mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-30 14:19:16 +00:00
8756b2ecbd
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20230315150745.67084-49-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
486 lines
14 KiB
C
486 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Driver of Inno codec for rk3036 by Rockchip Inc.
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*
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* Author: Rockchip Inc.
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* Author: Zheng ShunQian<zhengsq@rock-chips.com>
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*/
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include <sound/soc-dapm.h>
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#include <sound/soc-dai.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include <linux/clk.h>
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#include <linux/regmap.h>
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#include <linux/device.h>
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include "inno_rk3036.h"
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struct rk3036_codec_priv {
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void __iomem *base;
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struct clk *pclk;
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struct regmap *regmap;
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struct device *dev;
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};
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static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0);
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static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
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uinfo->count = 2;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 1;
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return 0;
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}
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static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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int val, regval;
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regval = snd_soc_component_read(component, INNO_R09);
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val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) &
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INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
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ucontrol->value.integer.value[0] = val;
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val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) &
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INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON;
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ucontrol->value.integer.value[1] = val;
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return 0;
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}
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static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
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int val, ret, regmsk;
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val = (ucontrol->value.integer.value[0] ?
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INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
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INNO_R09_HPL_ANITPOP_SHIFT;
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val |= (ucontrol->value.integer.value[1] ?
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INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) <<
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INNO_R09_HPR_ANITPOP_SHIFT;
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regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT |
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INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT;
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ret = snd_soc_component_update_bits(component, INNO_R09,
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regmsk, val);
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if (ret < 0)
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return ret;
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return 0;
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}
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#define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \
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.put = rk3036_codec_antipop_put, }
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static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = {
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SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08,
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INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB,
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INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv),
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SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT,
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INNO_R06_VOUTR_CZ_SHIFT, 1, 0),
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SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT,
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INNO_R09_HPR_MUTE_SHIFT, 1, 0),
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SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"),
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};
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static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = {
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SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09,
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INNO_R09_DACL_SWITCH_SHIFT, 1, 0),
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};
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static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = {
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SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09,
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INNO_R09_DACR_SWITCH_SHIFT, 1, 0),
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};
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static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = {
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SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05,
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INNO_R05_HPL_WORK_SHIFT, 1, 0),
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};
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static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = {
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SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05,
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INNO_R05_HPR_WORK_SHIFT, 1, 0),
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};
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static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = {
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SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06,
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INNO_R06_DAC_EN_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04,
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INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04,
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INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06,
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INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06,
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INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04,
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INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04,
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INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04,
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INNO_R04_DACL_SW_SHIFT, 0),
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SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04,
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INNO_R04_DACR_SW_SHIFT, 0),
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SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
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rk3036_codec_hpl_mixer_controls,
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ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)),
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SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
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rk3036_codec_hpr_mixer_controls,
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ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)),
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SND_SOC_DAPM_PGA("HP Left Out", INNO_R05,
