK(audio_mst_c_sclk, AUDIO_MST_C_SCLK_CTRL0, AUDIO_MST_C_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_c_mclk));
>>>>>> +AUDIO_MST_SCLK(audio_mst_d_sclk, AUDIO_MST_D_SCLK_CTRL0, AUDIO_MST_D_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_d_mclk));
>>>>>> +
>>>>>> +AUDIO_MST_LRCLK(audio_mst_a_lrclk, AUDIO_MST_A_SCLK_CTRL0, AUDIO_MST_A_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_a_sclk_post_en));
>>>>>> +AUDIO_MST_LRCLK(audio_mst_b_lrclk, AUDIO_MST_B_SCLK_CTRL0, AUDIO_MST_B_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_b_sclk_post_en));
>>>>>> +AUDIO_MST_LRCLK(audio_mst_c_lrclk, AUDIO_MST_C_SCLK_CTRL0, AUDIO_MST_C_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_c_sclk_post_en));
>>>>>> +AUDIO_MST_LRCLK(audio_mst_d_lrclk, AUDIO_MST_D_SCLK_CTRL0, AUDIO_MST_D_SCLK_CTRL1,
>>>>>> + AUDIO_PDATA(audio_mst_d_sclk_post_en));
>>>>>> +
>>>>>> +static const struct clk_parent_data a1_mst_sclk_pdata[] = {
>>>>>> + { .hw = &audio_mst_a_sclk.hw },
>>>>>> + { .hw = &audio_mst_b_sclk.hw },
>>>>>> + { .hw = &audio_mst_c_sclk.hw },
>>>>>> + { .hw = &audio_mst_d_sclk.hw },
>>>>>> + { .fw_name = "slv_sclk0" },
>>>>>> + { .fw_name = "slv_sclk1" },
>>>>>> + { .fw_name = "slv_sclk2" },
>>>>>> + { .fw_name = "slv_sclk3" },
>>>>>> + { .fw_name = "slv_sclk4" },
>>>>>> + { .fw_name = "slv_sclk5" },
>>>>>> + { .fw_name = "slv_sclk6" },
>>>>>> + { .fw_name = "slv_sclk7" },
>>>>>> + { .fw_name = "slv_sclk8" },
>>>>>> + { .fw_name = "slv_sclk9" },
>>>>>> +};
>>>>>> +
>>>>>> +static const struct clk_parent_data a1_mst_lrclk_pdata[] = {
>>>>>> + { .hw = &audio_mst_a_lrclk.hw },
>>>>>> + { .hw = &audio_mst_b_lrclk.hw },
>>>>>> + { .hw = &audio_mst_c_lrclk.hw },
>>>>>> + { .hw = &audio_mst_d_lrclk.hw },
>>>>>> + { .fw_name = "slv_lrclk0" },
>>>>>> + { .fw_name = "slv_lrclk1" },
>>>>>> + { .fw_name = "slv_lrclk2" },
>>>>>> + { .fw_name = "slv_lrclk3" },
>>>>>> + { .fw_name = "slv_lrclk4" },
>>>>>> + { .fw_name = "slv_lrclk5" },
>>>>>> + { .fw_name = "slv_lrclk6" },
>>>>>> + { .fw_name = "slv_lrclk7" },
>>>>>> + { .fw_name = "slv_lrclk8" },
>>>>>> + { .fw_name = "slv_lrclk9" },
>>>>>> +};
>>>>>> +
>>>>>> +#define AUDIO_TDM_SCLK(_name, _reg) \
>>>>>> + AUDIO_MUX(_name##_mux, (_reg), 0xf, 24, a1_mst_sclk_pdata); \
>>>>>> + AUDIO_GATE(_name##_pre_en, (_reg), 31, \
>>>>>> + AUDIO_PDATA(_name##_mux)); \
>>>>>> + AUDIO_GATE(_name##_post_en, (_reg), 30, \
>>>>>> + AUDIO_PDATA(_name##_pre_en)); \
>>>>>> + AUDIO_SCLK_WS(_name, (_reg), 1, 29, 28, \
>>>>>> + AUDIO_PDATA(_name##_post_en))
>>>>>> +
>>>>>> +#define AUDIO_TDM_LRCLK(_name, _reg) \
>>>>>> + AUDIO_MUX(_name, (_reg), 0xf, 20, a1_mst_lrclk_pdata)
>>>>>> +
>>>>>> +AUDIO_TDM_SCLK(audio_tdmin_a_sclk, AUDIO_CLK_TDMIN_A_CTRL);
>>>>>> +AUDIO_TDM_SCLK(audio_tdmin_b_sclk, AUDIO_CLK_TDMIN_B_CTRL);
>>>>>> +AUDIO_TDM_SCLK(audio_tdmin_lb_sclk, AUDIO_CLK_TDMIN_LB_CTRL);
