218 lines
6 KiB
C
218 lines
6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2016 MediaTek Inc.
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*/
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#include <generated/autoconf.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <mt-plat/mtk_devinfo.h>
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#include <mt-plat/upmu_common.h>
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#include "include/pmic.h"
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#include "include/regulator_codegen.h"
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#if defined(CONFIG_MACH_MT6781)
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#include <linux/of_gpio.h>
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static unsigned int g_is_new_power_grid;
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unsigned int is_pmic_new_power_grid(void)
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{
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return g_is_new_power_grid;
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}
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void record_is_pmic_new_power_grid(struct platform_device *pdev)
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{
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unsigned int GPIO200_idx = 0;
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GPIO200_idx = of_get_named_gpio(pdev->dev.of_node, "pmic,init_gpio", 0);
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if (gpio_get_value(GPIO200_idx))
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g_is_new_power_grid = 1;
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pr_info("[PMIC] (GPIO200)(%d) = %d\n", GPIO200_idx, g_is_new_power_grid);
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}
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#endif
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void record_md_vosel(void)
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{
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g_vmodem_vosel = pmic_get_register_value(PMIC_RG_BUCK_VMODEM_VOSEL);
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pr_info("[%s] vmodem_vosel = 0x%x\n", __func__, g_vmodem_vosel);
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}
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/* [Export API] */
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#if defined(CONFIG_MACH_MT6781)
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void vmd1_pmic_setting_on(void)
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{
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unsigned int vsram_md_vosel = 0x4F; /*993750*/
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/* 1.Call PMIC driver API configure VMODEM voltage */
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if (g_vmodem_vosel != 0) {
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if (is_pmic_new_power_grid())
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pmic_config_interface(PMIC_RG_LDO_VSRAM_CORE_VOSEL_ADDR, vsram_md_vosel,
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PMIC_RG_LDO_VSRAM_CORE_VOSEL_MASK,
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PMIC_RG_LDO_VSRAM_CORE_VOSEL_SHIFT);
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else
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pmic_set_register_value(PMIC_RG_LDO_VSRAM_OTHERS_VOSEL, vsram_md_vosel);
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pmic_set_register_value(PMIC_RG_BUCK_VMODEM_VOSEL, g_vmodem_vosel);
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pr_info("[%s] set vmodem=0x%x vsram_md=0x%x\n"
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, __func__, g_vmodem_vosel, vsram_md_vosel);
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} else {
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pr_notice("[%s] vmodem vosel has not recorded!\n", __func__);
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record_md_vosel();
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}
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}
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#else
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void vmd1_pmic_setting_on(void)
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{
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/* 1.Call PMIC driver API configure VMODEM voltage */
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if (g_vmodem_vosel != 0) {
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pmic_set_register_value(PMIC_RG_BUCK_VMODEM_VOSEL,
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g_vmodem_vosel);
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} else {
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pr_notice("[%s] vmodem vosel has not recorded!\n", __func__);
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g_vmodem_vosel =
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pmic_get_register_value(PMIC_RG_BUCK_VMODEM_VOSEL);
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pr_info("[%s] vmodem_vosel = 0x%x\n",
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__func__, g_vmodem_vosel);
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}
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if (pmic_get_register_value(PMIC_DA_VMODEM_VOSEL) != g_vmodem_vosel)
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pr_notice("[%s] vmodem vosel = 0x%x, da_vosel = 0x%x",
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__func__,
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pmic_get_register_value(PMIC_RG_BUCK_VMODEM_VOSEL),
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pmic_get_register_value(PMIC_DA_VMODEM_VOSEL));
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}
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#endif
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void vmd1_pmic_setting_off(void)
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{
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PMICLOG("%s\n", __func__);
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}
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void pmic_enable_smart_reset(unsigned char smart_en,
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unsigned char smart_sdn_en)
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{
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pr_notice("[%s] pwrkey %s, JUST_SMART_RST:%d\n", __func__,
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pmic_get_register_value(PMIC_PWRKEY_DEB)?"released":"pressed",
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pmic_get_register_value(PMIC_JUST_SMART_RST));
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pmic_set_register_value(PMIC_RG_SMART_RST_MODE, smart_en);
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pmic_set_register_value(PMIC_RG_SMART_RST_SDN_EN, smart_sdn_en);
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pr_info("[%s] smart_en:%d, smart_sdn_en:%d\n",
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__func__, smart_en, smart_sdn_en);
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}
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void wk_pmic_enable_sdn_delay(void)
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{
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pmic_set_register_value(PMIC_TMA_KEY, 0x9CA7);
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pmic_set_register_value(PMIC_RG_SDN_DLY_ENB, 0);
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pmic_set_register_value(PMIC_TMA_KEY, 0);
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}
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static unsigned int pmic_scp_set_regulator(struct mtk_regulator mt_reg,