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INNO_R05_HPL_EN_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_PGA("HP Right Out", INNO_R05,
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INNO_R05_HPR_EN_SHIFT, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0,
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rk3036_codec_hpl_switch_controls,
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ARRAY_SIZE(rk3036_codec_hpl_switch_controls)),
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SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0,
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rk3036_codec_hpr_switch_controls,
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ARRAY_SIZE(rk3036_codec_hpr_switch_controls)),
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SND_SOC_DAPM_OUTPUT("HPL"),
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SND_SOC_DAPM_OUTPUT("HPR"),
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};
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static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = {
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{"DACL VREF", NULL, "DAC PWR"},
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{"DACR VREF", NULL, "DAC PWR"},
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{"DACL HiLo VREF", NULL, "DAC PWR"},
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{"DACR HiLo VREF", NULL, "DAC PWR"},
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{"DACL CLK", NULL, "DAC PWR"},
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{"DACR CLK", NULL, "DAC PWR"},
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{"DACL", NULL, "DACL VREF"},
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{"DACL", NULL, "DACL HiLo VREF"},
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{"DACL", NULL, "DACL CLK"},
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{"DACR", NULL, "DACR VREF"},
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{"DACR", NULL, "DACR HiLo VREF"},
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{"DACR", NULL, "DACR CLK"},
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{"Left Headphone Mixer", "DAC Left Out Switch", "DACL"},
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{"Right Headphone Mixer", "DAC Right Out Switch", "DACR"},
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{"HP Left Out", NULL, "Left Headphone Mixer"},
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{"HP Right Out", NULL, "Right Headphone Mixer"},
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{"HP Left Switch", "HP Left Out Switch", "HP Left Out"},
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{"HP Right Switch", "HP Right Out Switch", "HP Right Out"},
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{"HPL", NULL, "HP Left Switch"},
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{"HPR", NULL, "HP Right Switch"},
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};
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static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_component *component = dai->component;
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unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0;
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dev_dbg(component->dev, "rk3036_codec dai set fmt : %08x\n", fmt);
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switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
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case SND_SOC_DAIFMT_CBC_CFC:
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reg01_val |= INNO_R01_PINDIR_IN_SLAVE |
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INNO_R01_I2SMODE_SLAVE;
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break;
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case SND_SOC_DAIFMT_CBP_CFP:
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reg01_val |= INNO_R01_PINDIR_OUT_MASTER |
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INNO_R01_I2SMODE_MASTER;
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break;
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default:
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dev_err(component->dev, "invalid fmt\n");
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_DSP_A:
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reg02_val |= INNO_R02_DACM_PCM;
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break;
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case SND_SOC_DAIFMT_I2S:
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reg02_val |= INNO_R02_DACM_I2S;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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reg02_val |= INNO_R02_DACM_RJM;
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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reg02_val |= INNO_R02_DACM_LJM;
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break;
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default:
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dev_err(component->dev, "set dai format failed\n");
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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case SND_SOC_DAIFMT_NB_NF:
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reg02_val |= INNO_R02_LRCP_NORMAL;
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reg03_val |= INNO_R03_BCP_NORMAL;
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break;
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case SND_SOC_DAIFMT_IB_IF:
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reg02_val |= INNO_R02_LRCP_REVERSAL;
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reg03_val |= INNO_R03_BCP_REVERSAL;
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break;
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case SND_SOC_DAIFMT_IB_NF:
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reg02_val |= INNO_R02_LRCP_REVERSAL;
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reg03_val |= INNO_R03_BCP_NORMAL;
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break;
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case SND_SOC_DAIFMT_NB_IF:
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reg02_val |= INNO_R02_LRCP_NORMAL;
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reg03_val |= INNO_R03_BCP_REVERSAL;
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break;
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default:
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dev_err(component->dev, "set dai format failed\n");
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return -EINVAL;
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}
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snd_soc_component_update_bits(component, INNO_R01, INNO_R01_I2SMODE_MSK |
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INNO_R01_PINDIR_MSK, reg01_val);
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snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK |
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INNO_R02_DACM_MSK, reg02_val);
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snd_soc_component_update_bits(component, INNO_R03, INNO_R03_BCP_MSK, reg03_val);
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return 0;
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}
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static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_component *component = dai->component;
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unsigned int reg02_val = 0, reg03_val = 0;
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switch (params_format(hw_params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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reg02_val |= INNO_R02_VWL_16BIT;
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break;
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case SNDRV_PCM_FORMAT_S20_3LE:
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reg02_val |= INNO_R02_VWL_20BIT;
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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reg02_val |= INNO_R02_VWL_24BIT;
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break;
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case SNDRV_PCM_FORMAT_S32_LE:
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reg02_val |= INNO_R02_VWL_32BIT;
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break;
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default:
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return -EINVAL;
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}
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reg02_val |= INNO_R02_LRCP_NORMAL;
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reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK;
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snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK |
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INNO_R02_VWL_MSK, reg02_val);
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snd_soc_component_update_bits(component, INNO_R03, INNO_R03_DACR_MSK |