>>>>>> +AUDIO_TDM_SCLK(audio_tdmout_a_sclk, AUDIO_CLK_TDMOUT_A_CTRL);
>>>>>> +AUDIO_TDM_SCLK(audio_tdmout_b_sclk, AUDIO_CLK_TDMOUT_B_CTRL);
>>>>>> +
>>>>>> +AUDIO_TDM_LRCLK(audio_tdmin_a_lrclk, AUDIO_CLK_TDMIN_A_CTRL);
>>>>>> +AUDIO_TDM_LRCLK(audio_tdmin_b_lrclk, AUDIO_CLK_TDMIN_B_CTRL);
>>>>>> +AUDIO_TDM_LRCLK(audio_tdmin_lb_lrclk, AUDIO_CLK_TDMIN_LB_CTRL);
>>>>>> +AUDIO_TDM_LRCLK(audio_tdmout_a_lrclk, AUDIO_CLK_TDMOUT_A_CTRL);
>>>>>> +AUDIO_TDM_LRCLK(audio_tdmout_b_lrclk, AUDIO_CLK_TDMOUT_B_CTRL);
>>>>>> +
>>>>>> +static struct clk_hw *a1_audio_hw_clks[] = {
>>>>>> + [AUD_CLKID_DDR_ARB] = &audio_ddr_arb.hw,
>>>>>> + [AUD_CLKID_TDMIN_A] = &audio_tdmin_a.hw,
>>>>>> + [AUD_CLKID_TDMIN_B] = &audio_tdmin_b.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB] = &audio_tdmin_lb.hw,
>>>>>> + [AUD_CLKID_LOOPBACK] = &audio_loopback.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A] = &audio_tdmout_a.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B] = &audio_tdmout_b.hw,
>>>>>> + [AUD_CLKID_FRDDR_A] = &audio_frddr_a.hw,
>>>>>> + [AUD_CLKID_FRDDR_B] = &audio_frddr_b.hw,
>>>>>> + [AUD_CLKID_TODDR_A] = &audio_toddr_a.hw,
>>>>>> + [AUD_CLKID_TODDR_B] = &audio_toddr_b.hw,
>>>>>> + [AUD_CLKID_SPDIFIN] = &audio_spdifin.hw,
>>>>>> + [AUD_CLKID_RESAMPLE] = &audio_resample.hw,
>>>>>> + [AUD_CLKID_EQDRC] = &audio_eqdrc.hw,
>>>>>> + [AUD_CLKID_LOCKER] = &audio_audiolocker.hw,
>>>>>> + [AUD_CLKID_MST_A_MCLK_SEL] = &audio_mst_a_mclk_mux.hw,
>>>>>> + [AUD_CLKID_MST_A_MCLK_DIV] = &audio_mst_a_mclk_div.hw,
>>>>>> + [AUD_CLKID_MST_A_MCLK] = &audio_mst_a_mclk.hw,
>>>>>> + [AUD_CLKID_MST_B_MCLK_SEL] = &audio_mst_b_mclk_mux.hw,
>>>>>> + [AUD_CLKID_MST_B_MCLK_DIV] = &audio_mst_b_mclk_div.hw,
>>>>>> + [AUD_CLKID_MST_B_MCLK] = &audio_mst_b_mclk.hw,
>>>>>> + [AUD_CLKID_MST_C_MCLK_SEL] = &audio_mst_c_mclk_mux.hw,
>>>>>> + [AUD_CLKID_MST_C_MCLK_DIV] = &audio_mst_c_mclk_div.hw,
>>>>>> + [AUD_CLKID_MST_C_MCLK] = &audio_mst_c_mclk.hw,
>>>>>> + [AUD_CLKID_MST_D_MCLK_SEL] = &audio_mst_d_mclk_mux.hw,
>>>>>> + [AUD_CLKID_MST_D_MCLK_DIV] = &audio_mst_d_mclk_div.hw,
>>>>>> + [AUD_CLKID_MST_D_MCLK] = &audio_mst_d_mclk.hw,
>>>>>> + [AUD_CLKID_RESAMPLE_CLK_SEL] = &audio_resample_clk_mux.hw,
>>>>>> + [AUD_CLKID_RESAMPLE_CLK_DIV] = &audio_resample_clk_div.hw,
>>>>>> + [AUD_CLKID_RESAMPLE_CLK] = &audio_resample_clk.hw,
>>>>>> + [AUD_CLKID_LOCKER_IN_CLK_SEL] = &audio_locker_in_clk_mux.hw,
>>>>>> + [AUD_CLKID_LOCKER_IN_CLK_DIV] = &audio_locker_in_clk_div.hw,
>>>>>> + [AUD_CLKID_LOCKER_IN_CLK] = &audio_locker_in_clk.hw,
>>>>>> + [AUD_CLKID_LOCKER_OUT_CLK_SEL] = &audio_locker_out_clk_mux.hw,
>>>>>> + [AUD_CLKID_LOCKER_OUT_CLK_DIV] = &audio_locker_out_clk_div.hw,
>>>>>> + [AUD_CLKID_LOCKER_OUT_CLK] = &audio_locker_out_clk.hw,
>>>>>> + [AUD_CLKID_SPDIFIN_CLK_SEL] = &audio_spdifin_clk_mux.hw,
>>>>>> + [AUD_CLKID_SPDIFIN_CLK_DIV] = &audio_spdifin_clk_div.hw,
