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android/drivers/misc/mediatek/connectivity/common/common_detect/wmt_gpio.c
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threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12) 
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

497 lines
12 KiB
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/*
* Copyright (C) 2011-2014 MediaTek Inc.
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU General Public License version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "wmt_gpio.h"
#if (LINUX_VERSION_CODE >> 8) == 0x40E
#include <wmt_build_in_adapter.h>
#endif
/*******************************************************************************
* C O M P I L E R F L A G S
********************************************************************************
*/
/*******************************************************************************
* M A C R O S
********************************************************************************
*/
/*******************************************************************************
* P U B L I C D A T A
********************************************************************************
*/
const PUINT8 gpio_state_name[GPIO_PIN_ID_MAX][GPIO_STATE_MAX] = {{"gpio_ldo_en_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"gpio_ldo_en_in_pulldown",
""},
{"gpio_pmuv28_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"gpio_pmuv28_in_pulldown",
""},
{"gpio_pmu_en_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"gpio_pmu_en_in_pulldown",
""},
{"gpio_rst_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"gpio_rst_in_pulldown",
""},
{"",
"",
"",
"",
"",
"",
"",
"gpio_bgf_eint_in_pull_dis",
"gpio_bgf_eint_in_pulldown",
"gpio_bgf_eint_in_pullup"},
{"",
"",
"",
"",
"",
"",
"",
"gpio_wifi_eint_in_pull_dis",
"",
"gpio_wifi_eint_in_pullup"},
{"",
"",
"",
"",
"",
"",
"",
"",
"gpio_all_eint_in_pulldown",
"gpio_all_eint_in_pullup"},
{"gpio_urxd_uart_pull_dis",
"",
"",
"gpio_urxd_uart_out_low",
"",
"",
"",
"gpio_urxd_gpio_in_pull_dis",
"",
"gpio_urxd_gpio_in_pullup"},
{"gpio_utxd_uart_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_pcm_daiclk_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_pcm_daipcmin_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_pcm_daipcmout_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_pcm_daisync_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_i2s_ck_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_i2s_ws_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_i2s_dat_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_gps_sync_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"gpio_gps_lna_pull_dis",
"",
"",
"",
"",
"",
"",
"",
"",
""},
{"",
"",
"",
"",
"",
"gpio_chip_deep_sleep_in_pull_dis",
"",
"",
"",
""},
{"",
"",
"gpio_chip_wake_up_pullup",
"",
"",
"",
"",
"",
"",
""}
};
const PUINT8 gpio_pin_name[GPIO_PIN_ID_MAX] = {"gpio_combo_ldo_en_pin",
"gpio_combo_pmuv28_en_pin",
"gpio_combo_pmu_en_pin",
"gpio_combo_rst_pin",
"gpio_combo_bgf_eint_pin",
"gpio_wifi_eint_pin",
"gpio_all_eint_pin",
"gpio_combo_urxd_pin",
"gpio_combo_utxd_pin",
"gpio_pcm_daiclk_pin",
"gpio_pcm_daipcmin_pin",
"gpio_pcm_daipcmout_pin",
"gpio_pcm_daisync_pin",
"gpio_combo_i2s_ck_pin",
"gpio_combo_i2s_ws_pin",
"gpio_combo_i2s_dat_pin",
"gpio_gps_sync_pin",
"gpio_gps_lna_pin",
"gpio_chip_deep_sleep_pin",
"gpio_chip_wake_up_pin"
};
GPIO_CTRL_INFO gpio_ctrl_info;
/*******************************************************************************
* F U N C T I O N S
********************************************************************************
*/
int __weak mt_get_gpio_mode_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_pull_select_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_in_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_out_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_pull_enable_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_dir_base(unsigned long pin)
