2022-05-23 13:28:50 +00:00
|
|
|
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
//
|
|
|
|
// mt8186-afe-gpio.c -- Mediatek 8186 afe gpio ctrl
|
|
|
|
//
|
|
|
|
// Copyright (c) 2022 MediaTek Inc.
|
|
|
|
// Author: Jiaxin Yu <jiaxin.yu@mediatek.com>
|
|
|
|
|
|
|
|
#include <linux/pinctrl/consumer.h>
|
|
|
|
|
|
|
|
#include "mt8186-afe-common.h"
|
|
|
|
#include "mt8186-afe-gpio.h"
|
|
|
|
|
2023-04-07 11:55:53 +00:00
|
|
|
static struct pinctrl *aud_pinctrl;
|
2022-05-23 13:28:50 +00:00
|
|
|
|
|
|
|
enum mt8186_afe_gpio {
|
|
|
|
MT8186_AFE_GPIO_CLK_MOSI_OFF,
|
|
|
|
MT8186_AFE_GPIO_CLK_MOSI_ON,
|
|
|
|
MT8186_AFE_GPIO_CLK_MISO_OFF,
|
|
|
|
MT8186_AFE_GPIO_CLK_MISO_ON,
|
|
|
|
MT8186_AFE_GPIO_DAT_MISO_OFF,
|
|
|
|
MT8186_AFE_GPIO_DAT_MISO_ON,
|
|
|
|
MT8186_AFE_GPIO_DAT_MOSI_OFF,
|
|
|
|
MT8186_AFE_GPIO_DAT_MOSI_ON,
|
|
|
|
MT8186_AFE_GPIO_I2S0_OFF,
|
|
|
|
MT8186_AFE_GPIO_I2S0_ON,
|
|
|
|
MT8186_AFE_GPIO_I2S1_OFF,
|
|
|
|
MT8186_AFE_GPIO_I2S1_ON,
|
|
|
|
MT8186_AFE_GPIO_I2S2_OFF,
|
|
|
|
MT8186_AFE_GPIO_I2S2_ON,
|
|
|
|
MT8186_AFE_GPIO_I2S3_OFF,
|
|
|
|
MT8186_AFE_GPIO_I2S3_ON,
|
|
|
|
MT8186_AFE_GPIO_TDM_OFF,
|
|
|
|
MT8186_AFE_GPIO_TDM_ON,
|
|
|
|
MT8186_AFE_GPIO_PCM_OFF,
|
|
|
|
MT8186_AFE_GPIO_PCM_ON,
|
|
|
|
MT8186_AFE_GPIO_GPIO_NUM
|
|
|
|
};
|
|
|
|
|
|
|
|
struct audio_gpio_attr {
|
|
|
|
const char *name;
|
|
|
|
bool gpio_prepare;
|
|
|
|
struct pinctrl_state *gpioctrl;
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct audio_gpio_attr aud_gpios[MT8186_AFE_GPIO_GPIO_NUM] = {
|
|
|
|
[MT8186_AFE_GPIO_CLK_MOSI_OFF] = {"aud_clk_mosi_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_CLK_MOSI_ON] = {"aud_clk_mosi_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_CLK_MISO_OFF] = {"aud_clk_miso_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_CLK_MISO_ON] = {"aud_clk_miso_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_DAT_MISO_OFF] = {"aud_dat_miso_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_DAT_MISO_ON] = {"aud_dat_miso_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_DAT_MOSI_OFF] = {"aud_dat_mosi_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_DAT_MOSI_ON] = {"aud_dat_mosi_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S0_OFF] = {"aud_gpio_i2s0_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S0_ON] = {"aud_gpio_i2s0_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S1_OFF] = {"aud_gpio_i2s1_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S1_ON] = {"aud_gpio_i2s1_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S2_OFF] = {"aud_gpio_i2s2_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S2_ON] = {"aud_gpio_i2s2_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S3_OFF] = {"aud_gpio_i2s3_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_I2S3_ON] = {"aud_gpio_i2s3_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_TDM_OFF] = {"aud_gpio_tdm_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_TDM_ON] = {"aud_gpio_tdm_on", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_PCM_OFF] = {"aud_gpio_pcm_off", false, NULL},
|
|
|
|
[MT8186_AFE_GPIO_PCM_ON] = {"aud_gpio_pcm_on", false, NULL},
|
|
|
|
};
|
|
|
|
|
|
|
|
static DEFINE_MUTEX(gpio_request_mutex);
|
|
|
|
|
|
|
|
int mt8186_afe_gpio_init(struct device *dev)
|
|
|
|
{
|
|
|
|
int i, j, ret;
|
|
|
|
|
|
|
|
aud_pinctrl = devm_pinctrl_get(dev);
|
|
|
|
if (IS_ERR(aud_pinctrl)) {
|
|
|
|
ret = PTR_ERR(aud_pinctrl);
|
|
|
|
dev_err(dev, "%s(), ret %d, cannot get aud_pinctrl!\n",
|
|
|
|
__func__, ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(aud_gpios); i++) {
|
|
|
|
aud_gpios[i].gpioctrl = pinctrl_lookup_state(aud_pinctrl,
|
|
|
|
aud_gpios[i].name);
|
|
|
|
if (IS_ERR(aud_gpios[i].gpioctrl)) {
|
|
|
|
ret = PTR_ERR(aud_gpios[i].gpioctrl);
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), pinctrl_lookup_state %s fail, ret %d\n",
|
2022-05-23 13:28:50 +00:00
|
|
|
__func__, aud_gpios[i].name, ret);
|
|
|
|
} else {
|
|
|
|
aud_gpios[i].gpio_prepare = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* gpio status init */
|
|
|
|
for (i = MT8186_DAI_ADDA; i <= MT8186_DAI_TDM_IN; i++) {
|
|
|
|
for (j = 0; j <= 1; j++)