>>>>>> + [AUD_CLKID_SPDIFIN_CLK] = &audio_spdifin_clk.hw,
>>>>>> + [AUD_CLKID_EQDRC_CLK_SEL] = &audio_eqdrc_clk_mux.hw,
>>>>>> + [AUD_CLKID_EQDRC_CLK_DIV] = &audio_eqdrc_clk_div.hw,
>>>>>> + [AUD_CLKID_EQDRC_CLK] = &audio_eqdrc_clk.hw,
>>>>>> + [AUD_CLKID_MST_A_SCLK_PRE_EN] = &audio_mst_a_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_MST_A_SCLK_DIV] = &audio_mst_a_sclk_div.hw,
>>>>>> + [AUD_CLKID_MST_A_SCLK_POST_EN] = &audio_mst_a_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_MST_A_SCLK] = &audio_mst_a_sclk.hw,
>>>>>> + [AUD_CLKID_MST_B_SCLK_PRE_EN] = &audio_mst_b_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_MST_B_SCLK_DIV] = &audio_mst_b_sclk_div.hw,
>>>>>> + [AUD_CLKID_MST_B_SCLK_POST_EN] = &audio_mst_b_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_MST_B_SCLK] = &audio_mst_b_sclk.hw,
>>>>>> + [AUD_CLKID_MST_C_SCLK_PRE_EN] = &audio_mst_c_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_MST_C_SCLK_DIV] = &audio_mst_c_sclk_div.hw,
>>>>>> + [AUD_CLKID_MST_C_SCLK_POST_EN] = &audio_mst_c_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_MST_C_SCLK] = &audio_mst_c_sclk.hw,
>>>>>> + [AUD_CLKID_MST_D_SCLK_PRE_EN] = &audio_mst_d_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_MST_D_SCLK_DIV] = &audio_mst_d_sclk_div.hw,
>>>>>> + [AUD_CLKID_MST_D_SCLK_POST_EN] = &audio_mst_d_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_MST_D_SCLK] = &audio_mst_d_sclk.hw,
>>>>>> + [AUD_CLKID_MST_A_LRCLK_DIV] = &audio_mst_a_lrclk_div.hw,
>>>>>> + [AUD_CLKID_MST_A_LRCLK] = &audio_mst_a_lrclk.hw,
>>>>>> + [AUD_CLKID_MST_B_LRCLK_DIV] = &audio_mst_b_lrclk_div.hw,
>>>>>> + [AUD_CLKID_MST_B_LRCLK] = &audio_mst_b_lrclk.hw,
>>>>>> + [AUD_CLKID_MST_C_LRCLK_DIV] = &audio_mst_c_lrclk_div.hw,
>>>>>> + [AUD_CLKID_MST_C_LRCLK] = &audio_mst_c_lrclk.hw,
>>>>>> + [AUD_CLKID_MST_D_LRCLK_DIV] = &audio_mst_d_lrclk_div.hw,
>>>>>> + [AUD_CLKID_MST_D_LRCLK] = &audio_mst_d_lrclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_A_SCLK_SEL] = &audio_tdmin_a_sclk_mux.hw,
>>>>>> + [AUD_CLKID_TDMIN_A_SCLK_PRE_EN] = &audio_tdmin_a_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_A_SCLK_POST_EN] = &audio_tdmin_a_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_A_SCLK] = &audio_tdmin_a_sclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_A_LRCLK] = &audio_tdmin_a_lrclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_B_SCLK_SEL] = &audio_tdmin_b_sclk_mux.hw,
>>>>>> + [AUD_CLKID_TDMIN_B_SCLK_PRE_EN] = &audio_tdmin_b_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_B_SCLK_POST_EN] = &audio_tdmin_b_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_B_SCLK] = &audio_tdmin_b_sclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_B_LRCLK] = &audio_tdmin_b_lrclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB_SCLK_SEL] = &audio_tdmin_lb_sclk_mux.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB_SCLK_PRE_EN] = &audio_tdmin_lb_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB_SCLK_POST_EN] = &audio_tdmin_lb_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB_SCLK] = &audio_tdmin_lb_sclk.hw,