{
return 0;
}
int __weak mt_get_gpio_ies_base(unsigned long pin)
{
return 0;
}
INT32 wmt_gpio_init(struct platform_device *pdev)
{
INT32 iret = 0;
UINT32 i, j;
struct device_node *node;
node = of_find_compatible_node(NULL, NULL, "mediatek,connectivity-combo");
if (!node) {
for (i = 0; i < GPIO_PIN_ID_MAX; i++)
gpio_ctrl_info.gpio_ctrl_state[i].gpio_num = DEFAULT_PIN_ID;
pr_err("wmt_gpio:can't find device tree node!\n");
iret = -1;
goto err;
}
gpio_ctrl_info.pinctrl_info = devm_pinctrl_get(&pdev->dev);
if (gpio_ctrl_info.pinctrl_info) {
for (i = 0; i < GPIO_PIN_ID_MAX; i++) {
gpio_ctrl_info.gpio_ctrl_state[i].gpio_num = of_get_named_gpio(node,
gpio_pin_name[i], 0);
if (gpio_ctrl_info.gpio_ctrl_state[i].gpio_num < 0)
gpio_ctrl_info.gpio_ctrl_state[i].gpio_num = DEFAULT_PIN_ID;
if (gpio_ctrl_info.gpio_ctrl_state[i].gpio_num != DEFAULT_PIN_ID) {
for (j = 0; j < GPIO_STATE_MAX; j++) {
if (strlen(gpio_state_name[i][j]) != 0) {
gpio_ctrl_info.gpio_ctrl_state[i].gpio_state[j] =
pinctrl_lookup_state(gpio_ctrl_info.pinctrl_info,
gpio_state_name[i][j]);
} else
gpio_ctrl_info.gpio_ctrl_state[i].gpio_state[j] = NULL;
}
} else {
for (j = 0; j < GPIO_STATE_MAX; j++)
gpio_ctrl_info.gpio_ctrl_state[i].gpio_state[j] = NULL;
}
}
pr_info("wmt_gpio: gpio init start!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_URXD_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_URXD_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_COMBO_URXD_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_UTXD_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_UTXD_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_COMBO_UTXD_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_PMU_EN_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_PMU_EN_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_COMBO_PMU_EN_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_PMU_EN_PIN].gpio_num != DEFAULT_PIN_ID) {
gpio_direction_output(gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_PMU_EN_PIN].gpio_num,
0);
pr_err("wmt_gpio:set GPIO_COMBO_PMU_EN_PIN out to 0: %d!\n",
gpio_get_value(gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_PMU_EN_PIN].gpio_num));
}
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_RST_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_RST_PIN].gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_COMBO_RST_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_RST_PIN].gpio_num != DEFAULT_PIN_ID) {
gpio_direction_output(gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_RST_PIN].gpio_num,
0);
pr_err("wmt_gpio:set GPIO_COMBO_RST_PIN out to 0: %d!\n",
gpio_get_value(gpio_ctrl_info.gpio_ctrl_state[GPIO_COMBO_RST_PIN].gpio_num));
}
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_WIFI_EINT_PIN].gpio_state[GPIO_IN_PULLUP]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_WIFI_EINT_PIN].gpio_state[GPIO_IN_PULLUP]);
} else
pr_err("wmt_gpio:set GPIO_WIFI_EINT_PIN to GPIO_IN_PULLUP fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAICLK_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAICLK_PIN].gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_PCM_DAICLK_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAIPCMIN_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAIPCMIN_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_PCM_DAIPCMIN_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAIPCMOUT_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAIPCMOUT_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_PCM_DAIPCMOUT_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAISYNC_PIN].gpio_state[GPIO_PULL_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_PCM_DAISYNC_PIN].
gpio_state[GPIO_PULL_DIS]);
} else
pr_err("wmt_gpio:set GPIO_PCM_DAISYNC_PIN to GPIO_PULL_DIS fail, is NULL!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_CHIP_DEEP_SLEEP_PIN].gpio_state[GPIO_IN_DIS]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_CHIP_DEEP_SLEEP_PIN].