|
|
|
|
mt8186_afe_gpio_request(dev, false, i, j);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mt8186_afe_gpio_init);
|
|
|
|
|
|
|
|
static int mt8186_afe_gpio_select(struct device *dev,
|
|
|
|
enum mt8186_afe_gpio type)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (type < 0 || type >= MT8186_AFE_GPIO_GPIO_NUM) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), error, invalid gpio type %d\n",
|
2022-05-23 13:28:50 +00:00
|
|
|
__func__, type);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!aud_gpios[type].gpio_prepare) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), error, gpio type %d not prepared\n",
|
2022-05-23 13:28:50 +00:00
|
|
|
__func__, type);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = pinctrl_select_state(aud_pinctrl,
|
|
|
|
aud_gpios[type].gpioctrl);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), error, can not set gpio type %d\n",
|
2022-05-23 13:28:50 +00:00
|
|
|
__func__, type);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int mt8186_afe_gpio_adda_dl(struct device *dev, bool enable)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (enable) {
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_CLK_MOSI_ON);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MOSI CLK ON select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_DAT_MOSI_ON);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MOSI DAT ON select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_DAT_MOSI_OFF);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MOSI DAT OFF select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_CLK_MOSI_OFF);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MOSI CLK ON select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int mt8186_afe_gpio_adda_ul(struct device *dev, bool enable)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (enable) {
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_CLK_MISO_ON);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MISO CLK ON select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_DAT_MISO_ON);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MISO DAT ON select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_DAT_MISO_OFF);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MISO DAT OFF select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mt8186_afe_gpio_select(dev, MT8186_AFE_GPIO_CLK_MISO_OFF);
|
|
|
|
if (ret) {
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), MISO CLK OFF select fail!\n", __func__);
|
2022-05-23 13:28:50 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int mt8186_afe_gpio_request(struct device *dev, bool enable,
|
|
|
|
int dai, int uplink)
|
|
|
|
{
|
|
|
|
enum mt8186_afe_gpio sel;
|
|
|
|
int ret = -EINVAL;
|
|
|
|
|
|
|
|
mutex_lock(&gpio_request_mutex);
|
|
|
|
|
|
|
|
switch (dai) {
|
|
|
|
case MT8186_DAI_ADDA:
|
|
|
|
if (uplink)
|
|
|
|
ret = mt8186_afe_gpio_adda_ul(dev, enable);
|
|
|
|
else
|
|
|
|
ret = mt8186_afe_gpio_adda_dl(dev, enable);
|
|
|
|
goto unlock;
|
|
|
|
case MT8186_DAI_I2S_0:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_I2S0_ON : MT8186_AFE_GPIO_I2S0_OFF;
|
|
|
|
break;
|
|
|
|
case MT8186_DAI_I2S_1:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_I2S1_ON : MT8186_AFE_GPIO_I2S1_OFF;
|
|
|
|
break;
|
|
|
|
case MT8186_DAI_I2S_2:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_I2S2_ON : MT8186_AFE_GPIO_I2S2_OFF;
|
|
|
|
break;
|
|
|
|
case MT8186_DAI_I2S_3:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_I2S3_ON : MT8186_AFE_GPIO_I2S3_OFF;
|
|
|
|
break;
|
|
|
|
case MT8186_DAI_TDM_IN:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_TDM_ON : MT8186_AFE_GPIO_TDM_OFF;
|
|
|
|
break;
|
|
|
|
case MT8186_DAI_PCM:
|
|
|
|
sel = enable ? MT8186_AFE_GPIO_PCM_ON : MT8186_AFE_GPIO_PCM_OFF;
|
|
|
|
break;
|
|
|
|
default:
|
2023-03-29 08:04:18 +00:00
|
|
|
dev_dbg(dev, "%s(), invalid dai %d\n", __func__, dai);
|
2022-05-23 13:28:50 +00:00
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mt8186_afe_gpio_select(dev, sel);
|
|
|
|
|
|
|
|
unlock:
|
|
|
|
mutex_unlock(&gpio_request_mutex);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|