>>>>>> + [AUD_CLKID_TDMIN_LB_LRCLK] = &audio_tdmin_lb_lrclk.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A_SCLK_SEL] = &audio_tdmout_a_sclk_mux.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A_SCLK_PRE_EN] = &audio_tdmout_a_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A_SCLK_POST_EN] = &audio_tdmout_a_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A_SCLK] = &audio_tdmout_a_sclk.hw,
>>>>>> + [AUD_CLKID_TDMOUT_A_LRCLK] = &audio_tdmout_a_lrclk.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B_SCLK_SEL] = &audio_tdmout_b_sclk_mux.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B_SCLK_PRE_EN] = &audio_tdmout_b_sclk_pre_en.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B_SCLK_POST_EN] = &audio_tdmout_b_sclk_post_en.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B_SCLK] = &audio_tdmout_b_sclk.hw,
>>>>>> + [AUD_CLKID_TDMOUT_B_LRCLK] = &audio_tdmout_b_lrclk.hw,
>>>>>> +
>>>>>> + [AUD2_CLKID_DDR_ARB] = &audio2_ddr_arb.hw,
>>>>>> + [AUD2_CLKID_PDM] = &audio2_pdm.hw,
>>>>>> + [AUD2_CLKID_TDMIN_VAD] = &audio2_tdmin_vad.hw,
>>>>>> + [AUD2_CLKID_TODDR_VAD] = &audio2_toddr_vad.hw,
>>>>>> + [AUD2_CLKID_VAD] = &audio2_vad.hw,
>>>>>> + [AUD2_CLKID_AUDIOTOP] = &audio2_audiotop.hw,
>>>>>> + [AUD2_CLKID_VAD_MCLK_SEL] = &audio2_vad_mclk_mux.hw,
>>>>>> + [AUD2_CLKID_VAD_MCLK_DIV] = &audio2_vad_mclk_div.hw,
>>>>>> + [AUD2_CLKID_VAD_MCLK] = &audio2_vad_mclk.hw,
>>>>>> + [AUD2_CLKID_VAD_CLK_SEL] = &audio2_vad_clk_mux.hw,
>>>>>> + [AUD2_CLKID_VAD_CLK_DIV] = &audio2_vad_clk_div.hw,
>>>>>> + [AUD2_CLKID_VAD_CLK] = &audio2_vad_clk.hw,
>>>>>> + [AUD2_CLKID_PDM_DCLK_SEL] = &audio2_pdm_dclk_mux.hw,
>>>>>> + [AUD2_CLKID_PDM_DCLK_DIV] = &audio2_pdm_dclk_div.hw,
>>>>>> + [AUD2_CLKID_PDM_DCLK] = &audio2_pdm_dclk.hw,
>>>>>> + [AUD2_CLKID_PDM_SYSCLK_SEL] = &audio2_pdm_sysclk_mux.hw,
>>>>>> + [AUD2_CLKID_PDM_SYSCLK_DIV] = &audio2_pdm_sysclk_div.hw,
>>>>>> + [AUD2_CLKID_PDM_SYSCLK] = &audio2_pdm_sysclk.hw,
>>>>>> +};
>>>>>> +
>>>>>> +static struct meson_clk_hw_data a1_audio_clks = {
>>>>>> + .hws = a1_audio_hw_clks,
>>>>>> + .num = ARRAY_SIZE(a1_audio_hw_clks),
>>>>>> +};
>>>>>> +
>>>>>> +static struct regmap *a1_audio_map(struct platform_device *pdev,
>>>>>> + unsigned int index)
>>>>>> +{
>>>>>> + char name[32];
>>>>>> + const struct regmap_config cfg = {
>>>>>> + .reg_bits = 32,
>>>>>> + .val_bits = 32,
>>>>>> + .reg_stride = 4,
>>>>>> + .name = name,
>>>>>
>>>>> Not necessary
>>>>>
>>>>
>>>> This implementation uses two regmaps, and this field allow to avoid
>>>> errors like this:
>>>>
>>>> [ 0.145530] debugfs: Directory 'fe050000.audio-clock-controller' with
>>>> parent 'regmap' already present!