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INNO_R03_FWL_MSK, reg03_val);
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return 0;
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}
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#define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 | \
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SNDRV_PCM_RATE_16000 | \
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SNDRV_PCM_RATE_32000 | \
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SNDRV_PCM_RATE_44100 | \
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SNDRV_PCM_RATE_48000 | \
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SNDRV_PCM_RATE_96000)
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#define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S20_3LE | \
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SNDRV_PCM_FMTBIT_S24_LE | \
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SNDRV_PCM_FMTBIT_S32_LE)
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static const struct snd_soc_dai_ops rk3036_codec_dai_ops = {
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.set_fmt = rk3036_codec_dai_set_fmt,
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.hw_params = rk3036_codec_dai_hw_params,
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};
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static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = {
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{
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.name = "rk3036-codec-dai",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 2,
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.rates = RK3036_CODEC_RATES,
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.formats = RK3036_CODEC_FMTS,
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},
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.ops = &rk3036_codec_dai_ops,
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.symmetric_rate = 1,
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},
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};
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static void rk3036_codec_reset(struct snd_soc_component *component)
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{
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snd_soc_component_write(component, INNO_R00,
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INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET);
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snd_soc_component_write(component, INNO_R00,
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INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK);
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}
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static int rk3036_codec_probe(struct snd_soc_component *component)
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{
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rk3036_codec_reset(component);
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return 0;
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}
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static void rk3036_codec_remove(struct snd_soc_component *component)
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{
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rk3036_codec_reset(component);
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}
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static int rk3036_codec_set_bias_level(struct snd_soc_component *component,
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enum snd_soc_bias_level level)
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{
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switch (level) {
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case SND_SOC_BIAS_STANDBY:
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/* set a big current for capacitor charging. */
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snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR);
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/* start precharge */
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snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_PRECHARGE);
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break;
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case SND_SOC_BIAS_OFF:
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/* set a big current for capacitor discharging. */
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snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR);
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/* start discharge. */
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snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_DISCHARGE);
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break;
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default:
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break;
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}
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return 0;
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}
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static const struct snd_soc_component_driver rk3036_codec_driver = {
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.probe = rk3036_codec_probe,
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.remove = rk3036_codec_remove,
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.set_bias_level = rk3036_codec_set_bias_level,
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.controls = rk3036_codec_dapm_controls,
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.num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls),
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.dapm_routes = rk3036_codec_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes),
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.dapm_widgets = rk3036_codec_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets),
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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};
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static const struct regmap_config rk3036_codec_regmap_config = {
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.reg_bits = 32,
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.reg_stride = 4,
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.val_bits = 32,
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};
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#define GRF_SOC_CON0 0x00140
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#define GRF_ACODEC_SEL (BIT(10) | BIT(16 + 10))
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static int rk3036_codec_platform_probe(struct platform_device *pdev)
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{
|
|
struct rk3036_codec_priv *priv;
|
|
struct device_node *of_node = pdev->dev.of_node;
|
|
void __iomem *base;
|
|
struct regmap *grf;
|
|
int ret;
|
|
|
|
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
base = devm_platform_ioremap_resource(pdev, 0);
|
|
if (IS_ERR(base))
|
|
return PTR_ERR(base);
|
|
|
|
priv->base = base;
|
|
priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
|
|
&rk3036_codec_regmap_config);
|
|
if (IS_ERR(priv->regmap)) {
|
|
dev_err(&pdev->dev, "init regmap failed\n");
|
|
return PTR_ERR(priv->regmap);
|
|
}
|
|
|
|
grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf");
|
|
if (IS_ERR(grf)) {
|
|
dev_err(&pdev->dev, "needs 'rockchip,grf' property\n");
|
|
return PTR_ERR(grf);
|
|
}
|
|
ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk");
|
|
if (IS_ERR(priv->pclk))
|
|
return PTR_ERR(priv->pclk);
|
|
|
|
ret = clk_prepare_enable(priv->pclk);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "failed to enable clk\n");
|
|
return ret;
|
|
}
|
|
|
|
priv->dev = &pdev->dev;
|
|
dev_set_drvdata(&pdev->dev, priv);
|
|
|
|
ret = devm_snd_soc_register_component(&pdev->dev, &rk3036_codec_driver,
|
|
rk3036_codec_dai_driver,
|
|
ARRAY_SIZE(rk3036_codec_dai_driver));
|
|
if (ret) {
|
|
clk_disable_unprepare(priv->pclk);
|
|
dev_set_drvdata(&pdev->dev, NULL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void rk3036_codec_platform_remove(struct platform_device *pdev)
|
|
{
|
|
struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev);
|
|
|
|
clk_disable_unprepare(priv->pclk);
|
|
}
|
|
|
|
static const struct of_device_id rk3036_codec_of_match[] __maybe_unused = {
|
|
{ .compatible = "rockchip,rk3036-codec", },
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rk3036_codec_of_match);
|
|
|
|
static struct platform_driver rk3036_codec_platform_driver = {
|
|
.driver = {
|
|
.name = "rk3036-codec-platform",
|
|
.of_match_table = of_match_ptr(rk3036_codec_of_match),
|
|
},
|
|
.probe = rk3036_codec_platform_probe,
|
|
.remove_new = rk3036_codec_platform_remove,
|
|
};
|
|
|
|
module_platform_driver(rk3036_codec_platform_driver);
|
|
|
|
MODULE_AUTHOR("Rockchip Inc.");
|
|
MODULE_DESCRIPTION("Rockchip rk3036 codec driver");
|
|
MODULE_LICENSE("GPL");
|