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enum PMU_FLAGS_LIST vosel_reg, unsigned int voltage, bool is_sleep_vol)
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{
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unsigned int min_uV = mt_reg.desc.min_uV;
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unsigned int uV_step = mt_reg.desc.uV_step;
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unsigned int n_voltages = mt_reg.desc.n_voltages;
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unsigned short set_step = 0;
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unsigned short get_step = 0;
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set_step = (voltage - min_uV) / uV_step;
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if (voltage < min_uV || set_step >= n_voltages) {
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pr_notice("[%s] SSHUB_%s Set Wrong voltage=%duV is unsupportable range %d-%duV\n"
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, __func__
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, mt_reg.desc.name
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, voltage
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, min_uV
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, (n_voltages * uV_step + min_uV));
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return voltage;
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}
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pr_info("SSHUB_%s Expected %svolt step = %d\n",
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mt_reg.desc.name, is_sleep_vol?"sleep ":"", set_step);
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pmic_set_register_value(vosel_reg, set_step);
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udelay(220);
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get_step = pmic_get_register_value(vosel_reg);
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if (get_step != set_step) {
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pr_notice("[%s] Set SSHUB_%s Voltage fail with step = %d, read voltage = %duV\n"
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, __func__, mt_reg.desc.name, set_step
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, (get_step * uV_step + min_uV));
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return voltage;
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}
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pr_info("Set SSHUB_%s %sVoltage to %duV pass\n",
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mt_reg.desc.name, is_sleep_vol?"sleep ":"", voltage);
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return 0;
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}
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/*
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* SCP set VCORE voltage, return 0 if success,
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* otherwise return set voltage(uV)
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*/
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unsigned int pmic_scp_set_vcore(unsigned int voltage)
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{
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return pmic_scp_set_regulator(
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mt_bucks[MT6358_POWER_BUCK_VCORE],
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PMIC_RG_BUCK_VCORE_SSHUB_VOSEL, voltage, false);
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}
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unsigned int pmic_scp_set_vcore_sleep(unsigned int voltage)
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{
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return pmic_scp_set_regulator(
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mt_bucks[MT6358_POWER_BUCK_VCORE],
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PMIC_RG_BUCK_VCORE_SSHUB_VOSEL_SLEEP, voltage, true);
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}
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/*
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* SCP set VSRAM_CORE(VSRAM_OTHERS) voltage, return 0 if success,
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* otherwise return set voltage(uV)
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*/
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unsigned int pmic_scp_set_vsram_vcore(unsigned int voltage)
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{
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return pmic_scp_set_regulator(
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mt_ldos[MT6358_POWER_LDO_VSRAM_OTHERS],
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PMIC_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL, voltage, false);
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}
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unsigned int pmic_scp_set_vsram_vcore_sleep(unsigned int voltage)
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{
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return pmic_scp_set_regulator(
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mt_ldos[MT6358_POWER_LDO_VSRAM_OTHERS],
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PMIC_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_SLEEP, voltage, true);
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}
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/*****************************************************************************
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* PMIC charger detection
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******************************************************************************/
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unsigned int upmu_get_rgs_chrdet(void)
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{
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unsigned int val = 0;
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val = pmic_get_register_value(PMIC_RGS_CHRDET);
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PMICLOG("[%s] CHRDET status = %d\n", __func__, val);
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return val;
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}
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int is_ext_vbat_boost_exist(void)
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{
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return 0;
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}
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int is_ext_swchr_exist(void)
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{
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return 0;
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}
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/*****************************************************************************
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* Enternal BUCK status
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******************************************************************************/
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int is_ext_buck_gpio_exist(void)
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{
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return pmic_get_register_value(PMIC_RG_STRUP_EXT_PMIC_EN);
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}
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MODULE_AUTHOR("Jeter Chen");
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MODULE_DESCRIPTION("MT PMIC Device Driver");
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MODULE_LICENSE("GPL");
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