>>>>
>>>>>> + };
>>>>>> + void __iomem *base;
>>>>>> +
>>>>>> + base = devm_platform_ioremap_resource(pdev, index);
>>>>>> + if (IS_ERR(base))
>>>>>> + return base;
>>>>>> +
>>>>>> + scnprintf(name, sizeof(name), "%d", index);
>>>>>> + return devm_regmap_init_mmio(&pdev->dev, base, &cfg);
>>>>>> +}
>>>>>
>>>>> That is overengineered. Please keep it simple. Declare the regmap_config
>>>>> as static const global, and do it like axg-audio please.
>>>>>
>>>>
>>>> This only reason why it is not "static const" because I need to set
>>>> unique name for each regmap.
>>>>
>>>>>> +
>>>>>> +static int a1_register_clk(struct platform_device *pdev,
>>>>>> + struct regmap *map0, struct regmap *map1,
>>>>>> + struct clk_hw *hw)
>>>>>> +{
>>>>>> + struct clk_regmap *clk = container_of(hw, struct clk_regmap, hw);
>>>>>> +
>>>>>> + if (!hw)
>>>>>> + return 0;
>>>>>> +
>>>>>> + switch ((unsigned long)clk->map) {
>>>>>> + case AUDIO_RANGE_0:
>>>>>> + clk->map = map0;
>>>>>> + break;
>>>>>> + case AUDIO_RANGE_1:
>>>>>> + clk->map = map1;
>>>>>> + break;
>>>>>
>>>>> ... fishy
>>>>>
>>>>>> + default:
>>>>>> + WARN_ON(1);
>>>>>> + return -EINVAL;
>>>>>> + }
>>>>>> +
>>>>>> + return devm_clk_hw_register(&pdev->dev, hw);
>>>>>> +}
>>>>>> +
>>>>>> +static int a1_audio_clkc_probe(struct platform_device *pdev)
>>>>>> +{
>>>>>> + struct regmap *map0, *map1;
>>>>>> + struct clk *clk;
>>>>>> + unsigned int i;
>>>>>> + int ret;
>>>>>> +
>>>>>> + clk = devm_clk_get_enabled(&pdev->dev, "pclk");
>>>>>> + if (WARN_ON(IS_ERR(clk)))
>>>>>> + return PTR_ERR(clk);
>>>>>> +
>>>>>> + map0 = a1_audio_map(pdev, 0);
>>>>>> + if (IS_ERR(map0))
>>>>>> + return PTR_ERR(map0);
>>>>>> +
>>>>>> + map1 = a1_audio_map(pdev, 1);
>>>>>> + if (IS_ERR(map1))
>>>>>> + return PTR_ERR(map1);
>>>>>
>>>>> No - Looks to me you just have two clock controllers you are trying
>>>>> force into one.
>>>>>
>>>>
>>>> See the begining.
>>>>
>>>>>> +
>>>>>> + /*
>>>>>> + * Register and enable AUD2_CLKID_AUDIOTOP clock first. Unless
>>>>>> + * it is enabled any read/write to 'map0' hangs the CPU.