gpio_state[GPIO_IN_DIS]);
} else
pr_warn("wmt_gpio:it may not be 6632 project, GPIO_CHIP_DEEP_SLEEP_PIN no need config!\n");
if (gpio_ctrl_info.gpio_ctrl_state[GPIO_CHIP_WAKE_UP_PIN].gpio_state[GPIO_PULL_UP]) {
pinctrl_select_state(gpio_ctrl_info.pinctrl_info,
gpio_ctrl_info.gpio_ctrl_state[GPIO_CHIP_WAKE_UP_PIN].
gpio_state[GPIO_PULL_UP]);
} else
pr_warn("wmt_gpio:it may not be 6632 project, GPIO_CHIP_WAKE_UP_PIN no need config!\n");
pr_info("wmt_gpio: gpio init done!\n");
} else {
pr_err("wmt_gpio:can't find pinctrl dev!\n");
iret = -1;
}
#if (LINUX_VERSION_CODE >> 8) == 0x40E
KERNEL_mtk_wcn_cmb_sdio_request_eirq();
#endif
err:
return iret;
}
INT32 wmt_gpio_deinit(VOID)
{
INT32 iret = 0;
UINT32 i;
UINT32 j;
for (i = 0; i < GPIO_PIN_ID_MAX; i++) {
gpio_ctrl_info.gpio_ctrl_state[i].gpio_num = DEFAULT_PIN_ID;
if (gpio_ctrl_info.gpio_ctrl_state[i].gpio_num != DEFAULT_PIN_ID) {
for (j = 0; j < GPIO_STATE_MAX; j++) {
if (strlen(gpio_state_name[i][j]) != 0)
gpio_ctrl_info.gpio_ctrl_state[i].gpio_state[j] = NULL;
}
}
}
if (gpio_ctrl_info.pinctrl_info) {
devm_pinctrl_put(gpio_ctrl_info.pinctrl_info);
gpio_ctrl_info.pinctrl_info = NULL;
}
return iret;
}
VOID _wmt_dump_gpio_regs(INT32 idx)
{
ULONG idxl = (ULONG)idx;
pr_info("PIN: [MODE] [PULL_SEL] [DIN] [DOUT] [PULL EN] [DIR] [IES]\n");
pr_info("idx = %3d: %d %d %d %d %d %d %d\n",
idx, mt_get_gpio_mode_base(idxl),
mt_get_gpio_pull_select_base(idxl),
mt_get_gpio_in_base(idxl),
mt_get_gpio_out_base(idxl),
mt_get_gpio_pull_enable_base(idxl),
mt_get_gpio_dir_base(idxl),
mt_get_gpio_ies_base(idxl));
}
VOID _wmt_gpio_pre_regs(INT32 num, WMT_GPIO_STATE_INFO *gpio_state)
{
gpio_state->gpio_num = num;
gpio_state->mode = mt_get_gpio_mode_base(num);
gpio_state->pull_sel = mt_get_gpio_pull_select_base(num);
gpio_state->in = mt_get_gpio_in_base(num);
gpio_state->out = mt_get_gpio_out_base(num);
gpio_state->pull_en = mt_get_gpio_pull_enable_base(num);
gpio_state->dir = mt_get_gpio_dir_base(num);
gpio_state->ies = mt_get_gpio_ies_base(num);
}
VOID _wmt_dump_gpio_pre_regs(WMT_GPIO_STATE_INFO gpio_state)
{
pr_info("PIN: [MODE] [PULL_SEL] [DIN] [DOUT] [PULL EN] [DIR] [IES]\n");
pr_info("idx = %3d: %d %d %d %d %d %d %d\n",
gpio_state.gpio_num, gpio_state.mode,
gpio_state.pull_sel, gpio_state.in,
gpio_state.out, gpio_state.pull_en,
gpio_state.dir, gpio_state.ies);
}
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