>>>>>> + */
>>>>>> +
>>>>>> + ret = a1_register_clk(pdev, map0, map1,
>>>>>> + a1_audio_clks.hws[AUD2_CLKID_AUDIOTOP]);
>>>>>> + if (ret)
>>>>>> + return ret;
>>>>>> +
>>>>>> + ret = clk_prepare_enable(a1_audio_clks.hws[AUD2_CLKID_AUDIOTOP]->clk);
>>>>>> + if (ret)
>>>>>> + return ret;
>>>>>
>>>>> Again, this shows 2 devices. The one related to your 'map0' should
>>>>> request AUD2_CLKID_AUDIOTOP as input and enable it right away.
>>>>>
>>>>
>>>> See the begining.
>>>>
>>>>>> +
>>>>>> + for (i = 0; i < a1_audio_clks.num; i++) {
>>>>>> + if (i == AUD2_CLKID_AUDIOTOP)
>>>>>> + continue;
>>>>>> +
>>>>>> + ret = a1_register_clk(pdev, map0, map1, a1_audio_clks.hws[i]);
>>>>>> + if (ret)
>>>>>> + return ret;
>>>>>> + }
>>>>>> +
>>>>>> + ret = devm_of_clk_add_hw_provider(&pdev->dev, meson_clk_hw_get,
>>>>>> + &a1_audio_clks);
>>>>>> + if (ret)
>>>>>> + return ret;
>>>>>> +
>>>>>> + BUILD_BUG_ON((unsigned long)AUDIO_REG_MAP(AUDIO_SW_RESET0) !=
>>>>>> + AUDIO_RANGE_0);
>>>>>
>>>>> Why is that necessary ?
>>>>>
>>>>
>>>> A little paranoia. Here AUDIO_SW_RESET0 is handled as map0's register,
>>>> and I want to assert it.
>>>>
>>>>>> + return meson_audio_rstc_register(&pdev->dev, map0,
>>>>>> + AUDIO_REG_OFFSET(AUDIO_SW_RESET0), 32);
>>>>>> +}
>>>>>> +
>>>>>> +static const struct of_device_id a1_audio_clkc_match_table[] = {
>>>>>> + { .compatible = "amlogic,a1-audio-clkc", },
>>>>>> + {}
>>>>>> +};
>>>>>> +MODULE_DEVICE_TABLE(of, a1_audio_clkc_match_table);
>>>>>> +
>>>>>> +static struct platform_driver a1_audio_clkc_driver = {
>>>>>> + .probe = a1_audio_clkc_probe,
>>>>>> + .driver = {
>>>>>> + .name = "a1-audio-clkc",
>>>>>> + .of_match_table = a1_audio_clkc_match_table,
>>>>>> + },
>>>>>> +};
>>>>>> +module_platform_driver(a1_audio_clkc_driver);
>>>>>> +
>>>>>> +MODULE_DESCRIPTION("Amlogic A1 Audio Clock driver");
>>>>>> +MODULE_AUTHOR("Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx>");
>>>>>> +MODULE_LICENSE("GPL");
>>>>>> diff --git a/drivers/clk/meson/a1-audio.h b/drivers/clk/meson/a1-audio.h
>>>>>> new file mode 100644
>>>>>> index 000000000000..f994e87276cd
>>>>>> --- /dev/null
>>>>>> +++ b/drivers/clk/meson/a1-audio.h
>>>>>> @@ -0,0 +1,58 @@
>>>>>> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
>>>>>> +/*
>>>>>> + * Copyright (c) 2024, SaluteDevices. All Rights Reserved.
>>>>>> + *
>>>>>> + * Author: Jan Dakinevich <jan.dakinevich@xxxxxxxxxxxxxxxxx>
>>>>>> + */
>>>>>> +
>>>>>> +#ifndef __A1_AUDIO_H
>>>>>> +#define __A1_AUDIO_H
>>>>>> +
>>>>>> +#define AUDIO_RANGE_0 0xa
>>>>>> +#define AUDIO_RANGE_1 0xb
>>>>>> +#define AUDIO_RANGE_SHIFT 16
>>>>>> +
>>>>>> +#define AUDIO_REG(_range, _offset) \
>>>>>> + (((_range) << AUDIO_RANGE_SHIFT) + (_offset))
>>>>>> +
>>>>>> +#define AUDIO_REG_OFFSET(_reg) \
>>>>>> + ((_reg) & ((1 << AUDIO_RANGE_SHIFT) - 1))
>>>>>> +
>>>>>> +#define AUDIO_REG_MAP(_reg) \
>>>>>> + ((void *)((_reg) >> AUDIO_RANGE_SHIFT))
>>>>>
>>>>> That is seriouly overengineered.
>>>>> The following are offset. Just write what they are.
>>>>>
>>>>
>>>> This is all in order to keep range's identifier together with offset and
>>>> then use it to store the identifier in clk_regmaps.
>>>>
>>>>> There is not reason to put that into a header. It is only going to be
>>>>> used by a single driver.
>>>>>>> +
>>>>>> +#define AUDIO_CLK_GATE_EN0 AUDIO_REG(AUDIO_RANGE_0, 0x000)
>>>>>> +#define AUDIO_MCLK_A_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x008)
>>>>>> +#define AUDIO_MCLK_B_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x00c)
>>>>>> +#define AUDIO_MCLK_C_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x010)
>>>>>> +#define AUDIO_MCLK_D_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x014)
>>>>>> +#define AUDIO_MCLK_E_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x018)
>>>>>> +#define AUDIO_MCLK_F_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x01c)
>>>>>> +#define AUDIO_SW_RESET0 AUDIO_REG(AUDIO_RANGE_0, 0x028)
>>>>>> +#define AUDIO_MST_A_SCLK_CTRL0 AUDIO_REG(AUDIO_RANGE_0, 0x040)
>>>>>> +#define AUDIO_MST_A_SCLK_CTRL1 AUDIO_REG(AUDIO_RANGE_0, 0x044)
>>>>>> +#define AUDIO_MST_B_SCLK_CTRL0 AUDIO_REG(AUDIO_RANGE_0, 0x048)
>>>>>> +#define AUDIO_MST_B_SCLK_CTRL1 AUDIO_REG(AUDIO_RANGE_0, 0x04c)
>>>>>> +#define AUDIO_MST_C_SCLK_CTRL0 AUDIO_REG(AUDIO_RANGE_0, 0x050)
>>>>>> +#define AUDIO_MST_C_SCLK_CTRL1 AUDIO_REG(AUDIO_RANGE_0, 0x054)
>>>>>> +#define AUDIO_MST_D_SCLK_CTRL0 AUDIO_REG(AUDIO_RANGE_0, 0x058)
>>>>>> +#define AUDIO_MST_D_SCLK_CTRL1 AUDIO_REG(AUDIO_RANGE_0, 0x05c)
>>>>>> +#define AUDIO_CLK_TDMIN_A_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x080)
>>>>>> +#define AUDIO_CLK_TDMIN_B_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x084)
>>>>>> +#define AUDIO_CLK_TDMIN_LB_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x08c)
>>>>>> +#define AUDIO_CLK_TDMOUT_A_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x090)
>>>>>> +#define AUDIO_CLK_TDMOUT_B_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x094)
>>>>>> +#define AUDIO_CLK_SPDIFIN_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x09c)
>>>>>> +#define AUDIO_CLK_RESAMPLE_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x0a4)
>>>>>> +#define AUDIO_CLK_LOCKER_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x0a8)
>>>>>> +#define AUDIO_CLK_EQDRC_CTRL AUDIO_REG(AUDIO_RANGE_0, 0x0c0)
>>>>>> +
>>>>>> +#define AUDIO2_CLK_GATE_EN0 AUDIO_REG(AUDIO_RANGE_1, 0x00c)
>>>>>> +#define AUDIO2_MCLK_VAD_CTRL AUDIO_REG(AUDIO_RANGE_1, 0x040)
>>>>>> +#define AUDIO2_CLK_VAD_CTRL AUDIO_REG(AUDIO_RANGE_1, 0x044)
>>>>>> +#define AUDIO2_CLK_PDMIN_CTRL0 AUDIO_REG(AUDIO_RANGE_1, 0x058)
>>>>>> +#define AUDIO2_CLK_PDMIN_CTRL1 AUDIO_REG(AUDIO_RANGE_1, 0x05c)
>>>>>> +
>>>>>> +#include <dt-bindings/clock/amlogic,a1-audio-clkc.h>
>>>>>> +
>>>>>> +#endif /* __A1_AUDIO_H */
>>>>>
>>>>>
>>>
>>>
>
>

--
Best regards
Jan Dakinevich

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